| 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) |
|---|
| 07/10/2008 | WO2007075709A3 Active rectification of alternator output without using a position sensor |
| 07/10/2008 | US20080165555 Method and apparatus for cycle error correction for a power converter device, such as an electronic power inverter |
| 07/10/2008 | US20080164853 Bidirectional power conversion with multiple control loops |
| 07/09/2008 | EP1942027A1 Asymmetric fault detection and protection with AC solid state power controllers (SSPC) |
| 07/09/2008 | EP0916239B2 Electric tool with ducted cooled control electronics |
| 07/09/2008 | CN201082306Y High pressure generating device |
| 07/09/2008 | CN101218741A Variable speed drive for a chiller system with a switched reluctance motor |
| 07/09/2008 | CN101218738A Variable speed drive for a chiller system |
| 07/09/2008 | CN101214644A Frequency conversion electric tool |
| 07/08/2008 | US7397225 Apparatus for controlling the power of an AC voltage supplying an electrical consumer by phase control and method for reducing harmonics |
| 07/03/2008 | WO2008077974A1 Asynchronous generator with double supply |
| 07/03/2008 | WO2008077525A2 Transformer circuit for the frequency conversion of electric performance variables, method for actuating a transformer circuit and power generator |
| 07/03/2008 | US20080157747 Power dimmer |
| 07/02/2008 | EP1938445A2 Ac voltage output apparatus and hybrid vehicle including the same |
| 07/02/2008 | CN201081848Y Unit bypass device for high-voltage frequency converter composed of serially connected units |
| 07/02/2008 | CN101213732A A variable rotor speed wind turbine, wind park, method of transmitting electric power and method of servicing or inspecting a variable rotor speed wind turbine |
| 07/02/2008 | CN101212170A Frequency converter voltage and current signal supply circuit |
| 07/02/2008 | CN100399690C Power-limiting variable-voltage power supply |
| 07/02/2008 | CN100399685C Filter |
| 06/26/2008 | WO2008024929A3 Switch mode power converter having multiple inductor windings equipped with snubber circuits |
| 06/26/2008 | US20080151583 Inverter apparatus |
| 06/26/2008 | US20080150446 Load Control Device Having a Split Enclosure |
| 06/26/2008 | DE102006062406A1 Wandlerschaltkreis zur Wechselumrichtung elektrischer Leistungsgrößen, Verfahren zum Ansteuern eines Wandlerschaltkreises und Stromerzeuger Converter circuit for electric power Wechselumrichtung sizes, method for driving a converter circuit and power generators |
| 06/25/2008 | EP1936795A2 Method and arrangement in connection with motor fed with frequency converter provided with intermediate voltage circuit |
| 06/25/2008 | EP1936794A2 Current measuring arrangement of a frequency converter |
| 06/25/2008 | CN101207337A Current measuring arrangement of a frequency converter |
| 06/25/2008 | CN101206242A Method for controlling voltage and frequency of FM resonance type extra-high voltage test power supply |
| 06/25/2008 | CN100397263C Electric power regulating method and its system with timing function |
| 06/24/2008 | US7391132 Methods and apparatus providing double conversion/series-parallel hybrid operation in uninterruptible power supplies |
| 06/19/2008 | DE19959877B4 Anlage mit Kasten mit hoher Schutzart und ein Verfahren zum Fernbedienen dieser Anlage Plant with box with high protection and method for remotely operating this facility |
| 06/19/2008 | DE102004038564B4 Schaltung und Verfahren zum Erfassen einer Temperatur und Gerät Circuit and method for detecting a temperature and device |
| 06/18/2008 | CN201075837Y Radio frequency remote control receiving switch with magnetic retaining relay |
| 06/18/2008 | CN201075834Y High power alternating current frequency conversion apparatus for coal mining machine drag system |
| 06/18/2008 | CN201075833Y Rotating and circling frequency conversion apparatus for single direction high voltage alternating-current/direct-current input |
| 06/18/2008 | CN201075832Y Auxiliary power source of combination switch |
| 06/18/2008 | CN201075831Y Alternating current and overpressure resistant resonance step-up apparatus for generator |
| 06/18/2008 | CN201075829Y High potential insulation pump supply power for outputting multi electric voltage |
| 06/18/2008 | CN201075692Y Combining pressure regulating type electricity saver |
| 06/18/2008 | CN201075689Y Power saving protecting device composed of pressure regulating type and frequency conversion type electricity savers |
| 06/18/2008 | CN201075687Y Power saving protecting device composed of system type and pressure regulating type electricity savers |
| 06/18/2008 | CN201075685Y Combining pressure regulating type electricity saver |
| 06/18/2008 | CN201075684Y Combining pressure regulating type electricity saver |
| 06/18/2008 | CN101203995A Power system with redundant power supply apparatus |
