| 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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| 06/19/2008 | US20080143279 Electric Drive System |
| 06/19/2008 | DE112007000033T5 Elektrisches Antriebssteuerungsgerät und elektrisches Antriebssteuerungsverfahren Electric drive control apparatus and electric drive control method |
| 06/19/2008 | DE112006000988T5 Wechselrichter und Programmiervorrichtung für denselben Inverter and programming apparatus for the same |
| 06/19/2008 | DE102004050434B4 Hardwarebasierte konfigurierbare Bewegungssteuerungsvorrichtung und Verfahren Hardware-based configurable motion control apparatus and method |
| 06/18/2008 | EP1932233A1 Apparatus and method for driving 2-phase srm |
| 06/18/2008 | CN201075834Y High power alternating current frequency conversion apparatus for coal mining machine drag system |
| 06/18/2008 | CN201075691Y Combining frequency conversion type electricity saver |
| 06/18/2008 | CN201075690Y Power saving protecting device composed of filtering compensation type and frequency conversion type electricity savers |
| 06/18/2008 | CN201075689Y Power saving protecting device composed of pressure regulating type and frequency conversion type electricity savers |
| 06/18/2008 | CN201075688Y Power saving protecting device composed of system type and frequency conversion type electricity savers |
| 06/18/2008 | CN201075686Y Combining pressure regulating type electricity saver |
| 06/18/2008 | CN201074607Y Fan control structure |
| 06/18/2008 | CN201074605Y Primary and secondary shelves secondary velocity modulation electric fan |
| 06/18/2008 | CN201074578Y Drive device for DC frequency conversion compressor |
| 06/18/2008 | CN101204003A Power conversion control device, power conversion control method, and power conversion control program |
| 06/18/2008 | CN101202529A Electronic device and electric motor frequency converter |
| 06/18/2008 | CN101202528A Electronic device and electric motor frequency converter |
| 06/18/2008 | CN101202527A High precision velocity simulate given circuit |
| 06/18/2008 | CN101202526A Device of switch reluctance motor control of single electric current sensor and method of realizing |
| 06/17/2008 | US7388347 Method and inverter for controlling a direct current motor |
| 06/17/2008 | US7388346 Adjustment method of rotor position detection of synchronous motor |
| 06/17/2008 | US7388310 Synchronous electrical machine comprising a stator and at least one rotor, and associated control device |
| 06/12/2008 | US20080136380 Method for Controlled Application of a Stator Current Set Point Value and of a Torque Set Point Value for a Converter-Fed Rotating-Field Machine |
| 06/12/2008 | US20080136362 Drive System |
| 06/12/2008 | DE112006001999T5 Wechselrichtervorrichtung Inverter device |
| 06/11/2008 | CN201072858Y Induction motor control system and induction motor system |
| 06/11/2008 | CN201072207Y Household and commercial DC frequency converting air-conditioner controller |
| 06/11/2008 | CN101199107A 电压变换装置 Voltage converting means |
| 06/11/2008 | CN101197555A Electric car motor control method and fault-tolerance processing method for its rotor position detection |
| 06/11/2008 | CN101197546A Power conversion apparatus and motor drive system |
| 06/11/2008 | CN101197532A Refrigerating apparatus and an inverter device used therein |
| 06/11/2008 | CN101195347A Environment protection air conditioner of renewable energy sources for vehicle |
| 06/05/2008 | WO2008065978A1 Induction motor control device and its control method |
| 06/05/2008 | WO2008065719A1 Controller of ac rotating machine |
| 06/05/2008 | DE102006058179A1 Hochdruckreinigungsgerät und Verfahren zur Änderung von dessen Motorleistung High pressure cleaning equipment and procedures to amend its engine power |
| 06/05/2008 | DE102006056855A1 Elektronisches Antriebssystem für ein Aggregat eines Fahrzeugs An electronic drive system for a unit of a vehicle |
| 06/04/2008 | CN201069861Y Reverser speed-adjusting device for lifter |
| 06/04/2008 | CN201068859Y Frequency conversion screw type cold compressor three-support structure |
| 06/04/2008 | CN201068858Y Simplified type oil-submersible electric screw pump |
| 06/04/2008 | CN101194415A Controller of field winding type synchronous motor, electric drive system, electric four wheel driving vehicle, and hybrid automobile |
| 06/04/2008 | CN101192807A An intelligent controller for DC frequency conversion compressor and its control method |
| 06/04/2008 | CN101191651A Sine DC frequency conversion multi-split air conditioner control system and its control method |
| 06/04/2008 | CN100392550C Power-supply device and its control method |
| 06/04/2008 | CN100392540C High precision positioning and accessing system for waste nuclear material |
| 05/29/2008 | WO2008062665A1 Vehicle and on-vehicle drive device |
