10th week of 2015 patent applcation highlights part 26 |
Patent application number | Title | Published |
20150061545 | METHOD AND APPARATUS FOR CONTROLLING LIGHTING - A lighting control method and an electronic device using the same are provided. The method includes receiving pattern information for controlling lighting, generating lighting control information including brightness level information corresponding to operation time information based on the received pattern information, and transmitting the lighting control information. | 2015-03-05 |
20150061546 | TWO-OUTLET DIGITAL TIMER - A programmable timer for controlling two outlets that may be switched on and off in response to a programmed schedule where said programmable timer comprises an input device, a microprocessor, two switches and two outlets. | 2015-03-05 |
20150061547 | Locking and Synchronizing Controller for Hall-sensor Driven Motors - Disclosed embodiments include a method for locking and synchronizing Hall-sensor driven motors electronically. A programmable integrated circuit microcontroller is positioned between the Hall-sensors and the motor drivers. The microcontroller is programmed to receive signals from the Hall sensor, mitigate the errors introduced due to uneven magnetization and sensor misalignments, and then synchronize/lock the angle and speed of the motors such that the motors operate as if on a common shaft. | 2015-03-05 |
20150061548 | VIBRATION GENERATING DEVICE - A vibration generating device includes a motor having a rotation shaft, a rotating body attached to the rotation shaft, a rotation control unit configured to control rotation of the motor, and magnetic generating unit which is disposed at a non-contact position with the rotating body. The rotating body has the center of gravity positioned on an axis of the rotation shaft, is formed of a magnetic material, and generates vibration by a magnetic attraction force applied to the magnetic material by a magnetic field from the magnetic generating unit when the rotating body is rotated. | 2015-03-05 |
20150061549 | BATTERY PACK, POWER TOOL AND BATTERY CHARGER - A battery pack includes: a plus terminal and a minus terminal; a secondary battery; and a booster. The secondary battery has a rated voltage and is configured to output a battery voltage across the plus terminal and the minus terminal. A charging device and a discharging device are selectively connectable to the plus terminal and the minus terminal. The charging device charges the secondary battery. The discharging device performs a job with the battery voltage supplied from the secondary battery. The booster is configured to boost the battery voltage to a voltage greater than the rated voltage. The voltage boosted is used as a control voltage for either connecting the secondary battery to or disconnecting the secondary battery from the charging device or the discharging device. | 2015-03-05 |
20150061550 | Method for electrically regenerating an energy store - A method for electrically regenerating an electrical energy store in a motor vehicle which includes a recuperation device and/or other energy-saving devices, including the following: based on information concerning an upcoming travel route, it is ascertained whether a suitable opportunity exists for an electrical regeneration on the upcoming travel route, and when this is the case: a first energy loss is determined which occurs during the electrical regeneration; a second energy loss is determined which results on a plurality of previously determined and defined routes due to aging effects of the energy store which are reversible with the aid of regeneration; the first energy loss and the second energy loss are compared, and a regeneration is carried out only when the second energy loss is greater than the first energy loss. | 2015-03-05 |
20150061551 | FAN SYSTEM - SINGLE-PHASE DC MOTOR CONTROL CIRCUIT AND CONTROL METHOD THEREOF - A signal-phase DC motor control circuit is disclosed. The signal-phase DC motor control circuit includes a logic circuit, a switching circuit and a driving circuit. The logic circuit transmits a first logic signal, a second logic signal, a third logic signal and a forth logic signal. The switching circuit transmits a first direction driving signal according to a PWM signal and the first logic signal, and transmits a second direction driving signal according to the PWM signal and the second logic signal. The driving circuit transmits a first output signal according to the first direction driving signal and the fourth logic signal, and transmits a second output signal according to the second direction driving signal and the third logic signal. The first output signal and the second output signal are positive half-wave sinusoidal wave, and the phase difference between the first output signal and the second output signal is 180 degrees. | 2015-03-05 |
20150061552 | MOTOR DRIVING DEVICE - A motor driving device includes a microcomputer, a command voltage adjusting circuit, and a driving IC. The command voltage adjusting circuit converts a first command voltage signal from the microcomputer to a second command voltage signal. The driving IC generates a drive pulse based on the second command voltage signal. An upper and a lower limit of an input voltage range of the driving IC are larger than an upper and a lower limit of a voltage range of the first command voltage signal, respectively. | 2015-03-05 |
20150061553 | APPARATUS AND METHOD FOR DETECTING BACK ELECTRO-MOTIVE FORCE IN SENSORLESS MOTOR - There are provided an apparatus and a method for detecting back electro-motive force (EMF) in a motor. The apparatus includes: a mode selecting unit selecting between an amplification mode and a bypass mode when power is on; a back EMF amplifying unit amplifying a back EMF voltage from the motor during an initial driving period if the amplification mode is selected by the mode selecting unit, and allowing the back EMF voltage to bypass it after the initial driving period if the bypass mode is selected by the mode selecting unit; and a zero-crossing detecting unit detecting a zero-crossing of an output signal from the back EMF amplifying unit, wherein the back EMF amplifying unit amplifies the back EMF voltage to a level detectable by the zero-crossing unit or higher. | 2015-03-05 |
20150061554 | MOTOR CONTROL APPARATUS - A motor control apparatus has an inverter circuit having a plurality of pairs of upper and lower arms provided so as to correspond to a number of phases, and switching elements provided on each of the upper arms and the lower arms of each phase that drive a motor on the basis of ON or OFF operations of the respective switching elements, a single current detector that detects a current of the motor flowing through the inverter circuit, and a duty calculator that calculates duties of PWM signals for turning the switching elements ON or OFF on the basis of a deviation between a current value of the current detected by the current detector and a target current value. | 2015-03-05 |
20150061555 | MOTOR CONTROL APPARATUS - A motor control apparatus has an inverter circuit having a plurality of pairs of upper and lower arms provided so as to correspond to the number of phases, and switching elements provided on each of the upper arms and the lower arms of each phase that drive a motor on the basis of ON or OFF operations of the respective switching elements, a single current detector that detects a current of the motor flowing through the inverter circuit, and a duty calculator that calculates duties of a PWM signals for turning the switching elements ON or OFF on the basis of a deviation between a current value of the current detected by the current detector and a target current value. | 2015-03-05 |
20150061556 | METHOD OF CONTROLLING AN ELECTRICAL MACHINE - A method of controlling an electrical machine. The electrical machine includes a stator having a core and a plurality of windings, and a rotor disposed adjacent to the stator to interact with the stator. The method includes configuring an amplitude value and frequency values of a three-phase alternating current (AC) voltage startup signal having an amplitude and a frequency, providing the three-phase alternating current (AC) voltage startup signal to the plurality of windings, and altering the frequency of the three-phase AC voltage startup signal according to a preprogrammed frequency ramp function defined by the frequency values. The method further includes discontinuing the three-phase AC voltage startup signal after the frequency ramp function has completed, and switching to a back electromotive force (BEMF) control mode after discontinuing the three-phase AC voltage startup signal. | 2015-03-05 |
20150061557 | ELECTRIC MOTOR CONTROL DEVICE AND ELECTRIC MOTOR CONTROL METHOD - An electric motor control device includes: a motor constant generator configured to generate a motor constant by using a temperature; a current control unit configured to generate a current command value to an electric motor based on the motor constant and a torque command value and execute a current control mode; a voltage phase control unit configured to calculate a torque estimation value of the electric motor and execute a voltage phase control mode in which a feedback operation is performed for a voltage phase based on the difference between the torque estimation value and the torque command value; and a control mode switching unit configured to switch to the voltage phase control mode in a high rotation area where a flux weakening control is performed. The torque estimation value is calculated using the motor constant common to generation of the current command value in the current control mode. | 2015-03-05 |
