| Entries |
| Document | Title | Date |
|---|
| 20090033152 | CONTROLLING INRUSH CURRENT FROM A POWER SUPPLY TO A LOAD - Apparatus ( | 02-05-2009 |
| 20090039704 | Simple circuit and method for improving current balance accuracy of a power converter system - A power converter system includes multiple converter modules connected to a share bus. Each of the converter modules mirrors the phase current of itself to provide a mirror current to the share bus, extracts an average current from the share bus, and compares the phase current of itself with the average current it extracts from the share bus to produce an output signal for modulation of the phase current of itself. Specifically, each of the converter modules is provided with a resistor connected to the share bus such that all the resistors are connected in parallel, and thus each of the resistors automatically receives an average current from the share bus. | 02-12-2009 |
| 20090302682 | METHOD AND SYSTEM FOR REDUCING SWITCHING LOSSES IN A HIGH-FREQUENCY MULTI-CELL POWER SUPPLY - A method of reducing switching losses in a power supply includes the steps of advancing the output voltage of a first pole of a power cell by a first angle, retarding the output voltage of a second pole of the power cell by a second angle, and producing a combined output voltage of the power cell equal to a positive pulse of a duration angle equal to the sum of the first angle and the second angle for a first half of a switching cycle of the power cell, and equal to a negative pulse of a duration angle equal to the sum of the first angle and the second angle for a second half of the switching cycle of the power cell. | 12-10-2009 |
| 20090302683 | Multi-Rail Power-Supply System - A multi-rail power-supply system provides power to circuitry requiring at least one additional rail between a high and a low-voltage rail. The system comprises a first power regulator that interconnects the high-voltage rail and an intermediate node and sets a first voltage rail that has a magnitude that is less than the high-voltage rail, wherein current that flows from the high-voltage rail is employed by a first set of peripheral circuitry prior to sinking through the first power regulator to the intermediate node. The system further comprises a second power regulator that interconnects the intermediate node and the low-voltage rail and sets a second voltage rail that has a magnitude that is greater than the low-voltage rail, wherein current that flows from the intermediate node is sourced by the second regulator and is employed by a second set of peripheral circuitry prior to flowing to the low-voltage rail. | 12-10-2009 |
| 20100052425 | Networked multi-inverter maximum power point tracking - A group of solar power stations with inverters are adjusted in order to achieve optimum power output in accordance with maximum power-point tracking (MPPT). The MPPT data is used to perform adjustments. Power measurement factors, including Maximum Power Points (MPPs) are established to represent a bus-voltage setting that produces the maximum power output from an individual photovoltaic panel. These settings are established for the group so as to optimize power output under a variety of operating conditions. | 03-04-2010 |
| 20100102632 | CIRCUIT, USE, AND METHOD FOR OPERATING A CIRCUIT - A circuit, use, and method for operating a circuit is provided that includes a regulated first voltage source for providing a supply voltage at an output of the first voltage source for a subcircuit, an adjustable second voltage source for providing an output voltage to supply the subcircuit, and an evaluation circuit, which is connected to an output of the second voltage source and to a control input of the second voltage source and to the output of the first voltage source. Wherein the evaluation circuit is formed to adjust the output voltage of the second voltage source by means of a control signal at the control input of the second voltage source with evaluation of the supply voltage at the output of the first voltage source, and wherein the evaluation circuit and/or the second voltage source have a memory for storing values of the adjustment. | 04-29-2010 |
| 20100133909 | SOFT-START CIRCUIT - An apparatus is provided. The apparatus comprises an input circuit, a startup circuit, and a current limiter. The input circuit is coupled to a first source and is adapted to provide a first voltage and a first current to a load having a capacitance. The startup circuit is coupled to the input circuit and to the first source, and the startup circuit includes a current source and a startup capacitor coupled in series with one another. The current limiter has a cascode circuit and a discharge circuit. The cascode circuit has a bias transistor and a power transistor coupled in series with one another to provide a second voltage and a second current to the load, where the bias transistor is coupled to a second source and where the bias transistor generally operates as source follower during startup. The discharge circuit is coupled to a node between the bias transistor and the power transistor of the cascode circuit and coupled to a node between the startup current source. | 06-03-2010 |
| 20100164288 | DISTRIBUTED MULTIPHASE CONVERTERS - A direct current to pulse amplitude modulated (“PAM”) current converter, denominated a “PAMCC”, is connected to an individual source of direct current. The PAMCC receives direct current and provides pulse amplitude modulated current at its output. The pulses are produced at a high frequency relative to the signal modulated on a sequence of pulses. The signal modulated onto a sequence of pulses may represent portions of a lower frequency sine wave or other lower frequency waveform, including DC. When the PAMCC's output is connected in parallel with the outputs of similar PAMCCs an array of PAMCCs is formed, wherein the output pulses of the PAMCCs are out of phase with respect to each other. An array of PAMCCs constructed in accordance with the present invention form a distributed multiphase inverter whose combined output is the demodulated sum of the current pulse amplitude modulated by each PAMCC. | 07-01-2010 |
| 20100194200 | Multiple Supply-Voltage Power-Up/Down Detectors - A multiple supply voltage device includes an input/output (I/O) network operative at a first supply voltage, a core network coupled to the I/O network and operative at a second supply voltage, and a power-on-control (POC) network coupled to the I/O network and the core network. The POC network is configured to transmit a POC signal to the I/O network and includes an adjustable current power up/down detector configured to detect a power state of the core network. The POC network also includes processing circuitry coupled to the adjustable current power up/down detector and configured to process the power state into the POC signal, and one or more feedback circuits. For reducing the leakage current while also improving the power-up/down detection speed, the feedback circuit(s) are coupled to the adjustable current power up/down detector and configured to provide feedback signals to adjust a current capacity of the adjustable current power up/down detector. | 08-05-2010 |
| 20100320840 | Method and Apparatus for Driving Low-Power Loads from AC Sources - Method and apparatus for providing controllable power to the load via AC-line power source where load is less than minimal required for proper operation of said source. In one example LED lamp connected to AC power source via conventional triac-based dimmer uses less power than minimum required for proper operation of said dimmer. In another example LED lamp connected to AC power source via device known as electronic transformer uses less power than required for proper operation of said electronic transformer. | 12-23-2010 |
| 20100327658 | SYSTEM FOR MANAGING POWER BASED ON CURRENT MONITORING - A system includes a power bus and a circuit. The power bus delivers power from a first power source to an output node. The circuit monitors a current flowing through the power bus and provides power from a second power source to the output node based on an amount of the current, and maintains a voltage level of the output node in a predetermined range. | 12-30-2010 |
| 20110006606 | VOLTAGE REGULATOR CIRCUIT - A voltage regulator circuit includes: a first pulse generator configured to output a pulse whose level remains unchanged when an input signal of a first circuit is in a first period, and whose level changes from a second level to a first level when an edge of the input signal of the first circuit is detected after the first period; a second pulse generator configured to output a pulse from a time that the pulse output by the first pulse generator becomes the first level until a second period elapses; a first field-effect transistor having a source connected to a power supply potential node, and a drain connected to a power supply potential terminal of the first circuit; and a first switch configured to cause a potential at a gate of the first field-effect transistor to be a first potential. | 01-13-2011 |
| 20110043039 | UNIVERSAL IRRIGATION CONTROLLER POWER SUPPLY - Described herein are systems, methods and apparatuses for providing power to an irrigation controller. In one implementation, an apparatus comprises an alternating current (AC) to direct current (DC) voltage converter configured to convert an input AC voltage into a DC voltage. An AC voltage generator is coupled to the AC to DC voltage converter, wherein the AC voltage generator is configured to generate an output AC voltage using the DC voltage. The AC voltage generator is further coupled to the irrigation controller, and the AC voltage generator is configured to supply the output AC voltage to the irrigation controller. | 02-24-2011 |
| 20110101778 | Battery charging coaction and output system with current limit supply - The present invention relates to a power system utilizing an engine generator or public power with AC source, wherein the power system particularly has the characteristics that the maximum output current thereof is limited by electromagnetic effects, and/or constant current or nearly constant current output thereof is set to be lower than the maximum output current, for powering a load, and charging a battery, or jointly powering a load with a battery; when an engine generator set is utilized to be power supply, during operation, the engine operates with the best brake specific fuel consumption and/or the range of revolutions and torque for better energy saving. | 05-05-2011 |
| 20110109159 | Active Low-Pass Current Filter - An active low-pass current filter apparatus and method reduces conducted emissions above a predefined cutoff frequency at high power levels. The apparatus and method use a bidirectional DC-DC converter to minimize current fluctuations on a power lead that may result in conducted emissions above the predefined cutoff frequency. The bidirectional DC-DC converter absorbs current from the power lead and feeds current to the load lead as needed to compensate for the current fluctuations on the power lead. Power to the DC-DC converter is provided by a separate auxiliary power source. A monitoring circuit compares the voltage level of the auxiliary power source to a reference voltage and compensates for variations in the voltage level of the auxiliary power source without interfering with the suppression of the conducted emissions. | 05-12-2011 |
| 20110115294 | DUAL VOLTAGE-SOURCE INVERTER SYSTEM AND METHOD - Systems and methods are disclosed for a dual voltage-source inverter system. The systems and methods selectively couple a first voltage source and a second voltage source to an inverter via a controllable switch. | 05-19-2011 |
| 20110148202 | METHODS AND APPARATUS FOR POWER FACTOR CORRECTION AND REDUCTION OF DISTORTION IN AND NOISE IN A POWER SUPPLY DELIVERY NETWORK - Methods and apparatus for power factor correction include selectively coupling bit reactive loads with a load having dynamic reactive properties to dynamically correct a power factor. Methods and apparatus for reducing distortion in a power delivery system include a means for determining distortion in a power line, forming a corrective signal according to the distortion and selectively sinking and sourcing current to the power line according to the corrective signal. Furthermore, power for a solar power system is injected into a load via the same apparatus. | 06-23-2011 |
| 20110221275 | High output impedance current source - The high output impedance current source utilizes an opto-coupler integrated circuit to provide a high output impedance, regulated current to a load. The circuit includes an initial voltage source for energizing an LED. The light intensity of the LED is controlled by varying the voltage source or by a separate resistor. The LED selectively controls on-off gating of a phototransistor. The current supplied to an electrical load is a function of the light intensity produced by the LED, thus also being a function of the controlled initial voltage. The emitter of the phototransistor is connected to its base, thus making the output resistance of the current source very high and equal to that of a reverse-biased diode as long as the collector-to-base junction remains in the reverse-biased mode. The high output impedance current source can also be used as a voltage-to-current converter. | 09-15-2011 |
| 20110273016 | DISTRIBUTED POWER HARVESTING SYSTEMS USING DC POWER SOURCES - A method for maintaining reliability of a distributed power system including a power converter having input terminals and output terminals. Input power is received at the input terminals. The input power is converted to an output power at the output terminals. A temperature is measured in or in the environment of the power converter. A temperature signal is input responsive to the temperature. The power conversion is controlled by adjusting the input power based on the temperature signal. The power conversion of the input power to the output power may be controlled to maximize the input power by setting at the input terminals the input voltage or the input current according to predetermined criteria. One of the predetermined criteria is configured to reduce the input power based on the temperature signal responsive to the temperature. The adjustment of input power reduces the input voltage and/or input current thereby lowering the temperature of the power converter. | 11-10-2011 |
| 20110291481 | POWER SOURCE APPARATUS WITH FUSE-IMPLEMENTED OVER-CURRENT CUT-OFF - The power source apparatus is provided with batteries | 12-01-2011 |
| 20120025612 | METHODS AND CIRCUITS FOR POWER SWITCHING - The present invention relates to a method and a circuit for power switching. The method comprises the steps of: providing a operation circuit; receiving a command from a Host and setting up a power mode of the operation circuit; supplying a first rated consuming power source and then a second rated consuming power source to the operation circuit via the power switching circuit according to power mode; detecting the transferring process form the first rated consuming power source to second rated consuming power source; and preventing over current according to detecting result. | 02-02-2012 |
| 20120074784 | AN INTELLIGENT LIGHTING TILE SYSTEM POWERED FROM MULTIPLE POWER SOURCES - This invention relates to a power unit for a lighting system. Said power unit includes a mains power input ( | 03-29-2012 |
| 20120080952 | CURRENT AND VOLTAGE DETECTION CIRCUIT, AND CURRENT CONTROL CIRCUIT - Disclosed is a current and voltage detection circuit comprising: a voltage input terminal to which a direct current voltage is applied; a voltage comparison circuit that determines which of the applied voltage and a predetermined voltage is larger; a switching element connected in series to a current-voltage conversion unit, between a positive electrode terminal of the power supply and a reference potential point of the circuit; and a control circuit that generates a control signal of the switching element in response to output of the voltage comparison circuit, wherein the circuit turns ON the switching element and determines the voltage, by the voltage comparison circuit, when a voltage supply capability or current supply capability is low; and turns OFF the switching element by the control signal and determines the voltage, when the voltage comparison circuit determines that the voltage is higher than the predetermined voltage. | 04-05-2012 |
| 20120086275 | CONTROL CIRCUITRY FOR RECEIVING POWER ON ELECTRONIC DEVICES AND COMPUTERS - A switching OR buck power receiver or receiving circuit is provided for electronic devices. The power receiver or power receiving circuit includes a plurality of power input lines arranged in parallel, a controller, and a buck circuit element. Each power input line is connectable to a corresponding power source, and further includes a switching element. | 04-12-2012 |
