| 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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| 06/15/2011 | EP1780886B1 Ac rotary machine constant measuring apparatus |
| 06/15/2011 | CN201869158U Alternating current servo drive being compatible with multiple position feedbacks and supporting multiple bus protocols |
| 06/15/2011 | CN201869157U Multiloop DC power supply parallel input variable frequency control device for electromobile |
| 06/15/2011 | CN201869153U Drive controller for permanent magnet synchronous motor of electromobile |
| 06/15/2011 | CN102098001A Controllable dual-power parallel asymmetric inverter for single phase induction motor |
| 06/15/2011 | CN102097958A Power supply circuit, motor drive device using the same and refrigeration device |
| 06/15/2011 | CN101478284B Motor system capable of lowering common mode noise |
| 06/15/2011 | CN101272125B Motor drive system with fault tolerance function |
| 06/15/2011 | CN101073197B Multi-phase current supplying circuit, driving apparatus, compressor, and air conditioner |
| 06/14/2011 | US7960938 Method and apparatus for determining motor rotation status |
| 06/14/2011 | US7960937 Inverter unit, integrated circuit chip, and vehicle drive apparatus |
| 06/09/2011 | DE102009047616A1 Wechselrichteranordnung zum Betreiben eines Elektromotors Inverter device for operating an electric motor |
| 06/09/2011 | DE102009047573A1 Electrical drive device for turbo-compressor utilized in fuel cell unit of motor vehicle, has electric motor connected with power source via bridge circuit, where bridge circuit comprises inverters built into full-bridge circuit |
| 06/08/2011 | CN201860294U Alternating-current servo driver capable of realizing energy feedback |
| 06/08/2011 | CN201860293U Frequency conversion speed adjustment control device of an oil sucking machine |
| 06/08/2011 | CN201860286U Control system for pumping unit in oil field |
| 06/08/2011 | CN201860285U Controller for motor with no position sensor of artificial assistant heart system |
| 06/08/2011 | CN101370683B Electric motor drive apparatus and vehicle including the same |
| 06/08/2011 | CN101299590B Anti-windup control for a current regulator of a pulse width modulation inverter |
| 06/08/2011 | CN101295960B Method and system for operating a motor to avoid selected pulse ratio values |
| 06/08/2011 | CN101218738B Variable speed drive for a chiller system |
| 06/07/2011 | US7956569 Double ended inverter system with an impedance source inverter subsystem |
| 06/07/2011 | US7956563 System for using a multi-phase motor with a double-ended inverter system |
| 06/07/2011 | US7956562 Motor and motor drive system |
| 06/03/2011 | WO2011065406A1 Ac motor drive-control apparatus and reference magnetic-flux calculation device |
| 06/03/2011 | WO2011065165A1 Control device of motor drive device |
| 06/03/2011 | WO2011064846A1 Electric vehicle power conversion device |
| 06/02/2011 | US20110127936 Voltage booster apparatus for power steering system |
| 06/02/2011 | US20110127935 Drive unit |
| 06/02/2011 | US20110127933 Control device for electric motor drive device |
| 06/01/2011 | EP2327133A2 Electric actuator including two current-controlled voltage inverters powering an electric machine, and reconfigurable in the presence of a defect |
| 06/01/2011 | DE10204110B4 Motortreiberschaltkreis und Verfahren zur Steuerung des Motortreiberschaltkreises Motor driver circuit and method for controlling the motor driver circuit |
| 06/01/2011 | CN201851101U Experimental measurement platform system applicable to high-power transmission and communication system |
| 06/01/2011 | CN201851086U Frequency conversion paraffin cleaning hoist |
| 06/01/2011 | CN102084588A Method and device for optimizing space vector pulse width modulation |
| 06/01/2011 | CN102082547A Power conversion device |
| 06/01/2011 | CN102082546A Device and method for pulse width modulation (PWM) dead-zone compensation of inverter |
| 06/01/2011 | CN102082544A Bearingless synchronous reluctance motor torque and suspension force direct controller and construction method thereof |
| 06/01/2011 | CN102082542A VME (Versa Module Eurocard)-bus-based vector control system of three-phase asynchronous motor |
| 06/01/2011 | CN102082533A Motor driving circuit and motor equipped with the motor driving circuit |
| 06/01/2011 | CN102080663A Small direct current fan |
| 06/01/2011 | CN101454513B Vehicle for work |
| 06/01/2011 | CN101383584B 电动机控制装置 A motor control unit |
| 06/01/2011 | CN101288222B Motor drive system control device and electric vehicle using the same |
| 05/31/2011 | US7952317 Motor driving inverter circuit module, motor driving apparatus having the motor driving inverter circuit module, and inverter integrated circuit package |
| 05/31/2011 | US7952316 Variable frequency reduced speed variation electric drive |
| 05/31/2011 | US7952310 Controller of multi-phase electric motor |
| 05/30/2011 | CA2722827A1 Variable speed drive system |
| 05/26/2011 | WO2011041651A3 Electronic device control system and method |