20150061558 | ELECTRIC COMPRESSOR - An electric compressor capable of discharging electric charges of a capacitor is provided. The electric compressor includes: a compressing unit; an electric motor for rotating the compressing unit; a driving circuit for driving the electric motor; a housing for accommodating the compressing unit and the electric motor; and an inverter cover for accommodating the driving circuit. An outline of the electric compressor is formed by the housing and the inverter cover. The driving circuit includes: an inverter circuit for receiving electric power from a power supply line; a capacitor circuit connected between the power supply line and a ground line; and an electrically discharging circuit, connected to the capacitor circuit, for discharging electric charges accumulated in the capacitor circuit. The electric compressor further includes a capacitor cover, disposed inside the inverter cover, for encompassing and accommodating at least the capacitor circuit and the electrically discharging circuit. | 2015-03-05 |
20150061559 | MOTOR CONTROLLER - The outputs from a first magnetic detector and a second magnetic detector are supplied to first to fourth output circuits which are differential amplifiers, whereby first and second detected outputs which are analogous to a sine wave and whose positive-negative polarities are opposite to each other, and third and fourth detected outputs which are analogous to a cosine wave and whose positive-negative polarities are opposite to each other are obtained. The first to fourth detected outputs are supplied to a switching circuit, and detected output portions are obtained at intervals of 90° from the first to fourth detected outputs. A bias adding circuit applies a bias voltage to each of the detected output portions to obtain an angle detection output analogous to a linear function. The angle detection output is used to determine the supply timing at which a three-phase driving current is supplied. | 2015-03-05 |
20150061560 | WASHING MACHINE AND CONTROL METHOD THEREOF - A washing machine and a control method thereof capable of determining whether a driving motor is locked. A pulsator is rotatably mounted in a spin basket, a driving motor generates rotational force, a clutch transmits the rotational force to the pulsator or the spin basket, a driving circuit supplies a driving current to the driving motor, and a control unit controls the driving circuit and the clutch so that the pulsator rotates in a forward or reverse direction and rotation of the spin basket is stopped in a washing or rinsing process. The control unit controls the driving circuit so that a motor lock detection current is supplied to the driving motor, and controls the clutch so that, if a rotating speed of the driving motor is less than a reference speed, the rotational force is transmitted only to the pulsator. | 2015-03-05 |
20150061561 | MOTOR CONTROL DEVICE - The motor control device is an electric motor control device including a control unit (control circuit unit) configured to output a forward-rotation command or a reverse-rotation command to the electric motor. The control unit includes a position detector (door opening/closing information generation circuit) configured to detect a rotation direction of the electric motor when a detection signal is input from a rotation sensor (Hall integrated circuit (IC)), which detects the rotation of the electric motor, while no current is supplied to the electric motor. The control unit includes an electric current supply device (pulse width modulation (PWM) command generation circuit) configured to supply an electric current by which the electric motor is rotated in an opposite direction to the detected rotation direction by increasing an electric current supply duty ratio every time the detection signal is switched. | 2015-03-05 |
20150061562 | MOTOR DRIVE UNIT - A motor drive unit includes a motor drive circuit that drives a motor by controlling on/off of current, a control unit generating a drive command signal for driving the motor, a current feedback circuit with the motor and outputs a comparison output signal based on comparison between a current detection signal of a motor current and a target value signal, a latch circuit that latches a current detection result based on the drive command signal and the comparison output signal, and a gate circuit for driving the motor drive circuit based on the drive command signal and a latch output signal output from the latch circuit. The control unit detects a failure of a current feedback system including the current feedback circuit and the latch circuit according to a state of the latch output signal inputted after a time measured based on the drive command signal reaches a predetermined time. | 2015-03-05 |
20150061563 | METHOD AND APPARATUS FOR MONITORING ROTATIONAL POSITION OF AN ELECTRIC MACHINE - A method for monitoring an electric motor employing a pulse-type rotational position sensor includes monitoring a signal output from the pulse-type rotational position sensor and a reference signal associated with a control signal for the electric motor. A position of a rotor of the electric motor coincident with the reference signal is determined based upon a nominal rotor position, a nominal rotational speed of the rotor and a time between the reference signal and a falling edge of the signal output from the pulse-type rotational position sensor. The electric motor is controlled based upon the position of the rotor. | 2015-03-05 |
20150061564 | MOTOR CONTROL DEVICE - A command value generating circuit determines an acceleration profile indicating changes in acceleration of a mechanical load over time. The acceleration profile is determined such that the mechanical load is accelerated from a stop at a first position to a peak velocity, and is decelerated from the peak velocity to stop at a second position, and that the absolute value of an acceleration during accelerating and decelerating the mechanical load is equal to or less than an upper limit acceleration, and that the acceleration is maintained at the upper limit acceleration for a period of time from starting to accelerate the mechanical load, and then, gradually decreased from the upper limit acceleration. The command value generating circuit determines a velocity profile indicating changes in the velocity of the mechanical load over time, according to the acceleration profile, and generates a position command value, according to the velocity profile. | 2015-03-05 |
20150061565 | METHOD AND APPARATUS FOR IMPROVING GIMBAL STABILITY - Enhanced stability for infrared countermeasure systems is provided by using a pair of single axis rate sensors having orthogonal active axes, preferably aligned with the elevation axis and the azimuth axis of the gimbal. The outputs of the orthogonal single axis rate sensors are used to detect instantaneous aircraft angular movement and to use the detected movement to drive the elevation and azimuth motors of the gimbal to move the output mirror for the gimbal to cancel the detected movement. | 2015-03-05 |
20150061566 | CONTROL CIRCUIT FOR DRIVING MOTOR AND METHOD FOR CONTROLLING SPEED OF MOTOR - A control circuit for driving a motor and a method for controlling a speed of a motor are provided. The control circuit comprises a microcontroller and a drive circuit. The microcontroller has a memory. The drive circuit is configured to drive the BLDC motor according to a control of the microcontroller. The memory include a RPM table, and the microcontroller sends a duty signal to the drive circuit to change a speed of the motor according to the RPM table. | 2015-03-05 |
20150061567 | Vehicle with Electrical Machine and Method for Operating the Same - The invention relates to a vehicle having a multiphase electric machine, comprising a first onboard power subsystem provided with a first nominal DC voltage level, and a second onboard power subsystem provided with a second nominal DC voltage level, wherein the electric machine comprises a rotor, a first stator system, and a second stator system. The first onboard power subsystem comprises a first inverter having a first intermediate circuit capacitor. The first stator system is dedicated to the first inverter. The second onboard power subsystem comprises a second inverter having a second intermediate circuit capacitor, and the second stator system is dedicated to the second inverter. The first stator system is configured in a star connection, the second stator system is configured in a star connection, and a transfer circuit connects the star point of the first stator system to the star point of the second stator system. | 2015-03-05 |
20150061568 | Portable Solar-Powered Generator - An improved portable solar-powered generator is disclosed herein. Specifically, an improved portable solar-powered generator comprises a plurality of solar panels capable of absorbing and converting photons into direct current energy, wiring attached to solar panels capable of outputting direct current energy from solar panels, and a controller capable of receiving direct current energy by wiring transferred from solar panels, as the controller can be capable of receiving, measuring and distributing the electrical load of the direct current. The improved portable solar-powered generator further comprises a battery receiving direct current energy from the solar panels by way of controller, as the battery can be capable of storing and transferring direct current energy. Additionally, an improved solar powered generator comprises an analog to digital converter capable of converting the direct current energy received from the battery into alternating current. Finally, an improved solar powered generator further comprises a plurality of power outlets capable of adapting the transfer of alternating current to external appliances and a covering, in which solar panel, controller, battery, analog to digital converter and power outlets are affixed together as a unibody. | 2015-03-05 |
