13th week of 2014 patent applcation highlights part 21 |
Patent application number | Title | Published |
20140084807 | DIGITALLY CONTROLLED CURRENT REGULATOR FOR HIGH POWER SOLID STATE LIGHTING - A representative apparatus controls current supplied to solid state lighting, such as light emitting diodes. The apparatus includes an inductor, a memory adapted to store a plurality of current parameters and a controller. The controller is configured to control a power source to supply current to the inductor to start an energizing cycle, monitor an inductor current level, reduce the inductor current level in response to the inductor current level reaching a predetermined peak inductor current, and increase the inductor current level in response to the inductor current reaching a predetermined minimum current is reached. In at least one embodiment, the controller modulates a current provided to the solid state lighting such that a DC average current level is substantially proportional to one-half of a sum of the predetermined peak current level and the predetermined minimum current level. | 2014-03-27 |
20140084808 | MOUNTED LIGHTING SYSTEMS AND METHODS - In one exemplary embodiment, a mounted lighting system may be described. The mounted lighting system may include a central processing module electrically and/or communicatively coupled to at least one light army, and electrically and/or communicatively coupled to a control module. The control module may receive remote signals that activate and provide a visual pattern amongst the lights on the light array. | 2014-03-27 |
20140084809 | VARIABLE-BEAM LIGHT SOURCE AND RELATED METHODS - Light sources with arrangements of multiple LEDs (or other light-emitting devices) disposed at or near the focus of a reflecting optic and controllable individually or in groups facilitate varying the angular distribution of the light beam (e.g., the beam divergence) via the drive currents supplied to the LEDs. | 2014-03-27 |
20140084810 | ILLUMINATION CIRCUIT FOR A TIME-OF-FLIGHT CAMERA - An illumination circuit for a time-of-flight camera includes at least one light source. At least one switch is configured to influence the at least one light source. At least one current limiter is disposed in a current path of the at least one light source. A parallel capacitor is disposed parallel to the at least one current limiter. The at least one light source can include a light-emitting diode and the at least one current limiter can include at least one of a limiting resistor, a limiting switch and limiting diode. | 2014-03-27 |
20140084811 | Methods and Systems for Controlling LEDs - The present invention relates to an electronic device, the electronic device comprising at least one LED, a driving unit for applying a driving algorithm for driving the LED during normal operation, and a measurement unit for determining a forward voltage of the LED by imposing a test current to the LED, the measurement unit being programmed for determining test current characteristics taking into account said driving algorithm. | 2014-03-27 |
20140084812 | DEVICE AND METHOD FOR LIGHT ADJUSTING FOR A LARGE-SCALE PARKING - An approach is provided for a device and a method for light adjusting that adjust illumination output based on the environment statues, which comprises a power supply, at least one detector, and at least one controller. The detector is configured for detecting an object in a detecting region. The controller is coupled to the power supply, the detector and a LED lamp, and is configured to provide adaptive power to the LED lamp based on the detections of the detector, wherein the controller provides a high voltage to the LED lamp when the object is detected by the detector. Therefore, it is able to reduce electricity consumption especially for a place requiring long term illumination. | 2014-03-27 |
20140084813 | POWER SUPPLY DEVICE AND LUMINAIRE - A power supply device includes a control circuit and a first circuit. The control circuit switches between a current control mode and a voltage control mode according to an inputted dimming signal and thus dims a light-emitting element. In the current control mode the control circuit controls an output current supplied to the light-emitting element to a target current, and in the voltage control mode the control circuit controls an output voltage supplied to the light-emitting element to a target voltage. The first circuit detects the output current and the output voltage, and sets the target voltage at which switching between the current control mode and the voltage control mode is carried out as a first voltage. | 2014-03-27 |
20140084814 | Portable Light Apparatus and Method of Attachment - An organic light emitting diode system is sufficiently thin and poser efficient to permit its attachment to different configurations such as pocketbooks, brief bags, suitcases and the like. At least one side of the OLED material can have an attachment mechanism to facilitate attachment to a surface in the area to be lighted. The system may include a portable power source that provides electrical power to actuate the OLED material, causing it to generate light. A switch connected to the battery can control power to the OLED material to switch the light on and off. The switch can be manually operated or automatic. The low power consumption of embodiments of the OLED apparatus also provides for unique applications and uses. | 2014-03-27 |
20140084815 | Layered Cluster High Voltage RF Opto-Electric Multiplier for Charged Particle Accelerators - Circuitry is presented that can provide high-voltage radio-frequency pulses in the range of from a few volts to megavolts for charged particle accelerators. Individual pulse forming sections, such as transmission line transformers (TLTs) or blumleins, are formed in clusters. The pulse forming sections of each cluster are connected in series and have transmission lines ending in a ring structure. Multiple clusters can then be arranged with their rings aligned along the axis of the accelerator. | 2014-03-27 |
20140084816 | POWER CONVERTER FOR AN ELECTRICAL MACHINE AND METHOD OF OPERATING THE MACHINE - A power converter has a first electrical circuit including a direct current (dc) voltage source, a first phase winding of an electrical machine, and a first switch operating in a conductive state. A second electrical circuit includes the first phase winding, a first unidirectional current device, and a capacitive storage element. A third electrical circuit includes the capacitive storage element, a second switch operating in a conductive state, and the first phase winding. A fourth electrical circuit includes the first phase winding, the dc voltage source, and a second unidirectional current device. | 2014-03-27 |
20140084817 | METHOD OF ENERGY AND POWER MANAGEMENT IN DYNAMIC POWER SYSTEMS WITH ULTRA-CAPACITORS (SUPER CAPACITORS) - A power management system includes an ultracapacitor and a charge shuttle including a power converter. The charge shuttle may be coupled with the ultracapacitor and may be configured to be coupled with a load. The charge shuttle can be configured to monitor one or more parameters of the load and the ultracapacitor, and to control energy flow between the load and the ultracapacitor based on or according to monitored parameters. The system may also include a battery or other rechargeable energy storage element. | 2014-03-27 |
20140084818 | POWER SOURCE SYSTEM, VEHICLE INCLUDING SAME, AND METHOD FOR CONTROLLING POWER SOURCE SYSTEM - A first opening/closing device is connected between a power storage device and a first pair of power lines. A second opening/closing device is connected between the power storage device and a second pair of power lines. A third opening/closing device opens and closes an electric conduction path between the power storage device and each of the first opening/closing device and the second opening/closing device. When starting to externally supply electric power, a control device charges a first capacitor connected between the first pair of power lines by closing the first opening/closing device and the third opening/closing device, and thereafter charges a second capacitor connected between the second pair of power lines by closing the second opening/closing device and opening the third opening/closing device. | 2014-03-27 |
20140084819 | CONTROLLER FOR DRIVING A MOTOR AND ELECTRIC POWER-ASSISTED VEHICLE - A controller for driving a motor has: an input part that receives, from each of two brake sensors, a signal indicating a corresponding brake is in an ON state or a signal indicating that the brake is in an OFF state; a control coefficient computing part that increases a control coefficient relative to a regeneration target value along a first slope when a first signal indicating only one of the brakes is in an ON state is received from the input part, the control coefficient computing part increasing the control coefficient along a second slope when a second signal indicating both brakes are in an ON state is received from the input part, the second slope rising faster than the first slope; and a control part controlling driving of the motor in accordance with the regeneration target value and the control coefficient computed by the control coefficient computing part. | 2014-03-27 |