| 20120228940 | POWER SUPPLY SWITCHING SYSTEM - A power supply switch system for switching power supply to an electronic device, includes an adaptor, a charger module, a battery electrically connected to the charger module and a switch module. The adaptor outputs a voltage signal. The charger module receives the voltage signal and outputs control signals. The switch module receives the control signals and switches the adaptor and the battery to provide power supply to the electronic device. When the adaptor is powered on, the charger module controls the switch module to turn off a first connection between the battery and the electronic device; the charger module controls the switch module to turn on a second connection between the adaptor and the electronic device; and the adaptor provides the power supply to the electronic device. | 09-13-2012 |
| 20120248873 | ENERGY STORAGE SYSTEMS - A method for controlling an energy storage system for connection to a power system, and such an energy storage system are provided. The method makes use of a model based predictive controller to optimize the charging/discharging rates of energy storage elements in a hybrid energy storage system. The method includes determining respective desired charging/discharging rates for the energy storage elements in dependence upon state of charge predictions from respective models of the storage elements, using model predictive control, and adjusting respective charging/discharging rates of the storage elements in accordance with the determined rates. The energy system includes a controller configured to control respective charging/discharging rates of the energy storage elements in accordance with the method. | 10-04-2012 |
| 20120256490 | Integrated Expandable Grid-Ready Solar Electrical Generator - The generator of the present invention is a complete 220V or 120V AC solar electrical generator that is ready to be directly connected to utility power grid, and more than one of the generators can be connected in parallel to power the grid or to power an isolated electrical system. The generator is integrated with a solar panel that converts solar energy into electrical energy, a Max Power Point Tracking (MPPT) controller that dynamically adjust the output power of the generator to maximize the power of the solar energy, a high efficiency low harmonic digital signal process (DSP) technology based synthetic DC to AC converter that provides 220V or 120V AC power, a synchronizing controller that enables the generator to be connected to the utility power grid or connected to other generators, a power factor compensation unit that reduces the reactive power to improve power quality, a protection unit to prevent the generator from hazardous accident, an energy meter that measures the energy generated by the solar panel and the energy feed into the utility power grid, and a communication unit that sends the parameters such as the voltage, the current, the temperature of the solar panel, the efficiency and related data of MPPT, the timing of AC power and the other information about the generator to the other generators and central controller and receives the information and control commands from the other generators and central controller through AC wire or wirelessly. The generator can be optionally to be equipped with proper battery for some isolated applications. | 10-11-2012 |
| 20120292999 | REDUNDANT MODULE WITH SYMMETRICAL CURRENT PATHS - The invention relates to a redundant module for decoupling short-circuit currents in a redundant voltage supply. The redundant module comprises at least two power supply units, and the number of inputs corresponds at least to the number of power supply units. Each input is routed via a separate current path to a common current node of an output for providing an output current. Each current path forms a decoupling section, and at least one measuring element for measuring the input voltage, the input current, and/or the input power as well as a control element for regulation purposes are assigned to each decoupling section. | 11-22-2012 |
| 20120319483 | Apparatus for bi-directional power switching in low voltage vehicle power distribution systems - A plurality of modules each including at least a pair of series connected power MOSFETs are configured between a plurality of DC voltage sources, and a plurality output terminals for connection to respective loads, are controlled for selectively applying power to the loads via time delay switching incorporating forward biased intrinsic diodes of the MOSFETs in a given current path during initial application of power to a load, whereby a predetermined period of time after turning on one of the series connected MOSFETs, the associated other MOSFET is turned on to shunt its intrinsic diode for reducing the resistance in the current path to maximize current flow. The configuration of the plurality of power MOSFETs is also controlled for selectively providing bi-directional current flow between said plurality of DC voltage sources. | 12-20-2012 |
| 20120319484 | Current limited linear and switching regulators - Circuits and methods for current limited DC-to-DC converters having multiple power sources have been disclosed. One of multiple power sources is activated by a multiplexer. A current sensing unit, deployed close to the multiplexer, detects if an input current to the DC-to-DC converter has reached a current limit. In case the current limit is reached a signal is sent to the DC-to-DC converter to reduce the current drawn the DC-to-DC converter. | 12-20-2012 |
| 20120326511 | METHODS AND APPARATUS FOR CONTROLLING OPERATION OF PHOTOVOLTAIC POWER PLANTS - A photovoltaic power plant includes a photovoltaic inverter that converts direct current generated by solar cells to alternating current. The output of the photovoltaic inverter is provided to a point of interconnection to a power grid. A meter at the point of interconnection may be read to detect the output of the photovoltaic inverter at the power grid. The photovoltaic power plant includes a plant controller with a state machine. The plant controller is configured to adjust setpoints of the photovoltaic inverter to control the output of the photovoltaic power plant. The plant controller is also configured to soft start and soft stop automatic voltage regulation (AVR) of the photovoltaic power plant to prevent perturbing the AVR. | 12-27-2012 |
| 20130015710 | DISTRIBUTED INVERTER AND INTELLIGENT GATEWAY - A system and apparatus for generating power. In one embodiment, the apparatus comprises a power module for coupling to a DC power source via a DC bus, wherein the power module (i) converts a first power from the DC power source to a second power, and (ii) comprises a maximum power point tracking module unit for dynamically adjusting a load voltage of the DC power source; an AC bus; and a controller, physically separate from the power module and coupled to the power module via the AC bus, for operatively controlling the power module. | 01-17-2013 |
| 20130062948 | MULTIPLE-INPUT DRIVING DEVICE - The present invention relates to a multiple-input driving device, which receives at least one electrical power that shows a voltage. The multiple-input driving device uses interaction among a voltage regulation module, a control module, and a conversion module to simultaneously the functions of voltage regulation, input through pushbutton switch, driving a light-emitting diode with regulated power or driving the light-emitting diode with input of pulse width modulated power. | 03-14-2013 |
| 20130088083 | ELECTRICITY SUPPLY SYSTEM - [Problem] To provide an electricity supply system that efficiently utilizes electricity. | 04-11-2013 |
| 20130106189 | METHODS AND APPARATUS TO CONTROL POWER IN A PRINTER | 05-02-2013 |
| 20130187465 | POWER MANAGEMENT SYSTEM - A power management system which carries out charge-discharge control according to lack of storage cell pack characteristic uniformity. A power storage device comprises a power storage unit, a power system switching circuit, and a power management unit. The power management unit: acquires charge information (for example, charge rate SOC) on each of a plurality of storage cell packs contained in the power storage unit; compares the size of said charge information according to the minimum and maximum values thereof respectively with an upper bound and a lower bound, and switches a charge switch and a discharge switch of the power system switching circuit; and transitions the power storage unit between a charge-discharge state, a charge state, and a discharge state. | 07-25-2013 |
| 20130187466 | POWER MANAGEMENT SYSTEM - Provided is a power management system, wherein charging/discharging is conducted while reliably preventing overcharging/over-discharging, and charging/discharging control of a storage-battery system comprising a plurality of storage battery units is conducted. An overall storage-battery-unit management unit detects voltages of storage-battery packs composing the storage-battery system, voltages of unit cells composing the storage-battery packs, and serial voltages of the storage battery units, each of which comprises a plurality of storage-battery packs connected in series. Charging is stopped when either of these voltages exceeds an upper limit value, and discharging is stopped when either of these voltages is less than a lower limit value. | 07-25-2013 |
| 20130214602 | METHOD AND SYSTEM FOR GENERATOR CONTROL - In certain embodiments, the present invention includes a system for generator set control comprising a controller and two or more power generators configured to supply power to an electrical load. The two or more power generators are coupled to the controller, where the controller is configured to synchronize the two or more power generators with one another. In some embodiments, the controller is configured to automatically shut off or turn on at least one of the two or more power generators in response to the electrical load to increase the overall power efficiency of the system. In further embodiments, the system is configured to operate in ambient temperature environments ranging from − | 08-22-2013 |
| 20130241289 | SWITCHING POWER SUPPLY DEVICE AND CONTROL CIRCUIT THEREOF - A control circuit of a switching power supply device has a first current source capable of supplying an auxiliary current to a load resistance of the switching power supply device when a load current flowing through the load resistance increases, a second current source capable of pulling in a current from the load resistance when the load current flowing through the load resistance decreases, and an auxiliary current controller configured to activate the first current source or the second current source from when a variation in the load current flowing through the load resistance is detected to have exceeded a predetermined level until a current flowing through the inductor becomes equal to the current flowing through the load resistance. | 09-19-2013 |
| 20130241290 | FILTER CIRCUIT AND BIDIRECTIONAL POWER CONVERSION APPARATUS INCLUDING THEREOF - According to one embodiment, a filter circuit includes a first filter that includes two first capacitors connected in series, two single-phase AC reactors connected to one ends of the two first capacitors, respectively, a second capacitor connected at one end to a neutral point of the two first capacitors, and a third capacitor connected between another ends of the two single-phase AC reactors, and a second filter that includes two common mode chokes and two fourth capacitors connected in series between one ends of the two common mode chokes. | 09-19-2013 |
| 20130264875 | ULTRACAPACITOR AND BATTERY COMBINATION WITH ELECTRONIC MANAGEMENT SYSTEM - This disclosure provides systems, methods and apparatus for a combined battery/capacitor energy storage device. The device includes a first device terminal, a second device terminal, a battery connected between the first terminal and the second terminal, and a capacitor connected in parallel with the battery. In one aspect, a rectifier is connected between the first terminal and the capacitor, the rectifier configured to allow substantially unidirectional current flow from the first terminal to the capacitor. In another aspect, a switch is between the capacitor and the first terminal. In another aspect, a current limiter extends between the first terminal and the capacitor. | 10-10-2013 |
| 20130264876 | INVERTER ASSEMBLY AND SOLAR POWER PLANT COMPRISING THE SAME - An inverter assembly having a DC circuit, inverter, and controller (CTRL) configured to control the inverter, the inverter being, for example, a multilevel inverter having a first half bridge (HB | 10-10-2013 |
| 20130278065 | BATTERY SYSTEM - A battery system includes a battery panel which includes a battery pack including a plurality of secondary battery cells, and a battery management unit to monitor at least one of a voltage, a temperature and a degradation level of the secondary battery cell; and a DC/DC conversion device. The DC/DC conversion device includes an interactive DC/DC converter which converts power discharged from the battery pack into a prescribed voltage to output converted power, and converts power supplied from outside into a prescribed voltage to output converted power; a control unit which controls the interactive DC/DC converter; a communication unit which communicates with the battery management unit and the control unit; a control source unit; and a battery connected to a power supply line of the control source unit through a switch. | 10-24-2013 |
| 20130278066 | Electronic Control Device and Method for Reducing Stand-By State Energy Consumption of an Electric Household Appliance - A household appliance ( | 10-24-2013 |
| 20140001858 | MULTIPLE-INPUT SOFT-SWITCHING POWER CONVERTERS | 01-02-2014 |
| 20140015322 | CIRCUIT AND METHOD FOR PROVIDING HOLD-UP TIME IN A DC-DC CONVERTER - A power conversion system and method includes a DC-DC converter and an auxiliary circuit configured to ensure that a minimum input voltage is provided to the DC-DC converter during power interruption and for at least a predetermined hold-up time period. The auxiliary circuit includes an energy storage device, an auxiliary energy source for charging the energy storage device, and a clamping circuit to limit the energy stored by the energy storage device to a threshold voltage. A discharge time of the energy storage device from the threshold voltage to the minimum voltage thereby exceeds the predetermined hold-up time, but is only incrementally greater such that the size of the energy storage device is substantially reduced. The auxiliary energy source may typically be a current source, with the clamping circuit being control logic effective to disable the current source as a voltage across the storage device approaches the threshold. | 01-16-2014 |
| 20140015323 | Power Management System - A system to energy being used from the electric grid as well as being used and generated from one or more energy generators or fuel-powered turbines, including, but not limited to, natural gas generators, fuel cells, diesel generators, bio-diesel generators, ethanol generators, propane generators, biogas generators and kerosene generators, or a combination of any or all of these sources, with or without a battery energy storage system, resulting in (a) a reduction of the peak power demand from the electric grid of a user of the system, and/or (b) a reduction of the high consumption charges during times in which consumption costs are higher due to variable billing or otherwise, and/or (c) the ability to provide energy to the user of the system at a time that such user is offsetting, in whole or in part, a reduction of its demand from the electric grid to, among other things, quality for, participate in and/or satisfy the requirements of demand response or similar programs with third parties. | 01-16-2014 |
| 20140035373 | ILLUMINATION AGNOSTIC SOLAR PANEL - In one example, a photovoltaic module includes a plurality of discrete photovoltaic cells arranged in a plurality of cell rows, and a substantially electrically conductive and continuous area backsheet. The photovoltaic cells in each cell row are electrically connected in parallel to each other. The cell rows are electrically connected in series to each other and include a first row and a last row. The backsheet forms a current return path between the first and last rows. The photovoltaic cells are configured such that, in operation, current flows substantially uni-directionally through the plurality of photovoltaic cells between the first row and the last row. | 02-06-2014 |