20150061569 | METHODS, SYSTEMS, AND DEVICES FOR IMPROVED ELECTRIC VEHICLE CHARGING - A car charging station in which battery buffering includes at least approximately as much energy as is required to charge one car rapidly. This is particularly advantageous when a photovoltaic array is connected through a power converter to charge the battery, and also to provide a lower rate of charge directly to the vehicle charge connections. Advantageously, a mains power connection can also be made through yet another port of the same multiport power converter. | 2015-03-05 |
20150061570 | High Temperature Sodium Battery with High Energy Efficiency - A molten sodium secondary cell charges at a high temperature and discharges at a relatively lower temperature. The cell includes a sodium anode and a cathode. A sodium ion conductive solid membrane separates the cathode from the sodium anode and selectively transports sodium ions. A solar energy source includes a photovoltaic system to provide an electric charging potential to the sodium anode and the cathode and a solar thermal concentrator to provide heat to the cathode and catholyte composition to cause the molten sodium secondary cell to charge at a temperature in the range from about 300 to 800° C. The cell has a charge temperature and a charge voltage and a discharge temperature and a discharge voltage. The charge temperature is substantially higher than the discharge temperature, and the charge voltage is lower than the discharge voltage. | 2015-03-05 |
20150061571 | STORING AND CHARGING APPARATUS - A storing and charging apparatus includes a housing including two storage racks mounted in an accommodation chamber therein and respectively defining a plurality of vertically spaced storage compartments for storing mobile electronic devices, a partition panel set in between the two storage racks to hold a plurality of connection ports, two U-shaped sliding tracks disposed at two opposite lateral sides of the accommodation chamber and an access opening, a sliding door coupled to and movable along the U-shaped sliding tracks to close/open an access opening, and a power module mounted in a rear side in the accommodation chamber of the housing. | 2015-03-05 |
20150061572 | BATTERY PACK, APPARATUS HAVING THE SAME AND METHOD OF CONTROLLING BATTERY - A battery pack includes a battery coupled between a first terminal and a second terminal and a battery manager configured to sense a state of charge of the battery; a load circuit coupled between the first terminal and the second terminal and configured to receive discharge power from the battery; a power generator coupled between the first terminal and the second terminal and configured to supply charge power to the battery; and a controller configured to control the battery pack and the power generator and to force discharging of the battery to make the state of charge of the battery equal to a reference value when a signal to initiate self-discharging is received from a user. | 2015-03-05 |
20150061573 | POWER STORAGE SYSTEM, POWER STORAGE CONTROL DEVICE, AND POWER STORAGE CONTROL METHOD - There is provided a power storage system including at least two battery units mutually connected in parallel, the battery units each including at least one cell and at least one monitor device configured to monitor a charge state, at least one battery charger configured to supply charge current to each of the battery units, and at least one power storage control device configured to control a charge current value that is supplied to each of the battery units. The power storage control device is configured to decrease the charge current value in accordance with the charge state of each of the battery units. | 2015-03-05 |
20150061574 | CHARGER - A charger for charging a first device and a second device includes a current output unit, a switching unit, an identification unit, and a control unit. The identification unit identifies the first device and the second device, and outputs identification signals accordingly. The control unit is coupled to the current output unit, the switching unit, and the identification unit. The control unit controls the current output unit to output a first charging current or a second charging current according to the identification signals, and controls the switching unit to establish a first current path or a second current path between the current output unit and the first device according to the identification signals. | 2015-03-05 |
20150061575 | METHOD AND APPARATUS FOR CHARGING A BATTERY - An electronic device is provided that includes: a terminal unit including a first terminal and a second terminal; a driver configured to provide one of a first signal and a second signal to the first terminal, the first signal having a first current level and the second signal having a second current level; and a driving controller configured to cause the driver to detect, at the second terminal, a third signal having the same current level as the first signal, and cause the driver to provide the second signal to the first terminal in response to detecting the third signal. | 2015-03-05 |
20150061576 | VEHICLE POSITIONING FOR WIRELESS CHARGING SYSTEMS - A wireless vehicle charging system includes a charging station and an electric or hybrid passenger vehicle. The charging station is configured to wirelessly provide power to the passenger vehicle when the passenger vehicle is properly positioned in the charging station. The wireless vehicle charging system also includes a positioning system configured to guide the passenger vehicle into the charging station so that the passenger vehicle is properly positioned in the charging station to receive power from the charging station. | 2015-03-05 |
20150061577 | WIRELESS POWER TRANSMITTERS WITH WIDE INPUT VOLTAGE RANGE AND METHODS OF THEIR OPERATION - The embodiments described herein provide a power transmitter for wireless charging of an electronic device and methods of its operation. The power transmitter uses an inverter configured to generate a square wave from a potentially wide ranging DC input voltage. The inverter is configured to generate the square wave with a duty cycle that results in a desired equivalent voltage output, effectively independent of the DC input voltage that is provided. Thus, by generating a square wave with a selectable duty cycle the inverter provides the ability to facilitate wireless power transfer with a wide range of DC input voltages. Furthermore, in some embodiments the power transmitter may provide improved power transfer efficiency using a quasi-resonant phase shift control strategy with adjustable dead time and a matching network that is dynamically selectable to more effectively couple with the transmitter coil combination being used to transmit power to the electronic device. | 2015-03-05 |
20150061578 | SYSTEM AND METHOD FOR ALIGNMENT AND COMPATIBILITY DETECTION FOR A WIRELESS POWER TRANSFER SYSTEM - Systems, methods, and apparatuses for receiving charging power wirelessly are described herein. One implementation may include an apparatus for receiving charging power wirelessly from a charging transmitter having a transmit coil. The apparatus comprises a receiver communication circuit, coupled to a receive coil and to a load. The receiver communication circuit is configured to receive information associated with at least one characteristic of the charging transmitter. The apparatus further comprises a sensor circuit configured to measure a value of a short circuit current or an open circuit voltage associated with the receive coil. The apparatus further comprises a controller configured to compare the value of the short circuit current or the open circuit voltage to a threshold charging parameter set at a level that provides charging power sufficient to charge the load. The controller may be further configured to initiate receiving the charging power from the charging transmitter when the short circuit current or the open circuit voltage associated with the receive coil is greater than or equal to the threshold charging parameter. | 2015-03-05 |
20150061579 | POWER SUPPLY SIDE EQUIPMENT AND RESONANCE-TYPE NON-CONTACT POWER SUPPLY SYSTEM - Power supply side equipment comprises a high-frequency power supply, a matching box, a primary side resonance coil, an output impedance variable unit, a matching state detection unit, and a control unit. By a magnetic field resonance, the primary side resonance coil transmits power in a non-contact manner to a load through a secondary side resonance coil. At least the matching box, the primary side resonance coil, the secondary side resonance coil, and the load constitute a resonance system having a resonant frequency. The matching state detection unit detects the matching state between the input impedance of the resonance system and the output impedance of the high-frequency power supply at the resonant frequency. The control unit adjusts the output impedance variable unit and the matching box according to the detection result by the matching state detection unit so that the input impedance of the resonance system and the output impedance of the high-frequency power supply match each other. | 2015-03-05 |
