| 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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| 12/20/2007 | DE202007012310U1 Schaltungsanordnung zur Umschaltung zwischen zwei Spannungsstufen einer Spannungsversorgung Circuitry for switching between two voltage levels to a voltage supply |
| 12/20/2007 | DE19860721B4 Dreipunkt-Umrichter und Verfahren zu seinem Betreiben Three-point converter and method for its operation |
| 12/19/2007 | EP1816733A9 Method in frequency converter, and frequency converter |
| 12/19/2007 | CN200994079Y Automatic converting device of high-voltage variable frequency speed regulating dual-circuit AC power supply |
| 12/19/2007 | CN200991659Y Electric dust-collector high-pressure silicon rectifying system safety protection device |
| 12/19/2007 | CN101090254A Power factor compensation method of frequency conversion air conditioner |
| 12/18/2007 | US7310254 AC-to-AC (frequency) converter with three switches per leg |
| 12/18/2007 | US7310214 Inductive output tube (IOT) control circuit |
| 12/13/2007 | WO2007143610A2 Device for converting ac power to multiple dc outputs with retractable cords and multiple adapter tips |
| 12/13/2007 | WO2007143605A2 Electromagnetic noise suppression system for wye power distribution |
| 12/13/2007 | WO2007142009A1 Power conversion apparatus and compressor |
| 12/13/2007 | WO2007141349A1 Electronic power inverter stage |
| 12/13/2007 | US20070285950 Safety controller and input-output unit therefor |
| 12/13/2007 | US20070285028 Controllable Power Supply Circuit for an Illumination System and Methods of Operation Thereof |
| 12/13/2007 | CA2632108A1 Ride-through method and system for hvac&r chillers |
| 12/12/2007 | EP1864373A2 Solid state switching circuit |
| 12/12/2007 | EP1864372A2 Bridgeless boost converter with pfc circuit |
| 12/12/2007 | EP1864371A1 Matrix converter |
| 12/12/2007 | CN200990562Y Economic frequency changer |
| 12/12/2007 | CN200990561Y Feeder line bidirectional stepping automatic voltage regulator |
| 12/12/2007 | CN200990560Y Wide voltage range power supply device |
| 12/12/2007 | CN101087134A Electronic device with idle function and idle power supply system and power supply method |
| 12/12/2007 | CN101087108A A power unit bypass machine of high-voltage frequency conversion and speed-adjusting device |
| 12/12/2007 | CN101086226A Portable digital generating set structure |
| 12/12/2007 | CN101085601A Power supply system and method for rail vehicles, converter, pilot unit, air conditioner for said system |
| 12/12/2007 | CN100354993C Charge transfer apparatus and method therefor |
| 12/09/2007 | CA2585835A1 Power supply system and method for rail vehicles, converter, pilot unit, air conditioner for said system |
| 12/06/2007 | US20070281625 Communication Apparatus and Method |
| 12/06/2007 | US20070279954 Device For Converting AC Power To Multiple DC Outputs With Retractable Cords And Multiple Adapter Tips |
| 12/06/2007 | US20070279953 Multi-configurable, scalable, redundant battery module with multiple fault tolerance |
| 12/06/2007 | US20070279951 Electronic device with standby function, standby power supply system and method thereof |
| 12/06/2007 | US20070279947 High-Voltage Direct-Current Transmission Device |
| 12/06/2007 | DE102006060046A1 Elektrischer Umrichter Electric Drive |
| 12/05/2007 | EP1863160A2 Measurement of the current of a frequency converter |
| 12/05/2007 | CN200987125Y Intelligent semi-bridge driving high-frequency electronic transformer |
| 12/05/2007 | CN200986846Y Second-order transformer system |
| 12/05/2007 | CN200985863Y Wind energy electric generating apparatus of kitchen air draft equipment |
| 12/05/2007 | CN101083435A Self-activated switch power supply apparatus |
| 12/05/2007 | CN101083394A Lightning strike protection tarring device |
| 12/05/2007 | CN100353656C Small power spot welding power |
| 12/05/2007 | CN100353655C Digitally regulating power controller |
| 11/29/2007 | WO2007135968A1 High-voltage ac direct power converter |
| 11/29/2007 | US20070274115 Harmonics attenuator using combination feedback controller |
| 11/29/2007 | US20070274109 Power Supply System for Vehicle with Improved Energy Efficiency and Vehicle Including the Same |
| 11/29/2007 | US20070273429 System Of Controlling And Triggering A Triac And A Method Of Controlling The Triggering Of A Triac |
| 11/29/2007 | US20070273353 Power supply sense circuit, power supply system and integrated circuit |
| 11/29/2007 | US20070273155 Method for operating a frequency converter of a generator and wind energy turbine having a generator operated according to the method |
| 11/28/2007 | EP1509984B1 High-frequency generator |
| 11/28/2007 | CN200983559Y An electric tool and its using power supply system |
| 11/28/2007 | CN200983556Y An ultrasonic power supply |