| 20140035374 | POWER CONTROL SYSTEM - To provide a power control system which evaluates an applied control pattern over a period of a certain length or more, so as to be used for the subsequent control with a configuration in which a discharge start time and output of an electric storage device are changed. | 02-06-2014 |
| 20140042813 | SYSTEM, APPARATUS AND METHOD FOR UNINTERRUPTIBLE POWER SUPPLY - An uninterruptible power supply device, and method of use thereof, including a multiple-input source AC converter for receiving an AC input voltage and a DC input voltage, an inverter including a combiner module for combining the input power sources, and an AC/AC switching transformer, the inverter being controlled by a controller to provide an output voltage signal, the controller configured to sample the input voltage signal, the switching signal current and the output voltage signal, and to control the switching transformer based thereon so as to render the output voltage signal sinusoidal. | 02-13-2014 |
| 20140049108 | POWER SYSTEM WITH COMBINATION OF ACTIVE CURRENT SHARING AND DROOP CURRENT SHARING AND POWER SYSTEM ASSEMBLY USING THE SAME - A power system with a combination of active current sharing and droop current sharing is disclosed. The power system includes a system load and plural power supplies connected with each other and connected to the system load. The power supplies are configured to respectively output a load current to the system load, and each power supply includes an active current sharing circuit and a droop current sharing circuit. The active current sharing circuit is configured to enter an operation or shutdown mode depending on whether the load current is higher than a first current set point. The droop current sharing circuit is configured to enter an operation or shutdown mode depending on whether the load current is higher than a second current set point. Hence, each power supply can respectively output an equal share of the load current by an active current sharing technique and/or a droop current sharing technique. | 02-20-2014 |
| 20140049109 | METHOD AND APPARATUS FOR DELIVERING POWER USING EXTERNAL DATA - A control system for an energy storage system located behind a utility meter uses a unique, feedback-based, communication and control method to reliably and efficiently maximize economic return of the energy storage system. Operating parameters for the energy storage system are calculated at an external, centralized data center, and are selected to prevent electrical power demand of an electric load location from exceeding a specified set-point by discharging energy storage devices, such as DC batteries, through a bidirectional energy converter during peak demand events. The control system can operate autonomously in the case of a communications failure. | 02-20-2014 |
| 20140049110 | MATRIX CONVERTER AND METHOD FOR GENERATING AN AC VOLTAGE IN A SECOND AC VOLTAGE GRID FROM AN AC VOLTAGE IN A FIRST AC VOLTAGE GRID BY MEANS OF A MATRIX CONVERTER - A matrix inverter is connected to a first and a second multi-phase A.C. voltage network. First inductive elements are connected to the first A.C. voltage network and second inductive elements are connected to the second A.C. voltage network. A switch matrix connects the ends of the first inductive elements, to the ends of the second inductive elements. The switch matrix has inverter units. A regulation arrangement is connected to control inputs of the inverter units. The matrix inverter has a first inverter unit, which is arranged between the ends of the first inductive circuit elements and earth potential. The matrix inverter has a second inverter unit, connected between the ends of the first inductive circuit elements and the ends of the second inductive circuit elements. The regulation arrangement insures that the electrical power flowing to the matrix inverter is equal to the electrical power flowing out of the matrix inverter. | 02-20-2014 |
| 20140077601 | INVERTER THAT CONVERTS DC POWER INTO AC POWER - An inverter converts a direct-current (DC) power supplied from different DC power supplies into an alternate-current (AC) power formed by a quasi sinusoidal wave and then outputs the thus converted AC power. A first absolute-value setting switch to a fourth absolute-value setting switch are switched to generate absolute values of AC power by using a combination of a power-supply voltage supplied from each DC power supply and a voltage generated from a voltage supplied from each DC power supply. A first polarity setting switch to a fourth polarity setting switch are switched to generate the polarities of AC power. A control unit controls the switching of the first absolute-value setting switch and the like and the first polarity setting switch and the like. The control unit switches the first polarity switching switch and the like with timing at which the polarity of quasi sinusoidal wave changes. | 03-20-2014 |
| 20140111012 | Methods and Voltage Regulator for Power Distribution in a Hybrid System - Methods and a voltage regulator are provided for distributing power sourcing in a hybrid power plant system. The voltage regulator is configured to monitor an output power of a generator and control an excitation signal provided to the generator based at least in part on the generator output power. | 04-24-2014 |
| 20140111013 | ELECTRICAL POWER SUPPLY SYSTEM WITH ALTERABLE CAPACITY - An electrical power supply system has electrical energy storage modules and an interconnection interface. Each module includes connection terminals of opposite polarities and an energy storage element connected between them. The interface includes pairs of input terminals and output terminals for a load's power supply. Each pair of input terminals connects removably to connection terminals of a respective storage module. The interface forms parallel branches between the two output terminals. Each includes a storage element. Each branch includes a rheostat in series with a corresponding storage element of the branch. The interface includes a device for measuring current passing through each of the branches, and a control circuit for controlling resistances of the rheostats of the branches as a function of the measured current so as to maintain a current intensity passing through the rheostats to be below a threshold. | 04-24-2014 |
| 20140132072 | CURRENT OUTPUT CIRCUIT AND TWO-WIRE TRANSMITTER - A current output circuit for a two-wire transmitter includes a first current source circuit configured to output a first current controlled by a control voltage generated based on a physical quantity, a second current source circuit configured to output a second current controlled by the first current, a first shunt voltage source circuit configured to generate an internal power source of the two-wire transmitter from the second current, a third current source circuit configured to generate a third current controlled by a reference voltage, and a second shunt voltage source circuit configured to generate a power source of the second current source circuit by the third current. The current output circuit is configured to output a predetermined current controlled by the control voltage based on the first current, the second current and the third current to an external circuit through two transmission lines. | 05-15-2014 |
| 20140139027 | CONTROL DEVICE FOR HYBRID ELECTRIC POWER SYSTEM - A electric power control device for a hybrid electric power system according to the present disclosure includes an electric power measuring unit that is configured to measure output electric power of the electric power system, and a controller that is configured to control operations of a first electric power generator and a second electric power generator of the electric power system based on a preset control mode and the measured output electric power, wherein the controller controls an output voltage of the first electric power generator to be a first offset voltage corresponding to an output of the second electric power generator for a first time when the output of the second electric power generator is controlled to be switched from an ON state into an OFF state. | 05-22-2014 |
| 20140145505 | METHOD FOR OPERATING AN INVERTER AND AN INVERTER - A method for operating an inverter, and an inverter for coupling with a photovoltaic array having at least one photovoltaic panel are disclosed. The inverter can be configured: to connect output poles of the photovoltaic array in short circuit with each other; to measure a current supplied by the photovoltaic array through the output poles after they have been connected in short circuit with each other; and to start a DC-to-AC conversion of power supplied by the photovoltaic array if the measured current exceeds a predetermined threshold. | 05-29-2014 |
| 20140152105 | OUTPUT CONTROL DEVICE AND OUTPUT CONTROL METHOD FOR WIND FARM - An output control device for a wind farm which includes n number of wind turbines includes a WTG output obtaining unit for obtaining a current output P | 06-05-2014 |
| 20140152106 | CURRENT GENERATION CIRCUIT - A current generating circuit that includes a first current source that generates a first current having a negative temperature coefficient a second current source that generates a second current having a positive temperature coefficient. A compensation circuit generates a common current using a first transistor that receives the first current and a second transistor formed in a mirroring structure, a third transistor that receives the second current, and a fourth transistor formed in a mirroring structure. In addition, the compensation circuit provides the common current as an output current using a transistor that is formed in at least a pair of mirroring structures. | 06-05-2014 |
| 20140152107 | PHOTOVOLTAIC POWER GENERATION SYSTEM | 06-05-2014 |
| 20140159490 | POWER CONVERTER, ELECTRONIC DEVICE AND METHOD FOR DETECTING OUTPUT POWER OF POWER CONVERTER - A method for detecting output power of a power converter is applied for detecting power outputted from the power converter as an electronic device is electrically connected with the power converter. The method comprises the following steps: First, it is to control a battery of the electronic device to supplies power to the electronic device and disconnecting a power supply path of supplying the power from the power converter to the electronic device. After disconnecting the power supply path, the impedance of the voltage dividing circuit of the power converter is regulated to vary the power supply voltage outputted to the electronic device. And then, the varied power supply voltage is detected and the power outputted form the power converter will be recognized according to the power supply voltage. | 06-12-2014 |
| 20140159491 | FAULT DIAGNOSIS METHOD, GRID INTERCONNECTION APPARATUS, AND CONTROLLER - A fault diagnosis method of diagnosing a fault related to a PV PCS | 06-12-2014 |
| 20140167513 | Systems Approach To Photovoltaic Energy Extraction - Described is a method and apparatus for per-panel photovoltaic energy extraction with integrated converters. Also described are switched-capacitor (SC) converters have been evaluated for many applications because of the possibility for on-chip integration; applications to solar arrays are no exception. Also described is a comprehensive system-level look at solar installations, finding possibilities for optimization at and between all levels of operation in an array. Specifically, novel concepts include new arrangements and options for applying switched-capacitor circuits at 3 levels: for the panel and sub-panel level, as part of the overall control strategy, and for ensuring stable and robust interface to the grid with the possibility of eliminating or reducing the use of electrolytic capacitors. | 06-19-2014 |
| 20140183953 | THREE PORT CONVERTER WITH DUAL INDEPENDENT MAXIMUM POWER POINT TRACKING AND DUAL OPERATING MODES - A method and apparatus for a three port converter with independent dual input comprising: a first DC port for coupling a first half-bridge circuit of the three-port converter to a first external DC line, a second DC port for coupling a second half-bridge circuit of the three-port converter to a second external DC line, wherein the second half-bridge circuit is decoupled from the first half-bridge circuit, and an AC port for coupling to an external AC line, wherein (i) the first half-bridge circuit and the second half-bridge circuit are operated as a full H-bridge during a full-bridge operating mode, and (ii) the first half-bridge circuit or the second half-bridge circuit is operated as a half H-bridge during a half-bridge operating mode. | 07-03-2014 |
| 20140191578 | INTEGRATED CIRCUIT POWER SUPPLY REGULATOR - The current signature of an electronic function is masked by controlling a current source that supplies power for the electronic function is controlled in a dynamically-varying manner. Excess current is detected and compared to a threshold. If the detected excess current meets the threshold, the operation of the electronic function is modified, for example by controlling a clock. | 07-10-2014 |
| 20140203645 | CONVERTER ASSEMBLY - A converter assembly has at least one a.c. voltage terminal at which an alternating current can be fed in or tapped and at least one d.c. voltage terminal at which a direct current can be fed in or tapped. The converter assembly includes at least two series connections, which are connected in parallel and the external terminals of which form d.c. voltage terminals of the converter assembly. Each of the series connections that are connected in parallel includes at least two sub-modules that are connected in series, each formed with at least two switches and a capacitor. At least one of the sub-modules has a terminal at which electrical energy can be drawn from the sub-module or electrical energy can be fed into the sub-module. | 07-24-2014 |
| 20140203646 | METHOD AND APPARATUS FOR POWER IMBALANCE CORRECTION IN A MULTI-PHASE POWER GENERATOR - A method and apparatus for power imbalance correction comprising: a plurality of converters for converting a plurality of DC inputs to a multi-phase AC output, and coupling the multi-phase AC output to a multi-phase AC line, and a controller coupled to the plurality of converters. The controller determining whether phases of the multi-phase AC output are balanced, and controlling when all phases of the multi-phase AC output are not balanced, at least one converter of the plurality of converters to balance the multi-phase AC output. | 07-24-2014 |
| 20140203647 | DISTRIBUTED POWER GENERATION SYSTEM AND METHOD OF OPERATING THE SAME - The distributed power generation system includes: an inverter connected to the first connection point; a first power generator; a current sensor provided on the power line between the commercial power supply and the first connection point; and a controller. In a case where a current flowing in a direction from the first connection point to the commercial power supply is a positive current, in a state where the inverter is disconnected, the controller determines that there is an abnormality in an installation state of the current sensor, or gives a notification of the abnormality in the installation state of the current sensor, if differential power that is obtained by subtracting power consumed by the electrical load from output power of the inverter is greater than a first threshold greater than 0. | 07-24-2014 |
| 20140239722 | PHOTOVOLTAIC POWER GENERATION SYSTEM, CONTROL METHOD AND CONTROL PROGRAM FOR PHOTOVOLTAIC POWER GENERATION SYSTEM - A photovoltaic power generation system includes a photovoltaic power generator including a plurality of PV modules, and a PV inverter that connects an output by the photovoltaic power generator to a power grid. The ratio of a rated output by the photovoltaic power generator defined by a rated output by the PV modules relative to a rated output by the PV inverter is equal to or greater than 140%. The photovoltaic power generation system further includes a battery unit, a battery inverter that connects an output by the battery unit to a power grid, and a controller that adjusts an output by the battery unit in such a way that an output by the battery inverter becomes equal to or greater than a preset electric power together with an output by the PV inverter. | 08-28-2014 |
| 20140252860 | METHOD AND ARRANGEMENT FOR OPERATING PHOTOVOLTAIC SYSTEM AND PHOTOVOLTAIC SYSTEM - Exemplary embodiments are directed to a system, method, apparatus, and arrangement for operating a photovoltaic system. The photovoltaic system including a boost converter having a controllable duty ratio, at least two strings of photovoltaic panels supplying an input of the boost converter, wherein the strings are connected in parallel with each other. The system having detector configured to detect a reverse current in any of the strings, and a controller configured to increase, in response to the detection of a reverse current in at least one of the strings, the duty ratio of the boost converter at least until the reverse current stops. | 09-11-2014 |
