| Patents for H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage (13,284) |
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| 05/05/2011 | WO2011019696A3 Controller and method for estimating, managing, and diagnosing motor parameters |
| 05/05/2011 | US20110101907 Grounding system and apparatus |
| 05/05/2011 | US20110101898 Ac-dc converter, method of controlling the same, motor driver, compressor driver, air-conditioner, and heat pump type water heater |
| 05/05/2011 | US20110101897 Dc bus boost method and system for regenerative brake |
| 05/04/2011 | EP2317642A1 Motor control device and electric power steering device |
| 05/04/2011 | EP1587210B1 Motor and drive control device therefor |
| 05/04/2011 | CN201821318U Flameproof and intrinsically safe high-voltage variable-frequency speed regulator |
| 05/04/2011 | CN201821317U Frequency-conversion driven and controlled protection detecting and feedback circuit of mine hoist |
| 05/04/2011 | CN201821316U Dedicated load follow-up intelligent electricity-saving control cabinet for high-power conveyor belt |
| 05/04/2011 | CN1874141B Frequency conversion drive system of pulse width modulation in AC motor |
| 05/04/2011 | CN102047552A Motor control device and electric power steering device |
| 05/04/2011 | CN102046889A Swivel drive controller and construction machine including the same |
| 05/04/2011 | CN102046888A Swing drive controller and construction machine including the same |
| 05/04/2011 | CN102045026A H-bridge phase shift PWM control signal generator |
| 05/04/2011 | CN102045025A Control system for cooling fan of traction motor of locomotive |
| 05/04/2011 | CN102045024A Limp home operational mode for an electric vehicle |
| 05/04/2011 | CN102045023A Novel multifunction energy-saving frequency conversion control device for oil pumping machine in oil field |
| 05/04/2011 | CN102044904A Control network for single- or multi-motor actuators, network being particularly adapted to aviation applications such as powering the motors of landing-gear hook units |
| 05/04/2011 | CN101476802B Additional circuit of refrigeration system and its refrigeration system |
| 05/04/2011 | CN101286727B 电动机控制装置 A motor control unit |
| 05/04/2011 | CN101286726B Driving device for electric machine and control method for driving motor |
| 05/04/2011 | CN101214644B Frequency conversion electric tool |
| 05/04/2011 | CN101154911B Motor control device and motor drive system |
| 05/04/2011 | CN101145754B Current detecting unit and motor control device |
| 05/03/2011 | US7936146 Motor control device |
| 04/28/2011 | WO2011019730A3 Controller and method for transitioning between control angles |
| 04/28/2011 | US20110094821 Electrical power supply unit for vehicle |
| 04/27/2011 | EP2315349A1 Motor driver circuit and vacuum pump equipped with motor driver circuit |
| 04/27/2011 | CN102037640A Method for recovering power in a variable speed drive |
| 04/27/2011 | CN102035463A 6 kV medium voltage frequency converter based on neutral-point-clamped three-level technology |
| 04/27/2011 | CN102035462A Three-phase fan frequency conversion power saver |
| 04/27/2011 | CN102035461A Frequency conversion control system and method of paper shredder |
| 04/27/2011 | CN102035458A Current control method used for high-voltage transducer |
| 04/27/2011 | CN102035402A Integrated gate-commutated thyristor (IGCT)-based hybrid cascaded H-bridge multi-level high-voltage inverter |
| 04/27/2011 | CN102035399A Processing methods for separately adjusting voltage and frequency of frequency converter |
| 04/27/2011 | CN101542123B Inverter compressor operation method and compressor drive device |
| 04/27/2011 | CN101488727B Undisturbed switching variable frequency speed control system for medium voltage electric motor and speed control method |
| 04/27/2011 | CN101443995B Control device for AC rotary machinery |
| 04/27/2011 | CN101286686B Brushless motor |
| 04/27/2011 | CN101277091B Apparatus for feedback of sensor signal of high pressure frequency transformer |
| 04/26/2011 | US7932693 System and method of controlling power to a non-motor load |
| 04/26/2011 | US7932686 Drive device, hybrid vehicle equipped with the drive device, and control method for drive device |
| 04/26/2011 | CA2525269C Ac drive system for electrically operated vehicle |
| 04/21/2011 | US20110089873 Power supply device |
| 04/21/2011 | US20110089872 Dipolar axial compression permanent magnet motor |
| 04/21/2011 | DE102010028150A1 Elektromotorsteuerungsvorrichtung A motor control apparatus |
| 04/20/2011 | EP2312745A1 A system for driving asynchronously multiple motors by one inverter and for realizing frequency variation and speed adjusting of rotors |
| 04/20/2011 | EP2312743A1 Device and method for controlling ac electric motor |
| 04/20/2011 | EP2312160A2 Drive unit for compressor and refrigerator |
| 04/20/2011 | EP2312159A2 Drive unit for compressor and refrigerator |
| 04/20/2011 | CN201805404U Direct-current inversion speed regulation circuit of lithium battery locomotive |
