| Patents for H02P 25 - Arrangements or methods for the control of ac-motors characterised by the kind of ac-motor or by structural details (7,591) |
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| 05/04/2011 | CN102045022A Stepless speed regulating circuit of single-phase alternating-current motor |
| 04/28/2011 | WO2011026792A3 Controllable direct current motor with a modified characteristic curve |
| 04/28/2011 | WO2010013226A3 Polyphase motor with variable number of poles |
| 04/27/2011 | EP2313968A2 Method and device for determining the operating state of an electric machine |
| 04/27/2011 | EP2313967A1 Resonance-based rotor position estimation |
| 04/27/2011 | EP1602170B1 Excitation circuit and control method for flux switching motor |
| 04/27/2011 | CN201813347U Energy saver of electromotor for oil field and oil well |
| 04/27/2011 | CN201813346U Intelligent electricity saving device |
| 04/27/2011 | CN102035460A Motor speed-adjusting device for water-cooled air conditioner |
| 04/27/2011 | CN102035459A Intelligent motor controller |
| 04/27/2011 | CN101542123B Inverter compressor operation method and compressor drive device |
| 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 | EP2312744A1 Power distribution systems |
| 04/20/2011 | CN201805398U Torque motor control device of cable drum of hanging fixture |
| 04/20/2011 | CN201805397U Permanent magnet motor controller |
| 04/20/2011 | CN102025315A Separation cooling type high-temperature superconducting linear motor driving device for rail transit |
| 04/20/2011 | CN102025314A Motor control device and washing machine |
| 04/19/2011 | US7928673 Generic motor control system |
| 04/14/2011 | WO2009077053A3 Arrangement having oscillating motor and method for controlling an oscillating motor |
| 04/14/2011 | US20110084637 Motor and drive control system thereof |
| 04/13/2011 | EP1709328B1 A linear motor, a linear compressor, a method of controlling a linear compressor, a cooling system, and a linear compressor controlling a system |
| 04/13/2011 | CN1685760B Drive mechanism |
| 04/13/2011 | CN102017396A Linear motor and reciprocating compressor employing the same |
| 04/13/2011 | CN102013871A Frequency variable electricity saver for three-phase injection molding machine |
| 04/12/2011 | US7923959 Rotor driving control device and image forming apparatus |
| 04/12/2011 | US7923958 Apparatus and method for driving 2-phase SRM motor |
| 04/07/2011 | WO2011040216A1 Control method and drive system of linear motor |
| 04/07/2011 | US20110080123 Linear-rotary actuators, actuator systems, and methods of operation therefor |
| 04/07/2011 | DE102010037045A1 Betriebssteuervorrichtung An operation control device |
| 04/07/2011 | DE102009043530A1 Elektrische Antriebswelle und Fahrzeug mit einer derartigen elektrischen Antriebswelle Electric drive shaft and vehicle with such an electric drive shaft |
| 04/06/2011 | CN201789468U Digital single phase motor controller |
| 04/06/2011 | CN102006004A Single phase fan frequency-conversion power-saving device |
| 04/06/2011 | CN102006003A Three-phase asynchronous motor economizer |
| 04/06/2011 | CN102003375A Safety system and method for pump and motor |
| 04/06/2011 | CN102003374A System and method for motor drive control pad and drive terminals |
| 03/31/2011 | DE102010037541A1 Mehrphasendrehmaschinensteuervorrichtung und ein diesselbe verwendendes Servolenksystem Multiphase rotary machine control device and a same-use power steering system |
| 03/30/2011 | EP2302785A2 Control of sinusoidally driven brushless DC (BLDC) motors |
| 03/30/2011 | CN201781330U Electric automobile motor and super capacitor control system based on digital signal processor (DSP) |
| 03/30/2011 | CN101999203A Electric motor |
| 03/30/2011 | CN101335499B Controlling method of 4 phase permanent magnet fault tolerant motor |
| 03/24/2011 | WO2011004369A3 Method and apparatus for ac motor control |
| 03/24/2011 | US20110068730 Motor control apparatus |
| 03/24/2011 | DE102009029396A1 Method for operating electric machine involves determining angular position of rotor or stator of electric machine by resolver formed at rotor winding and stator windings |
| 03/23/2011 | EP2297844A1 Method and apparatus for control of electrical machines |
| 03/23/2011 | CN201774493U Silicon controlled thyristor motor controller |
| 03/23/2011 | CN101990740A Electrically-powered actuator driving control apparatus and driving control method and vehicle having electrically-powered actuator driving control apparatus |
| 03/22/2011 | CA2609605C Apparatus and method for increasing efficiency of electric motors |
| 03/17/2011 | WO2011030628A1 Interface circuit, inverter apparatus, inverter system and transmission/reception method |
| 03/17/2011 | WO2011030499A1 Switched reluctance motor apparatus |
| 03/16/2011 | EP2295153A1 Oscillator drive control device, oscillator drive control method, and oscillator manufacturing method |