| 05/26/2011 | WO2011019733A3 Controller and method for minimizing phase advance current |
| 05/26/2011 | US20110121775 Mitigation of Harmonic Currents and Conservation of Power in Non-Linear Load Systems |
| 05/25/2011 | EP2325992A1 Inverter device, inverter control system, motor control system and inverter device control method |
| 05/25/2011 | CN201846306U Variable frequency energy saver of three-phase fan |
| 05/25/2011 | CN201846305U Frequency conversion energy saver of three-phase injection molding machine |
| 05/25/2011 | CN201846304U Cascade topological frequency converter system |
| 05/25/2011 | CN201846303U Variable-frequency control cabinet for oil pumping device |
| 05/25/2011 | CN201846300U Closed loop vector control frequency converter |
| 05/25/2011 | CN201846293U Group control system for a plurality of variable frequency control motors |
| 05/25/2011 | CN1787721B Method for positioning power controlling device of electric driving power electronic power converter and apparatus thereof |
| 05/25/2011 | CN102077460A Pm motor driving power unit |
| 05/25/2011 | CN102077458A Method for determining the inductances of a permanent magnet synchronous machine |
| 05/25/2011 | CN102075139A Intelligent variable-frequency advanced control system of vibrating machinery with high vibrating intensity |
| 05/25/2011 | CN101479925B Vector control apparatus for induction motor, vector control method for induction motor, and drive control apparatus for induction motor |
| 05/25/2011 | CN101385226B Multiphase load control method |
| 05/25/2011 | CN101257270B Method and device for controlling motor, and image forming apparatus |
| 05/24/2011 | US7948206 Assembly comprising a three-phase machine and a frequency converter |
| 05/24/2011 | US7948205 Multi-phase AC motor driving device |
| 05/24/2011 | US7948201 Induction motor control device |
| 05/19/2011 | WO2011058703A1 Semiconductor device for inverter control, motor drive device, and air-conditioning equipment |
| 05/19/2011 | DE112009000813T5 Stromzuführungseinrichtung und Stromzuführungsanordnung Power supply device and power supply configuration |
| 05/18/2011 | EP2322374A1 Power conversion device |
| 05/18/2011 | CN201839257U Frequency-conversion and reactive-compensation comprehensive device |
| 05/18/2011 | CN201839246U System with simultaneous control on frequency conversion and power frequency of fan of kiln |
| 05/18/2011 | CN102067438A Motor control device and vehicle-steering device comprising same |
| 05/18/2011 | CN102064755A Control strategy applied to high speed motor |
| 05/18/2011 | CN102064753A Alternating current permanent-magnet synchronous machine controller |
| 05/18/2011 | CN102063787A Method and device for setting parameters of flame-proof frequency changer |
| 05/18/2011 | CN101594116B Double-core and split surge torsion runaway frequency conversion inhibiting system for high voltage motor of power plant |
| 05/12/2011 | WO2011054074A1 Brushless motor speed control system |
| 05/12/2011 | DE102009051490A1 Modular drive system for separately excited synchronous motor, has diode connected upstream to direct current voltage-sided connection of inverter unit such that current flows to winding of motor during error-free operation |
| 05/12/2011 | CA2780084A1 Electric drive and battery-charging power electronic system |
| 05/12/2011 | CA2777869A1 Control device, oil well with device and method |
| 05/11/2011 | EP2319724A1 Vehicle operation sound control apparatus and control method |
| 05/11/2011 | EP1964256B1 Method for controlling a polyphase voltage inverter |
| 05/11/2011 | CN201830200U Variable frequency speed regulation controller of induction motor based on singlechip |
| 05/11/2011 | CN201830199U Direct-current environmentally-friendly variable-frequency air conditioner |
| 05/11/2011 | CN201830198U AC (alternating current) servo motor speed control system based on DSP (digital signal processor) |
| 05/11/2011 | CN201830192U Mine hoist control system driven by permanent magnet motor |
| 05/11/2011 | CN201830149U Intelligent motive power electricity-saving device |
| 05/11/2011 | CN201824540U Variable frequency electricity economizer of single-phase injection molding machine |
| 05/11/2011 | CN102057229A Air conditioner, air conditioner manufacturing method, and compressor |
| 05/11/2011 | CN102056829A Power supply apparatus and power supply arrangement |
| 05/11/2011 | CN102055405A Brushless double feed motor control device and direct torque control method thereof |
| 05/11/2011 | CN101351956B Electric motor drive control method and apparatus |
| 05/11/2011 | CN101337514B Power inversion device for electric car |
| 05/11/2011 | CN101317203B Electromechanical actuator and its control method |
| 05/11/2011 | CN101227166B Induction motor controller |
| 05/11/2011 | CN101199107B 电压变换装置 Voltage converting means |
| 05/11/2011 | CN101174811B Electric motor control method and device adopting space vector pulse width modulation |
| 05/05/2011 | WO2011052253A1 Motor-driving apparatus for variable-speed motor |