20140084820 | DEVICE AND METHOD FOR MANAGING THE ELECTRIC BRAKING OF A VEHICLE - A device for managing electric braking power includes a continuous bus, a dissipation branch, a current sensor, a controller, and an electronic charging switch. The bus includes a first pole for connection to a vehicle electric traction machine, a second pole for connection to a battery, and a connection point for connection to the dissipation branch, which includes an electronic dissipation switch connected to a dissipation resistor. The current sensor and the charging switch are positioned on the bus between the connection point and the second pole. The charging switch controls a flow of current over the bus from the first pole to the second pole. When power sent over the bus is greater than a total of power that charging of the battery can absorb and power that the dissipation resistor can dissipate, the controller causes the charging switch to open. | 2014-03-27 |
20140084821 | Method and Apparatus for Controlling an Electrical Machine - An observer ( | 2014-03-27 |
20140084822 | CONTROL DEVICE FOR ROTARY MACHINE - A storage section stores, as stored current values, currents flowing when a voltage application section applies voltage vectors to a three-phase rotary machine. A position estimation section estimates the rotor position of the rotary machine in a stopped state based on the stored current values. An adjustment section adjusts a minimum necessary application time that allows the rotary machine to be magnetically saturated by voltage vector application, to enable rotor position estimation. Further, the adjustment section uses, as an adjustment evaluation value, the magnitude |ΔY| of differential admittance obtained by dividing a summed current value calculated from the stored current values by the voltage amplitude value of the voltage vector instruction when the voltage vector based on the voltage vector instruction is applied with the application time being set at an arbitrary application time, and adjusts the application time based on |ΔY|. | 2014-03-27 |
20140084823 | MOTOR CONTROLLING DEVICE AND MOTOR CONTROLLING METHOD - There are provided a motor controlling device and a motor controlling method. The motor controlling device includes: an open loop driving unit performing open loop controlling using a pulse width modulation (PWM) signal; a closed loop driving unit performing feedback controlling using a difference between a current speed of a motor and the PWM signal; and a driving controlling unit calculating a duty ratio of the PWM signal and comparing the calculated duty ratio with a preset reference duty to thereby control any one of the open loop driving unit and the closed loop driving unit to operate signal. | 2014-03-27 |
20140084824 | Sensorless Driving Apparatus and Sensorless Driving Method for Brushless Motor - The present relates to a sensorless driving apparatus and a sensorless driving method for a brushless motor. In a state that the brushless motor is driven by rectangular waves, when the driving apparatus detects that a rotation speed of the brushless motor becomes higher than a predetermined speed and thereafter it detects that an angle of a rotor of the brushless motor becomes a predetermined angle, the driving apparatus switches the drive from rectangular wave drive to sign wave drive. The driving apparatus sets as the predetermined angle an angle at which energizing mode is switched in the rectangular wave drive or an angle at which a motor torque is at a peak value in the rectangular wave drive. | 2014-03-27 |
20140084825 | METHOD FOR CHECKING OUT-OF-STEP OF SYNCHRONOUS MOTOR - A method for checking an out-of-step of a synchronous motor includes detecting electric degrees of the synchronous motor, in which the electric degrees comprise at least a first electric degree and a second electric degree detected at a preset interval, and the second electric degree is detected after the first electric degree; comparing the first electric degree with the second electric degree to obtain a comparing result; and determining that the synchronous motor is out of step when the comparing result satisfies a preset requirement. It is determined that the synchronous motor is out of step when the electric degree keeps unchanged or decreases progressively, or an increment of the electric degree is very small. | 2014-03-27 |
20140084826 | METHOD FOR CHECKING OUT-OF-STEP OF SYNCHRONOUS MOTOR - A method for checking an out-of-step of a synchronous motor includes detecting three-phase currents of the synchronous motor; determining whether a relationship between the three-phase currents satisfies a preset requirement; and if no, determining that the synchronous motor is out of step. It is determined that the synchronous motor is out of step when amplitudes of each current of the three-phase currents are not equal or when the phase difference between the three-phase currents is not 120°. | 2014-03-27 |
20140084827 | METHOD AND APPARATUS FOR OPERATING A POWER OUTPUT STAGE - The invention relates to a method for operating a power output stage ( | 2014-03-27 |
20140084828 | POWER SUPPLY SYSTEM FOR VEHICLE - When an earth faulting has occurred in a driving device for driving motor, an electric potential of a vehicle earth is changed. Therefore, in a DC/DC converter, a high-voltage noise intrudes a high-voltage detector through a connection node of a Y capacitor constituted by a pair of capacitors. When the earth faulting of the driving device has occurred, the control device lowers the direct-current side voltage of the inverter in the high-voltage system to reduce the quantity of the high-voltage noise intruding the high-voltage detector. | 2014-03-27 |
20140084829 | INVERTER CONTROLLING SYSTEM AND METHOD FOR REDUCING NOISE IN ECO-FRIENDLY VEHICLE - Disclosed is a system and method of controlling an inverter to reduce noise in an eco-friendly vehicle. In the method, at least one of a current motor torque and a current motor speed is monitored in real-time. It is determined whether or not the at least one of the current motor torque and the current motor speed corresponds to a noise occurrence range set to a current switching frequency. A changed switching frequency value corresponding to the at least one of the current motor torque and the current motor speed is calculated when the at least one of the current motor torque and the current motor speed corresponds to the noise occurrence range. A PWM signal is generated using the changed switching frequency value to control an inverter. | 2014-03-27 |
20140084830 | CONTROL DEVICE AND METHOD FOR OPERATING AN ELECTRICAL MACHINE DRIVEN BY AN INVERTER - The invention relates to a method for operating an electrical machine ( | 2014-03-27 |
20140084831 | CONTROL DEVICE AND METHOD FOR CONTROLLING ELECTRIC MOTOR - A control device of an electric motor includes: an operating state setting unit configured to set an operating state; a maximum output acquiring unit configured to acquire maximum output of the electric motor that is preset according to the operating state set; a speed detecting unit configured to detect a speed of the electric motor; a torque limit value calculating unit configured to calculate a torque limit value based on the speed and the maximum output; and a torque limiting unit configured to limit torque of the electric motor by the torque limit value when accelerating the electric motor. | 2014-03-27 |
20140084832 | MOTOR CONTROL SYSTEM, MOTOR CONTROL DEVICE, AND BRUSHLESS MOTOR - A motor control system includes a host ECU and a motor control device. The host ECU controls a wheel driving unit. A power supply to the ECU is halted when an IG switch is turned OFF. The motor control device receives a PWM command signal from the host ECU and controls a motor of a cooling blower. The host ECU modulates a duty ratio of pulses of the PWM command signal by a target rotating speed of the motor, modulates a period of the pulses of the PWM command signal by a continuous operation time of the motor, and transmits the result to the motor control device. The motor control device reconstructs both the target rotating speed and the continuous operation time, and controls rotating speed of the motor from the received PWM command signal. Moreover, the motor control device halts rotation of the motor when a signal-unreceiving time period of the PWM command signal becomes larger than the continuous operation time. | 2014-03-27 |
