| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 307048000 | Storage battery or accumulator-type source | 78 |
| 20080203816 | Power supply apparatus - Provided is a technology where a voltage capable of driving a mobile device, to which a power supply apparatus is connected, is automatically detected. The power supply apparatus, for supplying power to the device connected, includes a power supply, a voltage conversion unit which varies a voltage inputted from the power supply to a predetermined voltage and outputs the varied voltage to the device, an ammeter which measures an output current value of the power supply apparatus, and a control unit which controls the voltage varied by the voltage conversion unit. The control unit boosts the voltage outputted from the power supply in stages and detects, by detecting a change in the output current value, that the output voltage of the power supply apparatus boosted by the voltage conversion unit has reached a voltage capable of driving the device. | 08-28-2008 |
| 20080224541 | POWER CONTROL METHOD FOR SECONDARY BATTERIES - There is provided a power control method for secondary batteries constituting, in a grid connection system supplying electric power to a power system by combining a power generator where output power fluctuates with a power storage compensator, the power storage compensator and compensating fluctuation of output power of the power generator. The method includes the steps of: dividing the secondary batteries into a “constant power control” group and a “demand responsive” group, and distributing predetermined constant input-output power out of power to be input and output provided to all the secondary batteries in order to compensate fluctuation of output power of the power generator to the “constant power control group” and the remaining input-output power to the “demand responsive” group to control input-output power of the secondary batteries respectively depending on the belonging groups. | 09-18-2008 |
| 20080231117 | POWER MANAGEMENT TOPOLOGIES - A power supply topology according to one embodiment includes a first path coupled to a controllable DC power source, a second path coupled to a rechargeable battery, and a third path coupled to a system load, the three paths coupled to a common node. The topology may further include a unidirectional switch coupled to the first path and a selectively unidirectional switch coupled to the second path. The topology may further include a power management control circuit including a wake up circuit having a comparison circuit and an output decision circuit. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment. | 09-25-2008 |
| 20090045679 | Integrated Circuit and Method of Operating the Same - An integrated circuit includes a storage component, a voltage stabilizer circuit with an input configured to receive an input voltage and an output configured to provide an output voltage, and a load. The load is coupled to the output of the voltage stabilizer circuit. The integrated circuit is operable in a first and second operating state. In the first operating state, the storage component receives an input voltage and in the second operating state the input voltage is provided to the input of the voltage stabilizer circuit. | 02-19-2009 |
| 20090079265 | POWER SUPPLY HAVING AN AUXILIARY POWER CELL - A power supply having a plurality of selectively electrically connectable power cells configured to supply power to a load. The power supply comprises a plurality of power cells electrically connected in series and an auxiliary power cell electrically connected in parallel with one of said plurality of power cells. A control is configured to selectively electrically connect said auxiliary cell in parallel with whichever one of said plurality of power cells has a lower power delivery capability. | 03-26-2009 |
| 20090115252 | Power management systems with multiple power sources - An electronic system includes a plurality of primary power sources operable for powering a load and charging a secondary power source, and a power management unit coupled to the plurality of primary power sources and the secondary power source. The power management unit is operable for selectively directing power of each of the primary power sources to the load according to a power requirement of the load. The power management unit is further operable for directing power of the secondary power source to the load if the power requirement of the load exceeds a total power capacity of the plurality of primary power sources. | 05-07-2009 |
| 20090195074 | Power supply and storage device for improving drilling rig operating efficiency - An energy supply and storage system for a rig power supply system is disclosed for a rig power supply system of the type having a power generator coupled to rig loads and motors via a bus. The energy supply and storage device is a power supply in parallel with the rig motors and adapted for receiving energy generated by the generator in excess of demand. The energy storage system is in communication with the power supply for receiving and storing the excess energy, with the power supply being adapted to draw energy from the storage system when the rig motor demand exceeds the capacity of the generator. | 08-06-2009 |
| 20090206667 | HYBRID ELECTRICAL POWER SOURCE COMBINING STIRLING ENGINE DRIVEN ALTERNATOR WITH SUPPLEMENTING ELECTRICAL ENERGY STORAGE - An electrical power source including a free-piston Stirling engine driving an alternator to supply power through a bus to a user load and controlled by an engine/alternator controller. A bidirectional DC/DC converter is connected between a battery and the bus. The stroke of the engine piston is modulated between a maximum and a minimum stroke to maintain the bus voltage at a design nominal bus voltage (V | 08-20-2009 |
| 20090230773 | Scanner with battery - Power is provided to a scanning device. Power supplied by an attached bus is used to power the scanning device when power requirements for the scanning device can be met by the power supplied by the attached bus. Power is drawn from a rechargeable battery to supply power to the scanning device when power requirements for the scanning device cannot be met by the power from the attached bus. When the scanning device is in a stand-by mode, the power from the attached bus is used to recharge the rechargeable battery. | 09-17-2009 |
| 20090236911 | Solar powered DC load system - The solar powered direct current (DC) load system is a reliable, versatile and user friendly system; it uses solar energy and rechargeable battery powering at least one type of DC load which are: a type of water pump and a type of at least one LED; the system comprises a battery discharge control circuit and a battery output circuit for DC load (FIG. | 09-24-2009 |
