| 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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| 04/06/2011 | CN201789424U Power supply and descaling device |
| 04/06/2011 | CN201789423U Power supply and electric appliance with water purifying function |
| 04/06/2011 | CN102007678A Converter control method |
| 04/06/2011 | CN102006703A Light-emitting diode (LED) lamp driving power supply |
| 04/06/2011 | CN102005939A AC power switching module |
| 04/06/2011 | CN102005938A Control method of bridge arm in UPS (uninterruptible power supply) in case of zero-crossing operation |
| 04/06/2011 | CN102005937A Adjustable optimized double-frequency high-pressure pulse-mode crude oil dehydration power supply based on waveform and control method thereof |
| 04/06/2011 | CN102005936A Control parameter optimization control system and method of crude oil dehydration power supply |
| 04/06/2011 | CN102005935A Great-power wind-power integration convertor suitable for cage asynchronous generator |
| 04/06/2011 | CN102005934A Reconfigurable power inverter for direct drive type permanent-magnet synchronous generating system |
| 04/06/2011 | CN102005933A On-line energy acquisition device of automatic transformation winding based on current transformer (CT) |
| 04/06/2011 | CN102005932A Processing board, interface board, signal processing device and signal processing method |
| 04/06/2011 | CN102005903A Digital current equalizing method of power source module, power source module and communication equipment |
| 04/06/2011 | CN102005802A Power frequency UPS (Uninterrupted Power Supply) isolation center line circuit |
| 04/06/2011 | CN101432956B Matrix converter, and control method for the matrix converter |
| 04/05/2011 | US7920395 Pulse width modulation method for a power converter |
| 04/05/2011 | US7920394 Method to create PWM switching with near zero common mode noise |
| 04/05/2011 | US7920392 Dynamic voltage sag correction |
| 03/31/2011 | US20110075465 Direct converter and system including a direct converter |
| 03/31/2011 | US20110075451 Power Semiconductor Module and Method for Operating a Power Semiconductor Module |
| 03/31/2011 | DE102010027866A1 Link voltage-converter has link-condenser with slight link and current supply-unit that has buffer condenser, where series connection has current-limiting component |
| 03/31/2011 | DE102009042690A1 Elektrische Schaltung insbesondere zur Erzeugung von elektrischer Energie Electrical circuit in particular for generating electrical energy |
| 03/30/2011 | EP2302781A2 Method for generating an output voltage with an adjustable rms value from a variable DC link voltage |
| 03/30/2011 | EP2302780A2 Frequency converter |
| 03/30/2011 | EP2302779A1 Direct-type converter and method for controlling the same |
| 03/30/2011 | EP2302778A1 Method and control device for controlling the output of a vacuum cleaner and vacuum cleaner with such a control device |
| 03/30/2011 | EP2302777A1 Electrical circuit, particularly for generating electrical energy |
| 03/30/2011 | CN201781454U Energy-saving device for starting equipment far away from power supply |
| 03/30/2011 | CN201781420U Electronic transformer |
| 03/30/2011 | CN201781419U Variable-frequency and variable-voltage power source |
| 03/30/2011 | CN201781418U Control power circuit for cascade connection type power unit of high-voltage frequency converter |
| 03/30/2011 | CN201781417U Cascaded high-voltage frequency converter PWM wave generation control system |
| 03/30/2011 | CN101998736A Driving device |
| 03/30/2011 | CN101997425A Simulation method for single four-quadrant converter |
| 03/30/2011 | CN101997424A Power conversion apparatus |
| 03/30/2011 | CN101995929A Power supply module |
| 03/29/2011 | CA2710581A1 Direct converter and system comprising such a direct converter |
| 03/24/2011 | US20110069520 Frequency converter |
| 03/24/2011 | US20110069519 Electrical circuit, in particular used for generating electrical power |
| 03/24/2011 | DE202010013049U1 Stromversorgungsvorrichtung für Elektrostauchmaschine A power supply apparatus for electric upsetting machine |
| 03/23/2011 | EP2299581A2 Frequency converter |
| 03/23/2011 | EP1618640B1 Method and apparatus for electrical power transfer |
| 03/23/2011 | CN201774731U Medical high frequency/voltage generator |
| 03/23/2011 | CN201774462U Precharge circuit of alternate-current inverting type high-voltage transducer |
| 03/23/2011 | CN201774461U Phase-locked switching high-voltage frequency converter pre-charging circuit |
| 03/23/2011 | CN201774460U Transformerless four-quadrant high-voltage frequency converter topological structure |
| 03/23/2011 | CN201774459U Topological structure of transformerless single-quadrant high voltage frequency converter |
| 03/23/2011 | CN201774458U MMC (modular multilevel converter)-based transformerless four-quadrant topological structure of high-voltage variable frequency power source |
| 03/23/2011 | CN201774457U Precharging circuit of thyristor voltage-regulating type high-voltage frequency converter |
| 03/23/2011 | CN101989832A Frequency control of motor speed driver of double-fed energy three-phase electric machine |
