| 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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| 03/25/1997 | US5614803 Inverter control apparatus |
| 03/20/1997 | WO1997010643A1 Method for controlling current of servomotor |
| 03/18/1997 | US5612605 Auto boost for voltage/frequency motor controller |
| 03/13/1997 | WO1997009776A1 Control device for electrical engines |
| 03/13/1997 | WO1997009773A1 Power converter and power converting method |
| 03/13/1997 | DE19636784A1 Control device for permanent magnet synchronous motor |
| 03/12/1997 | EP0762623A2 Power conversion apparatus |
| 03/12/1997 | EP0761492A1 Fail check device and method for AC motor control circuit |
| 03/11/1997 | US5610483 Control equipment for electric vehicle and control method thereof |
| 03/05/1997 | CN1144417A Driving device for induction motor |
| 03/04/1997 | US5608302 Apparatus for driving an AC motor at variable speeds |
| 02/27/1997 | WO1997007589A1 Process and device for operating an asynchronous motor |
| 02/26/1997 | EP0759373A1 Control system for electric vehicle |
| 02/26/1997 | EP0759225A1 Corrector, device and method for controlling electromagnetic torque in an asynchronous machine |
| 02/26/1997 | EP0759224A1 Method for controlling the power to be transferred via a mains inverter |
| 02/19/1997 | CN1143279A Converter circuit device |
| 02/12/1997 | CN1142708A Circuit arrangement for powering two-phase asynchronous motor |
| 02/05/1997 | CN1142136A Current-order type pulsewidth modulation transformer |
| 02/05/1997 | CN1033953C Continuous mill plant for rolling steel plates |
| 01/29/1997 | EP0756371A2 Current command type PWM inverter apparatus with logic circuit for generating switching command signals at periodical timings |
| 01/29/1997 | EP0711471B1 Process and device for compensating a fault voltage at a pulse-controlled inverter |
| 01/22/1997 | CN1140926A Driving device for induction motor |
| 01/09/1997 | WO1997001214A1 Bridge power converter |
| 01/09/1997 | CA2198089A1 Bridge type power converter |
| 01/08/1997 | CN1033777C Equipment for driving two motors |
| 01/07/1997 | US5592355 Motor control circuit |
| 01/02/1997 | EP0751613A1 Current controlling method for servo motor |
| 01/02/1997 | EP0751611A2 Power converter circuit |
| 01/02/1997 | EP0598921B1 Vector controller of induction motor |
| 12/27/1996 | CA2174386A1 Converter circuit arrangement |
| 12/25/1996 | CN1138776A Elevator controlling unit |
| 12/24/1996 | US5587891 For converting a dc voltage into ac phase voltages |
| 12/17/1996 | US5585708 Four quadrant motor controller minimizing distortion index |
| 12/11/1996 | EP0748037A2 Electronic motor controller with isolated gate drive and distributed power supply |
| 12/11/1996 | EP0747914A2 High frequency pulse transformer for an IGBT gate drive |
| 12/10/1996 | US5583411 Synchronous motor control system for electric vehicle |
| 12/04/1996 | EP0746091A1 Method to compute in real time a model of an induction machine supplied by an inverter |
| 12/04/1996 | EP0746089A1 Synchronous motor control system and method of controlling synchronous motor |
| 12/04/1996 | EP0746088A1 Synchronous motor control system |
| 12/04/1996 | EP0658266B1 Process and device for controlling with pulsed signals |
| 12/04/1996 | EP0556379B1 Motor controller |
| 12/03/1996 | US5581452 Pulse width modulation inverter current detection method |
| 12/03/1996 | US5580585 Hydraulic operational system for an injection molding machine |
| 11/27/1996 | EP0744824A1 Two-phase asynchronous motor supply circuit |
| 11/27/1996 | EP0744820A2 Circuit arrangement for feeding a load |
| 11/26/1996 | CA2060440C Ac motor drive system |
| 11/20/1996 | EP0743745A2 Controlling apparatus for induction motor |
| 11/13/1996 | CN1135679A Transforming device and air conditionor using said device |
| 11/12/1996 | US5574352 Frequency control method for inverter and apparatus therefor |
| 11/06/1996 | EP0741448A1 Soft start control method and device |
| 11/06/1996 | CN1135117A Rotation speed control unit for motor and method thereof |