| 20100045112 | HYBRID ELECTRICAL POWER SOURCE - An embodiment of the present invention includes first and second electrical energy sources configured to supply current to an output, and a controller configured to receive a signal indicative of the current being drawn at the output, to compare the output current with a reference current level, and to regulate the voltage provided by the one of the first or second electrical energy sources such that: when the output current is lower than or equal to the reference current level, the first energy source supplies current equal to the output current; and, when the output current exceeds the reference current level, the first energy source supplies current equal to the reference current level and the second energy source supplies the remaining current required by the load. | 02-25-2010 |
| 20100060080 | Power source device and vehicle with power source device - A power source device includes first and second rechargeable batteries, a load circuit, a first step-up converter converting voltage between a first node to which the first battery is connected and a second node to which the load circuit is connected, a second step-up converter converting voltage between a third node to which the second battery is connected and the second node, and a charge/discharge unit transmitting power received from an external power source. Preferably, the power source device further includes a first system main relay, a second system main relay, and a controller controlling the first and second system main relays and the first and second step-up converters. | 03-11-2010 |
| 20100133908 | USB DEVICE WITH INTERNAL ASSISTING POWER - An universal-serial-bus external device is connected to an universal-serial-bus port of a computer host and the universal-serial-bus port comprises a positive-power end from which a main current is outputted. The external device includes: a load circuit comprising a positive-power end to which a main current is outputted from the positive-power end of the universal-serial-bus port, wherein a load current, for driving the universal-serial-bus external device, is inputted to the positive-power end of the load circuit; and an assisting-power circuit comprising an output end from which an assisting current is outputted to the positive-power end of the load circuit; wherein the load circuit is only provided by the main current if the load current is lower than a first threshold current; and, the load circuit is provided by both the main current and the assisting current if the load current is higher than a second threshold current. | 06-03-2010 |
| 20100148582 | SYSTEMS AND METHODS FOR POWER STORAGE AND MANAGEMENT FROM INTERMITTENT POWER SOURCES - A power management system is disclosed. Embodiments of the power management system may be configured for use with an electric generator that produces AC or DC voltage from an energy source, which may be intermittent or fluctuating. One embodiment of the power management system includes an energy storage reservoir configured to be electrically coupled to the electric generator. The energy storage reservoir includes at least one ultracapacitor and at least one rechargeable battery. The power management system also includes an electronic controller configured to control storage in the reservoir of energy generated by the electric generator and to control power usage from the reservoir and the generator. The electronic controller is configured to control energy storage and power usage in response to one or more control signals. | 06-17-2010 |
| 20100156181 | Electronic power stabilizer - An electronic control system having a boost converter circuit with an input for receiving a first DC voltage from a source of power and an output for delivering a second DC voltage to a load. The boost converter includes a main power transistor and a primary control circuit for providing a first control signal to control the main power transistor. The first control signal from the primary control circuit effects the maximum allowable current flowing in the main power transistor. The system includes a secondary control circuit having a temperature detector that provides a second control signal for overriding the first control signal of the primary control circuit. The temperature detector is mounted in thermal relation to the main power transistor, and the secondary control circuit is capable of reducing the maximum current flowing in the main power transistor based on a third signal received from the temperature detector. | 06-24-2010 |
| 20100187907 | SECONDARY BATTERY CONTROLLING APPARATUS AND CONTROLLING METHOD - To provide a secondary battery controlling apparatus and a controlling method that can keep a storage amount of a secondary battery used for supply and demand control of a power system not close to 100% or 0%. The present invention is a power supply and demand controlling apparatus of a small-scaled power system | 07-29-2010 |
| 20100231046 | Multisource integrated Electricity Generation from Novel Smart Roads and Pavements - An electricity generation system that uses smart pavement is presented, which pavement is comprised of materials that use solar radiation, piezo electricity, and temperature differentials within the road surface itself to create electric power. The pavement is multi-level, modular in construction, and comprised of photo-piezo-thermo-voltaic (PPTV) materials and physical means to capture the motion of passing vehicles as energy. | 09-16-2010 |
| 20100244565 | POWER SUPPLY CONTROLLER - Main arrays (MA | 09-30-2010 |
| 20100253146 | ELECTRIC DRIVE SYSTEM - An electric drive system, in particular for a rail vehicle, includes an electric energy accumulator and an electrochemical energy accumulator, connected in parallel. According to at least one embodiment of the invention, a component, e.g., a diode with a transmission direction facing away from the electrochemical energy accumulator, is situated in a connecting line between the electric energy accumulator and the electrochemical energy accumulator. | 10-07-2010 |
| 20100264736 | POWER SUPPLY CIRCUITS - This invention is generally concerned with power supply circuits, and more particularly, with circuits to supply power to a mains supply, such as domestic grid mains, from a photovoltaic device. A photovoltaic power conditioning circuit for providing power from a photovoltaic device to an alternating current mains power supply line, the circuit comprising: a DC input to receive DC power from said photovoltaic device; an AC output configured for direct connection to said AC mains power supply line; a DC-to-AC converter coupled to said DC input and to said AC output to convert DC power from said photovoltaic device to AC power for output onto said power supply line; and an electronic controller directly coupled to said power supply line to measure a voltage of said power supply line and a current in said supply line and to control said DC-to-AC converter responsive to said measuring. | 10-21-2010 |