| 11/28/2007 | CN200983555Y 一种冲击电流发生器 An impact current generator |
| 11/28/2007 | CN200983550Y Pre-charging circuit of transducer |
| 11/28/2007 | CN200983505Y Remote optical communication power supply device based on feedback optical cable |
| 11/28/2007 | CN101080127A Lighting control switch |
| 11/28/2007 | CN101079579A Digital high-voltage generator with any wave form |
| 11/28/2007 | CN101079578A 矩阵式变换器 Matrix Converter |
| 11/28/2007 | CN100352123C Frequency-variable transmission system |
| 11/27/2007 | US7301736 Method and device for shutting down a drive with a matrix converter during a power outage |
| 11/27/2007 | US7301315 Power supplying method and apparatus including buffer circuit to control operation of output driver |
| 11/27/2007 | US7301301 Electric car control apparatus |
| 11/22/2007 | WO2007133252A2 Tensioned aperture mask and method of mounting |
| 11/22/2007 | DE102006024594A1 Vorrichtung zum Versorgen elektrischer Verbraucher A device for supplying electrical loads |
| 11/22/2007 | DE102006023610A1 Anordnung zum Anschließen eines Elektromotors an ein Stromnetz und Verfahren zum Betreiben der Anordnung Arrangement for connecting an electric motor to a power supply and method of operating the arrangement |
| 11/22/2007 | DE10103538B4 Elektromotorisch angetriebenes Schienenfahrzeug mit Verbrennungsmotor A motor driven rail vehicle with a combustion engine |
| 11/22/2007 | CA2627528A1 Electronic control transformer using dc link voltage |
| 11/21/2007 | EP1858154A2 Motor control circuit for a power tool |
| 11/21/2007 | EP1858150A2 Modulation methods and apparatus for reducing common mode noise |
| 11/21/2007 | CN200980045Y A transformer-type high-voltage and large-power converter without imputing and outputting based on a cascade structure |
| 11/21/2007 | CN200980044Y A switch power supply circuit |
| 11/21/2007 | CN200979581Y A thyristor valves equivalent load testing circuit for a high voltage inverter |
| 11/21/2007 | CN101076937A Method and system for conveying filter compensation coefficient for digital power control system |
| 11/21/2007 | CN101075786A Double-stage and four-feet matrix transformer based on generalized carrier modulation and its modulation |
| 11/15/2007 | WO2007129756A1 Input/output duty control method for ac-ac direct conversion device |
| 11/15/2007 | WO2007129755A1 Switching pattern creating method for ac-ac direct conversion device |
| 11/15/2007 | DE102006050942A1 Power converter`s circuit arrangement, has controllable switching unit switched parallel at input side of each blocking diode so that direction of current is opposite to diode and bi-directional operation of power converter is enabled |
| 11/14/2007 | CN200976547Y Sine wave AC power supply voltage-regulating driver |
| 11/14/2007 | CN200976505Y Electric vehicle pulse fast charging machine |
| 11/14/2007 | CN200976115Y Sine wave AC power supply voltage regulating drive circuit |
| 11/14/2007 | CN101071987A Special power supply for AC loss test for superconducting magnet |
| 11/14/2007 | CN101071975A Dual three-level phase-shift high-voltage high-power frequency transformer |
| 11/14/2007 | CN101071163A Current converter test circuit |
| 11/14/2007 | CN101071162A Current converter test circuit |
| 11/13/2007 | US7295452 Active power factor correction circuit and control method thereof |
| 11/13/2007 | US7294989 Frequency converter overvoltage protection |
| 11/13/2007 | CA2174569C Asynchronous conversion method and apparatus for use with variable speed turbine hydroelectric generation |
| 11/08/2007 | WO2007125828A1 Matrix converter, and control method for the matrix converter |
| 11/08/2007 | US20070258275 Autotransformer AC/DC converter |
| 11/08/2007 | DE202007008056U1 Schaltungsanordnung eines Frequenzumrichters sowie eine mit einem solchen Frequenzumrichter ausgestattete Windkraftanlage Circuitry of a frequency and an equipped with such frequency wind turbine |
| 11/07/2007 | EP1852965A1 Apparatus and method of controlling synchronous reluctance motor |
| 11/07/2007 | CN200972563Y High-frequency mode power supply device for projector |
| 11/07/2007 | CN101068098A On-line analytic sine-wave AC electric source frequency changing method |
| 11/07/2007 | CN100347942C Motor power supply |
| 11/07/2007 | CN100347940C On-load smooth regulating trnsformer |
| 11/06/2007 | US7292463 DC-AC converter and controller IC therefor |
| 11/06/2007 | US7292004 Motor driving apparatus |
| 11/06/2007 | US7291986 Step sinusoidal voltage controlling method for hid, flourescent and incandescent light dimming applications |
| 11/01/2007 | WO2007123458A1 Motor control |
| 11/01/2007 | WO2007060083A3 Double universal dimmer |
| 11/01/2007 | US20070253231 Operating a Three Phase Device Using Single Phase Power |
| 10/31/2007 | EP1849231A2 Safety interlock and protection circuit for permanent magnet motor drive |