| 06/18/2008 | CN101202502A AC/DC switch voltage-stabilizing circuit |
| 06/18/2008 | CN101202494A Device and method for auto linear error compensating of electric voltage /frequency converter |
| 06/18/2008 | CN101201017A High-speed high-pole count generators |
| 06/18/2008 | CN100395952C Drag transmitting and transforming equipment |
| 06/17/2008 | US7388765 Method and arrangement in connection with a half-controlled network bridge |
| 06/17/2008 | US7388364 Device for covering the peak load |
| 06/17/2008 | US7388353 Discharging system for smoothing capacitor |
| 06/12/2008 | WO2007077433A3 Power supply |
| 06/12/2008 | WO2007077426A3 A method of regulating an ac signal |
| 06/12/2008 | US20080137383 Two-phase power converter apparatus and method |
| 06/12/2008 | US20080136185 Excitation voltage supply for synchronous generator used in a wind turbine, and method of starting a wind turbine having such excitation voltage supply |
| 06/12/2008 | DE102007058969A1 Umsetzvorrichtung Relocating |
| 06/12/2008 | DE10005449B4 Überspannungsschutzvorrichtung für einen Matrixumrichter Overvoltage protection device for a matrix converter |
| 06/11/2008 | EP1931022A2 Refrigerating apparatus and an inverter device used therein |
| 06/11/2008 | EP1931021A2 Collection and transmission system |
| 06/11/2008 | EP1929615A1 Load resonant type power supply for ozonizer |
| 06/11/2008 | EP1929614A2 System and method of reducing harmonic effects on a power delivery system |
| 06/11/2008 | CN101197552A Motor power device and a motor including the same |
| 06/11/2008 | CN101197543A Controllable green electric power adopting novel regulation and transformation method |
| 06/11/2008 | CN101197542A Control device for an alternating current direct voltage changer |
| 06/11/2008 | CN101197503A Collection and transmission system |
| 06/11/2008 | CN100394665C Power system having generator driven by engine |
| 06/11/2008 | CN100394341C Washing machine controlled via power electronic circuit |
| 06/10/2008 | US7385438 Active filter for reduction of common mode current |
| 06/10/2008 | US7385372 Auxiliary bus system |
| 06/05/2008 | WO2008064716A1 Active brake unit |
| 06/05/2008 | US20080128087 High frequency power supply device and high frequency power supplying method |
| 06/04/2008 | EP1928082A2 Power system fault characterization using transformed values |
| 06/04/2008 | EP1928081A2 Power supply apparatus, methods and computer program products using D-Q domain based synchronization techniques |
| 06/04/2008 | EP1928080A2 Excitatiion voltage supply for synchronous generator used in a wind turbine, and method of starting a wind turbine having such excitation voltage supply |
| 06/04/2008 | CN201069464Y Multi-purpose testing power |
| 06/04/2008 | CN101192747A No contact long life soft start energy-saving distribution box |
| 06/04/2008 | CN100392975C Current control method |
| 05/28/2008 | EP1472779B1 Voltage source with capacitor |
| 05/28/2008 | CN201066824Y Three-phase controllable silicon voltage and power adjuster |
| 05/28/2008 | CN201066823Y Power saver |
| 05/28/2008 | CN201064737Y Three-phase high voltage power supply for electric precipitation |
| 05/28/2008 | CN101188400A A novel AC electromotor voltage reduction speed-adjusting circuit |
| 05/28/2008 | CN101188385A A five-level high-voltage frequency converter |
| 05/28/2008 | CN100391090C Circuit for controlling power supply voltage output range |
| 05/27/2008 | US7379313 Voltage conversion device |
| 05/27/2008 | US7379311 Inrush current control circuit |
| 05/22/2008 | WO2008060551A2 Wire-less inductive devices and methods |
| 05/22/2008 | WO2008059977A1 Electric power feeding system |
| 05/22/2008 | WO2007146292A3 Portable combination utility and power tool unit |
| 05/21/2008 | EP1923986A2 AC controller for electromagnetic switches |
| 05/21/2008 | EP1922804A1 Device for electron energy transfer |
| 05/21/2008 | EP1922803A1 Device for electron energy transfer |
| 05/21/2008 | EP1695434B1 Converter circuit with two partial converters |
| 05/21/2008 | DE102006053367A1 Verfahren und Vorrichtung zum Betrieb eines Umrichters, insbesondere für Windenergieanlagen Method and apparatus for operating a converter, in particular for wind energy installations |
| 05/21/2008 | CN201063918Y Non-polar universal type electromagnetic fluorescent lamp ballast |
| 05/21/2008 | CN201063544Y Pulsewidth modulation based intelligent variable-frequency power sources |
| 05/21/2008 | CN201063543Y Full frequency AC-AC frequency converter |
| 05/21/2008 | CN201063542Y Phase-shift control device and phase transformer using the same |
| 05/21/2008 | CN201063534Y Soft starting and commutation integrated device for switch power supply |
| 05/21/2008 | CN201063523Y Flashboard type controller case device for high voltage frequency converter |
| 05/21/2008 | CN201061732Y Inversion type crude oil dehydration electric power |