Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
06/2008
06/04/2008CN101192799A Voltage doubling circuit
06/04/2008CN101192789A Idle power reduction device of switch power and its method
06/04/2008CN101192788A Idle power-saving device of switch power and its power-saving method
06/04/2008CN100392975C Current control method
06/04/2008CN100392974C Method for automatic recongniting phase-sequence of phase control rectifier and its phase control rectifier
06/04/2008CN100392973C AC/DC converter and power supply system using the same
06/04/2008CN100392550C Power-supply device and its control method
06/04/2008CN100392546C Single chip ballast control with power factor correction
06/04/2008CN100392416C Overcurrent tester of TCR
06/03/2008US7382636 System and method for powering a load
06/03/2008US7382634 Voltage multiplier with charge recovery
06/03/2008US7382093 Device for operation of a discharge lamp of the short arc type
06/03/2008US7381490 Power system for fuel cell, electronic equipment and electric power feeding method
05/2008
05/29/2008WO2008062856A1 Controller for power supply circuit
05/29/2008WO2008062377A2 Miniaturised generator for the production of electrical energy from vibrations
05/29/2008WO2008061875A1 Generation of an idle mode signal for an electrical control device
05/29/2008WO2008004177A3 Method for controlling a deceleration process of a dc motor and controller
05/29/2008US20080123383 Rectifier circuit, power supply circuit, and semiconductor device
05/29/2008US20080123381 Inverter Circuit and Control Circuit Thereof
05/29/2008US20080123379 Voltage Regulating Circuit
05/29/2008US20080123378 Power adapter for providing output power limiting and load-dependent voltage regulation
05/29/2008US20080123375 Multi-Mode Power Converter
05/29/2008US20080123374 Adaptively Configured and Autoranging Power Converter Arrays
05/29/2008US20080123373 Current fed power converter system including normally-on switch
05/29/2008US20080122290 Adapter power for mobile devices
05/29/2008DE19734405B4 Drehstrommaschine und Verfahren zum Betreiben einer Drehstrommaschine Three-phase machine and method for operating a three-phase machine
05/29/2008DE102007054620A1 PWM-Sequenzmuster zur Verringerung von Verlusten bei Spannungszwischenkreisumrichtern PWM sequence patterns to reduce losses in voltage source inverters
05/29/2008CA2670452A1 Apparatus for flexible power transmission and for deicing of a high-voltage line by means of direct current
05/28/2008EP1926202A2 Power conversion apparatus
05/28/2008EP1926201A2 Capacitor drop type power supply circuit and air conditioner
05/28/2008EP1754304A4 Method for controlling low- voltage using waves ac and system for performing the same
05/28/2008CN201066825Y Phase difference voltage transformation circuit
05/28/2008CN201066820Y A novel high-capacity rectifying device
05/28/2008CN201065846Y Multifunctional emergency fan
05/28/2008CN201065814Y Body-building device converting biological energy into AC
05/28/2008CN201064737Y Three-phase high voltage power supply for electric precipitation
05/28/2008CN101189786A Power and information signal transfer using micro-transformers
05/28/2008CN101188900A Medical diagnosis X radial high-frequency and high-voltage generator based on dual-bed and dual-tube
05/28/2008CN101188388A 功率转换设备 Power conversion apparatus
05/28/2008CN101188387A Electric power conversion device
05/28/2008CN101188386A PWM current rectifying system based on DSP and CPLD
05/28/2008CN101188385A A five-level high-voltage frequency converter
05/28/2008CN100391315C Power supply unit and used current converter
05/28/2008CN100391093C Method of compensating output current waveform of soft switch PWM two-phase inverter
05/28/2008CN100390619C Liquid crystal display device
05/27/2008US7379313 Voltage conversion device
05/27/2008US7379285 Apparatus for driving inductive load
05/27/2008US7378801 Driving circuit for inverter
05/27/2008US7378758 Parallel inverter system
05/27/2008US7378757 Power generation system
05/27/2008US7377805 Universal power supply apparatus
05/22/2008WO2008059977A1 Electric power feeding system
