| 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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| 04/08/2004 | US20040064916 Buffering structure for wheels |
| 04/07/2004 | EP1406375A2 Electric motor driver and drive control system thereof |
| 04/07/2004 | CN1487663A Measurement for current change rate in switch reluctance motor |
| 04/07/2004 | CN1487504A Sensor for magnetic disc driving advice based on rotary vibrating speed |
| 04/06/2004 | US6717381 Control device for electric-powered motor and designing method thereof |
| 04/01/2004 | WO2004027529A1 Method for regulating the current flowing through an electromagnetic actuator |
| 04/01/2004 | US20040061472 Apparatus for measuring magnetic flux of synchronous reluctance motor and sensorless control system for the same motor |
| 04/01/2004 | US20040061385 Linear motor apparatus |
| 03/31/2004 | EP1402623A1 Rotational speed control for a universal motor having a reduced fluctuation of current |
| 03/31/2004 | CN1485975A Apparatus for measuring magnetic flux of synchronous reluctance motor and sensorless control system for the same motor |
| 03/30/2004 | US6714399 Method of controlling solenoid actuator |
| 03/25/2004 | WO2004025822A1 Control of an electrical reluctance machine |
| 03/25/2004 | WO2004025806A2 Control of electrical machines |
| 03/25/2004 | US20040055829 Tubular linear synchronous motor door and encoder-less control |
| 03/25/2004 | US20040055395 Measurement of the rate of change of current in switched reluctance machines |
| 03/25/2004 | DE10242790A1 Regulating current in electromagnetic final control element, e.g. for motor vehicle gearbox control, involves varying pulse width modulated switching signal on/off, superimposing low frequency dither function |
| 03/25/2004 | DE10241471A1 Separate control of induction motor thrust and normal forces, involves driving all inductor windings with input current characterized by frequency and effective value |
| 03/24/2004 | EP1400684A2 Circuit for a pulse width modulation controlled electromagnetic purge valve for venting a tank of a vehicle |
| 03/24/2004 | CN1484885A Pole-change type motor |
| 03/23/2004 | US6708563 Device for measuring rotor imbalance |
| 03/18/2004 | WO2004022944A2 Method and device for delivering high torque at low amperage |
| 03/18/2004 | WO2004001933A3 Motor with de-saturation winding |
| 03/18/2004 | US20040052125 Circuit for use with switched reluctance machines |
| 03/18/2004 | US20040051408 Electronically-commutated motor |
| 03/17/2004 | EP1398870A1 Four quadrant switched reluctance drive |
| 03/16/2004 | US6707268 Alternative drive power arrangement having an electric motor with multiple armatures |
| 03/16/2004 | US6705408 Power tool with a linear motor |
| 03/11/2004 | WO2004021376A1 Method for the wireless and contactless transport of energy and data, and corresponding device |
| 03/11/2004 | US20040046516 Load control device |
| 03/11/2004 | DE10245887A1 Noise reducing method for noise in electric machines, using electronic drive devices to preset phase currents so as to minimize an area of critical resonance frequency in a radial force spectrum |
| 03/11/2004 | DE10240080A1 Verfahren zum draht- und berührungslosen Energie- und Datentransport und zugehörige Vorrichtung A method for wireless and contactless energy and data transport and associated apparatus |
| 03/10/2004 | EP1396929A2 Measurement of the rate of change of current in switched reluctance machines |
| 03/10/2004 | EP1396077A1 Dual sided self-oscillation circuit for driving an oscillatory actuator |
| 03/10/2004 | EP1395763A2 Variable electromagnetic damping apparatus |
| 03/10/2004 | CN1481069A Means and method for controlling output of linear compressor |
| 03/09/2004 | US6703806 XYZ-axes table |
| 03/09/2004 | US6703725 Joint driving apparatus |
| 03/04/2004 | WO2003067739A9 Single phase induction motor with partially shared windings |
| 03/04/2004 | US20040042904 Apparatus and method for controlling output of linear compressor |
| 03/04/2004 | US20040041535 Inverter device |
| 03/04/2004 | DE10333092A1 Rotary actuator used in e.g. parking switching apparatus of motor vehicle, has retarder whose input shaft is interlocked with rotor shaft of synchronous motor, to constitute common shaft inside main housing |
| 03/02/2004 | US6700348 Single-phase switched reluctance motor driving apparatus and method |
| 03/02/2004 | US6700344 Method of controlling the speed of an arm of a disk drive |
| 03/02/2004 | US6700227 Direct electrodynamic linear drive |
| 03/02/2004 | CA2140065C Solid state motor speed control |
| 02/26/2004 | WO2003100948B1 Pmbdcm and two-phase srm motor |
| 02/26/2004 | WO2003085801A3 High phase order elctrical rotating machine with distributed windings |