| 05/29/2008 | WO2008004177A3 Method for controlling a deceleration process of a dc motor and controller |
| 05/29/2008 | US20080122392 Methods and apparatus for providing motor control signals |
| 05/28/2008 | CN201066833Y A qualified medium pump for raw coal with frequency converter |
| 05/28/2008 | CN201066832Y An automatic canister netting machine |
| 05/28/2008 | CN201066830Y Car power-saving jack |
| 05/28/2008 | CN201066816Y Direct drive permanent magnetic AC brushless digital control electromotor for industrial sewer |
| 05/28/2008 | CN101188400A A novel AC electromotor voltage reduction speed-adjusting circuit |
| 05/28/2008 | CN101188391A Motor control apparatus |
| 05/28/2008 | CN101188388A 功率转换设备 Power conversion apparatus |
| 05/28/2008 | CN101188387A Electric power conversion device |
| 05/28/2008 | CN100391099C Power supply method of asynchronous machine |
| 05/28/2008 | CN100391098C Multiple functional integrated control system for electromotor |
| 05/28/2008 | CN100391096C System and method for controlling a permanent magnet electric motor |
| 05/27/2008 | US7379313 Voltage conversion device |
| 05/22/2008 | US20080116842 Method and apparatus for motor control |
| 05/22/2008 | US20080116841 Semiconductor device, motor drive device and air conditioning machine |
| 05/22/2008 | US20080116840 Pwm pattern sequence to reduce losses in voltage source inverters |
| 05/22/2008 | US20080116838 Inverter-integrated electric compressor |
| 05/22/2008 | US20080116832 Motor Control Device |
| 05/22/2008 | US20080116770 Drive circuits |
| 05/21/2008 | EP1923990A1 Motor drive system |
| 05/21/2008 | DE102007054338A1 Motoransteuervorrichtung und Verfahren Motor driving device and method |
| 05/21/2008 | CN201063584Y Variable-frequency driven rotary drill gyration and boost traveling system |
| 05/21/2008 | CN201063583Y Rotor variable-frequency control device with a plurality of function-varied motors |
| 05/21/2008 | CN201063582Y Electricity-saving equipment |
| 05/21/2008 | CN201063581Y Speed regulation device for motor |
| 05/21/2008 | CN201063580Y Power-saving device for sewing machine |
| 05/21/2008 | CN201063579Y Electric hand drill velocity modulation control circuit |
| 05/21/2008 | CN201063569Y Intelligent variable-frequency speed regulation device for oil pump |
| 05/21/2008 | CN201063543Y Full frequency AC-AC frequency converter |
| 05/21/2008 | CN101183850A Electricity-saving control method and device of frequency converter |
| 05/21/2008 | CN101183845A Electric motor speed controller for vehicle |
| 05/20/2008 | US7375490 Methods for managing electrical power |
| 05/15/2008 | WO2008056580A1 Superconductive rotating electric machine drive control system and superconductive rotating electric machine drive control method |
| 05/15/2008 | WO2008055741A1 Method and apparatus for current measurement in an in particular polyphase electrical system |
| 05/15/2008 | WO2008055515A1 Variable speed drive for subsea applications |
| 05/15/2008 | WO2007117428A3 A circuit for using the sign transitions of a motor phase and a motor phase back emf currents to control pwm |
| 05/15/2008 | DE102006052042A1 Steuerung und/oder Regelung eines 3-Phasen-Stromrichters für den Betrieb einer Asynchronmaschine Control and / or regulation of a three-phase power converter for operating an asynchronous machine |
| 05/14/2008 | CN201060426Y Power balance controller for multiple variable-frequency speed regulator for mine |
| 05/14/2008 | CN201059713Y Air-conditioning frequency conversion control circuit of Base station |
| 05/14/2008 | CN201059712Y Fixed speed air-conditioner working under low voltage |
| 05/14/2008 | CN201058664Y Watercraft aquatic translocation frequency changing control system |
| 05/14/2008 | CN101180788A AC rotating machine control device and method |
| 05/14/2008 | CN101180191A Load drive apparatus and motored vehicle having the same mounted thereon |
| 05/14/2008 | CN101179255A H-bridge inverter of AC motor |
| 05/14/2008 | CN101179254A Power-saving device of industry high speed seamer |
| 05/14/2008 | CN101179253A Three-phase clutch motor load three-phase operation, idle load single-phase operation method |
| 05/14/2008 | CN101179248A Motor driving device and method |
| 05/14/2008 | CN101179230A Method of compensating output current waveform distortion of soft switch three-phase PWM inverter |
| 05/14/2008 | CN101179221A Brushless dual-mechanical port motor |
| 05/14/2008 | CN101177036A Plastic jetting-moulding machine of drive current of adjustable motor, control apparatus and method |
| 05/14/2008 | CN100388621C Control system and method for speed-variable maximum delay clamping when using variable-delay random PWM switching |
| 05/13/2008 | CA2377980C Power supply circuit of an electric motor and corresponding control method |
| 05/08/2008 | WO2008053675A1 Electric motor car control apparatus |
| 05/08/2008 | WO2008053554A1 Electric motor car control apparatus |