| 20100295372 | Methods, devices and systems for transmission between an implanted device and an external device - Embodiments disclosed herein are directed to systems including an internal power transmitter that delivers energy out of a living subject to power at least one external device that is in communication with the internal power transmitter, and related apparatuses, devices, and methods of use. | 11-25-2010 |
| 20100314943 | DUAL COLUMN GANG OUTLETS FOR MINIMIZING INSTALLATION SPACE - A power distribution unit disclosed herein includes a plurality of power outlets arranged in adjacent columns, the first and the second terminals of the power outlets in a first column formed along a first line, the first and the second terminals of the power outlets in a second column formed along a second line, ground terminals of the power outlets in the first column formed along a third line, and ground terminals of the power outlets of the second column formed along a fourth line, wherein the first line, the second line, the third line, and the fourth line are arranged in parallel, and wherein the plurality of power outlets are arranged in one of an arrangement in which the third and fourth lines are positioned between the first and second lines, and an arrangement in which the first and second lines are positioned between the third and fourth lines. | 12-16-2010 |
| 20110043037 | NANOSTRUCTURED HIGH SURFACE AREA ELECTRODES FOR ENERGY STORAGE DEVICES - High surface area electrodes are described here. The electrodes comprise a conductive substrate and a mesh of nanostructures disposed on the conductive substrate. The nanostructures are coated with conductive or semiconducting nanoparticles to form a high surface area electrode. Methods for making high surface area electrodes are also provided. Further, energy storage devices incorporating the high surface area electrodes are described. Related systems incorporating energy storage devices are also disclosed. | 02-24-2011 |
| 20110043038 | ELECTRIC RAILWAY POWER-SUPPLY SYSTEM - To present an electric railway power-supply system not requiring vast area for installation, excellent in rapid charge-discharge characteristic, and low in manufacturing cost. At a substation | 02-24-2011 |
| 20110049991 | UNINTERRUPTIBLE POWER SUPPLY APPARATUS - In an uninterruptible power supply apparatus, a common mode current flowing from nodes (N | 03-03-2011 |
| 20110062783 | Portable Electronic Device - A portable electronic device includes a main body and a power supply module. The main body includes a main circuit, a power input port, and a housing. The housing defines a receiving space at a side surface thereof. The main circuit is disposed in the housing; the power input port is located on a wall surface of the receiving space and is connected to the main circuit. The power supply module includes a shell, a power output port formed on the shell, and a battery, a power modulating circuit and a switch received in the shell. The shell is capable of being detachably received in the receiving space of the housing, and when the shell is received in the receiving space the power output port is connected to the power input port on the wall surface of the receiving space. The power modulating circuit modulates alternating current to direct current suitable for the main circuit. The switch selectively connects the power output port to the battery or the power modulating circuit. | 03-17-2011 |
| 20110163601 | POWER CONTROL SYSTEM AND METHOD FOR CHARGING BATTERY USING FLUCTUATING POWER SOURCE - Systems and methods are disclosed for improving power efficiency in battery-charging DC power control systems when a power source input voltage is fluctuating. Power is received from the power sources in the form of AC or DC electrical energy and is controlled and regulated by the DC power control systems into DC voltages for charging batteries and/or for driving output loads. Input voltage from the power sources may fluctuate and may drop below a voltage level required to charge the batteries, resulting in a loss in power conversion efficiency. Embodiments of the present disclosure detect low input voltage, boost the low input voltage to a sufficient voltage level for charging the batteries, and manage the distribution of the battery power and input power to the loads to increase power efficiency while meeting load power demands. | 07-07-2011 |
| 20110198930 | METHOD FOR CONTROLLING INTERCONNECTION SYSTEM - An interconnected system that supplies power to a power system, and includes a power generator that changes in output, and an electric power storage-compensation device. The interconnected system is controlled so that operation of a sodium-sulfur battery that is included in the electric power storage-compensation device and compensates for a change in output of the power generator is stopped, or the interconnected system is set in a non-power transmission mode in which a planned power generation value of a power generation schedule is set to the sum of power generated by the power generator and local load power of the system, when the planned power generation value is 0 kW or less, and the sum of the power generated by the power generator and the local load power of the system has reached a value at which power is supplied to the interconnected system from the power system. | 08-18-2011 |
| 20110248567 | POWER FACTOR CORRECTION SYSTEM - A charging system of the present invention is connectable to a power grid having a monitoring device. The monitoring device monitors the power delivered to a plurality of loads and determines a power factor and a power factor correction value associated with the loads. The power factor correction value indicates the difference between the power factor and unity. The charging system includes an electrical device, a charger in communication with the electrical device, a charging controller, a power factor correction circuit, a communication device, and a controller. The communication device of the charger receives a data signal from the monitoring device indicative of the power factor correction value associated with the plurality of loads. The power factor correction circuit is configured to communicate an input current to and from the power grid, which adjusts the power factor of the associated loads to about unity. | 10-13-2011 |
