Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
10/2009
10/15/2009US20090256490 Voltage sensing circuits and methods for inverters
10/15/2009DE19514537B4 Verfahren zur Ansteuerung der Stromrichterventile von gleichstromseitig in Reihe geschalteten Parallelschwingkreiswechselrichtern A method of driving the converter valves of the direct current side connected in series parallel resonant circuit inverters
10/15/2009DE102009014769A1 Motorsteuervorrichtung The motor control apparatus
10/15/2009DE102009000600A1 Systeme und Verfahren eines Einphasen-Vollbrücken-Aufwärtswandlers Systems and methods of a single-phase full-bridge up converter
10/15/2009DE102008018390A1 Synchronous rectifier e.g. bridge rectifier, has transformer with primary windings coupled with secondary windings of cells such that transistors are deactivated in forward operation and operated in conducting manner in inverse operation
10/15/2009DE102008011609A1 Standby-circuit for transformer power supply unit in small device for household and industry, has switching device adjusting normal operation of transformer and standby-operation of transformer during existence of control signals
10/15/2009DE102007016140B4 Verfahren und Vorrichtung zur Regelung der Ausgangsspannungen eines für 4-Leiter-Netze ausgelegten Wechselrichters beim Auftreten von Spannungs-Unsymmetrien Method and apparatus for controlling the output voltages of a designed for 4-wire networks inverter upon the occurrence of voltage unbalances
10/15/2009DE10115326B4 Verfahren zur Ansteuerung eines Schwingkreis-Wechselrichters, Schwingkreis-Wechselrichter und Regler Method for driving a resonant inverter, oscillator inverter and controller
10/14/2009EP2108216A2 Control device for an electric motor
10/14/2009CN201328085Y Suspension-type DC power supply device
10/14/2009CN201328083Y Primary side clamping circuit of phase-shifted full-bridge soft switching circuit
10/14/2009CN201328073Y Frequency converter circuit and frequency converter utilizing same
10/14/2009CN201328072Y Frequency converter circuit and frequency converter utilizing same
10/14/2009CN201328071Y Single-phase frequency converter circuit and frequency converter utilizing same
10/14/2009CN201326916Y LED lamp tube
10/14/2009CN201326915Y LED lamp
10/14/2009CN101557187A Control device for brushless direct current motor sensorless based on 12-beat control and method thereof
10/14/2009CN101557175A Feedback circuit for output and regulation of inverter
10/14/2009CN101557174A A state-tracked digitally-controlled inverter power supply
10/14/2009CN101557173A Single-core differential current transformer power supply
10/14/2009CN101557170A Half-bridge logical link control (LLC) resonant converter with self-driven synchronous rectifier
10/14/2009CN101557166A Power supply apparatus and semiconductor integrated circuit device
10/14/2009CN101557160A Ultralow-power standby circuit of inverter power supply
10/14/2009CN101556768A Power supply circuit
10/14/2009CN101556479A Automatic monitoring system of tobacco-leaf bulk curing barn
10/14/2009CN100550592C Power transition device
10/14/2009CN100550591C Inverter and programming device thereof
10/14/2009CN100550590C Dc/dc converter control system
10/14/2009CN100550589C Frequency converter and its control method
10/14/2009CN100550562C Method for detecting earth-fault conditions in motor controller
10/14/2009CN100550225C High voltage transformer
10/13/2009US7602628 Power production during a reduced activity state
10/13/2009US7602627 Electrical power source, operational method of the same, inverter and operational method of the same
10/13/2009US7602626 Power conversion apparatus
10/13/2009US7602625 Systems and methods for separation of a front end rectifier power system
10/13/2009US7602624 Current resonance type multi-phase DC/DC converting apparatus having a large capacity without restricting multi-phase
10/13/2009US7602158 Power circuit for generating non-isolated low voltage power in a standby condition
10/08/2009WO2009124224A2 Distributed multiphase converters
10/08/2009WO2009124221A2 Blade architecture array converter
10/08/2009WO2009123268A1 System stabilizing device
10/08/2009WO2009123094A1 Power assist device
10/08/2009WO2009121867A1 Improved voltage and current control method applied to a control apparatus for a device for the production of electrical energy
10/08/2009WO2009121475A2 Converter and method for determining a current space vector
10/08/2009WO2009101013A3 Energy conversion and accumulation device and relative method
10/08/2009WO2009094352A3 Externally synchronizing multiphase pulse width modulation signals
10/08/2009US20090251938 Inverter Circuit and Method for Operating the Inverter Circuit