| 03/16/2011 | EP1645022B1 Pulse drive of resonant mems devices |
| 03/16/2011 | CN201766552U Single-phase water pump frequency conversion energy economizer |
| 03/16/2011 | CN201766551U Single-phase air compressor frequency conversion energy economizer |
| 03/16/2011 | CN201766550U Three-phase air compressor frequency conversion energy economizer |
| 03/16/2011 | CN201766549U Intelligent compatible type controlled silicon three-phase voltage-adjusting control module |
| 03/16/2011 | CN101283504B Electronic intermediate DC circuit |
| 03/10/2011 | WO2011026792A2 Controllable direct current motor with a modified characteristic curve |
| 03/10/2011 | WO2011026681A2 Method and device for determining a rotor position of a synchronous machine |
| 03/10/2011 | WO2011026578A2 Method for determining the rotor position of a synchronous machine with field-oriented control |
| 03/10/2011 | US20110058964 Linear motor and reciprocating compressor employing the same |
| 03/10/2011 | US20110057597 Electrical machine |
| 03/08/2011 | CA2548861C Linear motor door actuator |
| 03/03/2011 | WO2011024624A1 Distributed-arrangement linear motor and method for controlling a distributed-arrangement linear motor |
| 03/02/2011 | EP2290802A1 Regenerative switched reluctance motor driving system |
| 02/24/2011 | WO2011020650A2 Circuit assembly for a motor vehicle |
| 02/23/2011 | EP1836765B1 Transistor matrix switched reluctance variable speed motor drive |
| 02/23/2011 | CN101981802A Method for controlling of a multiphase electric motor operating in star-connected mode |
| 02/23/2011 | CN101981790A Linear motor unit and electronic component placing apparatus provided with the linear motor unit |
| 02/23/2011 | CN101401296B Apparatus and method for controlling hybrid motor |
| 02/17/2011 | WO2011018730A1 Method and device for adjusting the frequency of a drive current of an electric motor |
| 02/17/2011 | DE102009021926A1 Elektrohandwerkzeuggerät mit einem einen Kommutator und Schleifbürsten aufweisenden Elektromotor Electric hand tool with a commutator and brushes a having electric motor |
| 02/17/2011 | CA2771034A1 Method and device for adjusting the frequency of a drive current of an electric motor |
| 02/16/2011 | EP2284987A1 Method and device for adjusting the frequency of a drive current of an electric motor |
| 02/16/2011 | CN201750396U Intelligent three-phase motor power saver |
| 02/16/2011 | CN101978594A Servo motor position control device |
| 02/16/2011 | CN101977745A Mold clamping device |
| 02/16/2011 | CN101977014A Energy consumption-time optimal control method for linear motor servo system and established system |
| 02/16/2011 | CN101977013A Variable-frequency electricity saver of single-phase bending machine |
| 02/16/2011 | CN101436841B 电动机 Electric motor |
| 02/15/2011 | US7888904 Virtual moving air gap for an axial flux permanent magnet motor with dual stators |
| 02/10/2011 | DE112009000680T5 Servomotor-Positions-Regelvorrichtung Servo motor position control device |
| 02/09/2011 | CN201742369U High-efficient energy-saving device of motor |
| 02/09/2011 | CN201742278U Direct-current commutator type doubly salient reluctance motor |
| 02/09/2011 | CN101971483A Linear motor |
| 02/09/2011 | CN101969293A Three phase motor energy conservation regulating device |
| 02/09/2011 | CN101218740B Electromotor |
| 02/08/2011 | US7884563 Motor and drive control system thereof |
| 02/03/2011 | WO2011013093A1 Assembly comprising a switching system, synchronous machine, and variable-speed drive |
| 02/02/2011 | CN201733273U FFU fan variable-frequency speed-regulating controller |
| 02/02/2011 | CN201732705U Arc-less alternating-current relay device |
| 02/02/2011 | CN101964627A Drive arrangement of a motor with a plurality of stator windings |
| 02/02/2011 | CN101964626A Variable-frequency power saver of single-phase air compressor |
| 02/02/2011 | CN101961912A Variable-frequency power saver of single-phase injection molding machine |
| 01/27/2011 | US20110018477 Method and device for operating an electric drive with the aid of a phase angle control |
| 01/27/2011 | DE102010025961A1 Motor drive arrangement for converting high-performance motor into individual motor, has servo circuits calculating identical voltage commands based on identical current commands and total value or average value of current feedback signals |
| 01/26/2011 | EP2278700A1 System and method for controlling a double-star synchronous machine with unconnected neutrals |
| 01/26/2011 | CN201726357U Intelligent power-saving control system |
| 01/26/2011 | CN101960714A Self-calibration algorithms in a small motor driver IC with an integrated position sensor |
| 01/20/2011 | DE112009000809T5 Formklemm- bzw. Formschließvorrichtung Mold-clamping apparatus |
| 01/19/2011 | EP2276162A1 Method and control system for controlling a brushless electric motor |