20140084833 | METHOD AND APPARATUS FOR IMPROVING OUTPUT OF A MULTI-WINDING MOTOR - A technique for controlling drive currents to respective windings of a multi-winding brushless motor comprises monitoring an output of the motor and a demand of the motor, determining whether a failure mode has occurred, the failure mode being an instantaneous complete or partial failure to generate demanded output; and, upon detection of a failure mode on a first winding, distributing a demand contribution that is not being produced by the first winding to one or more of the windings that are not in a failure mode. The demand may be torque demand, and the failure modes may include winding failure, and voltage and/or current saturation. Improved torque output is generated by the redistribution of demand among phases in the event of a failure mode. | 2014-03-27 |
20140084834 | Electronic Control Device - Disclosed is an electronic control device for controlling an electric actuator, which includes: a housing fixed to an outer side of an exterior part of the electric actuator; a circuit board accommodated in an inner space of the housing; a temperature sensor mounted on the circuit board; and a heat transfer part having a thermally conductive relay member extending from the circuit board in a direction toward the exterior part to define a continuous heat transfer path from the temperature sensor to an inner side of the exterior part such that heat of the inner side of the exterior part can be transferred to the temperature sensor through the heat transfer path. | 2014-03-27 |
20140084835 | LOAD DRIVING DEVICE AND ELECTRONIC DEVICE USING SAME - A load driving device according to the present invention has: an internal circuit (DRV) that operates in response to the supply of a power supply voltage (HV or LV); an output circuit (PD | 2014-03-27 |
20140084836 | COMPRESSOR HAVING A CONTROL AND DIAGNOSTIC MODULE - A system and method includes a power supply that generates an alternating current power for powering a compressor with a capacitor, a voltage sensor that measures voltage values based on the alternating current power, a current sensor that measures current values based on the alternating current power, and a controller. The controller communicates with the voltage sensor and the current sensor, determines a power factor value based on at least one of the voltage values and at least one of the current values, and determines a fault in the capacitor based on the power factor and at least one of the current values. | 2014-03-27 |
20140084837 | MODULAR MOTOR DRIVE CONFIGURATION SYSTEM AND METHOD - A motor drive system includes a power sub-assembly that comprises power electronic components and driver circuitry for controlling gate drive signals to the power electronic components. A control sub-assembly is removably mounted to the power sub-assembly and comprises control circuitry for implementing a motor control routine for control of an electric motor. In operation, all control signals originate in the control-subassembly, and are transmitted via mating connectors to the power sub-assembly for driving the motor. | 2014-03-27 |
20140084838 | NUMERICAL CONTROLLER HAVING FUNCTION FOR SWITCHING BETWEEN PRESSURE CONTROL AND POSITION CONTROL - When a numerical controller is notified of switching to pressure control during instructing of position-controlled synchronization, the numerical controller places the synchronization instruction in pause and switches to a pressure-controlled instruction. Then, when it is desired to return from pressure control to position control, a transition from pressure control to position control is effected by resuming the position-controlled synchronization instruction that has been placed in pause hitherto and outputting movement instructions up to the actual position all at once. With this, the actual speed matches the position-controlled speed controlled by the servo control section, thereby reducing a shock at the time of switching from pressure control to position control. | 2014-03-27 |
20140084839 | MULTI-AXIS MOTOR DRIVING SYSTEM AND MULTI-AXIS MOTOR DRIVING APPARATUS - The multi-axis motor driving apparatus includes an integrated controller that is configured to discriminate between a drive axis that uses the motor subjected to semi-closed control based on the motor control command and a detection position detected by the encoder and a drive axis that uses the motor subjected to full-closed control based on the motor control command, the detection position detected by encoder and a detection position detected by the linear scale, based on a change amount of the detection position of the encoder or the detection position of the linear scale obtained when the motor subjected to full-closed control is driven. | 2014-03-27 |
20140084840 | ROBOT APPARATUS, ROBOT CONTROL METHOD, PROGRAM, AND RECORDING MEDIUM - A robot apparatus includes a rectangular wave generating portion arranged on the output side of a speed reducer, and configured to generate first output pulse signals upon driving of a joint. A control portion includes calculating portions and a motor control portion. The motor control portion estimates an estimated joint angle using input pulse signals, and controls to operate a servo motor so that this estimated joint angle matches a target joint angle. The calculating portions calculate a torsion angle of the joint corresponding to a deviation amount between the first output pulse signals and a pulse waveform of an ideal state. The motor control portion controls to operate the servo motor so as to correct the estimated joint angle by the torsion angle. | 2014-03-27 |
20140084841 | MOTOR DRIVE CONFIGURATION SYSTEM AND METHOD - A motor drive comprises a power sub-assembly and a control sub-assembly removably secured to the power sub-assembly. The power sub-assembly contains all power electronic circuitry and driver circuitry for the power electronics. The control sub-assembly comprises control circuitry for implementing a motor control routine that generates control signals for the power sub-assembly. The control sub-assembly is configured to conform to a USB mass storage device class such that it will appear as an icon on a configuration station when coupled to the configuration station via a USB cable. Thereafter, the drive may be accessed by selecting the icon, and parameter file and data transfer may be performed, such as by drag-and-drop transfer steps. | 2014-03-27 |
20140084842 | Energy Saving Solar Device - Herein is disclosed an improved device for supplying electrical current to a load from a primary current source. The device includes first and second rechargeable batteries each of which is coupled to both the load and the primary current source by a circuit. The circuit is configured to supply the load by cyclically drawing current directly from the batteries one at a time. During each cycle, the circuit draws current from one of the batteries while simultaneously recharging the other battery which with current from the primary current source. The circuit is configured to switch the drawing and recharging of the batteries at the end of each cycle. The circuit is further configured to set the cycle for a period of several minutes. | 2014-03-27 |
20140084843 | High Voltage Charge Pack - A portable high voltage charging apparatus (HVCA) can be configured to controllably charge a hybrid electric vehicle (HEV) traction battery using energy provided by a low voltage (LV) lead acid vehicle battery. An HVCA can include a DCDC converter configured to boost a lower input voltage from the LV battery to a higher output voltage provided to the HV battery. The HVCA can be configured with a traction battery interlock, allowing offline charging of the traction battery. In an example embodiment, an HVCA can be configured to communicate with an HV battery control module via a CAN bus. An HVCA can be configured to transfer energy to the HV battery for a predetermined time period, then automatically stop the transfer process. An HVCA can be configured to receive user input to start and/or stop a charging process. An example embodiment can include a supplemental charger to boost LV battery voltage. | 2014-03-27 |
20140084844 | SELF-CONTAINED AUTOMOTIVE BATTERY BOOSTER SYSTEM - A self-contained automotive battery booster system for boosting depleted automotive batteries when no external power source is available is provided, the self-contained automotive battery booster system having an integral power source; means for connecting the self-contained automotive battery booster system to an automotive battery; circuitry to ensure the safety of the user, the self-contained automotive battery booster system and the depleted automotive battery; and circuitry to allow the user to control the flow of electricity from the integral power source to the depleted automotive battery. The circuitry to ensure the safety of the user, the self-contained automotive battery booster system and the depleted automotive battery can include various warning indicators such as horns and LEDs and can prevent the activation of the self-contained automotive battery booster system in certain situations. The circuitry to allow the user to control the flow of electricity from the integral power source to the depleted automotive battery can allow the user to select different output voltages depending on the voltage required by the depleted battery. | 2014-03-27 |