| 20110304211 | Rack-Based Uninterruptible Power Supply - A rack power unit is configured to be inserted into a device rack of a data center. The rack power unit includes one or more power supplies and one or more battery packs. The one or more power supplies are each configured to receive power (e.g., AC power) when the apparatus is in the device rack, and convert the received power to a DC power. The one or more power supplies are further configured to output the DC power to a DC power bus of the device rack. The one or more battery packs are each configured to provide, in response to an interruption in the received power, DC power to the DC power bus of the device rack. | 12-15-2011 |
| 20120013188 | POWER SUPPLY SYSTEM AND CONTAINER DATA CENTER INCLUDING THE SAME - A power supply system includes a road electricity generating apparatus, a battery, and a voltage converter. The road electricity generating apparatus is installed in a road. The road electricity generating apparatus includes a number of piezoelectric crystals connected in series to convert potential energy of passing vehicles to electricity. The battery stores the electricity generated by the piezoelectric crystals. The voltage converter converts the electricity of the battery to a desired working voltage for the container data center. | 01-19-2012 |
| 20120032514 | HOUSEHOLD APPLIANCE WITH DEMONSTRATION MODE FUNCTION - Household appliance comprising: a user interface, a logic unit adapted to control the user interface and the other electrical components of the household appliance, and to perform, via the user interface, a demonstration mode, a main power supply circuit connectable to the supply mains and adapted to energize the user interface, the logic unit and the other electrical components of the household appliance, a secondary power supply circuit connectable to a battery and adapted to energize exclusively the user interface and the logic unit. The logic unit is configured to detect if the main power supply circuit is connected to the supply mains and if the secondary power supply circuit is connected to the battery, and to enable the performing of the demonstration mode, via the user interface, when it detects that the main circuit is unconnected to the supply mains and the secondary power supply circuit is connected to the battery. | 02-09-2012 |
| 20120043815 | ACTIVE FILTERING ELECTRICAL ACCUMULATOR UNIT - A power generation system has a generator, a power bus and an electrical accumulator unit. The electrical accumulator unit includes an independent controller that actively filters transients from the power bus. | 02-23-2012 |
| 20120062033 | POWER SUPPLY CIRCUIT USING RECHARGEABLE BATTERY - A power supply circuit uses a rechargeable battery that if a connection switching unit changes to a circuit connected state, a current starts to be supplied from the rechargeable battery to an over-discharge protection circuit, a logic circuit, and a power supply control circuit, and if the connection switching unit changes to a circuit non-connected state during this current supply, the current supplied to the over-discharge protection circuit, the logic circuit, and the power supply control circuit is maintained, and a current supplied from the rechargeable battery to the load circuit is started by supplying the current from the power supply control circuit to the load circuit, and if a voltage of the rechargeable battery drops while the current is supplied to the load circuit, and the over-discharge protection circuit stops the current supplied from the rechargeable battery to the load circuit, the over-discharge protection circuit maintains the stopped state. | 03-15-2012 |
| 20120068540 | ENERGY STORAGE SYSTEM FOR BALANCING LOAD OF POWER GRID - An energy storage system for balancing the load of a power grid, said energy storage system comprising: a controller; a plurality of energy storage tanks connected in parallel; and a plurality of controllable switches connected to the plurality of energy storage tanks, wherein the controller is configured to detect a frequency and a phase of the power grid, and to balance the load of the power grid based on the frequency and the phase of the power grid, by controlling the plurality of controllable switches to charge the plurality of energy storage tanks using power from the power grid or to input power from the plurality of energy storage tanks to the power grid. | 03-22-2012 |
| 20120080951 | POWER SOURCE CIRCUIT AND POWER SOURCE MANAGEMENT METHOD THEREOF - A power source circuit includes a power source detection unit, a control unit and a switch unit. The power source detection unit detects whether a plurality of power sources including a green power source is supplied to the power source circuit, and detects and outputting a power value of the green power source. In addition, the control unit is electrically coupled to the power source detection unit and a load, and the control unit further detects a power consumption value of the load, to generate a switch signal to the switch unit according to the power consumption value of the load and a result detected by the power source detection unit. Therefore, the switch unit selects the green power source and at least one of other power sources thereof to supply electric power to the load when necessary. | 04-05-2012 |
| 20120098342 | HIGH DENSITY UNINTERRUPTIBLE POWER SUPPLIES AND RELATED SYSTEMS AND POWER DISTRIBUTION UNITS - High density uninterruptible power supplies are provided including an enclosure and at least one uninterruptible power supply positioned in the enclosure. A battery associated with the at least one uninterruptible power supply is positioned in the enclosure. The at least one uninterruptible power supply and the associated battery are configured to provide at least thirty seconds of backup power to a load connected thereto. Related systems and power distribution units are also provided. | 04-26-2012 |
| 20120098343 | CHASSIS SLOTS ACCEPTING BATTERY MODULES AND OTHER MODULE TYPES - A chassis includes a component interconnect board having multiple multi-function slots coupled thereto. Each of the multi-function slots is configured to accept different types of modules, including a battery module and one or more other types of modules, such as server modules or storage modules. The component interconnect board also includes a power bus coupled to receive external power and route the external power to the multiple multi-function slots. | 04-26-2012 |