| 02/26/2004 | US20040036999 Voltage-mode drive for driving complex impedance loads |
| 02/26/2004 | US20040036440 Switched reluctance motor and initial activating method thereof |
| 02/25/2004 | EP1391980A2 Method for starting a switched reluctance motor |
| 02/25/2004 | CN1478317A Vibration motor and apparatus using the same |
| 02/25/2004 | CN1477767A Electric motor driving controller |
| 02/25/2004 | CN1477766A Opening/closing reluctance motor and initial driving method |
| 02/24/2004 | US6696811 Method for regulating an electrical machine by means of a pulse-width modulation inverter |
| 02/19/2004 | WO2003043173A3 Motor controller |
| 02/19/2004 | DE10231773A1 Umrichter zum drehzahlvariablen Betreiben eines Kondensatormotors und Verfahren zum Steuern eines Kondensatormotors Inverter for variable-speed operation of a motor capacitor and method for controlling a capacitor motor |
| 02/18/2004 | EP1389827A1 Electrical machine |
| 02/18/2004 | EP1389362A1 Mesh connected electrical rotating machine with span changing |
| 02/18/2004 | CN1476159A Controlling of switch magnetic resistance driving device |
| 02/18/2004 | CN1139178C Circuit and method for reducing current extracted during motor starting |
| 02/17/2004 | US6693403 Power failure tolerant motor drives for dual voltage systems |
| 02/17/2004 | US6693400 Multi-mode motor controller chip set |
| 02/12/2004 | WO2004013952A1 Switched reluctance motor sensorless driver circuit |
| 02/12/2004 | US20040027078 Gas turbine engine starter generator with multiple windings on each exciter stator pole |
| 02/12/2004 | US20040027077 Gas turbine engine starter generator with switchable exciter stator windings |
| 02/05/2004 | WO2003100957A3 Method, apparatus, and system for drive control, power conversion, and start-up control |
| 02/05/2004 | US20040021437 Adaptive electric motors and generators providing improved performance and efficiency |
| 02/05/2004 | US20040021389 Pole-Change type motor |
| 02/04/2004 | EP1386388A1 Force control system |
| 01/29/2004 | WO2004010566A1 Linear motor device |
| 01/29/2004 | DE10229319A1 Verfahren zum Steuern eines oszillierenden Elektormotors eines elektrischen Kleingeräts A method for controlling an oscillating Elektormotors of a small electric device |
| 01/28/2004 | EP1385263A2 Control of a switched reluctance drive |
| 01/28/2004 | EP1385259A2 A system for high power drives |
| 01/28/2004 | CN1471221A Start of switching reluctance generator |
| 01/28/2004 | CN1136649C 电力组件 Power Components |
| 01/27/2004 | US6682310 Apparatus and method for controlling operation of reciprocating motor compressor |
| 01/22/2004 | WO2004008626A1 Control system for a linear vibration motor |
| 01/22/2004 | WO2004008623A1 Converter for rotational speed variable operation of a capacitor motor and method for controlling a capacitor motor |
| 01/22/2004 | DE10324846A1 Motorsteuerungsgerät Engine control device |
| 01/21/2004 | EP1208636B1 Control of an electrical reluctance machine |
| 01/20/2004 | US6680598 Circuit for the speed recovery of a direct current motor and method using said circuit |
| 01/20/2004 | US6680596 Electric motor having regenerative braking |
| 01/20/2004 | US6680590 Vibration motor and apparatus using the same |
| 01/15/2004 | US20040008004 Method for maximizing power output in permanent field synchronous motors |
| 01/15/2004 | US20040008003 Starting of switched reluctance generators |
| 01/14/2004 | EP1381149A2 Starting of switched reluctance generators |
| 01/12/2004 | WO2003054978A3 Vibrating linear actuator and portable information apparatus having the same |
| 01/08/2004 | WO2004004112A1 Method for controlling an oscillating electric motor of a small electrical appliance |
| 01/08/2004 | US20040005222 Driving apparatus of a linear motor |
| 01/07/2004 | EP1378989A1 Motor servo circuit |
| 01/07/2004 | EP1378046A1 Linear motor drive unit for a machine |
| 01/07/2004 | CN1465863A Device and method for controlling reciprocative compressor |
| 01/02/2004 | EP1376833A1 Linear oscillator and electrically driven toothbrush |
| 01/02/2004 | EP1374370A1 Sensorless switched reluctance electric machine with segmented stator |
| 01/01/2004 | US20040000883 Dual current-limiting circuit for DC brushless motor |
| 12/31/2003 | WO2004001953A1 Brushless motor control utilizing independent phase parameters |
| 12/31/2003 | WO2004001949A1 Adaptive control architecture for electric machines |
| 12/31/2003 | WO2004001948A1 System and method for determining the resonant frequency of an oscillating appliance, in particular a power toothbrush |
| 12/31/2003 | WO2004001945A2 Motor control system for adaptive current profile |
| 12/31/2003 | WO2004001933A2 Motor with de-saturation winding |