20140084845 | Charger and Charge Control Circuit for Use Therein - The present invention provides a charger circuit for supplying power from an external power source to a first common node and charging a second common node from the first common node; a regulator circuit is coupled between the external power source and the first common node. The charger circuit includes a switching regulator power stage for controlling charging to the second common node. The switching regulator power stage supplies power to the second common node according to detected voltage at the first common node, detected voltage at the second common node, and charging current to the second common node. | 2014-03-27 |
20140084846 | Method and Circuitry to Adaptively Charge a Battery/Cell - The present inventions, in one aspect, are directed to techniques and/or circuitry to applying a charge pulse to the terminals of the battery during a charging operation, measure a plurality of voltages of the battery which are in response to the first charge pulse, determine a charge pulse voltage (CPV) of the battery, wherein the charge pulse voltage is a peak voltage which is in response to the first charge pulse, determine whether the CPV of the battery is within a predetermined range or greater than a predetermined upper limit value and adapt one or more characteristics of a charge packet if the CPV is outside the predetermined range or is greater than a predetermined upper limit value. | 2014-03-27 |
20140084847 | Configurable Power Supply System - A configurable power supply system is disclosed. The configurable power supply system comprises a power source for providing input power, a switch, coupled to the power source, for enabling a bypass path for outputting the input power to an output node as an output power when turned on; a rechargeable battery module for storing the input power for outputting a battery power; a charging unit, coupled between the power source and the rechargeable battery module, for charging the rechargeable battery module with the input power; a converting unit, coupled to the rechargeable battery module, for converting the battery power to generate the output power; and a control unit, coupled to the switch, the charging unit, and the converting unit, for controlling functions of the switch, the charging unit, and the converting unit. | 2014-03-27 |
20140084848 | Temperature-Controlled Power Supply System and Method - A temperature-controlled power supply system is disclosed. The temperature-controlled power supply system comprises a power source, for supplying input power; a rechargeable battery module, for receiving the input power for power storage; a charging unit, coupled between the power source and the rechargeable battery module, for charging the rechargeable battery module with the input power; a temperature sensing unit, coupled to the rechargeable battery module, for sensing a temperature of the rechargeable battery module; and a current control unit, coupled to the temperature sensing unit and the charging unit, for controlling a current for charging the rechargeable battery module according to the temperature of the rechargeable battery module. | 2014-03-27 |
20140084849 | APPARATUS AND METHOD OF CHARGING RECHARGEABLE BATTERY - The apparatus of charging a rechargeable battery includes a voltage detector which detects a voltage value between terminals of a rechargeable battery, a current generator which generates current for charging the rechargeable battery and outputs the generated current to the terminals of the rechargeable battery, and a controller which controls the current generator based on the voltage value detected by the voltage detector. The current generator outputs a first current for which a direction thereof between the terminals of the rechargeable battery is constant, in a charging period of the rechargeable battery, wherein the first current comprises direct current, and a second current for which a direction thereof between the terminals of the rechargeable battery is periodically reversed, in an intermittent period of the rechargeable battery. | 2014-03-27 |
20140084850 | HOST APPARATUS, USER TERMINAL APPARATUS, METHOD OF CONTROLLING CHARGER, AND METHOD OF COMMUNICATION USING THE SAME - A host apparatus, a user terminal apparatus, a method of controlling a charger, and a method of communication thereof. The host apparatus includes: a connector which includes a terminal to which the user terminal apparatus is connected; a power supplier which supplies power to the connector; a controller which, if the host apparatus operates in a first operation mode when the user terminal apparatus is connected to the connector through the terminal, charges a battery of the user terminal apparatus with the power supplied from the power supplier; and a charging maintainer which, if the host apparatus operates in a second operation mode, charges the battery with power supplied from the power supplier. | 2014-03-27 |
20140084851 | APPARATUS AND METHOD FOR CHARGING BATTERY - Disclosed is an apparatus (and method) for charging a battery having a voltage measuring unit for measuring a voltage, a control unit for outputting a charge control signal corresponding to an early charging mode in which the battery is charged until a voltage of the battery rises to a preset cut-off voltage (Vc) and a charge control signal corresponding to a late charging mode in which the battery is charged while lowering a charge power in phases, and a charging unit for providing a charge power corresponding to the charge control signal to the battery, wherein a point of lowering the charge power in phases is associated with a point at which the voltage of the battery reaches the cut-off voltage again by the lowered charge power. Therefore, a voltage level reached at full charge of a battery may be raised in a simple and efficient way. | 2014-03-27 |
20140084852 | INTERNET DEVICE AND AUTOMATIC SWITCHING METHOD, APPARATUS AND CIRCUIT FOR CHARGING INTERFACE OF INTERNET DEVICE - An internet device and an automatic switching method, apparatus and circuit for a charging interface of an internet device are disclosed. The device includes a device charging interface ( | 2014-03-27 |
20140084853 | CHARGING DEVICE - The present invention addresses the problem of providing a charging device capable of precisely outputting charging power to a battery or the like within a broad voltage range of tens-to-hundreds of volts. This charging device comprises: a converter unit that outputs a charging voltage to a battery and a control unit that outputs a control signal of a pulse width determined on the basis of the voltage value of the charging voltage to a switching element of the converter unit, thereby setting the switching element to a conducting state for only a time corresponding to the pulse width. The control unit changes the output interval for the control signal in accordance with the output interval for the control signal as the voltage value of the charging voltage decreases. | 2014-03-27 |
20140084854 | PORTABLE TERMINAL DEVICE, CHARGING METHOD, AND PROGRAM - A portable terminal device is provided which is capable of notifying a user of a use status of external power supplies when there are a plurality of external power supplies for charging. A portable terminal device includes a secondary battery which is charged with power supplied from any one of a plurality of external power supplies, a detection unit which detects that each of the plurality of external power supplies has been connected, a power supply status determination unit which determines a power supply status indicating whether charging using the plurality of external power supplies is possible based on a detection result of the detection unit, a selection unit which selects an external power supply to be used for charging from among the plurality of external power supplies based on the power supply status of each of the plurality of external power supplies determined by the power supply status determination unit, and priority orders of the external power supplies which are orders of selecting the external power supply which supplies the power to the secondary battery from among the plurality of external power supplies, a charging unit which charges the secondary battery with the power supplied from the external power supply selected by the selection unit, and an output unit which outputs information indicating the external power supply selected by the selection unit. | 2014-03-27 |