| 20140265582 | SWITCH-MODE POWER SUPPLY WITH A DUAL PRIMARY TRANSFORMER - A switch-mode power supply that includes a transformer coupled to an alternating current (AC) power source and a direct current (DC) power source, wherein the AC power source is electrically isolated from the DC power source. The switch-mode power supply further includes a first controller configured to regulate a first voltage output from the AC power source, and a second controller configured to regulate a second voltage output from the DC power source when the transformer is not receiving power from the AC output. | 09-18-2014 |
| 20140265583 | DIRECT CURRENT TRANSMISSION AND DISTRIBUTION SYSTEM AND METHOD OF OPERATING THE SAME - A direct current (DC) transmission and distribution (T&D) system includes a plurality of DC-to-DC converter devices defining a plurality of isolatable portions of the DC T&D system. The DC T&D system also includes a DC T&D control system coupled to the DC-to-DC converter devices. The DC T&D control system includes a plurality of current sensors. At least one of the current sensors is positioned at one of the DC-to-DC converter devices. The current sensor is configured to transmit signals representative of a value of DC electric current transmission through the DC-to-DC converter device. The DC T&D control system also includes a plurality of processors. At least one processor is coupled to the current sensor and the DC-to-DC converter device. The processor is configured to regulate DC current transmission through the DC-to-DC converter device as a function of the value of DC current transmission through the DC-to-DC converter device. | 09-18-2014 |
| 20140265584 | Online Surveillance System to Protect Solar Power Plants - A method and apparatus is disclosed that can monitor the solar power inverters in real-time both day and night, and generate surveillance alarms and actions when a solar power inverter is removed or disconnected from the AC powerline for unknown reasons. It offers a low cost and reliable surveillance means to help guard a residential-scale, commercial-scale, or utility-scale solar power system in real-time at all times. | 09-18-2014 |
| 20140265585 | INTERFACE FOR RENEWABLE ENERGY SYSTEM - An improved interface for renewable energy systems is disclosed for interconnecting a plurality of power sources such as photovoltaic solar panels, windmills, standby generators and the like. The improved interface for renewable energy systems includes a multi-channel micro-inverter having novel heat dissipation, novel mountings, electronic redundancy and remote communication systems. The improved interface for renewable energy systems is capable of automatic switching between a grid-tied operation, an off grid operation or an emergency power operation. | 09-18-2014 |
| 20140265586 | IMPLEMENTATION OF FIRE SAFETY SHUTDOWN FOR SOLAR PANELS WITH HIGH RELIABILITY - System and method for restricting output power from multiple serially coupled DC power sources, such as a solar cell array, controlled by power balancing circuitry, thereby enabling power restriction in the event of an emergency. Output bypass circuitry allows the output voltage to be selectively restricted, and though power for switching between states would be needed, use of bi-stable bypass circuitry would avoid a need for power to remain in a state of bypass operation. Additionally, with the serially coupled DC power sources controlled by power balancing circuitry, use of solid-state current switching elements ensures continued output power restriction due to the clamping action of the body diodes upon the output voltage. | 09-18-2014 |
| 20140265587 | POWER CONVERSION SYSTEM AND METHOD - A power conversion system includes a first converter effectively connected in series to a second converter. Each converter has a plurality of output levels. A phase-shifted transformer is coupled to the converters. The phase-shifted transformer has a delta-wound winding and an open star winding. The first converter is coupled to the open star winding and the second converter is coupled to the delta winding. The open star winding is configured for direct connection to either of a load or the open star winding of a second phase-shifted transformer, having a delta winding connected to a third converter. One or more DC voltage sources are each connected to the first and second converters by a respective DC link capacitor. Each DC voltage source is connected to a common power grid by an isolated multiphase transformer winding. | 09-18-2014 |
| 20140265588 | AC BATTERY EMPLOYING MAGISTOR TECHNOLOGY - A DC/AC converter incorporates at least one Magistor module having a first sp control switch, a second sz control switch and a third sm control switch. An AC source is connected to an input of the at least one Magistor module. A switch controller connected to the first sp control switch, second sz control switch and third sm control switch to and provides pulse width modulation (PWM) activation of the switches for controlled voltage at an output. | 09-18-2014 |
| 20140285021 | CAPACITIVE LOAD DRIVING CIRCUIT - A driving circuit is a circuit selectively outputting one of a staircase wave and a square wave from an output terminal, to drive a capacitive load, and includes a first power source supplying a constant voltage VH, a first FET connected between the output terminal and the first power source, a first transformer in which an output side coil is connected to a gate of the first FET, a first input terminal connected to an input side coil of the first transformer via a capacitive element, a second power source supplying a constant voltage VL, a second FET connected between the output terminal and the second power source, a second transformer in which an output side coil is connected to a gate of the second FET, and a second input terminal connected to an input side coil of the second transformer via a capacitive element. | 09-25-2014 |
| 20140292084 | METHOD OF CONTROLLING THE OPERATION OF A HYBRID SYSTEM - A method of controlling operation of a hybrid continuous current supply, the current supply including a fuel cell stack, a battery, and a DC/DC converter including an input and an output, the converter input being connected to the fuel cell stack output and the output being connected to a variable load in parallel with the battery, the fuel cell stack being formed of a plurality of electrochemical cells configured to produce electricity from a fuel and an oxidizing gas. | 10-02-2014 |
| 20140306533 | VIRTUAL INVERTER FOR POWER GENERATION UNITS - A gateway controller allows a plurality of individual power generation units coupled to an electrical distribution grid to be controlled in a coordinated fashion. The gateway controller allows control of the plurality of individual power generation units as a single power generation unit. The gateway controller may determine required control parameters of the power generation units that will provide a desired combined behavior, such as combined alternating current injected into the grid, and issues commands to the power generation units based on the determined control parameters. | 10-16-2014 |
| 20140306534 | PMU BASED DISTRIBUTED GENERATION CONTROL FOR MICROGRID DURING ISLANDING PROCESS - A method for voltage regulation of a power distribution grid includes integrating a photovoltaic (PV) system with a distributed energy storage system (ESS); monitoring voltage and current phasors at a point of common coupling (PCC) to establish a real-time Thevenin equivalent of the distribution grid; and adaptively dispatching the ESS in response to network fluctuations. | 10-16-2014 |
| 20140306535 | ELECTRONIC APPARATUS AND IMAGE FORMING APPARATUS - An electronic apparatus comprises: a displacement unit provided to an electronic apparatus main body; a first power source provided to the main body and supplying power to a load provided to the displacement unit; a first connecting unit that opens and closes a first supply path supplying an electric current from the first power source to the load in response to displacement of the displacement unit; a limiting unit provided on the first supply path and limiting an electric current flowing through the first supply path for a predetermined time from when an electric current is supplied from a second power source; and a second connecting unit that opens and closes a second supply path supplying an electric current from the second power source to the limiting unit in response to the displacement, wherein the first connecting unit opens and closes the second supply path in response to the displacement. | 10-16-2014 |
| 20140306536 | POWER SUPPLY CIRCUIT - Power supply circuit comprises an under voltage protection module and a voltage conversion module electrically connected to the under voltage protection module. The under voltage protection module is electrically connected to a first power supply and a second power supply. The voltage conversion module is connected to the first power supply. When a voltage of the first power supply is in a normal range, the under voltage protection module offers the second power supply to power the voltage conversion module. The voltage conversion module converts the voltage of the first power supply into an operational voltage, and outputs the operational voltage. When the voltage of the first power supply is less than a threshold voltage, the under voltage protection module does not offer the second power supply to the voltage conversion module, and the voltage conversion module does not operate. | 10-16-2014 |
| 20140319915 | POWER ADAPTER WITH PROPORTIONAL CURRENT SHARING AND MOBILE ELECTRONIC DEVICE HAVING THE SAME - A power adapter with proportional current sharing is provided to supply power for a mobile electronic device. The power adapter includes a plurality of power modules. Each power module has a power unit, a current-sharing integrated circuit, and a shunt resistor. The power unit receives an external power source and provides an output power. The current-sharing integrated circuit is electrically connected to the power unit. The shunt resistor is electrically connected between a power output terminal of the power unit and the current-sharing integrated circuit. When the power modules are electrically connected in parallel to each other, each power units provides a connection signal to the mobile electronic device via the corresponding shunt resistor. In addition, the current-sharing integrated circuits are used to distribute output power of the corresponding power unit according to the required of the mobile electronic device. | 10-30-2014 |
| 20140339897 | CONTROLLED SWITCHED CAPACITOR COEFFICIENTS - A switched capacitor circuit including two or more capacitors arranged in a switched capacitor circuit configuration with a comparator comparing a node whose potential varies with the charging of one or more of the switched capacitors. The switched capacitor circuit also has two or more current sources scaled relative to one another coupled to the capacitors and to the comparator, where the current from one current source charges at least two of the capacitors in series during the charge portion of the cycle, and the other current source charges at least one of but at least one fewer of the capacitor(s) during the charge portion of the cycle, and where the current sources are enabled at the beginning of the charge portion of the cycle, but where the comparator disables the current sources once the node reaches a reference potential. | 11-20-2014 |
| 20140339898 | INTEGRATED SOLAR AND BATTERY INVERTER - A circuitry arrangement includes two-pole connectors for connecting a battery and a further voltage source. The plus pole of one connector and the minus pole of the other connector are directly connected to a plus pole and a minus pole of a DC voltage link. The plus and minus poles of the one connector are connected via a first parallel circuit of a switch and a diode and a first choke connected in series. The minus and plus poles of the other connector are connected via a second parallel circuit of a switch and a diode and a second choke connected in series. A connection between choke ends of the two parallel circuits is electrically conductive at least for alternating currents. The two chokes are magnetically coupled in that their winding senses on a common magnetic core are equal as viewed from the connection between the two parallel circuits. | 11-20-2014 |
| 20140346878 | SEMICONDUCTOR INTEGRATED CIRCUIT AND OPERATING METHOD THEREOF - The present invention is made to not only reduce voltage drop when a power supply circuit makes a selection between a power supply voltage from a main power supply and a backup power supply voltage from an auxiliary power supply, but also reduce the power consumption of the auxiliary power supply. The power supply circuit, which is in a semiconductor integrated circuit, includes a measurement circuit, a switch control circuit, and a switch circuit. The switch circuit includes a first switch element and a second switch element. The first switch element is coupled between an output terminal and a first input terminal. The second switch element is coupled between the output terminal and a second input terminal. The measurement circuit operates on the main power supply voltage at the first input terminal and compares the main power supply voltage with the auxiliary power supply voltage. | 11-27-2014 |
| 20140346879 | POWER MODULE - A power module ( | 11-27-2014 |
| 20140346880 | POWER CONVERSION APPARATUS - When a snubber capacitor is charged to at least a predetermined voltage, a protection circuit renders conductive a clamp diode provided on current paths to complete the charging of the snubber capacitor. | 11-27-2014 |
| 20140346881 | VOLTAGE GENERATING CIRCUITS BASED ON A POWER-ON CONTROL SIGNAL - A circuit includes a power-on control circuit and a voltage generating circuit. The power-on control circuit is configured to cause a power-on control signal to follow a voltage level of a first supply voltage during a first time period that a voltage level of a second supply voltage is less than a threshold value, and to set the power-on control signal to have a voltage level of a reference voltage during a second time period that the voltage level of the second supply voltage is greater than the threshold value. The voltage generating circuit is configured to generate a voltage signal responsive to the power-on control signal. | 11-27-2014 |
| 20140354056 | UNINTERRUPTIBLE POWER SUPPLY SYSTEM - An uninterruptible power supply system including a rectification circuit, a power calibrating conversion circuit, an inverting conversion circuit, an LC circuit, a first output switch, a second output switch and a relay switch is disclosed. The rectification circuit couples to the main electricity. The power calibrating conversion circuit couples to the rectification circuit, and includes an independent drive unit and a switch unit. The inverting conversion circuit couples to the power calibrating conversion circuit. The LC circuit couples between output neutral terminal and output ground terminal. The first output switch couples between the LC circuit and the inverting conversion circuit. The second output switch couples between the inverting conversion circuit and output live terminal. The relay switch couples between the input neutral terminal and the LC circuit. When the relay switch turns on, the input neutral terminal connects with the output neutral terminal through the LC circuit. | 12-04-2014 |
| 20140354057 | RESONANT CONVERTER APPARATUS AND CONTROL METHOD FOR THE SAME - A resonant converter apparatus includes a first pre-regulator, a first resonant converter, a second pre-regulator, a second resonant converter and a controller. The first pre-regulator receives a first input voltage and generates a first output voltage. The first resonant converter receives the first output voltage and generates a supply voltage. The second pre-regulator receives a second input voltage and generates a second output voltage. The second resonant converter receives the second output voltage and generates the supply voltage, in which an output of the second resonant converter is electrically connected in parallel with an output of the first resonant converter. The controller controls the first pre-regulator and the second pre-regulator such that the first resonant converter and the second resonant converter generate identical output currents in accordance with controlled operations of the first pre-regulator and the second pre-regulator. A control method for a resonant converter apparatus is also disclosed herein. | 12-04-2014 |