| 20120200160 | GRID REGULATION SERVICES FOR ENERGY STORAGE DEVICES BASED ON GRID FREQUENCY - Disclosed herein are representative embodiments of methods, apparatus, and systems for charging and discharging an energy storage device connected to an electrical power distribution system. In one exemplary embodiment, a controller monitors electrical characteristics of an electrical power distribution system and provides an output to a bi-directional charger causing the charger to charge or discharge an energy storage device (e.g., a battery in a plug-in hybrid electric vehicle (PHEV)). The controller can help stabilize the electrical power distribution system by increasing the charging rate when there is excess power in the electrical power distribution system (e.g., when the frequency of an AC power grid exceeds an average value), or by discharging power from the energy storage device to stabilize the grid when there is a shortage of power in the electrical power distribution system (e.g., when the frequency of an AC power grid is below an average value). | 08-09-2012 |
| 20120212057 | PORTABLE DEVICE AND IMAGE RECORDING DEVICE - A portable device operated by a rechargeable battery includes a connecting unit that connects the portable device and a power supply that supplies a driving current and a charging current; a detection unit that detects a battery voltage of the rechargeable battery; and a charging control unit that controls starting and stopping of charging of the rechargeable battery. When the battery voltage is greater than a predetermined threshold value, the charging control unit causes the power supply to stop supplying the charging current until the battery voltage becomes less than the predetermined threshold value. When the battery voltage is less than the predetermined threshold value, the charging control unit causes the power supply to start supplying the charging current until the rechargeable battery is fully charged. | 08-23-2012 |
| 20120217806 | CHARGE EQUALIZATION SYSTEMS AND METHODS - A battery system having at least one battery string of more than two batteries connected in series, a charge equalization circuit, a relay matrix, and a balance controller. The charge equalization circuit is capable of equalizing the charge on any pair of series connected batteries in the at least one battery string. The relay matrix is operatively connected between the charge equalization circuit and the at least one battery string. The balance controller controls the relay matrix such that at least one to battery characteristic of at least one battery is sensed. Based on at least one sensed battery characteristic, the balance controller controls the relay matrix such that the charge equalization circuit is connected across at least one pair of series connected batteries in the at least one battery string. | 08-30-2012 |
| 20120223579 | ELECTRICAL CHARGING AND DISCHARGING SYSTEM AND CHARGE AND DISCHARGE CONTROL DEVICE - The electric power generation system has a power generator configured to generate electric power using renewable energy, a battery configured to store electric power generated by the power generator, a detector configured to detect regularly a power data that is the amount of electric power generated by the power generator, a power output means configured to output electric power generated by the power generator and electric power discharged by the battery, and a controller configured to control the charge and discharge of the battery. The controller is configured to acquire the power data from the detector, to determine a first period based on the size of the fluctuations in the amount of electric power generated by the power generator from a first generated power output to a second generated power output, to control the charge and discharge of the battery. | 09-06-2012 |
| 20120235485 | POWER CONTROL TECHNIQUES FOR AN ELECTRONIC DEVICE - A portable electronic device, such as a fluid infusion device, obtains its operating power from a primary battery and a secondary battery. The primary battery may be a replaceable battery, and the secondary battery may be a rechargeable battery that can be charged with the primary battery under certain conditions. The device utilizes a power management scheme that transitions between the primary battery and/or the secondary battery to prolong the useful life of the primary battery. The device may also generate an intelligent battery life indicator that displays an accurate representation of the remaining life of the primary battery. | 09-20-2012 |
| 20120248870 | BATTERY CHARGER AND METHOD USING AN IRREGULAR POWER SOURCE - A battery charger includes an irregular power source, a capacitor connected to the power source for storing charge from the power source, and a control circuit which is operable to detect a charge current of a battery to be charged and to discharge the charge from the capacitor into the battery when the charge in the capacitor reaches a predetermined level. The control circuit is configured to change the predetermined level from a bulk charge mode to a float charge mode when the charge current is at or below a threshold value. | 10-04-2012 |
| 20120248871 | Transponder Power Supply, a Transponder and a method for Providing a Transponder Power Supply Current - A transponder power supply for providing a supply current based on an antenna input signal. The transponder power supply comprises an emergency circuit comprising a charging circuit, an emergency capacitor, and an output stage. The charging circuit is configured to charge the emergency capacitor based on the antenna input signal to a maximum voltage which is higher than a voltage of the antenna input signal. The output stage is configured to provide a contribution to the supply current using a charge of the emergency capacitor. | 10-04-2012 |
| 20120248872 | ELECTRIC POWER SUPPLY SYSTEM - An electric power supply system can determine a sharing ratio of an electric power so as to increase and decrease an output electric power supplied by an electric power generator in accordance with an output electric power value required for the electric power supply system, in a fuel cell following region where a frequency of a magnitude of the electric power is equal to or higher than a predetermined value in a frequency distribution of a magnitude of the electric power, and can determine the sharing ratio of the electric power so as to increase an output electric power supplied by an electricity storage device, in an assist region where the frequency is lower than a predetermined value in the frequency distribution, and can prevent an excess of discharging from an electricity storage device. | 10-04-2012 |
| 20120261991 | WIRELESS SENSOR WITH ENERGY SCAVENGER - An apparatus ( | 10-18-2012 |