| 04/20/2011 | CN201805403U Control circuit of 30 t narrow gauge industrial and mining trolley frequency-control locomotive |
| 04/20/2011 | CN201805402U Double-lifting-point hoist electrical synchronizer |
| 04/20/2011 | CN201805401U Variable-frequency electricity-saving device of electric motor |
| 04/20/2011 | CN201805400U Frequency converter applied to automatic winding machine |
| 04/20/2011 | CN201805399U Single-phase motor speed governor |
| 04/20/2011 | CN201805398U Torque motor control device of cable drum of hanging fixture |
| 04/20/2011 | CN201805315U Cooling system and motor controller including same |
| 04/20/2011 | CN201802359U Intelligent actuator for oil pumping unit |
| 04/20/2011 | CN201801229U Automatic paying out machine |
| 04/20/2011 | CN1630177B Electric power conversion device |
| 04/20/2011 | CN102027670A Motor control device, and electric steering device |
| 04/20/2011 | CN102026840A Electric vehicle control device |
| 04/20/2011 | CN102025319A Low inductance power electronics assembly |
| 04/20/2011 | CN102025318A Inverter and air-conditioner, washing machine and refrigerator adopting the same |
| 04/20/2011 | CN102025317A Motor drive device |
| 04/20/2011 | CN102025316A Direct torque control system for ceramic electricity spindle of digit control machine tool |
| 04/20/2011 | CN102025313A Vector control method based on counter potential feedforward control |
| 04/20/2011 | CN102023251A Current detecting method, inverter device and convertor device using the same |
| 04/20/2011 | CN101320958B Asynchronously and simultaneously implementing rotor variable-frequency control system by semi-bridge inverter driving multiple electric motors |
| 04/19/2011 | US7928620 Device for safeguarding an uninterruptible power supply of a magnet bearing in the event of failure of an electrical supply voltage |
| 04/14/2011 | WO2011011128A9 Digital pulse width modulated motor control system and method |
| 04/14/2011 | DE102009049055A1 Verfahren und System zum Elektroantrieb eines Fahrzeuges Method and system for electric drive a vehicle |
| 04/14/2011 | DE102009045351A1 Verfahren zum Betreiben eines Antriebsaggregats sowie Antriebsaggregat Method for operating a drive unit and drive unit |
| 04/13/2011 | EP1460756B1 Electrical load apparatus, electrical load control method, and computer-readable record medium with recorded program for enabling computer to control electrical load |
| 04/13/2011 | CN201797480U System for remotely controlling frequency of frequency converter in kiln |
| 04/13/2011 | CN102017395A Inverter control device and power conversion device |
| 04/13/2011 | CN102013873A Multi-functional integrated drive controller system |
| 04/13/2011 | CN102013872A Dynamic braking for current source converter based drive |
| 04/13/2011 | CN102013871A Frequency variable electricity saver for three-phase injection molding machine |
| 04/13/2011 | CN102013869A Current control device and method of alternating current asynchronous motor |
| 04/13/2011 | CN102013860A Control system of switch magnetoresistive electromotor |
| 04/13/2011 | CN102012472A Current leakage detector of construction machine |
| 04/13/2011 | CN101430167B Method and system for improving electric motor output transfer efficiency of direct air cooling system |
| 04/13/2011 | CN101326707B Inverter device |
| 04/13/2011 | CN101207337B Current measuring arrangement and method of a frequency converter |
| 04/12/2011 | US7923960 Method for controlling a polyphase voltage inverter |
| 04/12/2011 | US7923945 Voltage control of upconverter in a motored vehicle drive |
| 04/07/2011 | WO2011040169A1 Control device |
| 04/07/2011 | WO2011040168A1 Control device for electric motor drive device |
| 04/07/2011 | WO2011040159A1 Control device for an electric motor drive device |
| 04/07/2011 | US20110080131 Control device |
| 04/07/2011 | US20110080124 Inverter apparatus, inverter control system, motor control system, and method of controlling inverter apparatus |
| 04/07/2011 | DE202011002192U1 Motorsteuerungsvorrichtung, Elektrowerkzeug und Programm The engine control apparatus, electric tools and program |
| 04/07/2011 | DE10344024B4 Amplitudendetektionsverfahren und Amplitudendetektionseinrichtung für Sensorlose Hochfrequenz-Impedanznachführungsalgorithmen Amplitude detection method and amplitude detecting means for sensor A high frequency Impedanznachführungsalgorithmen |
| 04/07/2011 | DE102010021488A1 Method for copper loss-optimal control and/or regulation of asynchronous machine, involves computing and defining control value of regulator and adapting voltage vector to regulator over control value |
| 04/06/2011 | EP2306105A1 Air conditioner, air conditioner manufacturing method, and compressor |
| 04/06/2011 | EP2063339B1 Control method of electromotor |
| 04/06/2011 | CN201789470U Variable-frequency reclaimed energy self-adaptive controller for well oil sucking machine motor |
| 04/06/2011 | CN201789469U Device for controlling motor through leading multi-channel battery pack to be connected in parallel with input frequency conversion for electric vehicles |