| 20140354058 | POWER CONVERTER AND POWER SUPPLYING METHOD THEREOF - A power converter includes a DC/DC converting circuit and a first energy storage element. The DC/DC converting circuit includes a first output terminal and a second output terminal. The first energy storage element includes a first terminal and a second terminal. The first output terminal of the DC/DC converting circuit is electrically connected to one terminal of an external load. The first terminal of the first energy storage element is electrically connected to the second output terminal of the DC/DC converting circuit. The second terminal of the first energy storage element is electrically connected to the other terminal of the external load. The DC/DC converting circuit is configured to provide a variable electric power. The power converter provides the power supply according to the DC/DC converting circuit and the first energy storage element, and the variable electric power is less than the power required by the external load. | 12-04-2014 |
| 20140361622 | POWER DEVICE - A control device controls first and second direct-current power converter circuits so that a switching operation for at least one of a pair of first and second switching devices included in the first direct-current power converter circuit and a pair of first and third switching devices included in the second direct-current power converter circuit is performed. The control device controls a switching operation of the first switching device and the second switching device included in the first direct-current power converter circuit based on a first duty. In the switching operation, the first switching device and the second switching device are inverted and the alternative close and open (ON/OFF) switching operations of each first and second switching device are performed. The control device controls a switching operation of the first switching device and the third switching device included in the second direct-current power converter circuit based on a second duty. | 12-11-2014 |
| 20140368040 | VOLTAGE-STACKED SYSTEM FOR MANAGING STACKED VOLTAGE SOURCES BY USING MULTIPLE MONITORING CIRCUITS - A voltage-stacked system includes a first voltage source, at least one second voltage source, a master monitoring circuit and at least one slave monitoring circuit. The first voltage source and the at least one second voltage source are coupled in series. The master monitoring circuit is coupled to the first voltage source, and arranged for monitoring and controlling the first voltage source and transmitting a monitoring signal. The at least one slave monitoring circuit is respectively coupled to the at least one second voltage source and the master monitoring circuit for monitoring and controlling the at least one second voltage source, and accordingly sending a response signal to the master monitoring circuit. | 12-18-2014 |
| 20140368041 | RECONFIGURABLE HYBRID ENERGY STORAGE SYSTEM FOR ELECTRIFIED VEHICLES - The embodiments described herein relate to a reconfigurable energy storage system. In one embodiment, the reconfigurable energy storage system comprises a first energy storage system, a second energy storage system and a power converter. The power converter determines a first power level, a second power level and a load coupled to the power converter and manipulates the power transfer between the energy storage systems based on the first power level, the second power level and the load. In another embodiment, the reconfigurable energy storage system also comprises a third energy storage system. In this embodiment, the power converter determines a third power level corresponding to the third energy storage system and manipulates the power transfer between the energy storage systems based also on the third power level. The third power level may correspond to a state of charge of the third energy storage element or amount of power generated by the third energy storage system. | 12-18-2014 |
| 20140375130 | Circuit, Use, and Method for Operating a Circuit - A circuit, use, and method for operating a circuit is provided that includes a regulated first voltage source for providing a supply voltage at an output of the first voltage source for a subcircuit, an adjustable second voltage source for providing an output voltage to supply the subcircuit, and an evaluation circuit, which is connected to an output of the second voltage source and to a control input of the second voltage source and to the output of the first voltage source. Wherein the evaluation circuit is formed to adjust the output voltage of the second voltage source by means of a control signal at the control input of the second voltage source with evaluation of the supply voltage at the output of the first voltage source, and wherein the evaluation circuit and/or the second voltage source have a memory for storing values of the adjustment. | 12-25-2014 |
| 20140375131 | SINGLE PHASE INVERTERS COOPERATIVELY CONTROLLED TO PROVIDE ONE, TWO, OR THREE PHASE UNIPOLAR ELECTRICITY - The systems, methods, and devices of the various embodiments provide single phase inverters that may be cooperatively controlled to provide one, two, or three phase unipolar electricity. In an embodiment, a solar panel may be connected to a DC to DC converter and a unipolar power converter. In an embodiment, the unipolar power converter output may be a single phase signal approximating a desired voltage waveform and frequency, offset from the ground electrical potential such that the voltage output signal may be always positive, thus “unipolar”. In an embodiment, the unipolar power output of each string of solar panels may be connected to a dedicated, predetermined phase of a load, such as a three phase grid system. In an embodiment, the DC output of a DC to DC converter may be connected in parallel with other DC to DC converters and other unipolar converters. | 12-25-2014 |
| 20150008743 | Power Supply System - A power supply system comprises: a second electric power converter that converts power discharged by electric power storage means to AC power and that converts charging power to the electric power storage means to DC power; a second current detector that detects the current that is output from the second electric power converter; an electric characteristic computation section that calculates the output current I | 01-08-2015 |
| 20150015072 | Power Converter Circuit and Method - A power converter circuit includes a converter series circuit that includes a number of converter units. The converter series circuit is configured to output a series circuit output current. A synchronization circuit is configured to generate at least one synchronization signal. At least one of the converter units is configured to generate an output current such that at least one of a frequency or a phase of the output current is dependent on the synchronization signal, and includes a converter stage with an inverting buck boost topology. | 01-15-2015 |
| 20150021999 | GRID APPORTIONING BIMODAL POWER MODULE AND METHOD - A system for storage and communication of electrical power generated at local renewable energy generations sites, for subsequent communication to the local power grid is disclosed. Employing electrical energy monitors and storage, locally generated electrical power is always communicated to the local grid within threshold parameters for sale and payment. Using timing components and software, the local generated energy can also be stored and communicated to the grid during determined times of day to yield the highest payment price. | 01-22-2015 |
| 20150022000 | REACTOR AND POWER SUPPLY DEVICE EMPLOYING THE SAME - A reactor includes an annular iron core and four coils separately wound around the iron core. The four coils have first electrodes connected to output terminals of four choppers, respectively, and second electrodes each connected to a load. Therefore, the four choppers can be connected in parallel to the load by one reactor. | 01-22-2015 |
| 20150028676 | VOLTAGE OUTPUT CIRCUIT, ELECTRONIC APPARATUS, MOVING OBJECT, MANUFACTURING METHOD FOR VOLTAGE OUTPUT CIRCUIT, AND MANUFACTURING METHOD FOR ELECTRONIC APPARATUS - A voltage output circuit includes a first power supply terminal, a second power supply terminal, an output terminal, a switch circuit present in a supply path of a voltage from the second power supply terminal to the output terminal and configured to supply the voltage from the second power supply terminal to the output terminal when the switch circuit is in a closed state and interrupt the supply of the voltage from the second power supply terminal to the output terminal when the switch circuit is in an open state, a switch control circuit configured to fix the switch circuit in the open state on the basis of the voltage at the second power supply terminal, and a switch control circuit configured to release the fixing of the open state of the switch circuit on the basis of the voltage at the first power supply terminal. | 01-29-2015 |
| 20150028677 | CONTROL DEVICE, CONVERSION DEVICE, CONTROL METHOD, AND ELECTRICITY DISTRIBUTION SYSTEM - In a control device configured to control power to be supplied to a specific load from at least one of a converter that has a power generator and a storage battery, and a commercial power supply, the control device determines whether the commercial power supply is in a power failure state or a power distribution state, in which: when determining that the commercial power supply is in a power distribution state, the control device causes both of the converter and the commercial power supply to be connected to the specific load; and when determining that the commercial power supply has made a transition from a power distribution state to a power failure state, the control device causes the commercial power supply to be disconnected from the specific load while maintaining the connection between the converter and the specific load. | 01-29-2015 |
| 20150028678 | EDGE RATE CONTROL GATE DRIVER FOR SWITCHING POWER CONVERTERS - This document discusses, among other things, apparatus and methods for an edge rate driver for a power converter switch. In an example, the driver can include an input node configured to receive a pulse width modulated signal, a first switch configured to couple a control node of the power converter switch to a supply voltage during a first state, a second switch configured to couple the control node of the power converter switch to a reference voltage during a second state, and a first current source configured to supply charge current to the first switch when the power converter switch transitions from the second state to the first state, the charge current configured to charge a parasitic capacitance of the power converter switch. | 01-29-2015 |
| 20150035366 | METHOD FOR SYNCHRONIZING A FEED VOLTAGE WITH A NETWORK VOLTAGE - In a method for synchronizing a feed voltage with a network voltage of an electrical energy supply network, a property of the feed voltage can be determined on the basis of a static characteristic curve. The static characteristic curve is compared to the property of the feed voltage of a feed power received by the electrical energy supply network at the applied feed voltage. The property of the feed voltage is adjusted to a specified value when a limit current of the feed power is reached. | 02-05-2015 |
| 20150042165 | POWER MANAGEMENT CIRCUIT - A power management circuit includes a system connector, first and second power connectors, and a control chip. The system connector is used to connect a main server of a server system. The first power connector is used to connect a first power source and the second power connector is used to connect a second power source. The control chip is coupled to the system connector, the first power connector, and the second power connector. The control chip converts signals from the main server into control signals to the first and second power sources. The control chip processes signals from the first and second power sources and outputs the processed signals to the main server. | 02-12-2015 |
| 20150048681 | MULTIPLE-INPUT ISOLATED PUSH-PULL CONNECTED POWER CONVERTERS - A multiple-input power converter transferring energy from multiple input sources to a load. The multiple-input power converter utilizes a push-pull converter that isolates loads from sources by a transformer in the output rectifier stage. The isolation increases the safety of the system and provides a wider range of sources-to-load voltage transfer ratios. Furthermore, the multiple-input power converter utilizes a lower number of components in comparison to previously designed multiple-input power converter topologies as well as has a lower control circuit implementation cost when compared to previously designed soft-switching multiple-input power converters. | 02-19-2015 |
| 20150048682 | DEVICE AND METHOD FOR HARVESTING, COLLECTING OR CAPTURING AND STORING AMBIENT ENERGY - An ambient energy collector for use in AC/DC applications is described. The ambient energy collector has at least one ambient energy collecting antenna system and a master control unit for operational control of the at least one ambient energy collecting antenna system. The ambient energy collector has a DC voltage boosting circuit for increasing an input voltage, a DC primer power source for powering up the voltage boosting circuit via the input voltage, at least one antenna system for collecting ambient energy, an energy collection circuit for converting and amplifying an AC voltage collected by the antenna of the at least one antenna system into a DC voltage, and an output circuit for providing a load with the DC voltage. | 02-19-2015 |
| 20150048683 | CHOPPER-BOOSTED CONVERTER FOR WIND TURBINES - A converter including a converter control for a wind turbine and a chopper, wherein the converter control includes a dynamic limit value which is allowable for a first tolerance time and a static limit value of the converter. Furthermore, an overcurrent module is provided which includes a limit value expander which is designed to increase the static limit value by a portion of the difference from the dynamic limit value as additional current, and a dynamic module which interacts with the limit value expander in such a way that overcurrents between the static limit value which is increased by the additional current and the dynamic limit value are routed in a first stage to the converter and in a second stage at least partially to the chopper, wherein a switch is made to the second stage after a second tolerance time. | 02-19-2015 |
| 20150061391 | ELECTRONIC CONTROL DEVICE - A first output voltage of a constant-voltage power supply is applied as a reference voltage of a multi-channel A-to-D converter and a monitor signal obtained by smoothing the first output voltage by a first power-supply filter is inputted as an input signal voltage. A micro-processor periodically writes digital conversion data of the monitor signal into shift registers to calculate a maximum deviation using a maximum value and a minimum value of the latest predetermined number of data, and determines a power-supply abnormality when the maximum deviation exceeds a predetermined threshold value. | 03-05-2015 |
| 20150061392 | CALIBRATION OF CURRENT SENSORS IN PARALLEL POWER CONVERTERS - An uninterruptible power supply (UPS) system ( | 03-05-2015 |
| 20150061393 | VARIABLE VOLTAGE CIRCUIT - In a variable voltage circuit | 03-05-2015 |
| 20150069840 | Maximum Power Point Tracking for Photovoltaic Power Generation System - A method controls power generated by a photovoltaic array. The method estimates a voltage corresponding to a global maximum power point (MPP) of the power generated by the photovoltaic array to produce an estimated voltage; and tracks an output of the power based on the estimated voltage to determine the global MPP. | 03-12-2015 |
| 20150076910 | MULTI-MODE CURRENT-ALLOCATING DEVICE - A multi-mode current-allocating device serves to control the DC to DC converter in each power supply device of a distributive power supply system. The multi-mode current-allocating device has an active current-sharing control circuit, a current-allocating bypass circuit, and a droop current sharing control circuit to be selectively operated under an active current-sharing mode, a current-allocating mode or a droop current-sharing mode according to the factors of the type of input power of each power supply device, the state of system load, and the system reliability so as to maintain the power supply efficiency of entire power supply system and reduce unnecessary power loss. | 03-19-2015 |
