| 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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| 05/14/2009 | WO2009059372A1 Apparatus and method for pulse sampling control |
| 05/14/2009 | WO2009036430A3 Method and system for bypassing a power cell of a power supply |
| 05/14/2009 | WO2007086647A3 Air conditioner and control method thereof |
| 05/14/2009 | DE112005001213T5 Hilfsbus-System Auxiliary bus system |
| 05/13/2009 | EP2058932A2 Electronic control systems and methods |
| 05/13/2009 | EP1084531B1 Bi-directional ac/dc voltage regulator |
| 05/13/2009 | CN201238262Y Universal electricity-saving protection controller |
| 05/13/2009 | CN201238261Y Universal electricity-saving protection controller |
| 05/13/2009 | CN201237745Y Temperature control cabinet of heating stove |
| 05/13/2009 | CN101432956A Matrix converter, and control method for the matrix converter |
| 05/13/2009 | CN101431290A Optical fiber connecting method for cascade type medium-high voltage frequency convertor |
| 05/13/2009 | CN100488015C Double-power supply inductive smelting system |
| 05/12/2009 | US7532491 Apparatus and method for supplying DC power source |
| 05/12/2009 | US7532490 Converter topology and methods for interfacing an electrical machine to electrical power grid |
| 05/07/2009 | WO2009058680A1 A multi- volt age power supply for a universal airplane ground support equipment cart |
| 05/07/2009 | WO2009057866A2 Method for controlling motor of air conditioner and motor controller of the same |
| 05/07/2009 | WO2009056666A1 Power supply arrangement of an elevator |
| 05/07/2009 | WO2008040131A8 Method and switching arangement for the feedback of commutation energy of three-phase current drive systems with a current intermediate circuit converter |
| 05/07/2009 | US20090116265 Driving circuit for power switching device, driving method thereof, and switching power supply apparatus |
| 05/06/2009 | CN201234398Y Uninterrupted AC plasma arc electricity supply apparatus |
| 05/06/2009 | CN201234213Y Heating power supply apparatus for artificial diamond press machine |
| 05/06/2009 | CN201234212Y Electricity supply system and transforming apparatus |
| 05/06/2009 | CN201234211Y Automatic shifting control device for three-phase AC |
| 05/06/2009 | CN201233545Y Automatic constant pressure loaded regulating apparatus |
| 05/06/2009 | CN101427458A Motor control |
| 05/06/2009 | CN101427454A Single phase power supply for inductively coupled power transfer systems |
| 05/06/2009 | CN101425758A 1600kV/50mA outdoor moving DC voltage generator |
| 05/06/2009 | CN101425757A Voltage hunting and flicker generating apparatus |
| 05/06/2009 | CN101425756A DC lateral voltage controllable 4 quadrant frequency transformer and method thereof |
| 05/06/2009 | CN101425755A Accurate voltage regulating and stabilizing device |
| 05/06/2009 | CN100486093C Control structure of full power type AC-DC-AC converter for wind power generation |
| 05/06/2009 | CN100486092C Driving circuit used as inverter and display device |
| 05/06/2009 | CN100486091C Device for controlling power supply by phase gating and method for reduction of harmonic waves |
| 05/06/2009 | CN100486090C Voltage source and current source with capacitor |
| 05/06/2009 | CN100486075C Three-level medium voltage converter for megawatt wind power generation |
| 04/30/2009 | WO2009054380A1 Power conversion device |
| 04/30/2009 | WO2009054379A1 Power conversion device |
| 04/30/2009 | WO2009053520A1 Arrangement in a frequency converter controlled direct connected drive |
| 04/30/2009 | WO2009053519A1 Safety coupling for a frequency converter controlled motor drive |
| 04/30/2009 | WO2007018830A3 Renewable energy power systems |
| 04/30/2009 | US20090109713 Variable speed drive |
| 04/30/2009 | DE10245872B4 Vorrichtung und Verfahren zur Ermittlung der Ausgangsfrequenz eines Stromrichters Apparatus and method for determining the output frequency of the converter |
| 04/30/2009 | DE10240425B4 Schaltwandler mit einem separaten Transformator zur Sicherung des Standby-Betriebs Switching converter having a separate transformer for securing the standby operation |
| 04/30/2009 | DE102008044429A1 Energieumwandlungssystem für ein Kraftfahrzeug The energy conversion system for a motor vehicle |
| 04/29/2009 | CN201230385Y 15KHZ-40KHZ AC super-acoustic heat electric power device |
| 04/29/2009 | CN201230297Y Double salient poles permanent magnet wind power generator system |
| 04/29/2009 | CN201230284Y Apparatus for implementing high voltage frequency transformer based on IGCT |
| 04/29/2009 | CN201230283Y Laboratory electric power control system |
| 04/29/2009 | CN101420181A Three phase four bridge arm matrix type converter having excitation function |