| 20120319482 | METHODS AND SYSTEMS FOR ACTIVATING SEALED SENSORS IN THE FIELD - The present disclosure provides methods and systems for initiating sealed sensor units in the field. A packaged sensor unit may include a sensor module, an activation mechanism and an internal battery, all situated in a sealed enclosure. In some cases, the sealed enclosure may be devoid of any externally accessible switches. A pre-defined triggering stimulus may be applied to the packaged sensor unit, and the pre-defined triggering stimulus may be detected via the activation mechanism. In response to the activation mechanism detecting the pre-defined triggering stimulus, the internal battery may be connected to the sensor module. Prior to detecting the pre-defined triggering stimulus, both the sensor module and the activation mechanism may draw no power from the internal battery of the packaged sensor unit. In some cases, the activation mechanism, once activated, irreversibly couples the power supply to the sensor module. | 12-20-2012 |
| 20130002023 | HYBRID POWER SUPPLY SYSTEM - A hybrid power supply system includes a number of power modules electrically connected with each other in series. Each power module includes a fuel cell unit and a lithium-ion battery unit. Each fuel cell unit includes at least two fuel cell monomers electrically connected with each other in series. Each lithium-ion battery unit includes one or more lithium ion battery monomers electrically connected with each other in parallel. Each fuel cell unit is electrically connected with each lithium-ion battery unit in parallel to directly charge the lithium-ion battery unit. | 01-03-2013 |
| 20130026833 | POWER MANAGEMENT CIRCUIT - A power management circuit includes an input, a switch circuit, a first control unit, a second control unit, and a voltage conversion circuit. The input is connected to a load and receives a first direct current (DC) voltage from an external power circuit. The switch circuit is connected between the load and a battery. The first control unit is configured to control whether the switch circuit is switched on or off, based on the first DC voltage and an output voltage of the battery. The voltage conversion circuit is configured to convert the first DC voltage into a second DC voltage and output the second DC voltage to charge the battery. The second control unit is configured to control whether the voltage conversion circuit converts the first DC voltage into the second DC voltage for charging the battery, based on the first DC voltage and the output voltage. | 01-31-2013 |
| 20130038126 | STANDBY POWER SYSTEM FOR HANDHELD ELECTRONIC DEVICE AND METHOD FOR SUPPLYING STANDBY POWER - A standby power system for handheld electronic device and a method for supplying standby power are introduced. The system and method enable detection whether a handheld electronic device is set to a predetermined power consumption state whereby the handheld electronic device operates in a power supplying state of a standby battery and whether a main battery of the handheld electronic device is disconnected, allowing a user to change the main battery without shutting down the handheld electronic device and thereby saving time. | 02-14-2013 |
| 20130057071 | FUEL CELL BATTERY CHARGE/DISCHARGE MANAGEMENT SYSTEM AND METHOD - According to an embodiment of the disclosure, a system for supplying power to a device includes a battery, a mobile recharging power supply, a battery output, and a controller. The battery output is configured to supply power to the device. The controller is configured to upon detecting that a current through the battery output is below a threshold, initiate a supply of power to the battery output from the mobile recharging power supply. Additionally, the controller is configured to upon detecting that the current through the battery output is above the threshold, initiate a supply of power to the battery output from the battery. | 03-07-2013 |
| 20130076136 | Battery Powered Charger - A charger for recharging the batteries of a portable electronic device even when no external power source is available. A battery or cell is installed within the charger, and when no access is available to a fixed power source into which the charger can be plugged, the internal battery or cell can be used to recharge the electronic device. The internal battery can be a primary battery or a secondary battery. In the latter case, the internal battery can be maintained in a charged state by means of circuitry which, when the charger is plugged into the external power source, charges the internal battery as well as the battery of the electronic device. The external power source can be either an AC power wall socket, in which case the charger includes AC/DC voltage conversion circuits, or a car lighter socket, or the DC output of a conventional wall charger. | 03-28-2013 |
| 20130076137 | INTELLIGENT BATTERY SYSTEM - A mobile workstation includes a first battery bracket for releasable attachment of a main battery, a second battery bracket for releasable attachment of a backup battery and a power control circuit. The power control circuit includes a first input for receiving and monitoring power from the main battery, a second input for receiving and monitoring power from the backup battery, and a DC output. The power control circuit selectively routes a first flow of electricity from the main battery to the DC output when the first flow of electricity exceeds a predetermined value, and routes a second flow of electricity from the backup battery to the DC output when the first flow of electricity falls below the predetermined value. | 03-28-2013 |
| 20130088082 | WIRELESS POWER TRANSFERRING DEVICE, WIRELESS POWER RECEIVING DEVICE AND WIRELESS POWER TRANSFERRING AND RECEIVING DEVICE - Disclosed is a wireless power transferring device which includes a power generating unit configured to generate a power using a solar battery; a power charging unit including a super capacitor or a battery and configured to charge the generated power to retain a power; and a transmission unit configured to convert the power of the charging unit into a high frequency to send the high frequency wirelessly. | 04-11-2013 |
| 20130119765 | Power Supply and Method for Operating the Power Supply - A power supply, a controller, and a power element, wherein a DC compensation voltage is present at a first output of the power element to which a load having a variable current draw can be connected. A second output of the power element is thereby fed through a current measurement device, wherein a rechargeable battery is connected to the second output. A charging current or discharge current of the rechargeable battery measured by the current measuring device is set by controlling the DC compensating voltage. The charging current or discharge current of the rechargeable battery can thereby be determined even without a dedicated UPS assembly. | 05-16-2013 |