| 20150076911 | DETERMINING A STRING CONFIGURATION IN A MULTISTRING-INVERTER - In operating an inverter including input connectors, (i) to which strings of photovoltaic cells are connected, (ii) each of which is connected via a DC/DC converter to a common DC voltage link, and (iii) which are bridgeable, the partial powers flowing through the individual DC/DC converters are determined, and for some time at least two DC/DC converters are either operated with the aim of balancing the partial currents flowing through them or connected through. During this operation or connecting through, the partial powers flowing through the at least two DC/DC converters are compared with each other, and if a difference between the partial powers exceeds a threshold value, the DC/DC converters are subsequently operated in a way adjusted to the fact that they connect different strings to the DC voltage link. | 03-19-2015 |
| 20150091382 | POWER SUPPLY CIRCUIT AND CONTROL METHOD THEREOF - A power supply circuit according to an embodiment of the invention includes: voltage sources; voltage control circuits that boost an input voltage; and a voltage source connection switch that connects at least one of the voltage sources to one of the voltage control circuits. For example, the voltage source connection switch connects, to the voltage control circuit, a voltage source having a voltage lower than a predetermined reference voltage among the voltage sources, and connects, to the voltage control circuit, a voltage source having a voltage equal to or higher than the determined reference voltage among the voltage sources. | 04-02-2015 |
| 20150097435 | Apparatus For Bi-Directional Power Switching In Low Voltage Vehicle Power Distribution Systems - A plurality of modules each including at least a pair of series connected power MOSFETs are configured between a plurality of DC voltage sources, and a plurality output terminals for connection to respective loads, are controlled for selectively applying power to the loads via time delay switching incorporating forward biased intrinsic diodes of the MOSFETs in a given current path during initial application of power to a load, whereby a predetermined period of time after turning on one of the series connected MOSFETs, the associated other MOSFET is turned on to shunt its intrinsic diode for reducing the resistance in the current path to maximize current flow. The configuration of the plurality of power MOSFETs is also controlled for selectively providing bi-directional current flow between said plurality of DC voltage sources. | 04-09-2015 |
| 20150102674 | RENEWABLE ENERGY SITE REACTIVE POWER CONTROL - Methods, systems, controller devices, and computer program products for reactive power control at a renewable energy site are provided. Embodiments address dynamic performance problems associated with control loop delay and the changing modes of operation for meeting utility voltage and reactive power constraints. Provided is a method for reactive power control involving: (a) determining a site-wide reactive power command comprised by a sum of a reactive power feedforward or compensation term and an integrator term; and (b) distributing the site-wide reactive power command among inverters. Embodiments can include a reactive power control term based on the sum of a single integrator and feed-forward compensation term, an integrator anti-windup mechanism based on the status of individual inverters, a means for decreasing detrimental effects of loop delay during reactive power reference changes, and/or a means of implementing voltage and power factor limits with smooth transfer between reactive power operating regions. | 04-16-2015 |
| 20150102675 | Power Receiver for Extracting Power from Electric Field Energy in the Earth - A resonant transformer connected between a ground terminal and elevated terminal draws current from the earth's electric field through a primary winding of the transformer. An impulse generator applies a high voltage impulse to the primary winding of the resonant transformer to cause current to flow from the ground terminal through the primary winding. The flow of current through the primary winding of the resonant transformer induces a current in the secondary winding, which may be converted and filtered to a usable form, e.g. 60 Hz AC or DC. | 04-16-2015 |
| 20150102676 | Method and Apparatus for Extracting and Conveying Electrical Energy From the Earth's Ionosphere Cavity - The system and apparatus of one or more embodiments of the present invention extracts, conditions, and conveys electric power from the earth ionosphere cavity through the integrated and collaborative operation of the system and apparatus consisting of a capacitively-coupled insulated elevated terminal (coupled capacitor upper plate), an evacuated spark gap, an integrated step-down transformer and resonant capacitor, and a ground terminal (coupled capacitor lower plate). The architecture governing exemplary embodiments of the system and apparatus of the present invention emulates the natural architecture governing the interaction of living trees with the electrical energy resident in the earth ionosphere cavity. The implementation of such exemplary embodiments of the present invention utilizes standard and customized components appropriate for their function within the system and apparatus. | 04-16-2015 |
| 20150108842 | SYSTEMS AND METHODS FOR REDUCING CROSS-SUPPLY CURRENT - Techniques for reducing cross-supply current are described herein. In one embodiment, a power circuit comprises a bypass switch coupled between a first power supply and an internal power supply, and a voltage regulator coupled between a second power supply and the internal power supply. The power circuit also comprises a shut-off circuit configured to detect the first power supply powering up before the second power supply during a power-up sequence, to shut off the bypass switch upon detecting the first power supply powering up before the second power supply, to detect the second power supply powering up during the power-up sequence, and to release control of the bypass switch to a controller upon detecting the second power supply powering up. | 04-23-2015 |
| 20150115717 | MOS-BASED VOLTAGE REFERENCE CIRCUIT - A voltage reference circuit is provided that includes a first circuit, a second circuit and a third circuit. The first circuit has a first MOS transistor pair and the second circuit has a second MOS transistor pair. The first circuit is configured to provide a first voltage component that changes at a first rate having a first slope as a temperature to which the voltage reference circuit is subjected changes. The second circuit is configured to provide a second voltage component that changes at a second rate having a second slope as the temperature changes. The third circuit is configured to use the first voltage component and the second voltage component to generate the reference voltage component that changes at a fifth rate having a fifth slope as the temperature changes. The fifth slope is substantially equal to zero to promote insensitivity of the reference voltage component to temperature changes. | 04-30-2015 |
| 20150123477 | POWER INTEGRATED DEVICE AND POWER CONTROL METHOD THEREOF - The present invention provides a power integrated device including a detection circuit and a determination circuit. The detection circuit detects whether first and second connection ports are coupled to a power source and produce first and second valid signals, respectively, and detect whether the power source coupled to the first and second connection ports meet first or second predetermined power values and produce first and second power spec signals, respectively. The determination circuit produces a system power-control signal according to the first valid signal, the second valid signal, the first power spec signal and the second power spec signal to turn on or turn off the power integrated device. | 05-07-2015 |
| 20150137602 | POWER MANAGEMENT UNIT AND ITS APPLICATION IN APPARATUS AND METHOD FOR WIRELESS POWER SUPPLYING UNIT - A power management unit, adapted to a wireless power supplying unit, for switching between input powers and providing a rated voltage or a variable flow current is provided. The power management unit includes a rectifying unit, a regulating unit, and a control unit. The rectifying unit converts AC power into DC power. The regulating unit is connected to the rectifying unit and generates a stable rated voltage or a variable flow current. The control unit is connected to the regulating unit and controls the input power driving the regulating unit. In addition, an apparatus and a method for a wireless power supplying unit are provided. | 05-21-2015 |
| 20150137603 | Apparatus For Bi-Directional Power Switching In Low Voltage Vehicle Power Distribution Systems - A plurality of modules each including at least a pair of series connected power MOSFETs are configured between a plurality of DC voltage sources, and a plurality output terminals for connection to respective loads, are controlled for selectively applying power to the loads via time delay switching incorporating forward biased intrinsic diodes of the MOSFETs in a given current path during initial application of power to a load, whereby a predetermined period of time after turning on one of the series connected MOSFETs, the associated other MOSFET is turned on to shunt its intrinsic diode for reducing the resistance in the current path to maximize current flow. The configuration of the plurality of power MOSFETs is also controlled for selectively providing bi-directional current flow between said plurality of DC voltage sources. | 05-21-2015 |
| 20150145336 | MODULAR POWER CONVERSION SYSTEM AND METHOD - A method for converting electrical power includes providing a modular power converter having a mode control module and a plurality of autonomously operating power conversion modules operatively connected to a first power bus; selecting, by the mode control module, individual modes of operation for the plurality of power conversion modules to meet a power conversion requirement; receiving electrical power of a first power type from the first power bus by at least one of the power conversion modules; and converting the received electrical power into electrical power of a second power type by the at least one power conversion module. | 05-28-2015 |
| 20150145337 | POWER SHARING DEVICE AND METHOD THEREOF - A power sharing device and method thereof are disclosed herein. The power sharing device includes a control unit, multiple regulators and multiple feedback circuits. Each regulator includes a first input terminal, a second input terminal and an output terminal. The control unit generates multiple pulse-width modulation signals. The first input terminal receives one of multiple input voltages. The second input terminal receives one of the pulse width modulation signals. The output terminal selectively outputs an output power. Each feedback circuit is coupled between the second input terminal and the output terminal of one of the regulators. The output terminals of the regulators are coupled to a load, and the regulators selectively output the output power one at a time and in rotation according to the input voltages and duty cycles of the pulse-width modulation signals. | 05-28-2015 |
| 20150295512 | METHOD FOR FEEDING ENERGY FROM PHOTOVOLTAIC MODULES OF A PHOTOVOLTAIC SYSTEM AND INVERTER DESIGNED FOR EXECUTING THIS METHOD - A method for feeding energy from photovoltaic modules ( | 10-15-2015 |
| 20150311706 | POWER SUPPLY DEVICE, AND CONTROL METHOD OF POWER SUPPLY DEVICE - A power supply device according to an embodiment comprises a plurality of power sources | 10-29-2015 |
| 20150318694 | METHOD OF FORMING A BUS COUPLER AND STRUCTURE THEREFOR - In one embodiment, a bus coupled includes a voltage control circuit configured to selectively conduct a current from the first current source away from an output of the coupler to regulate a voltage drop across the another current source to a first value. An embodiment of a method of forming a bus coupler may include configuring a circuit to store energy from the input into a first storage element in response to receiving an active portion of an input signal, and to transfer energy from the storage element to the output after termination of the active portion of the input signal. | 11-05-2015 |
| 20150326021 | Modular static converters with parallel or series architecture and decentralized modular control (DMC) - A static converter with parallel architecture or series architecture comprises a plurality of switching cells, arranged in parallel or in series, and controlled in a decentralized manner by associated control modules, strung together according to a loop by a series of communication links. | 11-12-2015 |
| 20150333571 | SMART METER, SUPPLY CONTROL METHOD, OPERATING METHOD, INTEGRATED CIRCUIT, SYSTEM, AND PROGRAM - A smart meter includes: a power supply control unit which causes stoppage of a supply of power passing through the smart meter to an television and so on, when an RD command to stop the supply is received; a first communication unit which performs a first communication through which the RD command is received; a second communication unit which performs a second communication; and a communication control unit which: causes the performance of the first communication before the RD command is received; and prohibit the performance of the first communication and cause only the performance of the second communication, after the RD command is received. | 11-19-2015 |
| 20150349528 | WIND POWER BUNDLING CONTROL METHOD AFTER WIND POWER AND THERMAL POWER ARE CONNECTED TO GRID - The present invention has disclosed a wind power bundling control method after wind power and thermal power are connected to a power grid in the field of electric power system security technology, including regulating wind power output and thermal power output forward or backward; calculating the transient stability margin of the grid, load level index of element and voltage out-of-limit index of busbar after regulating wind power output and thermal power output respectively; calculating wind power/thermal power paying value according to the transient stability margin of the grid, load level index of element and voltage out-of-limit index of busbar after regulating wind power output and thermal power output; if wind power/thermal power paying value is larger than set threshold value, regulating wind power output and thermal power output backward/forward; if wind power/thermal power paying value is smaller than set threshold value, regulating wind power output and thermal power output forward/backward. The present invention provides a wind power bundling control method after wind power and thermal power are connected to the power grid to ensure reasonable output of wind power and thermal power, so as to guarantee the power grid operates normally. | 12-03-2015 |
| 20150349567 | MULTIPLE LOCATION LOAD CONTROL SYSTEM - A multiple location load control system comprises a main device and remote devices, which do not require neutral connections, but allow for visual and audible feedback at the main device and the remote devices. The main device and the remote devices are adapted to be coupled together via an accessory wiring. The main device can be wired on the line side and the load side of the load control system. The main device is configured to enable a charging path to allow the remote devices to charge power supplies through the accessory wiring during a first time period of a half-cycle of the AC power source. The main device and the remote devices are configured to communicate with each other via the accessory wiring during a second time period of the half-cycle, for example, by actively pulling-up and actively pulling-down the accessory wiring to communicate using tri-state logic. | 12-03-2015 |
| 20150355666 | POWER NETWORK SYSTEM OPERATION METHOD - The purpose of the invention is to provide a guideline for, when adding a new power cell to a power network, solving the problem of how to set an operation mode of a power conversion leg. Assuming that a power conversion leg (JRL) of the power router (JR) of a power cell (J) and a power conversion leg (KRL) of the power router (KR) of a power cell (K) are connected to each other and power is transferred from the power cell (J) to the power cell (K) when the utility grid breaks down, the leg operation modes of the leg (JRL) of the power router (JR) and leg (KRL) of the power router (KR) are set as follows: | 12-10-2015 |
| 20150355667 | POWER NETWORK SYSTEM, POWER IDENTIFICATION METHOD, AND POWER ROUTER - In a power network system ( | 12-10-2015 |
| 20150357818 | OPTIMAL CONTROL METHOD FOR REACTIVE VOLTAGE OF WIND POWER AND PHOTOVOLTAIC POWER CENTRALIZED GRID CONNECTION - The present invention has disclosed an optimal control method for reactive voltage of wind power and photovoltaic power centralized grid connection in the field of wind power and photovoltaic power grid connection control technology, comprising: setting actuating stations used to control single wind power plant/photovoltaic power plant, setting substations used to control actuating stations and set master station used to control all the substations; master station calculates setting voltage reference U | 12-10-2015 |