20150061580 | ELECTRIC POWER TRANSMISSION SYSTEM - A power transmission system for transmitting electrical energy from a transmission antenna to a reception antenna via an electromagnetic field, including: an inverter for converting DC voltage into AC voltage having a prescribed frequency and outputting the AC voltage; a transmission-side control unit for performing a control for keeping the drive frequency of the inverter at a prescribed frequency, controlling the voltage of the DC voltage inputted into the inverter, and controlling to keep the power value outputted from the inverter constant; a transmission antenna into which the inverter inputs the AC voltage; a rectifier for rectifying the output from the reception antenna into DC voltage; a step-up/step-down unit for stepping up or down and then outputting the DC voltage from the rectifier; a battery charged by the output from the step-up/step-down unit; and a reception-side control unit for controlling the step-up/step-down unit and charging the battery most efficiently. | 2015-03-05 |
20150061581 | INDUCTIVELY CHARGEABLE BATTERIES - An inductive power transfer system for charging batteries may include an inductive power transmitter, an inductive power receiver and an electrochemical cell or battery. The inductive power receiver may include a secondary inductor incorporated in enabled batteries or battery packaging, which when inductively coupled to a primary inductor of an inductive transmitter is operable to supply a potential across the electrochemical cell or battery thereby enabling the cell or battery to be charged or maintained at a charged level. The inductive battery may be in the shape of an industry standard battery. | 2015-03-05 |
20150061582 | POWER SUPPLY APPARATUS - A power supply apparatus capable of appropriately supplying electrical power to a power transmission coil even if a foreign object is heated during power supply. The power supply apparatus ( | 2015-03-05 |
20150061583 | VEHICLE - A vehicle includes a power receiving portion that is mounted below a floor panel and that receives electric power in a contactless manner from a power transmitting portion provided outside the vehicle, an electromagnetic shield that prevents an electromagnetic field from passing through, a power receiving portion cover that allows the electromagnetic field to pass through and covers the power receiving portion, and an undercover that allows the electromagnetic field to pass through and covers the power receiving portion cover. | 2015-03-05 |
20150061584 | COMMUNICATION SYSTEM, CHARGING CONTROL DEVICE, VEHICLE AND POWER SUPPLY DEVICE - A communication system, a charging control device, a vehicle, and a power supply device are provided, which prevent noise from flowing into a communication device which transmits and receives a communication signal, in communication such as inband communication in which the vehicle and the power supply device are connected via a charging cable containing a power supply line, a grounding line, and a control line, and the communication signal is transmitted and received by using the grounding line and the control line as media. There are provided: a charging control device connected to a grounding line and a control line, and configured to transmit and receive a control signal; a communication device connected to two branch lines branched from the grounding line and the control line, respectively; and a common mode choke coil interposed in the grounding line and the control line, and located between the charging control device and two branch lines. | 2015-03-05 |
20150061585 | CONTACTLESS FEEDING PAD AND CONTACTLESS FEEDING DEVICE - A contactless feeding pad includes a power-receiving side pad, a power-transmitting side pad, and an auxiliary pad. The power-transmitting side pad is different from the power-receiving side pad in size or shape and transmits electric power contactlessly to the power-receiving side pad while being situated oppositely to the power-receiving side pad. The auxiliary pad is installed between the power-transmitting side pad and the power-receiving side pad in close proximity to the power-transmitting side pad or the power-receiving side pad and forms a resonance circuit. | 2015-03-05 |
20150061586 | CHARGING DEVICE AND METHOD USING DUAL-MODE MAGNETIC COUPLING FOR AN AUTOMOBILE VEHICLE | 2015-03-05 |
20150061587 | Method And Device For Communication With A Personal Electronic Device In An Aircraft - A communication module includes a communication module, having an inductive energy transfer unit, a transfer driver coupled to the inductive energy transfer unit and configured to generate driver signals for operating the inductive energy transfer unit, a charging processor coupled to the transfer driver and configured to control the inductive energy transfer unit to operate in an inductive power charging operation mode, and a communication processor coupled to the transfer driver and configured to control the inductive energy transfer unit to operate in a near field communication (NFC), operation mode. | 2015-03-05 |
20150061588 | Power Management for Inductive Charging Systems - Power management and power transfer systems within the transmit and receive portions of an inductive charging system. An inductive charging system may include an inductive charging station to transmit power and a portable electronic device to receive power. Embodiments may take the form of power transfer systems within an inductive charging station including load-based transmit frequency adjustments. Embodiments may also take the form of power management systems within portable electronic devices which conserve power by disconnecting circuits from ground when those circuits are in an idle state. | 2015-03-05 |
20150061589 | INTEGRATED INDUCTIVE CHARGING IN PROTECTIVE COVER - Accurate and reliable techniques for wirelessly powering a tablet device are disclosed. | 2015-03-05 |
20150061590 | ADAPTIVE WIRELESS ENERGY TRANSFER SYSTEM - Exemplary embodiments are directed to wireless power transfer using magnetic resonance in a coupling mode region between a charging base (CB) and a remote system such as a battery electric vehicle (BEV). The wireless power transfer can occur from the CB to the remote system and from the remote system to the CB. Load adaptation and power control methods can be employed to adjust the amount of power transferred over the wireless power link, while maintaining transfer efficiency. | 2015-03-05 |
20150061591 | WIRELESS POWER SYSTEM - A wireless power system capable of transmitting power through the skin over distances ranging from a few inches to several feet includes an external transmitting coil assembly and a receiving coil assembly. A transmitting resonant coil and a receiving resonant coil are constructed as to have closely matched or identical resonant frequencies so that the magnetic field produced by the transmitting resonant coil is able to cause the receiving resonant coil to resonate strongly also, even when the distance between the two resonant coils greatly exceeds the largest dimension of either coil. The receiving resonant coil then creates its own local time varying magnetic field, which inductively produces a voltage to provide power to an active implantable medical device or implantable rechargeable battery. | 2015-03-05 |
20150061592 | VEHICLE-MOUNTED APPARATUS, CHARGER/DISCHARGER, AND CHARGE/DISCHARGE SYSTEM - A vehicle-mounted apparatus comprising: a communication unit which is connected to the charger/discharger and exchanges information with the charger/discharger; an input unit receiving various types of information; a storage unit which uses the information acquired through the input unit and the communication unit to store: a vehicle ID identifying the vehicle; a charger/discharger ID identifying the charger/discharger which can be connected to the vehicle; and history information indicating a history of charges and discharges for the vehicle, which are related to one another; and a presentation unit presenting to a user of the vehicle, the history information stored in the storage unit in relation to a pair of the vehicle ID and the charger/discharger which charges/discharges the vehicle and is identified by the charger/discharger ID. | 2015-03-05 |
20150061593 | COIL UNIT AND ELECTRIC VEHICLE - A coil unit for an electric vehicle for the inductive transfer of electrical energy between the coil unit and a stationary charging station. The coil unit includes at least one coil and a flux guide unit for guiding a magnetic flux occurring during operation of the coil. Also disclosed is an electric vehicle having a coil unit for the inductive transfer of electrical energy between a secondary coil of the coil unit and a primary coil of a charging station. The disclosed coil solves the problem of allowing the safe use of the inductive electrical energy transfer in electric vehicles, in particular motor vehicles, by proposing a coil unit, in which the flux guide unit has material weakenings, and an electric vehicle having such a coil unit. | 2015-03-05 |
20150061594 | METHOD FOR CONTROLLING CHARGING OF A HYBRID OR ELECTRIC VEHICLE - A method and system are provided for controlling a lock state of a charging cable connected to a power inlet of an electrical vehicle. The vehicle includes an energy storage device electrically connected to the power inlet, a lock unit for locking the charging cable to the power inlet, and a control unit for controlling a lock state of the lock unit. | 2015-03-05 |