| 20130127249 | Power Supply System, Controller of Power Supply System, Method of Operating Power Supply System, and Method of Controlling Power Supply System - A power supply system of the present invention includes: a power generation system ( | 05-23-2013 |
| 20130193758 | Removable Battery of Computing Device - A computing device including a mounting component at a panel of the computing device to couple with a docking stand for a removable battery of the computing device to electrically couple and receive power from the docking stand and the removable battery supplies power to the computing device if the computing device decouples from the docking stand. | 08-01-2013 |
| 20130207472 | Extension USB Socket - A detachable extension USB socket for a portable device comprising: a cover housing for receiving a circuits; conducting pins coupled to said circuits and extending outside of said cover housing and said conducting pins being attachable from a wall socket; at least one USB port coupled to said conducting pins to allow an external device is charged from said wall socket through said least one USB port when a charging port of said external device is not match with said wall socket. | 08-15-2013 |
| 20130257156 | HYBRID ENERGY CONVERSION DEVICE - A piezoelectric-photovoltaic hybrid structure is described, having a plurality of superposed layers including a photo voltaic layer and a piezoelectric substrate. A method of forming such a structure is also described, including the steps of providing a piezoelectric substrate and superposing a photovoltaic layer over the substrate. A power conversion system is described, comprising such a hybrid structure with a first circuit connected to the piezoelectric substrate and a second circuit connected to the photovoltaic layer. Also discussed is a method of generating, storing, distributing, or consuming electrical energy, involving the use of such a system in connection with a distribution circuit or network, electrical load, or energy storage device. A further power conversion system is described where the piezoelectric and photovoltaic circuits are connected to a single, or a respective, DC-DC converter. A set of such power conversion systems may be connected in series at their output terminals. | 10-03-2013 |
| 20130285452 | PORTABLE POWER SYSTEM - An electronic circuit that accepts a variable DC voltage power source and converts it to a constant DC power source, the energy of which is either stored in a battery bank or sent out to DC loads or AC loads via a DC/AC conversion subsystem. | 10-31-2013 |
| 20130300200 | Auxiliary Battery - Disclosed is an adapter configured to couple an auxiliary battery for use with a portable device. The adapter is configured to house the OEM battery and the auxiliary battery. The power of the auxiliary battery is coupled in parallel to the OEM battery to extend the power capacity of the portable device. The adapter is further configured to isolate non-power contacts of the auxiliary battery from the portable device and from an OEM battery so as to avoid interference with any authentication circuits of the portable device or OEM battery. | 11-14-2013 |
| 20130320764 | Mobile Starting Device - A mobile energy supply device for an electric starter for starting an internal combustion engine has an internal battery and at least one capacitor that is connectible in parallel to the internal battery. | 12-05-2013 |
| 20140077600 | SYSTEM AND METHOD FOR CONTROLLING ENERGY STORAGE AND DISTRIBUTION - Embodiments relate to a system for controlling the storage and distribution of energy on a drill rig. The system includes a drill rig having a power consuming device, a power source for providing electrical power, a power storage device, and an electrical power bus. The power bus is electrically connected to the power source, the power consuming device, and the power storage device and is configured to provide an electrical pathway between one or more of the power source, power consuming device, and power storage device. | 03-20-2014 |
| 20140117762 | Battery System - An objective of the invention is to deal with difference of the internal resistance of batteries. | 05-01-2014 |
| 20140132071 | POWER LEVELING CONTROL DEVICE AND POWER LEVELING CONTROL METHOD - The processor of a power leveling control device acquires electric cell residue of an electric cell device in each monitoring time, calculates an electric cell residue representative value representing a transition of an electric cell residue in the period based on an acquired electric cell residue, and determines a variation with respect to the current leveling target value based on the electric cell residue representative value. The processor determines a leveling target value changed by the determined variation for power leveling for use in the next period, and controls the power to be supplied from a power supply and an electric cell device to a load based on the leveling target value for power leveling in the next period. Thus, the leveling control may be performed depending on the power supply and the power use situation of a load. | 05-15-2014 |
| 20140191577 | PEAK-CUT CONTROL DEVICE - A peak-cut control device is provided with a storage battery having a power generation device and a storage battery for charging/discharging a part of power generated by the power generation device. The peak-cut control device includes a difference power calculating section that calculates differential power between a planned power generation amount in the power generation device determined based on a temporary peak cut amount and a demand prediction power amount that predicts a power demand for each predetermined time, and also includes a peak-cut amount calculating section that compares the calculated differential power with chargeable power or dischargeable power per unit time of the storage battery every predetermined time and simulating charge/discharge of the difference power to/from the storage battery and an increase/decrease in the temporary peak-cut amount. | 07-10-2014 |
| 20140265581 | Human Machine Interface for the Local Monitoring and Control of a Containerized Energy Generation and Storage System - A containerized energy storage system including a human-machine interface (HMI). The HMI is located at the site of the containerized energy storage system either in close proximity to the exterior of the system, on an exterior wall of the system, or within a space or compartment formed in the exterior wall of the system which is closable to protect the HMI from the elements but which is accessed exteriorly by a user. | 09-18-2014 |