| 20150357820 | COMBINED POWER GENERATION SYSTEM HAVING POWER CONVERTING APPARATUS - A first internal phase difference angle calculator for integrating a deviation between a first frequency command value and a frequency obtained by frequency obtaining device to calculate a first internal phase difference angle, a first internal electromotive voltage command value calculator for proportioning and calculating a deviation between a first reactive power command value and a reactive power obtained based on the value measured by first measuring device, and adding a reference voltage to the deviation so as to calculate a first internal electromotive voltage command value, and a first current command value calculator for calculating a command value of an output current from a first power converter based on the first internal phase difference angle, the first internal electromotive voltage command value, and a voltage measured by the voltage measuring device. The apparatus controls the first power converter based on an output from the first current command value calculator. | 12-10-2015 |
| 20150357933 | METHOD FOR DESIGNING CASCADED MULTI-LEVEL INVERTER WITH MINIMIZED LARGE-SCALE VOLTAGE DISTORTION - A method for designing cascaded multi-level inverters with minimization of large-scale voltage distortion, based on KKT (Karush-Kuhn-Tucker) conditions and with simplified computation of conduction angles, simplifies the computation process, and is conducive to on-line calculation. Meanwhile, its fundamental voltage is adaptive, minimization of total harmonic is realized for cascaded multi-level inverters at high-voltage, and voltage power quality at grid connected nodes is improved. | 12-10-2015 |
| 20150364982 | Converter System Using Efficient Map And Method Of Controlling Same - Provided is a converter system including: a plurality of converter modules connected to one power source in parallel; and a controller for storing mapping information of first parameters corresponding to processing power of the converter modules and second parameters corresponding to the number of converter modules that optimally process the processing power among the converter modules, configuring a value of the first parameter according to a measurement value of power input into the converter modules or power output from the converter modules, calculating a value of the second parameter by substituting the value of the first parameter into the mapping information, selecting the number of converter modules corresponding to the value of the second parameters as active converter modules from the converter modules and processing the processing power by using the active converter modules, and controlling output power of the active converter module to gradually increase or decrease in a transient state where the value of the second parameter is changed. | 12-17-2015 |
| 20150372490 | Method of Controlling a Solar Power Plant, A Power Conversion System, a DC/AC Inverter and a Solar Power Plant - A solar power plant including a power conversion system and a method of controlling the power conversion system. Implemented in a DC/AC inverter, the plant includes photovoltaic modules (PV modules) arranged in arrays connected to a respective DC/DC converters. A power collecting grid interfaces between the DC/DC converters and the DC/AC inverter. The method includes monitoring the performance of each PV array by adjusting the voltage level of each interface between a PV array and the corresponding DC/DC converter, and includes monitoring the output power of each DC/DC converter as a feedback for the regulating. | 12-24-2015 |
| 20150372491 | SYNCHRONOUS CONDENSER - A method of controlling reactive power in a power generation system that includes a grid and a cross compound turbine generator system having a first turbine arranged to drive a first generator and a second turbine arranged to drive a second generator includes replacing the first turbine with a motor, the motor coupled to the first generator and operable to drive the first generator. The method also includes decoupling the second turbine and the second generator to allow the second generator to rotate separate from the second turbine, connecting an electrical output of the first generator to the second generator, and powering the motor to drive the first generator and to synchronize the first generator to the grid. The method further includes providing electrical power to the second generator from the first generator to power the second generator and synchronize the second generator to the grid and varying an excitation voltage for one of the first generator and the second generator to vary the reactive power output of the first generator and the second generator. | 12-24-2015 |
| 20150380929 | POWER SUPPLY SYSTEM - A power supply system includes a load, a power line, first and second DC power supplies, a power converter, and a controller for controlling the power converter. Upon selection of an operation mode in which the first and second DC power supplies are parallelly connected to the power line for providing the power line with an output from the first DC power supply after DC voltage conversion in the power converter and with an output from the second DC power supply without DC voltage conversion, the controller sets the maximum value of the total power output from the first and second DC power supplies to the power line at the sum of actual power of the first DC power supply and a charge limiting value for the second DC power supply. | 12-31-2015 |
| 20150380942 | METHOD FOR BLACK START OF A POWER STATION COMPRISING A PLURALITY OF INVERTERS CONNECTABLE TO AN AC ELECTRICAL GRID - In a method for black start of a power station including a plurality of inventers connectable to a local AC electrical grid, a first AC voltage is built up in the AC electrical grid by a first inverter, said first AC voltage being reduced in comparison with a rated voltage of the AC electrical grid by at least a quarter, and at least one second inverter is connected to the AC electrical grid after synchronization with the first AC voltage. After connection of the second converter, a second AC voltage, which is higher than the first AC voltage, is built up in the AC electrical grid. | 12-31-2015 |
| 20160006244 | METHOD FOR CONTROLLING THE ELECTRICAL POWER DELIVERED OVER AN ELECTRICAL SUPPLY NETWORK BY AT LEAST TWO ELECTRICAL ENERGY SOURCES AND ASSOCIATED ELECTRICAL SYSTEM - In this control method for controlling the electrical power delivered over an electrical supply network ( | 01-07-2016 |
| 20160006251 | METHOD FOR DC-AC CONVERSION - A method of controlling a plurality of DC/AC converters in cascade configuration, each being arranged to receive an input direct current and voltage from a respective photovoltaic panel and to deliver an electric output. The method includes receiving information representing at least one of frequency, phase, amplitude and harmonics of a required AC, and receiving information on the input direct current and voltage to each one of the plurality of DC/AC converters. Based on the received information, each one of the plurality of DC/AC converters is individually controlled in such manner that the combined output from the plurality of DC/AC converters produces an AC matching the required AC. | 01-07-2016 |
| 20160006294 | METHOD FOR DYNAMICALLY CONTROLLING A PIECE OF ELECTRICAL EQUIPMENT - The present invention concerns a method for dynamically controlling powering a piece of electrical equipment powered by an energy storage element and a renewable energy source, the power of the power supply of said equipment being temporally variable according to an adjustable reference time curve characterised in that it comprises steps of adjustment on the basis of at least one external factor and at least one internal factor, and the constraint according to which the integral over the relevant operating cycle of said adjusted curve is lower than the quantity of energy that can be allocated from said energy storage element, during the relevant operating cycle, said external factors being physical parameters acquired by local sensors. The invention also concerns a lighting system implementing this method, an array of such electrical systems and a method for detecting one or a plurality of malfunctions of such a lighting system. | 01-07-2016 |
| 20160020613 | Method and Device for Operating Power System, and Rechargeable-Battery Management Device - The purpose of the present invention is to provide a method and device for operating a power system, and a rechargeable-battery management device, that extract maximum performance from rechargeable batteries and use said batteries evenly while taking into consideration cost and the operation of the batteries. In order to solve said problem, in this method for operating a power system provided with a plurality of rechargeable-battery devices and a plurality of electric generators, the amount of power that a rechargeable battery available during a scheduled time period on a scheduled date will be able to supply is determined, an economic-dispatch calculation including the determined amount of power that the aforementioned rechargeable battery will be able to supply is performed for the power system, and said rechargeable battery is used to supply power during the scheduled time period on the scheduled date. | 01-21-2016 |
| 20160028232 | POWER CONVERSION DEVICE - A power conversion device includes an AC power source configured to output an AC voltage, a DC power source configured to output a plurality of DC voltages having different levels, an inverter configured to receive the AC voltage and the plurality of DC voltages and output an output voltage by boosting the AC voltage in a booster mode in accordance with first and second control signals, the booster mode being a mode in which a level of the AC voltage is smaller than a predetermined value, a reactor configured to smooth the output voltage of the inverter, and a control circuit configured to generate the first and second control signals using a first and second carrier signals having different frequencies, respectively, in the booster mode, and selectively output the first or second control signal in accordance with the level of the AC voltage from the AC power source. | 01-28-2016 |
| 20160036221 | DC CONNECTION SYSTEM FOR RENEWABLE POWER GENERATORS - A DC connection system for renewable power generators includes a first monopole DC collection network, a second monopole DC collection network and a first bipole transmission system. The first monopole DC collection network aggregates positive-valued DC voltage outputs of a first cluster of renewable power generators onto a positive terminal of the first monopole DC collection network. The second monopole DC collection network aggregates negative-valued DC voltage outputs of a second cluster of renewable power generators onto a negative terminal of the second monopole DC collection network. The first bipole transmission system is coupled to the positive and negative terminals of the monopole DC collection networks, for transferring the aggregated power to a power grid substation. | 02-04-2016 |
| 20160036228 | System and Method for Managing AC Power Using Auxiliary DC-to-AC Inversion - A system and method are provided for managing demand for a client with a fluctuating AC power grid demand, using DC-to-AC power inversion as an auxiliary source of power. The inverter has a selectable inversion power output levels connected to the AC client to supply auxiliary power for a portion of the AC power demand. The AC grid demand is averaged. In each of a series of periodic time intervals, a current AC grid demand average in a current time interval is compared to a demand goal, which is the highest AC grid demand average, as measured at an end of a time interval, and selected from a plurality of time intervals. The inverter output power level is selected so that the current AC grid demand average is less than or equal to the demand goal by the end of the current time interval. | 02-04-2016 |
| 20160036234 | PHOTOVOLTAIC SYSTEMS AND RELATED TECHNIQUES - Photovoltaic systems and related techniques are provided. A method for commissioning a photovoltaic (PV) system may include obtaining data describing an arrangement of two or more components of the PV system; performing a test of the PV system, wherein performing the test includes determining whether the PV system complies with at least one PV system criterion based, at least in part, on at least a portion of the data describing the arrangement of the two or more components of the PV system; and in response to determining that the PV system complies with the at least one PV system criterion, activating the PV system and/or notifying a user of the PV system that the PV system complies with the at least one PV system criterion. The method may further include sending information associated with the PV system to a regulatory entity and/or an operator of an electrical grid. | 02-04-2016 |
| 20160049792 | MULTI-FARM WIND POWER GENERATION SYSTEM - A multi-farm wind power dispatch management system is provided which includes wind turbine dispatch controllers for controlling wind power dispatch of respective wind farm components and wind farm dispatch management systems for receiving respective wind farm component operating parameters and generating respective farm-level operating parameters. The system also includes group dispatch management systems for receiving the farm-level operating parameters and generating respective group level operating parameters. The system also includes a master dispatch management system for receiving the group-level operating parameters; computing a real time output power generated by the wind farm components; determining a difference between the real time output power and a committed output power; and generating reference commands, based on the difference, for controlling at least one of, the wind farm component operating parameters, the farm-level operating parameters, the group level operating parameters, or combinations thereof to reduce the difference and dispatch the committed output power. | 02-18-2016 |
| 20160056632 | POWER SUPPLY APPARATUS WITH CONTROLLABLE MULTIPLE INPUT RECTIFICATION - A power supply apparatus for providing electrical power to a power consuming device or a power conversion device from at least one of a first AC power source and a second AC power source. The power supply apparatus comprises controllable rectifier devices associated with each of the first and second AC power sources. The controllable rectifier devices are controllable to simultaneously rectify and control the power provided by the first and second AC power sources. | 02-25-2016 |
| 20160064937 | METHOD AND APPARATUS FOR DETECTION OF LOCAL LINE PHASE IN A MULTI-PHASE POWER LINE SYSTEM - Apparatus and system for determining a phase connection for a power conditioning unit (PCU). In one embodiment, the comprises determining, by a controller coupled to a multi-phase AC line, a reference phase stamp; determining, by the PCU, a local phase stamp, wherein the PCU is coupled to a subset of phase lines in the multi-phase AC line; determining a difference between the reference phase stamp and the local phase stamp; comparing the difference to one or more of a first range of values or at least a second range of values; and determining the phase connection for the PCU based on whether the difference is within the first range or the at least a second range. | 03-03-2016 |
| 20160065057 | FUEL CELL DC-DC CONVERTER - A method and system for supplying power to a portable electronic device includes supplying current from one or more fuel cells to a DC-DC converter and regulating a current limit of the DC-DC converter as a function of a measured temperature of at least one of the power supply system and the portable electronic device. The current limit can vary as an inverse function of the measured temperature. The current limit can be an input current limit of the DC-DC converter or an output current limit of the DC-DC converter. Current produced by the one or more fuel cells can decrease proportionally to a decrease of the current limit of the DC-DC converter, reducing the heat produced by the one or more fuel cells and thereby reducing the measured temperature. A temperature sensor can be located on or near the one or more fuel cells. A temperature sensor can be located on an internal housing of the portable electronic device. | 03-03-2016 |
