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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08/12/2010 | DE202010004898U1 Der energiesparende Drehtransformator mit mehreren galvanisch getrennten Unterspannungswicklungen The energy-saving rotary transformer with multiple galvanically isolated low-voltage windings |
08/12/2010 | DE102004052454B4 Hochspannungsumrichter in Halbbrückenschaltung High-voltage converter in half-bridge circuit |
08/12/2010 | CA2750962A1 A hybrid distribution transformer with ac & dc power capabilities |
08/11/2010 | CN201550346U Electronic ballast fluorescent lamp with BED triode |
08/11/2010 | CN201550319U High power LED lighting precision driver |
08/11/2010 | CN201550029U Digital control type power converter for kitchen ranges |
08/11/2010 | CN201550028U High power direct electric heating intermediate frequency power supply without harmonic pollution |
08/11/2010 | CN201550027U Transformer voltage increasing and decreasing system |
08/11/2010 | CN201549351U Combined transformer |
08/11/2010 | CN101800483A Voltage converter |
08/11/2010 | CN101800479A Intelligently-annealing power source control device |
08/11/2010 | CN101800478A Cascade connection type power conversion device and power supply system |
08/11/2010 | CN101800477A Tin oxide electrode single-phase control heating systemand application method thereof |
08/11/2010 | CN101800123A High-frequency transformer of resistance welding machine |
08/11/2010 | CN101442255B Three-phase/biphase coordinates conversion method for frequency changer |
08/11/2010 | CN101409507B Method and apparatus for compensating dead zone of two-stage matrix converter based on carrier modulation |
08/11/2010 | CN101378227B Power unit for cascade apparatus |
08/11/2010 | CN101316073B Driving device and method |
08/10/2010 | US7773397 Method and system of controlling a power inverter |
08/05/2010 | WO2010086823A2 Dc/dc converter and ac/dc converter |
08/05/2010 | WO2010086793A1 Winding connection to supply three-phase power from a two-phase feeding and 2x3 distribution transformer |
08/05/2010 | WO2010086788A2 Converter for single-phase and three-phase operation, d.c. voltage supply and battery charger |
08/05/2010 | DE102005011580B4 Elektronischer Leistungssteller Electronic Power Controllers |
08/04/2010 | EP2214302A2 Motor drive control device |
08/04/2010 | EP2212990A2 Power control |
08/04/2010 | CN101796710A Direct type AC power converting device |
08/04/2010 | CN101795082A Megawatt direct-drive wind power grid-connection soft-switching converter |
08/04/2010 | CN101795081A Power electronic transformer having multi-winding isolation transformer |
08/04/2010 | CN101795080A Three-phase power electronics transformer for power distribution |
08/04/2010 | CN101795079A Power supply circuit and information processing apparatus |
08/03/2010 | US7768480 Plasma display device and capacitive load driving circuit |
07/29/2010 | US20100188875 High Voltage and Frequency Distributed Power System |
07/28/2010 | EP2211453A1 Induction Heating or Melting Power Supply Utilizing a Tuning Capacitor |
07/28/2010 | EP2210335A1 A multi- volt age power supply for a universal airplane ground support equipment cart |
07/28/2010 | CN101789703A High power variable frequency power supply device |
07/28/2010 | CN101789702A Power conversion systems and methods for controlling harmonic distortion |
07/22/2010 | WO2010082265A1 Power converting apparatus |
07/22/2010 | US20100182810 Alternating-current power supply device |
07/22/2010 | US20100182809 Apparatus, Systems, and Methods for Controlling Energy Converting Devices |
07/22/2010 | DE102009004723A1 Netzteil Power Supply |
07/21/2010 | EP2209180A1 Battery charger and method for its operation |
07/21/2010 | CN201533252U Three-phase three-wire linear power supply circuit |
07/21/2010 | CN201533245U Device capable of converting power-frequency power signals into optional-frequency electric signals |
07/21/2010 | CN201533244U High-frequency power source device for evenly outputting multi-group currents |
07/21/2010 | CN201533243U Alternating current drive system |
07/21/2010 | CN201533075U Power supply socket, power supply plug and electrical device |
07/21/2010 | CN1981425B Apparatus and methods for regulating delivery of electrical energy |
07/21/2010 | CN101783597A Dynamic reactive compensation device based on direct current side active structure and amplitude adjustment control |
07/21/2010 | CN101783596A Energy supply system and method of electronic type high-voltage electric mutual inductor |
07/21/2010 | CN101394134B Three-phase digital time division balance large power AC welding power source |