20150061595 | BATTERY PROTECTION SYSTEM AND BATTERY PROTECTION METHOD USING THE SAME - A battery protection system includes a first battery, a first line coupled to a first electrode of the first battery, and a second line coupled to a second electrode of the first battery, the first and second electrodes being of opposite polarity, a measurement unit measuring a voltage at first and second measurement terminals, the first measurement terminal being connected to the first electrode by the first line, the second measurement terminal being connected to the second electrode by the second line, and a protection unit controlling a voltage of the first battery according to a generated voltage, the generated voltage being determined by adjusting the measured voltage according to a first voltage drop across the first line, a second voltage drop across the second line, or both the first voltage drop and the second voltage drop. | 2015-03-05 |
20150061596 | GRIPPER ASSEMBLY FOR BATTERY CHARGING AND DISCHARGING - Provided is a gripper assembly for battery charging/discharging, which is electrically connected to a battery electrode to apply current during battery charging/discharging operation, the gripper assembly including a first electrode lead gripper including a first electrode gripper body disposed to correspond to a first electrode lead of the battery, and a first contact member coupled to one side of the first electrode gripper body and pressed to contact a surface of the first electrode lead and a second electrode lead gripper including a second electrode gripper body disposed to correspond to a second electrode lead of the battery, and a second contact member coupled to a side of the second electrode gripper body and attached to contact a surface of the second electrode lead. | 2015-03-05 |
20150061597 | BATTERY MANAGEMENT SYSTEM AND METHOD - A system includes a plurality of units and a transformer. Each of the plurality of units has an energy storage element, a branch switch and a branch diode. The transformer has a primary side and a secondary side and functions as an equalizer for at least one of charging and discharging the energy storage elements to achieve equalization. The plurality of units are connected to the primary side through a control switch and isolated from a secondary circuit connected to the secondary side. | 2015-03-05 |
20150061598 | MCM-48 SILICA PARTICLE COMPOSITIONS, ARTICLES, METHODS FOR MAKING AND METHODS FOR USING - There is a composition comprising mesoporous silica particles. The particles may have a MCM-48 three-dimensional framework and be characterized by having a surface area of about 300 to 2,000 square meters per gram, a pore volume of about 0.5 to 1.5 cubic centimeters per gram, an average pore diameter dimension of about 1 to 20 nanometers, and an average particle size of about 5 to 2,000 nanometers based on the average diameter of the silica particles. There is also a lithium-sulfur cell comprising an article comprising mesoporous silica particles. The cell also comprises a negative electrode, a circuit coupled with the negative electrode, a lithium-containing electrolyte medium and an interior wall of the cell. There are also associated methods of making and methods of using the silica particles and the cell. | 2015-03-05 |
20150061599 | PORTABLE ELECTRONIC APPARATUS - A portable electronic apparatus includes a terminal, a grip portion and a controller. A first battery is provided inside the terminal. The grip portion is positioned outside of the terminal and includes a second battery unit electrically connected to the terminal. The controller controls the second battery unit to supply power to the terminal before power of the first battery unit is supplied to the terminal. Accordingly, the controller first supplies the power of the second battery unit to the terminal rather than the power of the first battery unit. | 2015-03-05 |
20150061600 | WATER REACTIVE HYDROGEN FUEL CELL POWER SYSTEM - A hydrogen fuel cell system includes devices and methods to combine reactant fuel materials and aqueous solutions to generate hydrogen. The fuel cell system includes a fuel cell, a fuel cartridge, and a supply of pressurized aqueous solution to generate power for portable power electronics. The fuel cartridge includes a top cap with an overmolded face seal gasket that provides an offset injection point on the fuel cartridge. The aqueous solution is delivered into the fuel cartridge to generate hydrogen for the fuel cell which then produces power for the user of the electronics. | 2015-03-05 |
20150061601 | DISCHARGE DEVICE FOR ELECTRICITY STORAGE DEVICE - A battery-condition monitoring device that monitors a condition of the battery through discharge thereof includes a discharger and a discharge control device. The discharger includes a discharge circuit having a load resistor and a switching element connected in series between a positive electrode of the battery and a negative electrode thereof. The discharge control device controls an open/close operation of the switching element. The discharge control device adjusts the resistance value of the load resistor in the discharger, thereby enabling an adjustment of a discharge current. | 2015-03-05 |
20150061602 | Electrochemical Cell with Magnetic Sensor - In accordance with one embodiment, a battery system includes an electrochemical cell, a flexible sensor assembly attached to the cell, the flexible sensor assembly including an array of spin valve magnetic field sensors exhibiting an organic magneto resistance effect, and a battery management system operably connected to the flexible array, the battery management system including a memory with program instructions stored therein, and a processor operably connected to the memory and to the array, the processor configured to execute the program instructions to identify local changes in magnetic flux using input from the array of magnetic field sensors. | 2015-03-05 |
20150061603 | MONITOR SYSTEM AND METHOD FOR STORED BATTERY - A monitor system for an inventoried battery includes at least one battery pack; at least one embedded monitor subsystem interfacing with the battery pack, the embedded monitor system adapted to acquire sensor data from the battery pack; and at least one archival data storage system interfacing with the embedded monitor subsystem, the archival data storage system adapted to archive the sensor data. A method of monitoring a stored battery is also disclosed. | 2015-03-05 |
20150061604 | WIRELESS CHARGING CIRCUIT AND ABNORMAL STATE PROTECTION CIRCUIT THEREOF - A wireless charging circuit and an abnormal state protection circuit thereof is provided in the present invention. The wireless charging circuit includes a power converter, a resonant circuit and an abnormal state protection circuit. The power converter receives an input voltage for outputting a PWM (pulse width modulation) signal. The input terminal of the resonant circuit receives the PWM signal. The common voltage terminal of the resonant circuit is coupled to a common voltage. The abnormal state protection circuit includes a DC sampling circuit and a control circuit. The DC sampling circuit is coupled to the resonant terminal of the resonant circuit for sampling the DC component of the voltage of the resonant terminal to obtain a DC voltage. The control circuit is coupled to the power converter and the DC sampling circuit for receiving the DC voltage. When the DC voltage is greater than a threshold voltage, the control circuit controls the power converter to reduce the current flowing through the resonant circuit. | 2015-03-05 |
20150061605 | ELECTRIC VEHICLE CHARGING SYSTEM - A charging system of an electric vehicle includes a drive battery storing electric power for driving a motor of the electric vehicle, a heater heating the drive battery, an electric power supply device converting electric power supplied from outside the electric vehicle and supplying the electric power to the drive battery or the heater, a contactor activating or deactivating a connection between the drive battery and the electric power supply device, temperature detector detecting a temperature of the drive battery, and controller controlling the contactor and the heater based on the temperature. The controller controls the contactor so as to deactivate the connection and conducts electricity to the heater when the temperature is less than a first predetermined temperature, and controls the contactor so as to activate the connection when the temperature is the first predetermined temperature or greater. | 2015-03-05 |
20150061606 | METHODS AND SYSTEMS FOR ELECTRICAL DC GENERATION - An electrical DC generation system is disclosed. According to one aspect, a system for electrical DC generation system includes an electrical machine, having a positive output terminal and a negative output terminal, a plurality of stator windings, a plurality of passive rectifiers connected to the plurality of stator windings, the plurality of passive rectifiers being connected in series to form an intermediate bus having a positive terminal and a negative terminal. The system also includes a DC-DC converter circuit having input terminals connected to the positive and negative terminals of the intermediate bus and having output terminals electrically isolated from the input terminals and connected in series with the intermediate bus. The DC-DC converter output voltage is adjusted to regulate torque of the electrical machine by adjusting stator current of the electrical machine. | 2015-03-05 |
