| 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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| 09/22/2010 | CN101841188A Hybrid power supply uninterruptible inverted power supply of power feedback type optical network |
| 09/22/2010 | CN101316075B Heating power supply device of man-made diamond pressing machine |
| 09/22/2010 | CN101267186B Systems and methods for improved motor drive power factor control |
| 09/21/2010 | US7800929 Control method for PWM cyclo-converter by selectively turning on a two-way semiconductor switch and controller |
| 09/21/2010 | US7800924 Power converter apparatus and methods using neutral coupling circuits with interleaved operation |
| 09/15/2010 | CN201584903U Electro-brush plating power supply with function of remote control |
| 09/15/2010 | CN201584902U Power generation output transformation device capable of being connected with municipal power grid |
| 09/15/2010 | CN201584901U Phase converter |
| 09/15/2010 | CN201584900U Multi-gear adjustment input electromagnetic voltage regulation type electricity-saving appliance |
| 09/15/2010 | CN201584899U Topological structure of power electronic transformer |
| 09/15/2010 | CN201584898U Phase converter |
| 09/15/2010 | CN201582588U CCFL energy-saving bulb |
| 09/15/2010 | CN201582057U Household 2-KW air blower direct water pumping multi-use device with wind-solar hybrid generation and water pumping |
| 09/15/2010 | CN201579016U Stirring mill with ultrasonic cleaning function |
| 09/15/2010 | CN1989688B Method for operating a two-phase rotary current controller |
| 09/15/2010 | CN101836354A Reciprocating compressor |
| 09/15/2010 | CN101836353A Power conversion device |
| 09/15/2010 | CN101836352A Power conversion device |
| 09/15/2010 | CN101834532A High-voltage and high-power transducer |
| 09/15/2010 | CN101834531A Variable-frequency resonance high-voltage adjustable power supply |
| 09/15/2010 | CN101834530A High voltage power supply device |
| 09/15/2010 | CN101478242B Pulse controlling and state monitoring device for H bridge cascade high voltage transformer power unit |
| 09/14/2010 | US7796413 AC to DC Power converter for aerospace applications |
| 09/14/2010 | US7796411 Universal three phase controllers for power converters |
| 09/14/2010 | US7796410 Switching power supply unit |
| 09/09/2010 | DE102009011254A1 Frequenzrichter und Verfahren zur Herstellung eines solchen Frequency converter and method for producing such |
| 09/08/2010 | EP2226928A1 Semi-direct variable speed drive with N+1 power availability |
| 09/08/2010 | EP2226925A1 Indirect voltage link a.c. converter and method for manufacturing the same |
| 09/08/2010 | EP1470464B1 Extraction of accessory power from a signal supplied to a luminaire from a phase angle dimmer |
| 09/08/2010 | CN201577033U Automatic voltage switching circuit |
| 09/08/2010 | CN201577032U Low-voltage frequency conversion device |
| 09/08/2010 | CN201577031U High-frequency and high-voltage power supply control circuit |
| 09/08/2010 | CN201577030U PWM power amplifier for bipolar soft switch |
| 09/08/2010 | CN201577029U Student used experiment power supply |
| 09/08/2010 | CN1951011B A system and a method of controlling the triggering of a triac |
| 09/08/2010 | CN1792665B Electrization railway AC feed system |
| 09/08/2010 | CN101826804A Parallel-type permanent magnet direct-drive wind power converter in wind driven generation system and control method thereof |
| 09/08/2010 | CN101826803A Independent power supply module of liquid crystal display |
| 09/08/2010 | CN101826802A Electronic potential device |
| 09/08/2010 | CN101826801A Space vector modulating method of three-phase matrix converter |
| 09/08/2010 | CN101420181B Mixed excitation synchronous machine generating system |
| 09/08/2010 | CN101359873B Flyback voltage converter having self-driving synchronous rectifier |
| 09/08/2010 | CN101345484B Input current low frequency fluctuation controller of low frequency dynamic power supply |
| 09/08/2010 | CN101325374B Pwm controller and method |
| 09/07/2010 | US7791916 Prism-type electrical converter for the generation, transmission, distribution and suppy of electric current, and production method thereof |
| 09/07/2010 | US7791914 High efficiency power supply front end |
| 09/07/2010 | US7791913 Secondary side switch-off timing adjusting method, apparatus, and system using same |
| 09/07/2010 | US7791911 Inverter device which maintains voltage during input voltage drop |
| 09/02/2010 | WO2010097407A1 Light source applying a piezoelectric transformer |
| 09/02/2010 | CA2752816A1 A hybrid distribution transformer with an integrated voltage source converter |
| 09/01/2010 | CN201571249U Intelligent numerical control energy-saving dimming electronic ballast |
| 09/01/2010 | CN201571248U Wireless remote-control dimming electric ballast |