| 04/29/2009 | CN101420174A Parallel resonance soft starting circuit and method |
| 04/29/2009 | CN101420172A Automatic transition method for LZ |
| 04/29/2009 | CN101419861A Large capacity single body phase angle regulator |
| 04/29/2009 | CN101419434A Capacitive switch power supply with low power consumption standby function |
| 04/29/2009 | CN100483916C Electric load device, abnormally handling method, and computer-readable recordinging medium storing therein program for causing computer to execute electric load abnormality handling |
| 04/29/2009 | CN100483913C PWM cycloconverter input voltage detection method and device |
| 04/29/2009 | CN100483912C Switch mode power converter |
| 04/29/2009 | CN100483736C Semiconductor diode, electronic component, voltage source inverter and control method |
| 04/28/2009 | US7525824 Method to control a frequency converter |
| 04/23/2009 | WO2009051320A2 Motor controller of air conditioner and method of the motor controller |
| 04/23/2009 | WO2009050124A1 Variable control device |
| 04/23/2009 | WO2008047374A3 Switched resonant-tank, cell based power converter |
| 04/23/2009 | WO2007069239A3 Apparatus, method and system for control of ac/ac conversion |
| 04/23/2009 | WO2007016401A3 Pre-charge method for isolated boost converter |
| 04/23/2009 | US20090102618 Uninterruptible Power Supply Unit |
| 04/22/2009 | EP2051361A1 High-voltage ac direct power converter |
| 04/22/2009 | CN201226505Y High voltage blower/high voltage fan electricity-saving device |
| 04/22/2009 | CN201226495Y Wind power generation conversion apparatus through composite connection of power units |
| 04/22/2009 | CN101414793A Electroplating power supply |
| 04/16/2009 | WO2009047769A2 Inductive receivers for electrical devices |
| 04/16/2009 | WO2009047768A2 Inductive power providing system |
| 04/16/2009 | WO2007033376A3 Musis production system |
| 04/16/2009 | US20090097282 Frequency Converting Apparatus And Control Method For The Apparatus |
| 04/16/2009 | DE102007044880A1 Method for operation of converter equipment, involves controlling or regulating multiple service sections by control unit, and memory image of actual operational data is deposited on converter equipment |
| 04/16/2009 | CA2702166A1 Inductive receivers for electrical devices |
| 04/15/2009 | EP2047594A1 Passive amplification of signals |
| 04/15/2009 | EP2047591A1 Multi-function passive frequency mixer |
| 04/15/2009 | CN201222700Y Equalizer circuit of electric power indication, auxiliary power startup and electrolytic capacitor |
| 04/15/2009 | CN201220609Y Modularized energy feedback type traction power supply equipment |
| 04/15/2009 | CN101409507A Method and apparatus for compensating dead zone of two-stage matrix converter based on carrier modulation |
| 04/15/2009 | CN100479137C Method and arrangement in inverter |
| 04/14/2009 | US7518893 Method for operation of a converter circuit, as well as an apparatus for carrying out the method |
| 04/14/2009 | US7518889 Method and apparatus for conditional response to a fault condition in a switching power supply |
| 04/09/2009 | US20090091955 Quasi resonant switching mode power supply |
| 04/09/2009 | US20090091954 Power converter and power conversion method |
| 04/09/2009 | US20090090546 Substrate for ac/ac multiple-phase power converter |
| 04/09/2009 | DE19827872B4 Antriebsschaltung für ein Schienenfahrzeug Driving circuit for a rail vehicle |
| 04/09/2009 | DE102007047713A1 Verfahren zur Entladung des Hochspannungsnetzes Method to discharge the high voltage network |
| 04/09/2009 | DE102007045433A1 Energiemanagement für den Antrieb von Baugruppen für Bearbeitungs- und/oder Transportvorgänge an Maschinen und Anlagen Energy management for the drive modules for processing and / or transport processes on machines and equipment |
| 04/09/2009 | CA2689503A1 Prediction scheme for step wave power converter and inductive inverter topology |
| 04/08/2009 | EP2045904A2 Motor driving apparatus |
| 04/08/2009 | CN201219242Y Low-power digital AC voltage regulator |
| 04/08/2009 | CN201219241Y Great current generator |
| 04/08/2009 | CN201219240Y Illumination energy-saving voltage stabilizer without bypass power-off |
| 04/08/2009 | CN101404460A Amplitude modulation type energy accumulation frequency conversion circuit |
| 04/08/2009 | CN101404459A Control method of AC-AC frequency converter in current on-off state |
| 04/08/2009 | CN101404458A Non-circular current control method for AC-AC frequency converter |
| 04/08/2009 | CN101404457A AC-AC frequency conversion current digital control system based on DSP and FPGA |
| 04/08/2009 | CN101404456A Transformer |
| 04/08/2009 | CN100476672C High precision digital-to-analog converter with optimized power consumption |
| 04/07/2009 | US7515393 Voltage regulator |