05/22/2008WO2008059769A1 Electric discharge lamp operating device
05/22/2008WO2008059764A1 Discharge lamp lighting apparatus
05/22/2008WO2008059145A1 Member for a synchronous rectifier bridge, related synchronous rectifier bridge and use thereof
05/22/2008WO2008012212A3 Circuit arrangement
05/22/2008US20080117658 Commutation method and apparatus for a DC to AC inverter driving a three-phase asynchronous AC motor
05/22/2008US20080116819 Liquid crystal display device
05/21/2008EP1923989A2 Power conversion system and power conversion control method
05/21/2008EP1922806A2 System and method for parallel control of variable frequency drives
05/21/2008EP1922805A1 A self-oscillating modulator
05/21/2008EP1922804A1 Device for electron energy transfer
05/21/2008EP1922803A1 Device for electron energy transfer
05/21/2008EP1695434B1 Converter circuit with two partial converters
05/21/2008DE102006053810A1 Rectifier bridge circuit for rectifying voltage produced by motor vehicle generator, has zener diodes provided with given zener voltage, and additional zener diode arrangement connected parallel to circuit
05/21/2008DE102006026256B4 Leistungsstufen-Schaltungsanordnung bzw. Verfahren zum Betreiben einer Leistungsstufen-Schaltungsanordnung Power stage circuitry and methods for operating a power stage circuitry
05/21/2008CN201063550Y Inverse excitation type convertor for detecting field effect transistor using diode
05/21/2008CN201063549Y DC power supply redundant apparatus of high voltage frequency converter
05/21/2008CN201063548Y Switch power supply and pulsewidth modulation controller thereof
05/21/2008CN201063547Y Power commutation electric source of switch reluctance motor speed control system
05/21/2008CN201063546Y Energy-saving device of electronic motor equipment
05/21/2008CN201063545Y Single-phase, three-phase voltage dual-purpose high-frequency inversion electric welder
05/21/2008CN201063540Y Positive-inverse excitation switch converter circuit
05/21/2008CN201063530Y Duplex power supply device for high voltage frequency converter control power supply
05/21/2008CN201063524Y Split type DC voltage-controlled power source module
05/21/2008CN201063507Y Three phase permanent-magnet generator
05/21/2008CN201063450Y Power supplier of DC motor machine tool
05/21/2008CN201063385Y Plug/socket with commutation function
05/21/2008CN201062567Y Tap-water electricity generating device
05/21/2008CN101185378A Fluorescent lamp driving apparatus, light emitting apparatus and liquid crystal television
05/21/2008CN101183836A Dual-boosting energy feedback type PWM rectification circuit
05/21/2008CN101183835A Voltage generating circuit
05/21/2008CN101183834A Commutating device
05/21/2008CN101183825A Switch power supply unit and IC for overload and saturation protection
05/20/2008USRE40320 Permanent magnet alternator and voltage regulator circuit for the permanent magnet alternator
05/20/2008US7375994 Highly efficient isolated AC/DC power conversion technique
05/20/2008US7375993 High-voltage X-ray generator
05/20/2008US7375992 Switched-capacitor regulators
05/20/2008US7375991 Power control device
05/20/2008US7375988 Self-synchronized high voltage synchronous rectifier and drive
05/20/2008US7375987 Resonant switching power source apparatus
05/20/2008US7375722 Driving circuit and display device
05/20/2008US7375489 Apparatus for generating sine waves of electromotive force, rotary switch using the apparatus, and generators using the rotary switch
05/15/2008WO2008056580A1 Superconductive rotating electric machine drive control system and superconductive rotating electric machine drive control method
05/15/2008WO2008056436A1 Input voltage detecting circuit
05/15/2008WO2008056435A1 Piezoelectric transformer drive circuit
05/15/2008WO2008055741A1 Method and apparatus for current measurement in an in particular polyphase electrical system
05/15/2008WO2008024410A3 Open-ended control circuit for electrical apparatus
05/15/2008US20080112202 Adjustable Compact High-Frequency-High-Voltage Power Supply
05/15/2008US20080112201 Power Converter Unit