| 09/01/2010 | CN201570991U System for compensating maximum output power and flyback converter of switch power supply |
| 09/01/2010 | CN201570982U AC/DC isolating circuit of inverter uninterrupted power supply |
| 09/01/2010 | CN201570981U AC-DC isolation control circuit |
| 09/01/2010 | CN201570980U Transforming device |
| 09/01/2010 | CN1595291B Image reading apparatus and method, and X-ray imaging apparatus |
| 09/01/2010 | CN101821932A Direct type AC power converting apparatus |
| 09/01/2010 | CN101820225A Adjustable high voltage power supply for routine test station of main converter cabinet of locomotive |
| 09/01/2010 | CN101820224A Semiconductor generator |
| 09/01/2010 | CN101817316A Same-phase traction power supply system of electrified railway |
| 09/01/2010 | CN101394136B Industrial frequency phase shift apparatus |
| 08/31/2010 | US7787271 Power supply start-up and brown-out inrush management circuit |
| 08/31/2010 | US7787268 Power switching system to increase induction heating to a load from available AC mains power |
| 08/31/2010 | US7787266 Method for operating a frequency converter of a generator |
| 08/26/2010 | WO2010094547A1 Method and device for charging an intermediate circuit capacitor |
| 08/26/2010 | US20100214808 Power conditioning unit |
| 08/25/2010 | EP2221705A1 Programmable AC voltage regulator and stabilizer system, particularly for optimized control of lighting fixtures with fluorescent lamps and the like |
| 08/25/2010 | CN201563066U Electricity-saving power supply for electric resistance furnace |
| 08/25/2010 | CN201563065U Electric power conversion device |
| 08/25/2010 | CN201563064U 6kV/10kV star-delta changing dual-purpose transformer |
| 08/25/2010 | CN201562979U Wind electric field power output balanced device based on superconductive magnetic energy storage |
| 08/25/2010 | CN201560223U Gear simultaneous double-frequency induction quenching power supply |
| 08/25/2010 | CN1956303B Self powered gate driver system |
| 08/25/2010 | CN101814843A Power supply system |
| 08/25/2010 | CN101814842A High-frequency power supply switching circuit with adjustable drive current |
| 08/25/2010 | CN101814841A Synchronizing an inverter with an alternating voltage source |
| 08/25/2010 | CN101075786B Double-stage and four-feet matrix transformer based on generalized carrier modulation and its modulation |
| 08/24/2010 | US7782644 Method and apparatus for supplying power |
| 08/24/2010 | US7782643 Matrix converter apparatus |
| 08/24/2010 | US7781925 Electrical machine with electronic power unit for conversion |
| 08/19/2010 | WO2010092113A1 Power supply system |
| 08/19/2010 | WO2009045663A3 Portable device for generating two phases from a single electrical phase |
| 08/19/2010 | DE10308313B4 Halbleiterdiode, elektronisches Bauteil, Spannungszwischenkreisumrichter und Steuerverfahren Semiconductor diode, electronic component, voltage source inverter and control method |
| 08/19/2010 | DE102009060070A1 Schaltnetzteil mit wenigstens zwei in Serie geschalteten Kondensatoren Switching power supply with at least two series-connected capacitors |
| 08/19/2010 | DE102009008048A1 Verfahren zur Regelung eines selbstgeführten Netzstromrichters eines Spannungszwischenkreis-Umrichters Method for controlling a self-commutated power converter of a voltage-source converter |
| 08/19/2010 | DE102009000960A1 Verfahren und Vorrichtung zum Aufladen eines Zwischenkreis-Kondensators Method and apparatus for charging an intermediate circuit capacitor |
| 08/18/2010 | EP2218168A1 Apparatus and method for pulse sampling control |
| 08/18/2010 | EP2106633B1 System and method to extend synchronous operation of an active converter in a variable speed drive |
| 08/18/2010 | CN201557046U Underground electric transmission and transformation device for mine |
| 08/18/2010 | CN1736506B Spatially decoupled twin secondary coils for optimizing transcutaneous energy transfer (TET) power transfer characteristics |
| 08/18/2010 | CN101809855A Dynamic selection of oscillation signal frequency for power converter |
| 08/18/2010 | CN101807859A High-voltage insulation energy supply circuit and method |
| 08/18/2010 | CN101420174B Parallel resonance soft starting circuit and method |
| 08/18/2010 | CN101323048B Control method of electron-beam welder acceleration high-voltage power supply as well as power-supply apparatus |
| 08/17/2010 | US7778052 Method for operating a converter circuit and apparatus for implementing the method |
| 08/12/2010 | WO2010089186A2 Control circuit for a three-phase asynchronous motor |
| 08/12/2010 | WO2010088979A1 Method for regulating a self-commutated mains power converter of an intermediate voltage circuit converter |
| 08/12/2010 | US20100202168 Power supply circuit |
| 08/12/2010 | US20100201197 System and Method for Electrical Power Conversion |