20140084855 | COMMUNICATION EFFICIENCY WITH AN IMPLANTABLE MEDICAL DEVICE USING A CIRCULATOR AND A BACKSCATTER SIGNAL - A device includes a primary antenna configured to communicate a signal to an antenna of an implantable medical device (IMD). A circulator is coupled to the primary antenna. The circulator enables the signal to pass from a transmitter to the primary antenna. The circulator also enables a backscatter signal from the IMD to pass from the primary antenna to a receiver. A processor coupled to the receiver. The processor configured to determine, based on the backscatter signal, an improved impedance value for a component of the IMD and/or an improved frequency for the signal communicated to the IMD, to improve communication efficiency of the signal to the IMD. | 2014-03-27 |
20140084856 | METHODS AND SYSTEMS FOR RAPID WIRELESS CHARGING | 2014-03-27 |
20140084857 | Methods And Systems For Detecting Foreign Objects In A Wireless Charging System - Methods and systems are described for using detection coils to detect metallic or conductive foreign objects that can interfere with the wireless transfer of power from a power transmitter to a power receiver. In particular, the detection coils are targeted to foreign objects that are smaller than a power transmitter coil in the power transmitter. | 2014-03-27 |
20140084858 | WIRELESS POWER TRANSMISSION APPARATUS AND METHOD AND WIRELESS POWER RECEPTION APPARATUS - A wireless power transmission apparatus includes a measurer configured to measure a value of a current flowing in a source resonator, a communication unit configured to receive a value of a charging current of a battery from a wireless power reception apparatus, and a power controller configured to control an amount of power to be transmitted by the source resonator based on either one or both of the value of the current measured by the measurer and the value of the charging current received by the communication unit. The value of the charging current of the battery varies as the battery is charged. | 2014-03-27 |
20140084859 | Vehicle Charger Safety System and Method - Wireless vehicle charger safety systems and methods use a detection subsystem, a notification subsystem and a management subsystem. The detection subsystem identifies a safety condition. The notification subsystem provides an indication of the safety condition. The management subsystem addresses the safety condition. In particular, undesirable thermal conditions caused by foreign objects between a source resonator and a vehicle resonator are addressed by sensing high temperatures, providing a warning and powering down a vehicle charger, as appropriate for the environment in which the charger is deployed. | 2014-03-27 |
20140084860 | APPARATUS AND METHODS FOR CHARGING AN IMPLANTED MEDICAL DEVICE POWER SOURCE - Apparatus and methods for charging an implanted medical device. | 2014-03-27 |
20140084861 | NON-CONTACT POWER RECEPTION APPARATUS AND JIG FOR FABRICATING CORE FOR NON-CONTACT POWER RECEPTION APPARATUS - A non-contact power reception apparatus is provided, in which a power reception coil for a charging system and a loop antenna for an electronic settlement system are mounted on a battery pack and a cover case of a portable terminal such that the power reception coil is arranged in the center thereof and the loop antenna is disposed outside the power reception coil, so that a mode of receiving a wireless power signal and a mode of transmitting and receiving data are selectively performed, thereby preventing interference from harmonic components and enabling non-contact charging and electronic settlement using a single portable terminal. A jig for fabricating a core to be mounted to the non-contact power reception apparatus is provided. | 2014-03-27 |
20140084862 | Charging System - Disclosed is a charging system for both plug-in charging systems and contactless charging systems, having a simple electrical configuration, and capable of achieving miniaturization and weight saving. The charging system includes a secondary cell charged via first/second coils of a transformer to which electrical power is supplied from a first power supply via a plug-in connector, and a third coil supplied with electrical power from a second power supply, a relative position of which to the second coil of the transformer is variable, and which can be magnetically coupled to the second coil when the second coil approaches the third coil, wherein the secondary cell is charged via magnetic coupling between first/second coils when charging the secondary cell by the first power supply, and the secondary cell is charged via magnetic coupling between the third coil and second coils when charging the secondary cell by the second power supply. | 2014-03-27 |
20140084863 | POWER RECEIVING DEVICE, VEHICLE, AND CONTACTLESS POWER FEEDING SYSTEM - A contactless power feeding system includes a power transmitting device including a power transmitting unit and a power receiving device including a power receiving unit, and allows the power transmitting and receiving units to electromagnetically resonate with each other to supply electric power contactlessly. The power receiving device includes a power storage device for storing therein the electric power received by the power receiving unit, and a light emitting unit receiving the electric power received by the power receiving unit and emitting light, and varying in brightness according to the electric power received. The received electric power varies according to a positional displacement between the power transmitting unit and the power receiving unit. The user can recognize the positional displacement from information relevant to the brightness of the light emitting unit. | 2014-03-27 |
20140084864 | Method for Charging a Battery - The disclosure relates to a method for charging a battery having at least one battery cell. A first connection of a charging device is connected to a first pole of the at least one battery cell by a rectifying device. The rectifying device is set up such that charging current can flow. The disclosure further relates to a charging device, a battery, and a motor vehicle, which are configured to carried out the method. | 2014-03-27 |
20140084865 | CHARGER - The disclosure provides a charger including a base and a charging circuit. The base includes a coupling portion for detachably coupling with one of multiple supporting stands. Each of the supporting stands has a supporting container with different standards. The coupling portion has a coupling surface. The coupling surface is used for supporting one of the supporting stands. The charging circuit is disposed in the base and the charging circuit has a first electrical connector. The first electrical connector protrudes from the coupling surface. When the coupling portion is coupled with the supporting stand, a portion of the first electrical connector is disposed in the supporting container. | 2014-03-27 |
20140084866 | ELECTROMAGNETIC INDUCTION DEVICE OF COIL TYPE FOR CHARGING AND SUPPLYING POWER - An electromagnetic induction device of coil type for charging and supplying power, the device comprises a split type electrical body ( | 2014-03-27 |
20140084867 | SECONDARY BATTERY DEVICE AND BATTERY CAPACITY ESTIMATION SYSTEM - Certain embodiments provide a secondary battery device comprising: a battery module including a plurality of secondary battery cells; a battery monitoring circuit that measures a cell voltage value and a cell temperature value of each cell; a current measurement circuit that measures a current value flowing through the battery module; a time addition unit that adds time information to the current value, the cell voltage value and the cell temperature value, respectively; a memory that stores the current value, the cell voltage value and the cell temperature value, each value being associated with time information; and an operation unit that calculates a time difference between the cell temperature value and the cell voltage value, or a time difference between the cell temperature value and the current value stored in the memory, and determines a degree of deterioration for each cell according to the time difference. | 2014-03-27 |
20140084868 | BALANCING METHOD AND BATTERY SYSTEM - According to an example embodiment, a battery system includes: a plurality of modules, each including a plurality of cells connected to each other in series and a cell balancing circuit performing a balancing operation between the plurality of the cells based on voltages of the plurality of the cells; and a module balancing circuit performing a balancing operation between the modules based on voltages of the modules. | 2014-03-27 |
20140084869 | METHOD AND APPARATUS FOR CHARGING AND DISCHARGING BATTERY - Disclosed is an apparatus and methods for charging and discharging a battery, the apparatus including at least one tray provided in a charge/discharge structure, or detached from the charge/discharge structure, for charging and discharging, a plurality of battery cells included in the at least one tray, and a power control system to supply power to the plurality of battery cells connected in series through a power line, wherein the power control system controls a current flowing through the plurality of battery cells connected in series. | 2014-03-27 |