| 20140319914 | BATTERY SYSTEM AND ITS CONTROL METHOD - A battery system includes a battery, a control section that controls the battery to charge electric power supplied from the electrical grid and to discharge electric power to the electrical grid; and a system controller. The system controller controls the control section such that the battery system operates in a first mode where electric power that is generated by a pre-designated distributed electric power source associated with the electrical grid is supplied preferentially to a user's load or in a second mode where electric power that is charged in the battery is supplied preferentially to the user's load. | 10-30-2014 |
| 20140368039 | METHOD FOR PROVIDING CONTROL POWER, TAKING INTO ACCOUNT A VARIABLE TARGET FREQUENCY - A method for producing control power for stabilizing an AC electrical grid, wherein the AC electrical grid operates at a variable desired frequency and the AC electrical grid comprises at least one control power supplier which is controlled in a decentralized manner and which controls the grid frequency to a predefined frequency, wherein the predefined frequency is adapted to the desired frequency. | 12-18-2014 |
| 20150069839 | Battery Energy Storage, Battery Energy Storage System, Method, Computer Program And Computer Program Product - A battery energy storage arranged to be connected to a capacitor link, which is connected in parallel to a power converter. The battery energy storage includes a battery module and a direct current energy source connected in series with a voltage source converter. The voltage source converter is adapted to insert a positive voltage when the voltage of the battery module falls below a first threshold value, and to insert a negative voltage when the voltage of the battery module exceeds a second threshold value. The direct current energy source is adapted to be either charged or discharged during the voltage insertion by the voltage source converter. The disclosure also provides a battery energy storage system including such battery energy storage. | 03-12-2015 |
| 20150130278 | FEEDING APPARATUS AND FEEDING METHOD - A feeding apparatus configured to be supplied with electric-power from a noncontact power-feeding module and to feed electric-power to a power-feeding object, the feeding apparatus, includes: an electric-current variation detecting block configured to detect variation of power-feeding electric-current supplied from this noncontact power-feeding module; a battery configured to assist supply of electric-power from the noncontact power-feeding module; and a charger configured to perform setting for boosting, based on a request from the electric-current variation detecting block, wherein the battery assists supply of electric-power when the setting for boosting is performed. | 05-14-2015 |
| 20150360909 | Elevator Dampener and Energy Harvesting Device and Method - A vibration dampening device is operable to dampen vibrations within ropes of an elevator car or other components to improve ride quality, and is further operable to harness or harvest and convert energy from those vibrations into electrical energy. The dampening device includes a macro-fiber composite and the vibrations are communicated or transmitted to the macro-fiber composite. The macro-fiber composite is operable to harness or harvest and convert energy from vibrations into electrical energy. Such electrical energy is communicated or transmitted to a control system of the elevator car for storage and/or use. | 12-17-2015 |
| 20160006248 | POWER FLOW CONTROL SYSTEM AND POWER FLOW CONTROL METHOD - A power flow control system is provided that is capable of improving the reliability of controlling power flow fluctuation and creating wide applicability for systems that control power flow fluctuation. A power-varying device ( | 01-07-2016 |
| 20160094035 | COMBINED ELECTRICAL POWER PLANT - A combined electrical power plant is provided to supply power to a grid and a method to operate such a combined electrical power plant comprising a thermal power generation facility and an energy storage facility with a suitable energy storage capacity being able to supply additional electrical power to the grid and to receive and store electrical power from the thermal power generation facility or from the grid. Both facilities are electrically coupled to providing a combined power output to the grid and further comprise a plant controller to process the demand signal and to generate at least a first control signal and a second control signal from the demand signal, where the first control signal is a smoothened function of time of the demand signal resulting from a smoothening process executed by the plant controller taking into account operational characteristics of the thermal power generation facility. | 03-31-2016 |
| 20160141911 | OFFSHORE POWER GENERATION SYSTEM - The offshore power generation system includes a buoyant float for offshore operation. A solar subsystem and a wind subsystem are mounted to the top of the float to harness solar and wind energies and convert the same into useful power, e.g., electricity. A water turbine subsystem and a hydrofoil subsystem are mounted to the bottom of the float to harness tide-wave energies and convert the same into useful power. The generated power from the various subsystems feeds into a rechargeable battery for power collection and distribution. | 05-19-2016 |
| 20170237282 | ENERGY HARVESTING SYSTEM WITH INDIRECT POWER TRANSMISSION AND POWER DISTRIBUTION METHOD | 08-17-2017 |
| 307049000 | With series-connected auxiliary source | 1 |
| 20080278002 | POWER MANAGEMENT UNIT FOR BATTERY-OPERATED DEVICES - A power management unit for a battery-operated electronic device having a bus interface for the interconnection with another electronic device, the power management unit including an electric energy storage element coupled between a battery of the battery-operated electronic device and a voltage supply line of the bus interface, the electric energy storage element being operable to charge/discharge electric energy; a drive circuitry arranged to control a charge/discharge of the electric energy storage element. The drive circuitry is operable to cause an electric power supplied by the other electronic device through the voltage supply line to re-charge the battery; or, in case the other electronic device does not supply electric power, cause the battery supply electric power to the other electronic device through the voltage supply line. The power management unit is particularly adapted for battery-operated, mobile USB OTG devices. | 11-13-2008 |
