| Patents for H02M 5 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases (13,094) |
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| 03/26/2008 | CN101151790A Matrix converter |
| 03/26/2008 | CN101150287A Zeta type three-level AC-AC converter |
| 03/26/2008 | CN101150286A AC-AC three level AC-AC converter based on positive converter |
| 03/25/2008 | US7348767 Bidirectional power conversion with multiple control loops |
| 03/20/2008 | WO2008033527A2 Housing for inductive coupler for power line communications |
| 03/20/2008 | WO2008033088A1 Method and device for reducing the influence of a dc component in a load current of an asynchronous three-phase motor |
| 03/20/2008 | WO2008031915A1 Method and apparatus for braking a motor |
| 03/20/2008 | US20080068870 Power Unit |
| 03/20/2008 | DE112006001095T5 Stromrichter und Stromrichterverfahren Converters and converter method |
| 03/19/2008 | EP1900088A1 Circuit arrangement for detecting zero crossings of an alternating voltage |
| 03/19/2008 | CN201039537Y Step down light adjusting device with adjustable step down time |
| 03/19/2008 | CN201039081Y Frequency conversion speed-adjusting circuit for mine lifter |
| 03/19/2008 | CN201039080Y Borer AC frequency conversion system for self-lifting artesian well platform |
| 03/19/2008 | CN201039077Y Motor power saver |
| 03/19/2008 | CN201039049Y Full-frequency AC/AC frequency conversion starter |
| 03/19/2008 | CN201039021Y Constant current power supply device |
| 03/19/2008 | CN201039020Y General mechanical high-voltage frequency converter |
| 03/19/2008 | CN201039019Y High-voltage frequency converter for wind pump |
| 03/19/2008 | CN201039018Y Energy feedback high-voltage frequency converter |
| 03/19/2008 | CN201039017Y A serial connection voltage equalization high-voltage transducer |
| 03/19/2008 | CN201039016Y Mega W direct drive wind network merging convertor |
| 03/19/2008 | CN201039015Y Private power supply for stations along electric railway |
| 03/19/2008 | CN201039014Y High-voltage static generator |
| 03/19/2008 | CN201038999Y Low harmonic wave and high power factor high-voltage frequency converter |
| 03/19/2008 | CN201038994Y High-voltage frequency conversion combined cabinet for mine well lifter |
| 03/19/2008 | CN201038638Y Low harmonic high power factor high voltage frequency conversion combination cabinet |
| 03/19/2008 | CN201038632Y High voltage frequency conversion combination cabinet for draught fan water pump |
| 03/19/2008 | CN201038630Y High voltage frequency conversion combination cabinet for general machinery |
| 03/19/2008 | CN201038629Y Energy-feeding type high voltage frequency conversion combination cabinet |
| 03/19/2008 | CN201038489Y External pressure-variable receptacle |
| 03/19/2008 | CN201038068Y Timer drive module |
| 03/19/2008 | CN201037638Y Multifunctional desk lamp |
| 03/19/2008 | CN101145737A Sampling control power converter for winding voltage |
| 03/19/2008 | CN101145063A Transient voltage compensation device and power supply device using same |
| 03/18/2008 | US7344497 Non-invasive device and method for measuring the cardiac output of a patient |
| 03/13/2008 | WO2007147678A3 Method of controlling a three level converter |
| 03/13/2008 | WO2006065435B1 Power system with redundant power supply apparatus |
| 03/13/2008 | US20080062727 Laminated balun transformer |
| 03/13/2008 | DE102006039792A1 Mehrsystem-Traktionsstromrichter Multi-system traction converter |
| 03/13/2008 | DE102006039424A1 Electric motor`s e.g. synchronous motor, inverse electromotive force eliminating module, has blocking unit provided for blocking energy supply from converter side to power supply side in case of predetermined voltage rise in converter side |
| 03/12/2008 | EP1814766B1 The safe three-phase contact-free switch |
| 03/12/2008 | CN101141097A Two-stage matrix convertor for megawatt wind power generation |
| 03/12/2008 | CN100375581C High efficiency high power factor electronic ballast |
| 03/11/2008 | US7342168 Sound effecter, fundamental tone extraction method, and computer program |
| 03/06/2008 | US20080055955 Control apparatus for AC-AC converter |
| 03/06/2008 | US20080055954 Control scheme for dc/ac cycloconverter |
| 03/06/2008 | US20080055953 Matrix converter |
| 03/06/2008 | DE112006000887T5 Vorrichtung zum Wandeln einer Matrix Apparatus for converting a matrix |
| 03/05/2008 | EP1895649A2 Control methods for pulse width modulation (PWM) |
| 03/05/2008 | CN101136596A Plusewidth modulation method for cycloconverter |
| 03/05/2008 | CN101136594A Control scheme for dc/ac cycloconverter |
| 03/05/2008 | CN101136582A Control method of DC side-discharging circuit of full power convertor |
| 03/05/2008 | CN101135886A Hanging cradle controller for construction using single-phase electric power |