20140084870 | SYSTEM AND METHOD FOR BALANCING CHARGE WITHIN A BATTERY PACK - A system for balancing charge within a battery pack with a plurality of cells connected in series, including a capacitor; a processor configured to select a combination of donor cells and receiver cells from the plurality of cells in one of the following two modes: (1) a first mode where the number of donor cells is equal to the number of receiver cells, and (2) a second mode where the number of donor cells is greater than the number of receiver cells; and a plurality of switches that electrically connect the capacitor to the donor cells to charge the capacitor, and that electrically connected the capacitor to the receiver cells to discharge the capacitor. The transfer of charge between cells in the plurality of cells through the capacitor balances the charge within the battery pack. | 2014-03-27 |
20140084871 | SYSTEMS AND METHODS FOR BALANCING BATTERY CELLS - In a power converter, a primary winding receives an input power. In addition, multiple secondary windings transform the input power into multiple charging currents to charge a set of cells via a set of paths. The multiple secondary windings further balance the set of cells based on the charging currents. A ratio between a first turn number of a first secondary winding of the secondary windings and a second turn number of a second secondary winding of the secondary windings is determined by a nominal voltage ratio between two corresponding cells of the set of cells. | 2014-03-27 |
20140084872 | CHARGE AND DISCHARGE CONTROL DEVICE AND CHARGE AND DISCHARGE CONTROL METHOD - A charge and discharge control device includes: a coordination unit which generates coordination information for calculating an output value which each storage battery is caused to output, based on a bus voltage value and a target voltage value; a string output calculating unit which calculates, based on the coordination information, an output target value indicating the output value which the storage battery is caused to output to maintain the bus voltage value at the target voltage value; and a control unit which causes, among the storage batteries, a storage battery corresponding to the calculated output target value to output an output having magnitude indicated by the calculated output target value, wherein the coordination unit generates the coordination information to avoid simultaneous presence of a storage battery that outputs an output in a charge direction and a storage battery that outputs an output in a discharge direction. | 2014-03-27 |
20140084873 | PROTECTION APPARATUS FOR SECONDARY BATTERY - A battery pack includes a secondary battery; and a protection device including: a measurement unit coupled to the secondary battery and configured to measure a temperature and a voltage of the secondary battery; a temperature estimation unit coupled to the measurement unit and configured to estimate a future temperature of the secondary battery; and a charging/discharging unit coupled to the secondary battery and configured to adjust a current or an input voltage applied to the secondary battery based on the future temperature and the voltage of the secondary battery. | 2014-03-27 |
20140084874 | METHOD AND APPARATUS FOR PROVIDING ELECTRICAL ENERGY - In a charging management system for electrical vehicles, a maximum charging current for a plurality of charging operations, e.g., for a plurality of charging stations and/or electrical vehicles, is coordinated in a centralized or decentralized manner while complying with predefined flexibly adjustable secondary conditions. The secondary conditions can include economic and/or technical stipulations. In addition to a centralized load management system, a decentralized load management facility carries out load distribution via a master charging station or autonomously by each charging station itself. If the master charging station fails, a changeover is made to a backup master charging station. The method can be used, for example, in electrical mobility, in particular the electrification of individual traffic. | 2014-03-27 |
20140084875 | ELECTRIC MOTOR DRIVES FOR RECAPTURING ELECTRICAL ENERGY - A set of electric motor drives for recapturing otherwise unused electrical energy from electric motors and methods of using same are disclosed that provide electrical energy in addition to mechanical energy by recapturing electrical energy that would be unused if conventional technologies were followed. Such recapturing motor drives can provide recaptured electrical energy to other loads, can transfer recaptured electrical energy to storage devices for future use, and/or can recirculate recaptured electrical energy back through a recapturing motor drive. By recapturing unused electrical energy, the recapturing motor drives generate significantly greater over-all energy output for any given electrical energy input drawn from any power source, thereby materially increasing the efficient and effective use of electrical energy drawn from the power source and dramatically reducing the relative consumption of electrical energy drawn from the power source. The present invention also lowers component count, thereby reducing design time and production costs. | 2014-03-27 |
20140084876 | ENHANCED EFFICIENCY ENERGY-SCAVENGING INTERFACE, METHOD FOR OPERATING THE ENERGY-SCAVENGING INTERFACE, AND ENERGY-SCAVENGING SYSTEM COMPRISING THE ENERGY-SCAVENGING INTERFACE - An energy-scavenging interface includes first and second switches connected in series between an input and reference, and third and fourth switches connected in series between the input and an output. A control circuit closes the first and second switches and opens the third switch for a first time interval to store charge in a storage element. A scaled copy of a peak value of the charging current is obtained. The control circuit then opens the first switch and closes the third and fourth switches to generate an output signal as long as the value in current of the output signal is higher than the value of said scaled copy of the peak value. | 2014-03-27 |
20140084877 | Compensation System For Medium Or High Voltage Applications - A compensating system for a power system includes a compensator including semiconductor switch means, which compensator has phase legs which on a first side of the compensator defines AC inputs for connection to a respective phase of the power system. The phase legs are connected in wye connection at a second side of the compensator, which wye connection has a neutral point. A filter arrangement at a first side thereof is connected to the neutral point of the wye connection and at a second side is connected to the AC inputs to thereby form a circuit with the compensator. The filter arrangement is arranged such that the circuit acts essentially as an open circuit for positive sequence currents or voltages and negative sequence currents or voltages, and as a closed circuit for zero-sequence currents. | 2014-03-27 |
20140084878 | POWER SUPPLY SWITCHING CIRCUIT - Provided is a power supply switching circuit capable of suppressing a load fluctuation such as undershoot that occurs at an output terminal at the time of power supply switching. The power supply switching circuit includes: a battery connected to the output terminal; a replica current generation circuit for generating a replica current that is proportional to a current flowing from the battery to the output terminal; a voltage regulator connected to the output terminal, the voltage regulator including a reference voltage circuit, an error amplifier circuit, an output transistor, and a voltage divider circuit; and a current mirror circuit for causing the replica current to flow through the output transistor of the voltage regulator. | 2014-03-27 |
20140084879 | POWER SUPPLY DEVICE - A connection switch control part that, within a voltage change period where an applied voltage to an inverter can be changed by repeatedly and alternately switching to a serial state where a first power supply and a second power supply are connected in series to the inverter and to a parallel state where the first power supply and the second power supply are connected in parallel to the inverter, provides: a first period during which current of either one of the first power supply and the second power supply changes with an increasing trend, and current of the other one changes with a decreasing trend; and a second period during which current of one of the power supplies changes with a decreasing trend and current of the other power supply changes with an increasing trend. | 2014-03-27 |