10/08/2009US20090251937 Circuit arrangement having a dual coil for converting a direct voltage into an alternating voltage or an alternating current
10/08/2009US20090251936 Distributed multiphase converters
10/08/2009US20090251935 Multi-Pulse Rectifier for AC Drive Systems having Separate DC Bus Per Output Phase and Multiple Isolation Transformers
10/08/2009US20090251934 Apparatus, System and Method for Cascaded Power Conversion
10/08/2009US20090251933 Method for controlling inverters
10/08/2009US20090251859 Electronic power converter and mounting structure of semiconductor device
10/08/2009US20090251858 Electric power converter and mounting structure of semiconductor device
10/08/2009DE102008013625A1 Fahrzeug, insbesondere Schienenfahrzeug, mit einer Wandlereinheit und Verfahren zum Umwandeln einer Spannung Vehicle, in particular rail vehicle, with a converter unit and method for converting a voltage
10/08/2009DE102008012089A1 Verfahren zum Ansteuern einer Vollbrücke, und Anordnung zur Durchführung des Verfahrens A method for driving a full bridge, and device for carrying out the method
10/07/2009EP2107676A1 Control device and control method for power conversion system having instantaneous voltage drop - service interruption counter-measure functions
10/07/2009EP2107675A1 Dc power supply device and air conditioner using the same
10/07/2009EP2107672A1 Three-phase inverter without connection between the neutral conductor of the grid and the mid-point of the intermediate circuit
10/07/2009EP2107589A1 Switching device for grounding an inverter
10/07/2009EP1623495B1 Power supply circuits
10/07/2009CN201323535Y High efficiency sine wave inverter
10/07/2009CN201323534Y Electric inverter
10/07/2009CN201323533Y 24-pulse controlling circuit
10/07/2009CN201323532Y Mid-position clamp circuit of three-level voltage source type frequency converter
10/07/2009CN201323531Y 6KV high-voltage transducer directly composed of three-level H-bridge power unit module
10/07/2009CN201323196Y Heavy-current half-wave rectifier bridge
10/07/2009CN201322944Y Cash counter
10/07/2009CN201322279Y Temperature compensated constant current driven LED lighting lamp directly driven through AC power source
10/07/2009CN101553978A Circuit arrangement
10/07/2009CN101553977A Device for converting an electric current
10/07/2009CN101553064A Drive circuit of LED
10/07/2009CN101552572A Parallel inverter current control method adopting voltage differential compensation
10/07/2009CN101552571A Phase current detector
10/07/2009CN101552570A A switch voltage regulation circuit and method with a frequency limiting function
10/07/2009CN101552569A Synchronization inverter main circuit topology
10/07/2009CN101552568A Half-cycle control tri-level single-inductor dual buck half bridge inverter and control method thereof
10/07/2009CN101552567A Compensation method for pulse width modulation dead zone in three-phase grid-connected converter
10/07/2009CN101552566A A synchronous rectifier of a resonant switching power converter
10/07/2009CN101552565A Wide-amplitude voltage regulation and frequency modulation meter
10/07/2009CN101552564A Switch controller of power factor correction converter
10/07/2009CN101552563A Device and method for controlling constant-current output in switch power supply
10/07/2009CN101552557A Parallel-connected resonance converter circuit and control method thereof
10/07/2009CN101552545A AC-DC converting circuit, starting circuit and method for the converting circuit
10/07/2009CN101552544A Power control device
10/07/2009CN101552542A Multiplex universal power adapter
10/07/2009CN101552541A Universal power adapter
10/07/2009CN101552540A A boost converter and a power comprising the converter
10/07/2009CN101552538A Switch power supply auxiliary output circuit
10/07/2009CN101552537A Inductor packaging for power converters
10/07/2009CN101552467A Method for supplying power for high-power server equipment
10/07/2009CN101551684A Method for controlling rectified voltage in heating control of device aging screening machine
10/07/2009CN100547898C AC power supply direct-coupled brushless DC motor and electric apparatus equipped therewith
10/07/2009CN100547897C Control circuit for synchronous rectifier of forward power transducer
10/07/2009CN100547896C Improved three stage power source for electronic arc welding
10/07/2009CN100547895C Undershoot eliminator circuit and method for synchronous rectified DC-DC converters
10/07/2009CN100547874C DC supply system for container piling site tyre hoister
10/06/2009US7599203 Power semiconductor device
10/06/2009US7599202 DC-AC converter with feedback signal control circuit utilizing power supply voltage, controller IC therefor, and electronic apparatus utilizing the DC-AC converter
10/06/2009US7599200 Electric power converter
10/06/2009US7599196 Universal power converter