| 03/23/2011 | CN101989816A High-voltage variable frequency device |
| 03/23/2011 | CN101594061B High-voltage frequency converter of single-power unit redundancy and control method thereof |
| 03/23/2011 | CN101375490B Ride-through method and system for HVAC&R chillers |
| 03/17/2011 | WO2011029482A1 Inverter with commutation circuit |
| 03/17/2011 | WO2011029480A1 Fault current limitation in dc power transmission systems |
| 03/17/2011 | US20110063883 Inverter control circuit and interconnection inverter system having that inverter control circuit |
| 03/17/2011 | DE102009040745A1 Verfahren zur Regelung von Stromrichtern und Anordnung zur Durchführung des Verfahrens The method for controlling power converters and arrangement for performing the method |
| 03/16/2011 | EP2296437A1 Light adjustment circuit for alternating-current |
| 03/16/2011 | CN201766512U Delta serial compensation type alternating-current voltage-stabilizing power supply |
| 03/16/2011 | CN201766511U Iron core-free alternating current voltage stabilizer |
| 03/16/2011 | CN201766510U High-frequency & high-voltage power supply device |
| 03/16/2011 | CN201766509U Lightning-protection power supply device |
| 03/16/2011 | CN101345507B Energy-saving control device of megawatt level multifunctional aerogenerator |
| 03/15/2011 | US7907427 Inverter |
| 03/10/2011 | DE102010039508A1 Method for multiplexing two induction heating loads of circuit of household heating device by electronic switching device, involves deactivating two induction heating loads for prespecified time interval |
| 03/10/2011 | DE102010029496A1 Method for energy supply of a load in a deposition process, comprises providing first and second electrical variables by a first and second controllable electric ignition means, where the electrical variables differ itself in its amounts |
| 03/09/2011 | EP2293424A2 AC power switching module |
| 03/09/2011 | CN201758362U Equipment and frequency converter used for system state monitoring |
| 03/09/2011 | CN201758361U Power source device used for tests |
| 03/09/2011 | CN1989685B Traction converter having a line-side four-quadrant controller |
| 03/09/2011 | CN101136594B Control scheme for dc/ac cycloconverter |
| 03/08/2011 | CA2714315A1 Apparatus to control the speed of an induction motor for use with bathing appliances |
| 03/03/2011 | WO2011024668A1 Engine system |
| 03/03/2011 | WO2009034420A3 Power system and control method thereof |
| 03/03/2011 | US20110051481 Frequency converter |
| 03/03/2011 | US20110051480 20º PHASE-SHIFTING AUTOTRANSFORMER |
| 03/03/2011 | US20110051479 Systems and Methods for Controlling Phases of Multiphase Voltage Regulators |
| 03/03/2011 | US20110051474 Resonant power conversion apparatus |
| 03/03/2011 | US20110051013 Front-end circuit, tuner, and television broadcasting receiver |
| 03/02/2011 | EP2289160A2 Method and system for reducing switching losses in a high-frequency multi-cell power supply |
| 03/02/2011 | EP2289145A1 Regulation method for a high voltage dc transmission plant with dc link and self-commutated inverters |
| 03/02/2011 | CN201754367U 220 kV direct-reducing self-coupling shift rectifier transformer with saturation reactor therein |
| 03/02/2011 | CN1738172B Matrix type middle, high voltage variable-frequency power supply |
| 03/02/2011 | CN101359875B Multiple freedom degree dynamic control method for inverse transform bridge phase shifting advance angle of stationary frequency conversion starter |
| 03/02/2011 | CN101295918B Soft switching method for electric-controlled switch of three-phase AC input circuit |
| 03/01/2011 | US7898224 Method for switching low-power using AC and system for performing the same and power supply for using the system |
| 03/01/2011 | US7898116 Integrated-inverter electric compressor and inverter device |
| 02/24/2011 | WO2011022442A2 Power conversion with added pseudo-phase |
| 02/24/2011 | WO2011022304A1 Adaptive photovoltaic inverter |
| 02/24/2011 | US20110044077 3-phase high-power ups |
| 02/24/2011 | DE102010001275A1 Modular drive system, has pre-charge circuit comprising main protection device and series circuit of resistor, coefficient-resistor and protection device, where main protection device is electrically connected in parallel to series circuit |
| 02/24/2011 | DE102009037723A1 Verfahren zum Entladen eines Zwischenkreiskondensators eines Spannungszwischenkreis-Umrichters Discharging an intermediate circuit capacitor of a voltage-source converter |
| 02/24/2011 | DE102009036859A1 Modular static frequency changer system has control unit and power unit, where both are linked with one another by communication device |
| 02/24/2011 | CA2808490A1 Power conversion with added pseudo-phase |
| 02/23/2011 | EP2286949A1 Electronic system for optimizing energy transfer for welding equipments |
| 02/23/2011 | CN1950613B System and method for variable speed operation of a screw compressor |
| 02/23/2011 | CN101981799A Power assist device |
| 02/23/2011 | CN101981798A Power conversion device |
| 02/22/2011 | USRE42161 Power supply for light emitting diode array |
| 02/17/2011 | US20110038186 Digital control for controlling and linearizing an ac impedance |