20140084880 | DC-DC CONVERTER INCORPORATING TRIM CELL - A novel and useful radio frequency (RF) front end module (FEM) circuit that provides high linearity and power efficiency and meets the requirements of modern wireless communication standards such as 802.11 WLAN, 3G and 4G cellular standards, Bluetooth, ZigBee, etc. The configuration of the FEM circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard CMOS processes. The FEM circuit includes a power amplifier made up of one or more sub-amplifiers having high and low power circuits and whose outputs are combined to yield the total desired power gain. An integrated multi-tap transformer having primary and secondary windings arranged in a novel configuration provide efficient power combining and transfer to the antenna of the power generated by the individual sub-amplifiers. | 2014-03-27 |
20140084881 | LOW DROPOUT REGULATOR WITH HYSTERETIC CONTROL - Described is an apparatus comprising: an output stage having an input supply node to receive an input power supply and an output node to provide an output supply to a load; an amplifier to control current strength of the output stage according to the output supply and a reference voltage; and a hysteresis unit to monitor the output supply and operable to control the current strength of the output stage according to a voltage level of the output supply. Described is another apparatus which comprises: a plurality of charge pumps to adjust current strength of the output stage; and a logic unit to monitor the output supply and operable to control the plurality of charge pumps according to a voltage level of the output supply and one or more reference voltages. | 2014-03-27 |
20140084882 | STEP-UP/DOWN TYPE POWER SUPPLY CIRCUIT - A first added signal that is acquired by adding a reference current signal that is in proportion to a current flowing through an inductance element, a slope compensation signal and a voltage difference signal that is in proportion to a difference between an input voltage and an output voltage and a second added signal that is acquired by adding the reference current signal and the slope compensation signal are compared with a difference signal of a voltage that is in proportion to the output voltage and a predetermined reference voltage, and pulse widths of driving pulse signals of a step-down switching circuit and a step-up switching circuit are controlled as a result of the comparison. | 2014-03-27 |
20140084883 | WINDOWLESS H-BRIDGE BUCK-BOOST SWITCHING CONVERTER - A “windowless” H-bridge buck-boost switching converter includes a regulation circuit with an error amplifier which produces a ‘comp’ signal, a comparison circuit which compares ‘comp’ with a ‘ramp’ signal, and logic circuitry which receives the comparison circuit output and a mode control signal indicating whether the converter is to operate in buck mode or boost mode and operates the primary or secondary switching elements to produce the desired output voltage in buck or boost mode, respectively. A ‘ramp’ signal generation circuit operates to shift the ‘ramp’ signal up by a voltage Vslp(p−p)+Vhys when transitioning from buck to boost mode, and to shift ‘ramp’ back down by Vslp(p−p)+Vhys when transitioning from boost to buck mode, thereby enabling the converter to operate in buck mode or boost mode only, with no need for an intermediate buck-boost region. | 2014-03-27 |
20140084884 | LC SWITCHING REGULATORS - A switching regulator is used in a circuit having an inductor and one or more switches that control charges applied to the inductor from an input voltage source. The switching regulator has an error amplifier configured to generate an error voltage signal by amplifying a difference between a feedback output voltage and a reference voltage, an inductor current emulation circuit configured to generate an emulated inductor current signal that emulates an inductor current that flows through the inductor, an error voltage comparator configured to generate a timing pulse signal by comparing the error voltage signal to the emulated inductor current signal and a controller configured to modulate at least one switching intervals of the switches by control signals generated based on the timing pulse signal. | 2014-03-27 |
20140084885 | SWITCH MODE POWER SUPPLY, CONTROL CIRCUIT AND ASSOCIATED CONTROL METHOD - A switch mode power supply having an output terminal configured to provide an output voltage, the switch mode power supply has a first switch and a control circuit. The control circuit is configured to provide a switching control signal to turn ON and turn OFF the first switch, an on-time period of the first switch is proportional to a first value when the switch mode power supply works in a power saving mode, and the on-time period of the first switch is proportional to a second value when the switch mode power supply works in a normal mode, wherein the first value is larger than the second value. | 2014-03-27 |
20140084886 | CONVERTER AND METHOD - In accordance with an embodiment, a DC-DC converter is provided comprising a single regulation loop that drives a control circuit, wherein the control circuit selects between operation in a pulse width modulation operating mode and a pulse frequency modulation operating mode, the single regulation loop including a compensation loop, and wherein biasing of the compensation loop is maintained in response to selecting between the pulse width modulation and the pulse frequency modulation operating modes. | 2014-03-27 |
20140084887 | DC-DC SWITCHING REGULATOR WITH TRANSCONDUCTANCE BOOSTING - A switching regulator comprising a droop amplifier responsive to a reference voltage and a feedback voltage to generate a droop voltage. The droop amplifier includes a boost circuit configurable to increase a transconductance of the droop amplifier during an upward transition of the reference voltage. The switching regulator further includes a comparator responsive to the droop voltage and a current sense signal. The comparator is configured to initiate switching in the switching regulator. | 2014-03-27 |
20140084888 | POWER SUPPLY CIRCUIT AND HYSTERESIS BUCK CONVERTER - A power supply unit converting a DC power supply using an inductor includes a feedback circuit dividing an output voltage being output from a first end of the inductor to convert the output voltage into a first feedback voltage; a differentiator differentiating the first feedback voltage to convert the first feedback voltage into a second feedback voltage; a hysteresis comparator comparing a level of the second feedback voltage with a reference voltage band to output a comparison signal; and a switch pulling an input voltage up or pulling the input voltage down to the second end of the inductor with reference to the comparison signal. | 2014-03-27 |
20140084889 | POWER SUPPLY DEVICE WITH SHARED INDUCTIVE ELEMENTS UNDER SWITCH CONTROL - A power supply device is responsive to load changes. The power supply device includes a switch control circuit, a charge control circuit, and a discharge control circuit. The switch control circuit controls switches so that electrical power is charged into an inductor, discharged from the inductor, and distributed to first and second capacitors in a time-division manner based on a switching cycle. The charge control circuit controls the amount of electrical power to be charged into the inductor based on a first amount of error between a first output power supply voltage and its target value and a second amount of error between a second output power supply voltage and its target value. The discharge control circuit controls a distribution ratio at which the electrical power discharged from the inductor is distributed to the first and second capacitors based on the ratio between the first and second amounts of error. | 2014-03-27 |
20140084890 | OUTPUT RIPPLE VOLTAGE CONTROL FOR A CAPACITIVE DC/DC CONVERTER - A switching direct current (DC)-to-DC converter includes a charge pump circuit with a flying capacitor ( | 2014-03-27 |
20140084891 | DC-DC CONVERTER - A DC-DC converter including a Pulse Width Modulation (PWM) controller for converting an input voltage into an output voltage is provided. The PWM controller includes a first comparator, receiving a compensated error signal and a ramp signal, wherein when the compensated error signal exceeds the ramp signal, the first comparator generates a trigger signal. The PWM controller further includes a PWM generator coupled to the first comparator, providing a timing signal according to the trigger signal to control the operation of the DC-DC converter. | 2014-03-27 |
20140084892 | PULSE WIDTH MODULATION POWER CONVERTER AND CONTROL METHOD - In a Pulse Width Modulation power converter and control method, wherein one of the operating modes steady state or load transient is detected. For either of the two operating modes one set of PID coefficients is provided for the control law that controls the duty ratio command. In case a load transient is detected, the KP gain is selected adaptively. Operating mode detection is supported by oversampling the error signal. | 2014-03-27 |