| 03/05/2008 | CN100373769C Power converter |
| 03/04/2008 | US7339809 Systems and methods for electrical power regulation and distribution in aircraft |
| 03/04/2008 | US7339453 Differential mode inductor with a center tap |
| 03/02/2008 | CA2599126A1 Control methods for pulse width modulation (pwm) |
| 02/28/2008 | WO2008022513A1 A voltage adjustable driver for a sine wave ac power supply |
| 02/28/2008 | US20080049474 Power converter and power converting method |
| 02/28/2008 | US20080049472 Switching Power Supply Device and Electronic Apparatus |
| 02/28/2008 | US20080049469 Control method for direct power converter |
| 02/28/2008 | US20080049463 Stabilized power supply |
| 02/28/2008 | US20080049462 Power level balance of frequency converters connected in parallel |
| 02/28/2008 | US20080049461 Power supply having multiple power output |
| 02/28/2008 | US20080049460 Open-ended control circuit for electrical apparatus |
| 02/28/2008 | CA2661533A1 Switch mode power converter having multiple inductor windings equipped with snubber circuits |
| 02/27/2008 | EP1892822A2 Power level balance of frequency converters connected in parallel |
| 02/27/2008 | EP1892820A1 Method for determining a characteristic for the quality of a network supplying a frequency converter |
| 02/27/2008 | EP1892168A1 Control system for hybride vehicle |
| 02/27/2008 | EP1397942B1 High efficiency high power factor electronic ballast |
| 02/27/2008 | CN101132153A Multifunctional power supply |
| 02/26/2008 | US7336514 Electrical power conservation apparatus and method |
| 02/26/2008 | US7336509 Method and apparatus for estimating line inductance for PWM rectifier control |
| 02/26/2008 | US7336135 Oscillator and semiconductor device |
| 02/21/2008 | DE102006035859A1 Resonance detecting method for e.g. torque motor of machine and robot, involves monitoring intermediate circuit voltage towards ground in permanent manner, and providing signal, when peak-peak voltage value reaches or exceeds preset value |
| 02/20/2008 | CN201025674Y Three level middle voltage converter for MW wind power generation |
| 02/20/2008 | CN101128972A Supply power adjusting apparatus and semiconductor manufacturing apparatus |
| 02/20/2008 | CN101127491A Ultra-high frequency adjusting harmonic vibration testing power based on high power IGBT |
| 02/20/2008 | CN101127490A A high power transistor frequency conversion power supply |
| 02/20/2008 | CN101127489A Switch power supply |
| 02/20/2008 | CN101127488A A railway engine AC traction one-phase power supply device based on YN,vd wiring transformer |
| 02/20/2008 | CN101127425A Temperature adjusting wall power socket |
| 02/20/2008 | CN100370671C Active power filtering method and its device based on alpha-beta current component directly injection |
| 02/19/2008 | CA2287798C Static voltage regulator |
| 02/14/2008 | US20080037960 Quenching Device for a Converter Bridge with Line Regeneration |
| 02/14/2008 | US20080037306 Power management method and device for low-power displays |
| 02/14/2008 | DE102007033863A1 Control device for an alternating current direct voltage changer comprises a first unit for calculating one of the current components, a second unit for determining a pulsating component and a third unit for correcting the phase |
| 02/13/2008 | EP1412218B1 Hybrid drive system and method for adjusting a hybrid drive system |
| 02/13/2008 | CN101123401A Cutting control AC voltage adjusting circuit and its application |
| 02/13/2008 | CN101123400A Power converter and its control method |
| 02/12/2008 | US7330364 Device for converting high voltage alternating current (AC) to low voltage direct current (DC) and method therefor |
| 02/12/2008 | US7330363 Converter circuit with two converter elements |
| 02/12/2008 | US7330016 Induction generator power supply |
| 02/12/2008 | US7330012 High frequency bus system |
| 02/07/2008 | US20080031027 Method and Apparatus for Reducing Body Diode Conduction of Synchronous Rectifiers |
| 02/07/2008 | US20080031019 Universal Power Conversion Methods |
| 02/07/2008 | DE102007032514A1 Cyclo-converter i.e. matrix converter, controlling method, involves controlling cyclo-converter using final output voltage reference values, which are obtained by limiting peak values of output voltage reference values of cyclo-converter |
| 02/07/2008 | DE102007010429A1 Power amplifier arrangement, has regeneration unit with transformer adjusting output voltage set in several supply voltage stages and phases, which are selected such that voltage difference is minimal depending on voltage of amplifier |
| 02/06/2008 | EP1884015A2 Inverter operation with over-modulation |
| 02/06/2008 | CN201018451Y Variable frequency speed regulation system |