| 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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| 07/14/2004 | EP1436508A1 Electronic control system and process for electromagnetic pump |
| 07/14/2004 | CN1157844C Driving control circuit for fume exhauster motor |
| 07/08/2004 | WO2004057750A1 Induction motor supply control device |
| 07/08/2004 | WO2004057747A1 Power conversion apparatus |
| 07/08/2004 | WO2004057739A1 Method for controlling operation of compressor and apparatus thereof |
| 07/08/2004 | WO2004031778A3 Revolution speed measurement/revolution speed control of a single-phase asynchronous motor and universal motor |
| 07/08/2004 | US20040130286 Reluctance motor and a method for controlling a reluctance motor |
| 07/08/2004 | US20040128781 Linear oscillator and electrically driven toothbrush |
| 07/07/2004 | CN1511370A Dual sided self-oscillation circuit for driving oscillation actuator |
| 07/06/2004 | US6759826 Control strategy for switched reluctance drive systems |
| 07/06/2004 | US6759822 Methods and apparatus to improve the performance of universal electric motors |
| 07/01/2004 | WO2004055960A1 Gas turbine engine starter generator with multiple windings on each exciter stator pole |
| 07/01/2004 | US20040126907 Alignment apparatus and exposure apparatus using the same |
| 07/01/2004 | US20040124806 System and method for inductance based position encoding sensorless srm drives |
| 06/30/2004 | EP1434335A2 Alignment apparatus and exposure apparatus using the same |
| 06/30/2004 | CN1509514A Linear oscillator and electrical driven toothbrush |
| 06/30/2004 | CN1509376A Control device of linear compressor drive system |
| 06/29/2004 | US6757129 Magnetic disk storage apparatus |
| 06/29/2004 | US6756759 Angle or position detecting apparatus, method thereof, servo apparatus, and servo method, and motor |
| 06/24/2004 | WO2004054087A1 Method for characterizing a rotating electromagnetic machine |
| 06/23/2004 | CN1507147A Apparatus for controlling driving linear motor and method thereof |
| 06/22/2004 | US6753665 Linear compressor drive device |
| 06/17/2004 | US20040113584 Motor control system |
| 06/16/2004 | CN1505864A Force control system |
| 06/16/2004 | CN1505253A Drive circuit for single-phase motor and drive method for single-phase motor |
| 06/10/2004 | WO2004049552A1 Method and apparatus for estimating rotor position and for sensorless control of a switched reluctance motor |
| 06/10/2004 | US20040108826 Method for characterizing a rotating electromagnetic machine |
| 06/10/2004 | US20040108825 Apparatus and method for controlling driving of linear motor |
| 06/10/2004 | US20040108824 Motor drive control apparatus |
| 06/08/2004 | US6747428 Device and method for controlling supply of current and static capacitance to compressor |
| 06/03/2004 | WO2004046550A1 A control system for the movement of a piston |
| 06/03/2004 | WO2004036755A9 Space vector pwm modulator for permanent magnet motor drive |
| 06/03/2004 | US20040105209 Circuitry configuration for an electromagnetic regeneration valve actuable by pulse-width modulation for venting the tank of a motor vehicle |
| 06/03/2004 | US20040104624 Linear motor drive unit for a machine |
| 06/03/2004 | US20040103719 Diagnostic system and method for an electric motor using torque estimates |
| 06/03/2004 | DE19824240B4 Steuereinrichtung für einen geschalteten Reluktanzmotor Controller for a switched reluctance motor |
| 06/03/2004 | DE10342584A1 Vorrichtung zum Messen des Magnetflusses eines Synchron-Reluktanzmotors sowie sensorfreies Steuerungssystem für einen solchen An apparatus for measuring the magnetic flux of a synchronous reluctance motor and a sensor-free control system for such a |
| 06/02/2004 | EP1423318A1 Arrangement for operating a contact roller and associated method for operating a contact roller |
| 06/01/2004 | US6744227 Vibration type actuator apparatus |
| 05/27/2004 | WO2004045060A2 Sensorless control of a harmonically driven electrodynamic machine for a thermoacoustic device or variable load |
| 05/27/2004 | WO2004045059A2 Multiphase motor having winding connections specific to respective operating speed ranges |
| 05/27/2004 | US20040101413 Control device of linear compressor drive system |
| 05/27/2004 | US20040100221 Field weakening with full range torque control for synchronous machines |
| 05/27/2004 | DE10343194A1 Alternative Antriebskraftanordnung mit einem Elektromotor mit mehreren Ankern Alternative driving force arrangement with an electric motor with multiple anchors |
| 05/27/2004 | DE10252507A1 Electric power supply for hybrid-drive motor vehicle, has power supply provided with two electrically isolated part-vehicle electric systems for supplying electrical consumer loads |
| 05/27/2004 | DE10114973B4 Werkzeugmaschine mit Spindel mit einer Vorrichtung zur Änderung der Speisespannung A machine tool with a spindle with a device for changing the supply voltage |
| 05/25/2004 | US6741803 Circuit and process for regulating the speed of universal electric motors |