07/21/2010 | CN101166003B Electric tool and power supply power supply system using same |
07/20/2010 | US7760527 Device and method for controlling an electric power converter |
07/20/2010 | CA2577524C Power converter with active discharging for improved auto-restart capability |
07/15/2010 | WO2010079478A1 Solid state voltage regulator |
07/15/2010 | WO2010079234A1 Reconfigurable power converter module |
07/14/2010 | EP2207248A2 Solar power plant |
07/14/2010 | EP2206230A2 Inductive receivers for electrical devices |
07/14/2010 | CN201528461U Electric ballast for a full-voltage high-power factor energy-saving lamp |
07/14/2010 | CN201528392U Cable TV radio frequency amplifier with compatibility of 60V and 220V power supply |
07/14/2010 | CN201528282U Active inverter controller |
07/14/2010 | CN201528281U Diode clamp type tri-level frequency converter |
07/14/2010 | CN201528280U Full power direct-drive type flexible grid-connection current transformer for wind turbine |
07/14/2010 | CN201528279U Alternating-current power unit changing single phase into three phases |
07/14/2010 | CN201528278U AC-DC-AC railway power supply installation |
07/14/2010 | CN201528277U Signal output circuit working in a magnetic core saturation area |
07/14/2010 | CN201527578U Optical fiber control device for high-voltage frequency converter based on single chip microcomputer and CPLD |
07/14/2010 | CN101777842A Medium voltage frequency conversion power circuit system |
07/14/2010 | CN101777841A Multiple synchronous four-quadrant high-voltage converting device |
07/14/2010 | CN101777839A Switch power supply device applying piezoelectric transformer |
07/14/2010 | CN101777826A Converter device and auxiliary circuit used for same |
07/14/2010 | CN101777775A High-frequency isolation single-phase photovoltaic grid-connected system and control method thereof |
07/14/2010 | CN101777770A Control circuit for voltage dropping type power factor corrector |
07/14/2010 | CN101232254B Power transformer |
07/08/2010 | US20100172168 Power system |
07/08/2010 | US20100172162 Systems and methods for common-mode voltage reduction in fully regenerative ac drives |
07/08/2010 | US20100172161 Systems and methods for common-mode voltage reduction in ac drives |
07/07/2010 | EP2204901A1 Power conversion device |
07/07/2010 | EP2204900A1 Power conversion device |
07/07/2010 | CN201523327U Current converter capable of realizing high-voltage motor system energy feedback |
07/07/2010 | CN201522550U Electrified ageing energy-saving device of LED lighting power source |
07/07/2010 | CN101771356A UPS voltage compensation value-acquiring method and application thereof |
07/07/2010 | CN101770248A Intermittent power supply micropower standby control circuit |
07/06/2010 | US7751992 System of controlling and triggering a TRIAC and a method of controlling the triggering of a TRIAC |
07/02/2010 | CA2696927A1 Tac 1400 |
07/01/2010 | WO2010049231A3 Device for feeding a consumer network with the electric power of a supply network |
07/01/2010 | WO2010036666A3 Modular multi-pulse transformer rectifier for use in multi-level power converter |
07/01/2010 | US20100165674 Power conversion systems and methods for controlling harmonic distortion |
07/01/2010 | US20100164552 Ratio meter for temperature sensor |
07/01/2010 | DE202010000374U1 Anordnung zur Zustandsüberwachung Arrangement for condition monitoring |
06/30/2010 | CN201517463U Special generation power supply device for sewage treatment field discharge port |
06/30/2010 | CN101764525A Vector transducer with low electromagnetic interference |
06/30/2010 | CN101764524A Intelligent electric saving manager with low power consumption and management method thereof |
06/30/2010 | CN101306653B Traction power supply equipment based on PWM rectifier and control method |
06/30/2010 | CN101249806B Modular energy feedback type traction power set and control method |
06/24/2010 | WO2010069892A1 Matrix converter variable speed drive |
06/24/2010 | WO2010069891A1 Variable speed device of the matrix converter type |
06/24/2010 | DE112008001829T5 Dynamische Auswahl der Schwingungssignalfrequenz für Leistungswandler Dynamic selection of the vibration signal frequency for power converters |
06/24/2010 | DE102008064079A1 Electrical circuit producing method for producing electrical energy in e.g. gas turbine-power plant, involves interconnecting two poles of intermediate circuit by adjustable resistor when intermediate circuit voltage increases |
06/23/2010 | EP2198509A1 System for pre-charging a reservoir capacitor by means of a supply voltage and corresponding method |
06/23/2010 | EP2198507A1 Variable control device |