20150061607 | METHODS AND SYSTEMS FOR AN INTEGRATED ELECTRICAL GENERATOR WITH HYBRID RECTIFIER - An electrical DC generation system is disclosed. According to one aspect, a system for electrical DC generation includes an electrical machine having multiple stator windings and multiple rectifiers for connection to portions of the stator windings. At least one active rectifier and at least one passive rectifier are connected in series to form a DC bus having a positive terminal and a negative terminal, where the positive terminal of the DC bus is connected to a positive output terminal of the electrical machine and where the negative terminal of the DC bus is connected to a negative output terminal of the electrical machine. The at least one active rectifier is used to control a current flowing through the DC bus and/or an output voltage of the electrical machine. | 2015-03-05 |
20150061608 | POWER FACTOR CORRECTOR - A power factor corrector correcting the power factor of an alternating current (AC) voltage is disclosed. A power factor correcting unit corrects the power factor of the AC voltage. A smoothing unit smoothes a power factor corrected voltage and includes a film condenser and a plurality of electrolytic condensers. A rectified voltage is applied to one end of an inductor. One end of a switch is connected to the other end of the inductor, and the other end of the switch is earthed. One end of a diode is connected to one end of the switch. One end of a film condenser is connected to the other end of the diode, and the other end of the film condenser is earthed. An electrolytic condenser is parallel-connected to the film condenser. | 2015-03-05 |
20150061609 | REFERENCE SIGNAL GENERATING CIRCUIT AND METHOD AND POWER FACTOR COMPENSATION APPARATUS HAVING THE SAME - A reference signal generating circuit is provided that generates a reference signal corresponding to an input signal for power factor compensation of a power converter. The reference signal generating circuit includes a detector sampling the input signal according to a reference clock to detect and hold the maximum input signal and a phase measuring unit measuring a phase of the sampled input signal based on the sampled input signal and the detected maximum input signal. The circuit also includes a reference signal generating unit configured to generate a reference signal having a specific value in response to the measured phase. | 2015-03-05 |
20150061610 | CONTROLLER AND A METHOD FOR CONTROLLING A PROCESS VARIABLE AND A POWER SUPPLY CIRCUIT COMPRISING A POWER SUPPLY AND A CONTROLLER - A controller ( | 2015-03-05 |
20150061611 | BOOTSTRAP REFRESH CONTROL CIRCUIT, POWER CONVERTER AND ASSOCIATED METHOD - A power converter having a bootstrap refresh control circuit and a method for controlling the power converter. The bootstrap refresh control circuit is configured to monitor a bootstrap voltage across a bootstrap capacitor and to provide an enhanced high side driving signal to a high side switch of the power converter. The bootstrap refresh control circuit is further configured to controlling the charging of the bootstrap capacitor through regulating the on and off switching of the high side switch and a low side switch based on the bootstrap voltage. The bootstrap refresh control circuit can refresh the bootstrap voltage in time to support driving the high side switch normally, without causing large spikes in an output voltage of the power converter and without influencing the power conversion efficiency of the power converter. | 2015-03-05 |
20150061612 | Switch mode power supply - A switch mode power supply has a first and second branch of an inductive element; a first switching element and a second switching element connected in series. Both branches are coupled to a power source in parallel. A controller controls said switching elements for operating said switch mode power supply in a plurality of consecutive time periods, wherein more than two of said switching elements are closed, i.e. at least one in each branch. The power supply has a polarity switching element coupled between said branches for receiving a pulsed voltage for providing an output voltage of a switchable polarity. The controller receives a feedback signal corresponding to the output voltage, compares the feedback signal to a reference waveform, and controls said switching elements and the polarity switching element in dependence of said comparing for generating the output voltage according to the reference waveform. | 2015-03-05 |
20150061613 | DC-DC CONVERTER AND METHOD OF CONTROLLING DC-DC CONVERTER - A DC-DC converter includes: an inductor; a first capacitor and a second capacitor; a plurality of switching elements coupled to the inductor, the first capacitor, and the second capacitor; a control circuit configured to control the plurality of switching elements to be switched ON/OFF such that a connection form of the inductor, the first capacitor, and the second capacitor is alternately switched between a first form where the inductor, the first capacitor, and the second capacitor are coupled in series such that the first capacitor and the second capacitor are charged and a second form where the inductor, the first capacitor, and the second capacitor are coupled in parallel such that the first capacitor and the second capacitor are discharged; and a detection circuit configured to detect a difference between each of a voltage across the first capacitor and a voltage across the second capacitor. | 2015-03-05 |
20150061614 | METHOD AND APPARATUS FOR CALCULATING AN AVERAGE VALUE OF AN INACCESSIBLE CURRENT FROM AN ACESSIBLE CURRENT - In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current in a power converter by a duty cycle of a pulse width modulated (PWM) signal representing a duty cycle of the power converter. Coupling a voltage representing the measured value to an input of a low pass filter during a time period (D) and coupling the input of the low pass filter to a reference voltage during a time period (1−D). | 2015-03-05 |
20150061615 | SWITCHING REGULATOR - A switching regulator includes a first switching element and a second switching element in a pair to be switched over to convert an input voltage to a certain constant voltage, and an operation monitor to monitor an operation state of the first switching element, in which a switching of the second switching element is changed according to a result of the monitoring by the operation monitor. | 2015-03-05 |
20150061616 | SWITCHING POWER VOLTAGE REGULATOR - A switching power voltage regulator includes a pulse width modulation (PWM) signal generator, an output circuit and a feedback circuit. The PWM signal generator is configured to generate a PWM signal. The feedback circuit is configured to provide a feedback signal to the output circuit according to an output voltage of the output circuit. The output circuit includes an inductor, a plurality of inverters, and a driver. Each of the inverters includes a first transistor and a second transistor. When the inductor needs to be charged, the driver selectively switches one or more corresponding first transistors on according to the feedback signal. | 2015-03-05 |
20150061617 | ADJUSTING A CURRENT THRESHOLD OF A POWER SUPPLY IN RESPONSE TO A PORTION OF A CURRENT-PULSE PERIOD - An embodiment of a power-supply controller includes switching circuitry and an adjuster circuit. The switching circuitry is configured to cause a charging current to flow until the charging current has a predetermined relationship to a threshold, and to cause a discharging current to flow after the charging current. The adjuster circuit is configured to adjust the threshold in response to at least one of a charging period during which the charging current flows and a discharging period during which the discharging current flows. For example, a power supply may include such a power-supply controller to maintain a length of a current pulse, or of a portion thereof, within a particular range, such as approximately at a particular value, during a pulse-frequency-modulation (PFM) mode despite variations in one or more parameters such as input voltage, output voltage, filter capacitance, phase inductance, charging-current-sense impedance, and load, from their respective nominal values. | 2015-03-05 |
20150061618 | TRANSITIONING A POWER SUPPLY FROM A MODE TO ANOTHER MODE IN RESPONSE TO A LENGTH OF A PORTION OF A CURRENT PULSE - An embodiment of a power-supply controller includes a switching circuit and a transition circuit. The switching circuit is configured to generate a regulated output voltage by generating first current pulses at an approximately fixed frequency during a first mode, and generating second current pulses at a variable frequency during a second mode. And the transition circuit is configured to transition the switching circuitry from the first mode to the second mode in response to a length of one of the first current pulses. For example, a power supply may include such a power-supply controller to transition the supply from a PWM mode to a PFM mode under light-load conditions. To cause this transition at a predictable load point, the controller may monitor the lengths of the current pulses during the PWM mode, and may transition the supply to a PFM mode in response to the lengths being below a threshold. | 2015-03-05 |
20150061619 | Switching Regulator with Increased Light Load Efficiency in Pulse Frequency Modulation Mode - A switching regulator includes a multiphase converter which includes a plurality of main phases configured to covert a power supply voltage to a lower voltage for application to an electronic device at different load conditions. The switching regulator also includes an auxiliary phase configured to operate in a pulse frequency modulation mode during a light load condition so that power is supplied to the electronic device by at least the auxiliary phase during the light load condition. | 2015-03-05 |