20140084893 | POWER SUPPLY CIRCUIT - Disclosed is a power supply circuit of an electric device. The power supply circuit comprises a power source configured to output a power source voltage; a power source voltage detecting circuit configured to detect the power source voltage, and to output a first voltage control signal; a leading edge delay circuit configured to receive the first voltage control signal, and to output a second voltage control signal; an electronic switch connected in series between the power source and the load, configured to turn on or turn off power supply from the power source to the load; and a slow turn-on circuit configured to receive the second voltage control signal. | 2014-03-27 |
20140084894 | Direct Current Link Circuit - A device for converting power from a floating source of DC power to a dual direct current (DC) output, the device includes: positive and negative input terminals connectible to the floating source of DC power; and positive and negative, and ground output terminals connectible to the dual DC output that may feed an inverter. The inverter may be either a two or three level inverter. A charge storage device may be connected in parallel to, and charged from, the positive and negative input terminals. A resonant circuit may be also connected between the charge storage device and the dual DC output. The resonant circuit may include an inductor connected in series with a capacitor. The charge storage device may discharge through the resonant circuit by switching through to either the negative output terminal or the positive output terminal. | 2014-03-27 |
20140084895 | METHOD FOR PERFORMING REFRESHING CONTROL OF A DC-TO-DC CONVERTER, AND ASSOCIATED APPARATUS - A method for performing refreshing control of a direct current (DC)-to-DC converter includes: monitoring at least one duration of a control signal of a switching unit of the DC-to-DC converter to determine a statistics result, the duration corresponding to a duty cycle of the control signal; and based upon the statistics result, performing refreshing control on a bootstrap capacitor within the DC-to-DC converter. In particular, the step of monitoring the duration of the control signal of the switching unit of the DC-to-DC converter to determine the statistics result further includes monitoring whether a length of the duration falls within a predetermined range, wherein the statistics result represents a number of times that the length of the duration falls within the predetermined range. For example, the statistics result represents the number of times that the length of the duration successively falls within the predetermined range. An associated apparatus is also provided. | 2014-03-27 |
20140084896 | LOW POWER LOW DROPOUT LINEAR VOLTAGE REGULATOR - Embodiments of a linear voltage regulator are described. In one embodiment, the linear voltage regulator includes a PMOS low drop-out (LDO) regulator configured to convert an input voltage to a regulated voltage, a charge pump connected to the PMOS LDO regulator and configured to amplify the regulated voltage into an amplified voltage, and an NMOS LDO regulator connected to the charge pump and configured to convert the amplified voltage into an output voltage. Other embodiments are also described. | 2014-03-27 |
20140084897 | Current Detection Device and Buck-Boost DC-DC Converter Using the Same - A current detection device for a buck-boost DC-DC converter is disclosed. The current detection device comprises a detecting terminal coupled to two low-side transistors of the buck-boost DC-DC converter, and only one current sensing unit for detecting a current flowing through the detecting terminal, to detect an output current of the buck-boost DC-DC converter. | 2014-03-27 |
20140084898 | STEP DOWN CONVERTER - A step down DC converter includes a switch, one end of the switch is coupled to a DC voltage source, and the other end of the switch is coupled to a first inductor and a first diode which serial coupled to the first inductor. The converter further includes an auto charge pump circuit which is coupled to the first inductor and the first diode and provides an output current to a load. | 2014-03-27 |
20140084899 | PRECISION REFERENCE CIRCUIT AND RELATED METHOD - In one form, a reference circuit includes a measurement circuit and a determination circuit. The measurement circuit has an output for providing a ratio of a difference in base-to-emitter voltage (V | 2014-03-27 |
20140084900 | LOW-CONSUMPTION AND HIGH-EFFICIENCY ENERGY-SCAVENGING INTERFACE, METHOD FOR OPERATING THE ENERGY-SCAVENGING INTERFACE, AND SYSTEM COMPRISING THE ENERGY-SCAVENGING INTERFACE - An energy-scavenging interface receives an input signal from a transducer and supplies an output signal to a load. A switch is connected between the transducer and a reference node, and a diode is connected between the transducer and the load. A control circuit closes the switch for a time interval to permit energy storage in the transducer. A scale copy of a peak value of stored electric current is obtained. The switch is opened when the time interval elapses and the stored energy exceeds a threshold. The stored energy is then released to supply the load through the diode. The switch remains open as long as the value of current in the output signal exceeds the value of the scaled copy of the peak value. | 2014-03-27 |
20140084901 | Hand tool having a pivot grip for sensing measurements behind a target surface - An implementation of a system and method for a hand tool having a pivot grip is provided. The pivot grip provides an axis of rotation perpendicular to and centered with a pair of concave finger holds positioned at the grip. The hand tool includes a housing forming the pivot grip, a sensor (e.g., stud sensor, capacitive sensor, electromagnetic sensor, metallic sensor, RF sensor, and/or the like) and a power switch. | 2014-03-27 |
20140084902 | MEASUREMENT APPARATUS - A measurement apparatus for surface analysis carried out in a gaseous environment such as air comprises a measurement device capable of measuring a contact potential difference between a probe and a surface, and a light source that triggers photoelectric emission from a sample. The apparatus may operate in “dual” photoemission and contact potential difference (CPD) measurement modes. | 2014-03-27 |
20140084903 | Apparatus and Method for Providing an Output Signal Indicative of a Speed of Rotation and a Direction of Rotation of a Ferromagnetic Object - An apparatus and a method provide an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object capable of rotating. A variety of signal formats of the output signal are described. | 2014-03-27 |
20140084904 | Apparatus and Method for Providing an Output Signal Indicative of a Speed of Rotation and a Direction of Rotation of a Ferromagnetic Object - An apparatus and a method provide an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object capable of rotating. A variety of signal formats of the output signal are described. | 2014-03-27 |
20140084905 | METHOD OF ROBUST POSITION MEASUREMENT - A method of improving linear position sensing of clutch actuators with magnetic field sensors utilizes a dedicated magnetic field sensor solely to detect the ambient magnetic field. Typical three position hydraulic clutch actuators include a pair of active magnetic field sensors, one of such active sensors associated with each of a pair of pistons in such actuator and an adjacent pair of permanent magnets, one of such magnets associated with each of such pistons. The invention provides an additional magnetic field sensor disposed proximate the active magnetic field sensors which senses the surrounding (stray, background or parasitic) magnetic field proximate the active magnetic field sensors and provides a signal to an electronic circuit or software which actively and in real time corrects the signals from the active magnetic field sensors by cancelling out the magnitude of the stray magnetic field as detected by the additional sensor. | 2014-03-27 |
20140084906 | MAGNETIC FIELD SENSOR SYSTEM WITH A BIASING MAGNET PRODUCING A SPATIALLY SYMMETRIC MAGNETIC FIELD WITHIN A PLANE BEING DEFINED BY MAGNETORESISTIVE SENSOR ELEMENTS - A magnetic field sensor system for measuring rotational movements of a shaft is disclosed. The sensor system includes a biasing magnet configured for generating a biasing magnetic field and a magnetic wheel having a wheel axis and a circumferential surface which comprises a regular structure of teeth and gaps arranged in an alternating manner. The magnetic wheel is attachable to the shaft and is magnetizable by the biasing magnetic field. A magnetoresistive sensor arrangement comprising four magnetoresistive sensor elements being connected with each other in a Wheatstone bridge, respectively two of the magnetoresistive sensor elements being assigned to one half bridge of the Wheatstone bridge. The four magnetoresistive sensor elements are arranged within an x-y plane. | 2014-03-27 |