| 10/30/1996 | EP0739457A1 Process and device for controlling an electric induction machine with a special winding for simultaneously generating a torque and a transverse force therein |
| 10/30/1996 | EP0597118B1 Control method for synchronous motor |
| 10/24/1996 | DE19615199A1 Control unit for inverter-fed induction motor |
| 10/23/1996 | EP0739078A2 Electromagnetic rotating machine |
| 10/15/1996 | US5565753 To detect imbalance between phase currents in a three phase motor |
| 10/09/1996 | EP0736234A1 Method and apparatus for transducerless flux, position and velocity estimation in drives for ac machines |
| 10/09/1996 | CN1032962C Apparatus for controlling speed of elevator |
| 10/03/1996 | WO1996030995A1 Variable speed ac motor drive for treadmill |
| 10/02/1996 | CN1032948C Power failure stop circuit for a converter |
| 09/24/1996 | US5559419 Motor drive system |
| 09/19/1996 | WO1996028884A1 Corrector, device and method for controlling electromagnetic torque in an asynchronous machine |
| 09/18/1996 | EP0732798A1 PWM control apparatus and a system using same |
| 09/11/1996 | EP0730721A1 Electronic control arrangement for motor-driven refrigeration compressors |
| 09/04/1996 | CN1032725C Apparatus for changing electric power of induction motor |
| 09/04/1996 | CN1032724C Energy saving control apparatus and control method for induction motor |
| 09/04/1996 | CN1032711C 压缩机 Compressor |
| 09/03/1996 | US5552976 EMI filter topology for power inverters |
| 08/21/1996 | CN1129371A Variable speed system |
| 08/20/1996 | US5548199 Optimal power supply for an electric motor |
| 08/20/1996 | US5548197 Method and apparatus for determining motor speed using zero crossing times |
| 08/14/1996 | EP0662266B1 Process and device for regulating a converter-powered, permanently excited synchronous motor |
| 08/14/1996 | CN1128709A Device for controlling electric vehicle |
| 08/08/1996 | DE19603341A1 Phase control unit for electric motor rotary speed control |
| 07/31/1996 | CN1127954A Method and apparatus for controlling motor |
| 07/30/1996 | US5541493 Method of controlling current for coil of synchronous motor |
| 07/18/1996 | DE19500847A1 AC field excited inverter motor operating method for three=phase slip-ring rotor machine |
| 07/17/1996 | CN1032343C AC motor drive system |
| 07/17/1996 | CN1032342C AC motor drive system |
| 07/16/1996 | US5537308 Digital current regulator |
| 07/16/1996 | US5537020 Method and apparatus for starting up a synchronous machine |
| 07/10/1996 | EP0720785A1 Electric motor |
| 07/04/1996 | WO1996020528A1 Apparatus and method for starting a synchronous machine |
| 07/02/1996 | US5532571 Control apparatus for induction motor |
| 07/02/1996 | US5532570 Variable speed control apparatus for induction motor |
| 07/02/1996 | US5532568 Method for braking an alternating-current motor |
| 06/26/1996 | EP0718143A1 Electric vehicle control system |
| 06/19/1996 | EP0716782A1 Variable speed motor controller |
| 06/19/1996 | CN1124796A Electric motor driving apparatus for sewing machine |
| 06/18/1996 | US5528114 Apparatus for driving two motors |
| 06/13/1996 | WO1996018287A1 Poly phase induction electrical rotating machine |
| 06/05/1996 | EP0714566A1 Efficient control system for electric motors |
| 06/05/1996 | CN1124072A Method and arrangement for controlling an induction motor |
| 06/04/1996 | US5523937 Frequency converter, procedure for controlling it and motor control using a frequency converter |
| 05/23/1996 | WO1996015580A1 Starter/generator system and method utilizing a low voltage source |
| 05/21/1996 | US5519301 Controlling/driving apparatus for an electrically-driven compressor in a car |
| 05/15/1996 | EP0711471A1 Process and device for compensating a fault voltage at a pulse-controlled inverter |
| 05/15/1996 | EP0711470A1 Method and arrangement for controlling an induction motor |
| 05/15/1996 | CN1122531A Motor unit, motor drive unit, fan unit and method of controlling the motor drive unit |
| 05/08/1996 | EP0710619A2 Procedure and device for monitoring and/or controlling the speed of an electric drive with frequency converter for lifting gears |