20150061620 | CURRENT CONTROL CIRCUIT - Consistent with an example embodiment, there is a current control circuit for controlling current flow between a first terminal and second terminal. The current control circuit comprises a current-sensing power MOSFET (metal-oxide semiconductor field effect transistor). Current control is useful for limiting current flow during linear mode operations such as “hotswap”, “soft start” and “eFuse” operations, in particular, the reducing of or the preventing of high current surges due to discharged capacitive loads suddenly being switched into circuit. Such current surges can cause supply interference or cause malfunction of sensitive circuits due to the effects of the noise pulse. In extreme cases, fuses may blow or circuit breakers may trip due to the high current surges, therefore taking one or more systems offline. | 2015-03-05 |
20150061621 | LOW DROP-OUT REGULATOR WITH A CURRENT CONTROL CIRCUIT - A circuit including a low drop-out regulator (LDO) has a current control loop configured and connected to detect whether an external capacitor is connected to the output of the LDO. The current control loop includes a differential amplifier, a current source capable to output different reference currents and a small MOS transistor. The circuit may be operated in an output capacitor detection mode when started and in a regulated voltage source mode otherwise. In the output capacitor detection mode, the small MOS transistor is driven by the differential amplifier and drives the LDO's power MOS transistor depending on a difference between a current through the small MOS transistor and the reference current output by the current source. Components of the current control loop may be used during regulated voltage source mode for short circuit protection. | 2015-03-05 |
20150061622 | Method and Apparatus for Limiting Startup Inrush Current for Low Dropout Regulator - A low dropout (LDO) regulator with a limited startup inrush current is disclosed. The LDO includes a power source, error amplifier, pass transistor, feedback network, and a current limit control whose input is electrically connected to the pass transistor and the electrical output of the error amplifier and whose output limits current during startup. The LDO can include a current control limit comparator including a power source, and output of the pass transistor. The LDO can also include a bypass mode current control limit comparator having a first input voltage of the error amplifier, and a second input voltage from the error amplifier. | 2015-03-05 |
20150061623 | VOLTAGE REGULATOR OF LOW-DROP-OUTPUT TYPE AND OPERATION METHOD OF THE SAME - There are provided a voltage regulator of a low-drop-output type, and an operation method of the same. The voltage regulator includes: an error amplifying unit providing a gate signal according to a voltage difference between a reference voltage and a feedback voltage; a semiconductor switch regulating a current between a supply voltage terminal and a ground according to the gate signal; a voltage detecting unit detecting the supply voltage to provide a detected voltage; a feedback control unit providing a feedback control signal according to the detected voltage; and a feedback voltage regulating unit connected between the semiconductor switch and the ground to regulate the feedback voltage according to the feedback control signal. | 2015-03-05 |
20150061624 | PWM/PFM CONTROLLER FOR USE WITH SWITCHED-MODE POWER SUPPLY - A controller, for use with an SMPS DC-DC converter, includes a PWM/PFM generator and a switch driver. The PWM/PFM generator simultaneously generates CTRL | 2015-03-05 |
20150061625 | MODULATION METHOD, AND MODULATION MODULE AND VOLTAGE CONVERTING DEVICE THEREOF - A modulation method, for a voltage converting device, includes generating a first modulation signal according to an input voltage and a first output voltage; generating a second modulation signal according to the input voltage and a second output voltage; adjusting the first modulation signal and the second modulation signal according to a clock signal for making a first starting time of the first modulation signal be different from a second starting time of the second modulation signal; and generating the first output voltage and the second output voltage according to the input voltage, the first modulation signal and the second modulation signal. | 2015-03-05 |
20150061626 | SMOOTH TRANSITION OF A POWER SUPPLY FROM A FIRST MODE, SUCH AS A PULSE-FREQUENCY-MODULATION (PFM) MODE, TO A SECOND MODE, SUCH AS A PULSE-WIDTH-MODULATION (PWM) MODE - In an embodiment, an apparatus, such as a power-supply controller, includes a generator and an adjuster. The generator is configured to provide a switching signal that causes a power supply to generate a regulated output signal, and the adjuster is configured to impart a condition to the power supply while the power supply is operating in a first mode, the condition being approximately equal to a condition that the power supply would have if the power supply were operating in a second mode. For example, such an apparatus may be able to reduce or eliminate a transient on a regulated output signal (e.g., a regulated output voltage) when a power supply transitions from a first operating mode, such as a pulse-frequency-modulation (PFM) mode, to a second operating mode, such as a pulse-width-modulation (PWM) mode. | 2015-03-05 |
20150061627 | SEMICONDUCTOR DEVICE - In a semiconductor device connected to a mutual-inductive load, a voltage dividing diode is provided in series to an ST-MOS circuit so that an anode thereof is connected to a GND terminal and a cathode thereof is connected to the back gate of each of lateral nMOSFETs forming the ST-MOS circuit. This can inhibit parasitic transistors in the lateral nMOSFETs from malfunctioning to enable the voltage at an ST terminal to be reliably maintained at a normal voltage. | 2015-03-05 |
20150061628 | POWER CONVERTER, CLOCK MODULE AND ASSOCIATED CONTROL METHOD - A power converter and a clock module employed for providing a clock signal to the power converter. The power converter converts an input voltage to an output voltage based on at least the switching on and off of a main switch. The clock module monitors a deviation of the output voltage from its desired value and compares the deviation with a predetermined threshold window to provide a clock control signal. The clock module further regulates the clock signal in response to the clock control signal. | 2015-03-05 |
20150061629 | MULTI-POWER DOMAIN OPERATIONAL AMPLIFIER AND VOLTAGE GENERATOR USING THE SAME - A multi-power domain operational amplifier includes an input stage circuit, a power domain transforming circuit and an active load. The input stage circuit is configured to transform a set of input voltages into a set of input currents in a first power domain. The power domain transforming circuit is configured to transform the set of input currents into a set of output currents in a second power domain. The active load is configured to generate an output voltage according to the set of output currents. A common mode range of the output voltage is shifted as compared with a common mode range of the set of input voltages. | 2015-03-05 |
20150061630 | SWITCHING CONVERTER WITH CONTROLLABLE RESTART DELAY AND ASSOCIATED CONTROL METHOD - A switching converter providing an output voltage has a first switch and a control circuit. The control circuit provides an auxiliary power supply voltage, and a switching control signal to control the first switch based on the output voltage and a reference signal. The switching converter is shut down by the control circuit when a fault happens, and the switching converter restarts when the auxiliary power supply voltage decreases to a first threshold. | 2015-03-05 |
20150061631 | SEMICONDUCTOR DEVICE AND CURRENT AMOUNT CONTROL METHOD - There is provided a semiconductor device including: a current generation circuit that generates a current; a voltage generation circuit that, using the current generated by the current generation circuit, generates and outputs a predetermined voltage from a reference voltage, with an internal capacitor element that is connected to output of the voltage generation circuit, the internal capacitor element being provided within an integrated circuit on which the device itself is mounted; a storage section that stores a flag indicating a connection state between the output of the voltage generation circuit and an external capacitor element provided externally to the integrated circuit; and a controller that, based on the flag, controls a current amount of the current used by the voltage generation circuit to generate the predetermined voltage. | 2015-03-05 |
20150061632 | SYSTEM AND METHOD OF EQUIVALENT SERIES INDUCTANCE CANCELLATION - An equivalent series inductance (ESL) cancel circuit for a regulator for adjusting a feedback voltage by attenuating a magnitude of a square wave ripple voltage developed on an output voltage. The regulator includes an output inductor and an output capacitor, in which the capacitor has an ESL which forms an inductive voltage divider with the output inductor causing the square wave voltage ripple. The ESL cancel circuit may include first and second current sources and a resistor device coupled between the output node and an adjust node which is further coupled to a feedback input of the regulator. The first current source applies a current proportional to the output voltage to the adjust node. The second current source selectively applies a current proportional to the input voltage of the regulator based on a state of the pulse control signal. | 2015-03-05 |