| 20160066911 | SMART CARTRIDGE WAKE UP OPERATION AND DATA RETENTION - An electronic system for a surgical instrument is disclosed. The electronic system comprises a main power supply circuit configured to supply electrical power to a primary circuit. A supplementary power supply circuit configured to supply electrical power to a secondary circuit. A short circuit protection circuit coupled between the main power supply circuit and the supplementary power supply circuit. The supplementary power supply circuit is configured to isolate itself from the main power supply circuit when the supplementary power supply circuit detects a short circuit condition at the secondary circuit. The supplementary power supply circuit is configured to rejoin the main power supply circuit and supply power to the secondary circuit, when the short circuit condition is remedied. | 03-10-2016 |
| 20160079751 | POWER SUPPLY SYSTEM - A power supply system comprises a first battery, a second battery, an output electric circuit, a first switching element, a second switching element, and a third switching element. The output electric circuit includes a first electric circuit and a second electric circuit. The second electric circuit has a potential lower than a potential of the first electric circuit. The first, second and third switching elements are provided in series with each other from the first electric circuit toward the second electric circuit. The first battery is provided in parallel with the second switching element. The second battery is provided in parallel with a series connection between the second switching element and the third switching element. | 03-17-2016 |
| 20160079755 | METHOD AND DEVICE FOR REGULATING THE CHARGE STATE OF A BATTERY POWER PLANT - In a method for controlling the state of charge (SOC) of a battery power plant ( | 03-17-2016 |
| 20160087425 | MITIGATION OF ARC FLASH HAZARD IN PHOTOVOLTAIC POWER PLANTS - Arc flash mitigation devices are employed to protect personnel during maintenance of photovoltaic inverters. During normal operation, an alternating current (AC) output of a photovoltaic inverter is coupled to a low voltage winding of a step up transformer through a bus-bar (e.g., an electrically conductive interconnect), which has higher current rating than a fuse. During maintenance, the bus-bar is replaced with the fuse. The fuse may be employed in conjunction with a switch. The switch may be a disconnect switch that places the bus-bar in parallel with the fuse during normal operation, and decouples the bus-bar from the fuse during maintenance. The switch may also be a transfer switch that places either the bus-bar or the fuse in series with the AC output of the photovoltaic inverter and the low voltage winding of the step up transformer. | 03-24-2016 |
| 20160087445 | METHOD FOR FEEDING ELECTRICAL POWER INTO AN ELECTRICAL SUPPLY NETWORK - The invention relates to a method for feeding electrical power of at least one wind turbine or of a wind farm into an electrical supply network having a network voltage and a network frequency, wherein the method is prepared for feeding in active electrical power and reactive electrical power and the fed-in active power can be adjusted on the basis of at least one network state by means of an active-power controller and/or the fed-in reactive power can be adjusted on the basis of at least one network state by means of a reactive-power controller and the active-power controller and/or the reactive-power controller can be changed according to type and/or parameterisation. | 03-24-2016 |
| 20160094181 | METHOD AND SYSTEM FOR CONNECTING SOLAR CELLS OR SLICES IN A PANEL SYSTEM - A method and system include a plurality of solar cells and a plurality of voltage controllers. Each of the plurality of solar cells is directly coupled to a dedicated one of the plurality of voltage controllers to form unique pairs of solar cells and voltage controllers. Each of a plurality of panels contain a plurality of unique pairs. | 03-31-2016 |
| 20160098051 | SCALABLE VARIABLE ENERGY POWER SOURCE - A scalable power source that includes a controller that is electrically connected to an engine component that generates electrical power and includes a modular connector that electrically connects the controller to plural auxiliary power sources or plural types of auxiliary power sources to provide a selected power output. | 04-07-2016 |
| 20160099572 | SYSTEM FOR OPERATION OF PHOTOVOLTAIC POWER PLANT AND DC POWER COLLECTION WITHIN - A system is disclosed for extracting a medium DC voltage from a plurality of PV modules arranged in an array and supplying the medium DC voltage to inverters located outside the array near a point of interconnection with a utility grid. | 04-07-2016 |
| 20160099573 | CIRCUIT ARRANGEMENT FOR INLINE VOLTAGE SUPPLY, USE OF SUCH A CIRCUIT ARRANGEMENT AND DEVICE HAVING SUCH A CIRCUIT ARRANGEMENT - In a circuit arrangement for in-line supply of voltage to an electrical or electronic apparatus located in the region of a DC line, a parallel circuit of two diodes oriented in anti-parallel is arranged in the line. When a direct current is flowing between terminals of the circuit arrangement, the anti-parallel diodes permit a small voltage drop between the terminals, irrespective of the direction of flow of the current, which voltage drop is limited to the forward voltage of the diode that is currently forward biased. The voltage drop across the anti-parallel diodes is tapped by a supply subcircuit. A semiconductor switch can be connected in parallel with the anti-parallel diodes, which switch is controlled by a voltage-reduction subcircuit to minimize the power dissipation of the circuit arrangement. | 04-07-2016 |
| 20160105126 | ELECTRIC POWER CONVERSION SYSTEM - An electric power conversion system includes: a first battery; a second battery; an electric power converter including a plurality of switching elements, and configured to bidirectionally step up or step down electric power between an output line and each the first and second batteries in accordance with PWM signals; and a controller configured to control first and second step-up and step-down circuits by generating first and second PWM signals. The first and second step-up and step-down circuits are established between each first and second batteries and the output line. The first and second PWM signals are signals for controlling step-up and step-down operation of each first and second step-up and step-down circuit. The controller is configured to, when coupling on-duty periods of both the first and second PWM signals with each other, execute an overlap phase shift that partially overlaps the on-duty periods of the first and second PWM signals. | 04-14-2016 |
| 20160111881 | POWER SUPPLY SYSTEM - A power supply system includes: a first battery; a second battery; a voltage converter including a plurality of switching elements; and a controller configured to turn on or off the plurality of switching elements in accordance with pulse width modulation control. The controller is configured to control phases of the pulse width modulation control signals such that the first high-level period of the first pulse width modulation control signal and the second high-level period of the second pulse width modulation control signal do not overlap with each other at a predetermined condition. | 04-21-2016 |
| 20160111971 | MULTI-MODE ENERGY ROUTER - In accordance with presently disclosed embodiments, a multi-mode energy router (MMER) is provided. The MMER includes a functional block of power electronics under processor control. In addition, the MMER includes a plurality of switches that can be controlled to route power from specific sources or loads to the input or output of the functional block. The MMER enables a single functional block of power electronics to selectively provide bi-directional power conversion between AC and DC components and between DC and DC components. | 04-21-2016 |
| 20160118789 | PARALLEL BATTERY SYSTEM - Apparatus for power conversion. In one embodiment, the apparatus comprises a battery unit, coupled to a power line, comprising (a) a plurality of power cells, wherein each power cell of the plurality of power cells comprises a battery cell coupled to a pico-converter, wherein the pico-converter is a bidirectional power converter; and (b) a master controller, coupled to each power cell of the plurality of power cells, for dynamically and individually controlling both an operating state and a power conversion direction for each power cell in the plurality of power cells to generate a predetermined power output from the battery unit. | 04-28-2016 |
| 20160134117 | System for Providing a Primary Control Power for a Power Grid - A system for providing a primary control power (PCP) for a power grid (PG) by at least one energy storage device (ESD) comprising an energy resource controller (ERC) connected to said energy storage device (ESD), wherein said energy resource controller (ERC) has a state of charge control unit (SOC-CU) adapted to perform a state of charge (SOC) power control of the energy storage device (ESD) to avoid inadmissible state of charge states of the energy storage device (ESD) caused by a stochastic demand for primary control power (PCP) by said power grid (PG). | 05-12-2016 |
| 20160134121 | METHOD FOR FEEDING ELECTRIC POWER INTO AN ELECTRIC SUPPLY NETWORK - A method for feeding electric power into an electric supply network by means of a wind park comprising several wind turbines. The method comprises the steps of
| 05-12-2016 |
| 20160134148 | ELECTRIC POWER CONVERTER - An electric power conversion unit of an electric power converter establishes two converter circuits including four switching elements and two batteries and carries out electric power conversion in a parallel mode in which the batteries are connected in parallel with each other. A controller is configured to set a control signal for each of the switching elements, identify a target switching element of which a temperature is suppressed, determine a state having a maximum loss value in correspondence with input-output data, and execute phase control for suppressing the maximum loss value. | 05-12-2016 |
| 20160141872 | POWER SUPPLY - A power supply and a method for operating the power supply in which a transformer connected to an excitation circuit . . . is adapted to be connected to a power source, which secondary winding is connected to at least one first power supply. From prior art. switch mode power supply based on fly back technology is well known. Here a power supply with a power inlet is provided with a plurality of separated power outlets. One of the lines connected to the primary winding is further connected to a discharge control circuit, which discharge control circuit is further connected to at least one second power supply and the primary winding is further connected to a discharge circuit where at least one further power supply is connected. | 05-19-2016 |
| 20160149479 | DEVICES AND METHODS OF CANCELLING THE SWITCHING NOISE FROM POWER MANAGEMENT INTEGRATED CIRCUITS - A power management device includes a first power unit, a second power unit, and a control unit. The first power unit receives a first control signal of a first phase to generate a first current of the first phase flowing to an output node. The second power unit receives a second control signal of a second phase to generate a second current of the second phase flowing to the output node. A phase delay is the difference between the first phase and the second phase. The control unit receives a clock signal in a clock frequency to generate the first control signal and the second control signal. The control unit controls the phase delay to cancel a corresponding harmonic of the clock frequency at the output node. | 05-26-2016 |
| 20160149496 | GROUND LEAKAGE POWER SUPPLY FOR DIMMING APPLICATIONS - A dimmer is provided for controlling power to a load, the dimmer having a ground leakage power supply deriving power from a connection of the dimmer to ground. The power supply may be a switching-mode power supply that can be the sole or primary power supply to power operation of the dimmer, including operation of the controller. | 05-26-2016 |
| 20160156219 | ACCESS CONTROL SYSTEM USING A WEARABLE ACCESS SENSORY IMPLEMENTING AN ENERGY HARVESTING TECHNIQUE | 06-02-2016 |
| 20160164282 | ELECTRICITY STORAGE DEVICE, ELECTRICITY STORAGE SYSTEM, AND METHOD FOR CONTROLLING ELECTRICITY STORAGE DEVICE - A first power source line disposed between a positive electrode side of an electricity storage unit and a first external terminal, a second power source line disposed between a negative electrode side of the electricity storage unit and a second external terminal, a power source circuit connected to both the first and second power source lines and configured to supply an output voltage to a control circuit in an operating state, a power source control circuit configured to control an operating state and a non-operating state of the power source circuit, a first control signal generation circuit configured to supply a first control signal corresponding to transition of an external voltage applied to the first external terminal and the second external terminal to the power source control circuit to set the power source circuit in an operating state for a prescribed time, and a second control signal generation circuit configured to generate a second control signal that allows the power source circuit to be set in an operating state continuously by the control circuit to which an output voltage of the power source circuit is supplied are included. | 06-09-2016 |
| 20160172853 | METHOD AND APPARATUS FOR TRANSMITTING ELECTRICAL POWER | 06-16-2016 |
| 20160172860 | POWER CONVERTER COMMUNICATIONS | 06-16-2016 |
| 20160181810 | METHOD AND FEED CONTROL FOR THE FEEDING OF ELECTRICAL CURRENT INTO A LINE BRANCH | 06-23-2016 |
| 20160181817 | POWER-SOURCE MULTIPLEXING SYSTEM AND POWER-SUPPLIED UNIT | 06-23-2016 |
| 20160190870 | POWER TRANSMITTING APPARATUS, POWER RECEIVING APPARATUS, CONTROL METHODS THEREFOR, PROGRAM, AND COMPUTER-READABLE STORAGE MEDIUM - A power transmitting apparatus transmits power by a first wireless power transmission method, transmits power by a second wireless power transmission method, detects a wireless power transmission method supported by a power receiving apparatus, and determines whether power is transmitted to a first power receiving apparatus by the first power transmission method or the second power transmission method, based on a detected wireless power transmission method supported by the first power receiving apparatus and a detected wireless power transmission method supported by a second power receiving apparatus. | 06-30-2016 |
| 20160201864 | Solar Power Supply Device and Solar Lighting Equipment | 07-14-2016 |
| 20160254664 | Load Allocation for Multi-Battery Devices | 09-01-2016 |
| 20160380431 | METHOD FOR CONTROLLING A LOAD - A method for controlling a load by providing a total energy consumption and a time window for the total energy consumption of the load from one or more energy sources is described. The method includes determining of energy blocks, wherein the energy blocks are based on a power interval during a time interval, the time intervals are within the time window and the energy blocks are allocated energy-source-dependent costs, sorting of the energy blocks in ascending order according to the level of the costs per energy block and subsequent summation of quantities of energy that the energy blocks contain in ascending order of sorting until the total energy consumption of the load is reached. From this, on and off times of the load are determined by means of the time intervals that belong to the summed energy blocks, wherein the power intervals belonging to the respective energy blocks determine a power consumption of the load at the respective instant, and the load is actuated in accordance with the on and off times. An apparatus for carrying out the method is likewise disclosed. | 12-29-2016 |
| 20160380434 | HIERARCHICAL CONTROL OF A PLURALITY OF POWER SUBSYSTEMS AND METHOD OF OPERATING THE SAME - An apparatus formed with a plurality of power subsystems, and method of operating the same. In one embodiment, the apparatus is formed with plurality of local controllers to control an operating characteristic of at least one of the plurality of power subsystems. A central controller of the apparatus is configured to receive an indication of an overall power produced by the plurality of power subsystems, selectively command a first local controller of the plurality of local controllers to change a value of the operating characteristic of a first power subsystem of the plurality of power subsystems, receive an indication of a change in the overall power in response to the change in the value of the operating characteristic of the first power subsystem, and store, in memory, the change in the value of the operating characteristic of the first power subsystem if the overall power is increased. | 12-29-2016 |
| 20170237261 | COMBINATION WIND/SOLAR DC POWER SYSTEM | 08-17-2017 |
| 20190148962 | ALTERNATING-CURRENT VOLTAGE DETECTION CIRCUIT | 05-16-2019 |