| 05/25/2004 | US6741050 Method of controlling and switching for braking an electronically commutated electrical motor |
| 05/25/2004 | US6741047 Dual current-limiting circuit for DC brushless motor |
| 05/20/2004 | US20040095028 Sensorless control of a harmonically driven electrodynamic machine for a thermoacoustic device or variable load |
| 05/19/2004 | EP1016481B1 Control device for boring machine |
| 05/13/2004 | US20040090196 Multiphase motor having winding connections specific to respective operating speed ranges |
| 05/13/2004 | DE19939933B4 Elektronische Leistungs-Moduleinheit Electronic power module unit |
| 05/13/2004 | DE10251158A1 Commutator motor phase winding current determination procedure, involves using computer system model to calculate individual phase currents from single measurement |
| 05/12/2004 | EP1417746A1 Variable speed controller for air moving applications using an acinduction motor |
| 05/12/2004 | CN1496603A Electronically-commutated motor |
| 05/12/2004 | CN1495992A circuit for on-off reluctance motor |
| 05/11/2004 | US6735284 System for controlling motor and method for the same |
| 05/11/2004 | US6735038 Supply variance compensation method for switched voltage mode voice coil motor driver circuit |
| 05/11/2004 | US6734646 Driving circuit for electronically switched motors |
| 05/06/2004 | WO2004001945A3 Motor control system for adaptive current profile |
| 05/06/2004 | WO2003100957A9 Method, apparatus, and system for drive control, power conversion, and start-up control |
| 05/06/2004 | WO2003100956A9 Apparatus and method for identifying an operational phase and controlling energization |
| 05/06/2004 | US20040085040 Dual-stage drive for switched reluctance electric machines |
| 05/06/2004 | EP1416627A1 Control method of electric rotating machine for vehicle |
| 05/06/2004 | EP0988689B1 Reluctance motor |
| 05/06/2004 | DE10341106A1 System und Verfahren zur Motorsteuerung System and method for motor control |
| 04/29/2004 | US20040080296 Method and apparatus for determining phase current of switched reluctance electric machines |
| 04/29/2004 | US20040080291 Control method of dynamo-electric machine for vehicle |
| 04/29/2004 | US20040080229 Controlled reluctance AC induction motor |
| 04/29/2004 | US20040080221 Electric motor with variable rotation speed |
| 04/28/2004 | EP1414146A1 Interference suppression for an electric motor with variable rotation speed |
| 04/28/2004 | EP1413048A1 Method for controlling a variable-reluctance machine |
| 04/28/2004 | EP1413046A1 Adaptive control architecture for electric machines |
| 04/28/2004 | EP1020013B1 Linear motor compressor |
| 04/28/2004 | CN1492574A Motor driver and its driving control system |
| 04/27/2004 | US6727668 Precision brushless motor control utilizing independent phase parameters |
| 04/22/2004 | WO2004034562A1 Control method of generator |
| 04/22/2004 | WO2004034561A1 Circuit arrangement for controlling an oscillating electric motor |
| 04/22/2004 | WO2004033909A1 Overload protective apparatus of a compressor and a method thereof |
| 04/22/2004 | US20040075415 Electric motor |
| 04/22/2004 | US20040075413 Power converter device for one of several motor windings on reluctance motor |
| 04/22/2004 | US20040075406 Motor driving control device |
| 04/22/2004 | DE10246520A1 Control circuit and process for an oscillating electric motor in a small battery driven apparatus, has a four element full bridge between the power source and motor |
| 04/22/2004 | DE10118420B4 Antriebseinheit für eine Maschine Drive unit for a machine |
| 04/21/2004 | CA2415008A1 Electric motor |
| 04/20/2004 | US6724168 Apparatus and method for controlling rotation speed of synchronous reluctance motor |
| 04/15/2004 | WO2004031778A2 Revolution speed measurement/revolution speed control of a single-phase asynchronous motor and universal motor |
| 04/15/2004 | US20040072646 Rotary actuator |
| 04/15/2004 | US20040070364 System for controlling motor and method for the same |
| 04/15/2004 | US20040070357 Automatic control switch for an electric motor |
| 04/15/2004 | DE10243956A1 Schaltungsanordnung für ein pulsweitenmoduliert ansteuerbares elektromagnetisches Regenerierventil zur Tankentlüftung eines Kraftfahrzeugs Circuit arrangement for a pulse-width-modulated electromagnetic controllable regeneration valve for tank-ventilation of a motor vehicle |
| 04/15/2004 | DE10197212T5 Motorsteuerungssystem An engine control system |
| 04/14/2004 | EP1408606A1 An electric motor having regenerative braking |
| 04/14/2004 | CN1489278A Motor control system and method |
| 04/13/2004 | US6721496 Electrical resonance circuits for high efficiency direct current motors |
| 04/11/2004 | CA2444323A1 Automatic control switch for an electric motor |
| 04/08/2004 | WO2004030407A2 Drive mechanism |
| 04/08/2004 | US20040067050 PSC motor system for use in HVAC applications |
| 04/08/2004 | US20040066165 Motor control apparatus operable in fail-safe mode |