20150061633 | TECHNIQUE FOR SUPPLYING POWER TO A LOAD VIA VOLTAGE CONTROL AND CURRENT CONTROL MODES OF OPERATION - A regulator draws power from a battery or power delivery system and supplies regulated power to a load according to alternating modes of operation. In a voltage control mode, the regulator supplies power with a nominal voltage level and a fluctuating current level that is allowed to float according to the current demands of the load. When the load demands an amount of current that could potentially cause damage, the regulator transitions to a current control mode. In the current control mode, the regulator supplies power with a fluctuating voltage level and a maximum current level. The regulator transitions between voltage control mode and current control mode in order to supply a maximum power level to the load without exceeding the maximum current level. The regulator is also configured to limit the power drawn from the battery by decreasing the maximum output current, potentially avoiding voltage droop. | 2015-03-05 |
20150061634 | CURRENT LOOP INPUT PROTECTION - A protective circuit for a process control device such as a valve actuator, for example, prevents damage to device components. In particular, a protective circuit allows an analog current loop (e.g., 4-20 mA) to provide to a device component a secondary operating voltage, derived from the analog current loop, in the absence of a primary operating voltage source (e.g., during a power failure), such that the device component is not damaged when a signal from the analog current loop is applied to the process control device in the absence of the primary operating voltage source. | 2015-03-05 |
20150061635 | VOLTAGE CONVERTING INTEGRATED CIRCUIT - A voltage converting integrated circuit includes a first switch, a second switch, a third switch, a fourth switch, and a control circuit. The first switch is coupled between a first voltage pin and a first switch pin. The second switch is coupled between a second voltage pin and a second switch pin. The third switch is coupled between the first switch pin and a third voltage pin. The fourth switch is coupled between the second switch pin and a reference ground. The first to the fourth switches are controlled by a control signal to be turned on or off. The control circuit is coupled to the first to the fourth switches for receiving a mode setting signal and the control circuit generates a control signal according to the mode setting signal. | 2015-03-05 |
20150061636 | AUTOMATIC CALIBRATION METHOD FOR ACTIVE AND REACTIVE POWER MEASUREMENT - A system is provided for calibrating a device. The system includes a reference component, a sampling component, a calibration component, a comparing component and a proportional integral component. The reference component provides a reference power signal based on a voltage instruction and a current instruction. The sampling component samples a voltage signal to obtain a sampled voltage value and samples a current signal to obtain a sampled current value. The calibration component generates a calibrated power signal based on the sampled voltage value and the sampled current. The comparing component generates an error signal based on the reference power signal and the calibrated power signal. The proportional integral component and the calibration component are a feedback system that is operable to calibrate the gain of the sampled voltage and the sample current based on the error signal. | 2015-03-05 |
20150061637 | NEGATIVE VOLTAGE MEASUREMENT - A method of measuring a negative voltage using a device including a first transistor and a second transistor is provided. The first transistor is coupled to the second transistor and the negative voltage is supplied to a gate of the second transistor. A plurality of voltages are provided to a source input of the device. For each voltage of the plurality of voltages, whether a first voltage across the first transistor is equivalent to a second voltage across the second transistor is determined, and, when the first voltage across the first transistor is equivalent to the second voltage across the second transistor, the negative voltage is determined by measuring a magnitude of a positive voltage of the device. | 2015-03-05 |
20150061638 | APPARATUS AND METHOD FOR AUTOMATIC POWER METERING - An apparatus for automatic power metering within a device is provided. The apparatus includes a metering element and communication elements. The metering element is coupled to a power factor correction circuit at one or more nodes within the device, and is configured to measure and process values on the nodes to generate one or more metering metrics for the device. The metering data includes input power consumed by the device, output power transferred to a load of the device, and power factor corresponding to the device. The communication elements are configured to receive the one or more metering metrics, and are configured to transmit the one or more metering metrics over a communications channel. | 2015-03-05 |
20150061639 | Dead-Time Selection In Power Converters - A method is provided of determining a time interval between switching events for a switching device in a power converter, the switching device being for coupling a direct current (DC) source to provide an alternating current (AC) output at a particular switching frequency. The method comprises selecting an initial length of a time interval between a first switching event and a second, subsequent switching event for the switching device and obtaining a current measurement value for the switching device when the time interval between the first switching event and the second, subsequent switching event takes said initial length. The method further comprises changing the length of the time interval between the first switching event and the second, subsequent switching event and obtaining a current measurement value for the switching device when the length of the time interval is changed. The current measurement values which have been obtained are used to detect generation of a current in the switching device. It is then determined, from the change made to the length of the time interval and the current measurement values obtained, a length (t | 2015-03-05 |
20150061640 | Method and Device for Sensorless Control of a Separately Excited Synchronous Machine - A method for sensorless control of a separately excited synchronous machine having a rotor includes the following steps: feeding a test signal on a parameter of an electrical current driving the rotor; measuring the parameter of the electrical current driving the rotor on an axis of the coordinate system describing the synchronous machine; determining an error signal by correlating the measured parameter of the electrical current driving the rotor with a temporally delayed test signal which is determined from the fed test signal; and adjusting a rotor angle as a reaction to the error signal if the error signal has a value not equal to zero. | 2015-03-05 |
20150061641 | METHOD FOR DETERMINING THE POSITION OF THE ROTOR OF AN ELECTRICAL MACHINE - A method for determining the position of the rotor of an electric machine having multiple phases in relation to the stator. The change Δi in the time derivative I of the current I flowing through at least one of the power inputs is determined. The change Δi is caused by a change ΔU in the potential U on at least one of the power inputs of the electric machine. A measurement signal that is representative of a position of the rotor is determined from multiple simultaneously or successively determined changes Δi. | 2015-03-05 |
20150061642 | CURRENT MEASUREMENT DEVICE AND CURRENT MEASUREMENT METHOD - A current measurement device measures current flowing in a composite material M containing conductive fibers. The current measurement device includes a temperature measuring unit that measures the temperature of a surface of the composite material, upon flow of current in the composite material; a storage unit that stores conversion data that is acquired as a result of a conversion data acquisition test performed beforehand and that results from converting the temperature of the surface of the composite material to the value of the current flowing in the composite material; and a current calculator that, on the basis of the conversion data stored in the storage unit, converts the temperature of the surface of the composite material M as measured by the temperature measuring unit to a value of the current flowing in the composite material. | 2015-03-05 |
20150061643 | CURRENT MEASURING CIRCUIT - A current measuring circuit ( | 2015-03-05 |
20150061644 | INTERCONNECTION METER SOCKET ADAPTERS - Interconnection meter socket adapters are provided. An interconnection meter socket adapter comprises a housing enclosing a set of electrical connections. The interconnection meter socket adapter may be configured to be coupled to a standard distribution panel and a standard electrical meter, thereby establishing connections between a distribution panel and a user such that electrical power may be delivered to the user while an electrical meter measures the power consumption of the user. An interconnection meter socket adapter may be configured to be coupled to a DC-AC converter, which may be coupled to various energy sources. As such, the energy sources are coupled to an electrical power system. In addition, a connector such as a flexible cable or flexible conduit containing insulated wires can be provided for connecting various energy sources and/or sinks. | 2015-03-05 |