| 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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| 05/30/2002 | US20020063547 Current chopping in switched reluctance drive systems |
| 05/30/2002 | US20020062652 Apparatus and method for controlling linear compressor |
| 05/29/2002 | EP1209806A2 Current chopping in switched reluctance drive systems |
| 05/29/2002 | EP1209790A1 Switched reluctance drive operated from dual voltage sources and method for operating the same |
| 05/29/2002 | EP1208643A1 Electrical machines |
| 05/29/2002 | EP1208642A1 Electrical machines |
| 05/29/2002 | EP1208641A1 Encoderless rotor position detection method and apparatus in an electric motor |
| 05/29/2002 | EP1208636A1 Electrical machines |
| 05/29/2002 | EP1208635A1 Electrical machines |
| 05/29/2002 | CN1351400A Overload circuit protector |
| 05/28/2002 | US6396237 Position detection of switched reluctance machines |
| 05/23/2002 | WO2001041292A9 Method and apparatus for switching an ac machine between a drive and a power supply |
| 05/23/2002 | US20020060547 Speed control apparatus of synchronous reluctance motor and method thereof |
| 05/23/2002 | US20020060543 Chopping energization control device for electric motor |
| 05/22/2002 | EP1207618A1 Circuit for the speed recovery of a direct current motor and method using said circuit |
| 05/22/2002 | CN1350364A Apparatus and method for controlling speed for synchronous reluctance motor |
| 05/21/2002 | US6392379 Method of controlling a frequency converter of a reluctance machine |
| 05/21/2002 | US6392375 Method of driving with high precision a voice coil motor and related architecture |
| 05/16/2002 | WO2002039067A1 Angle or position determining device and method, servo device and servo method, and motor |
| 05/16/2002 | DE10066020A1 Verfahren zur schrittgenauen Positionierung von Zustellachsen oder Hilfsachsen einer bahnverarbeitenden Maschine Step process for accurate positioning feed axes or auxiliary axes of a web-processing machine |
| 05/14/2002 | US6388417 High stability dynamic force motor |
| 05/14/2002 | US6388356 Methods and apparatus for controlling electromagnetic flux in dynamoelectric machines |
| 05/10/2002 | WO2002037664A1 A control system for an induction motor, an electric motor and a method for controlling an electric motor |
| 05/10/2002 | WO2002036310A1 Electric tool with linear motor |
| 05/09/2002 | US20020053833 Electric motor |
| 05/09/2002 | US20020053832 Joint driving apparatus |
| 05/09/2002 | US20020053445 Power tool with a linear motor |
| 05/08/2002 | EP1204196A2 Joint driving apparatus |
| 05/08/2002 | DE10048083C1 Control method for universal electric motor uses 2 equal groups of half-waves with phase angle of one group shifted beyond voltage maximum and phase angle of other group corresponding reduced or increased |
| 05/07/2002 | US6384564 Electrical machines |
| 05/07/2002 | US6384549 Rotating electric motor system capable of vibrating and method for operating a rotating electric motor capable of vibrating |
| 05/06/2002 | CA2342962A1 Joint driving apparatus |
| 05/02/2002 | US20020051710 Apparatus and method for controlling operation of reciprocating compressor |
| 05/02/2002 | US20020051332 Apparatus and method for driving actuator |
| 05/02/2002 | US20020050804 XYZ-axes table |
| 05/02/2002 | EP1202423A2 Actuator drive circuit |
| 05/01/2002 | CN1346937A Device and method for controlling reciprocating compressor operation |
| 05/01/2002 | CN1084077C Starting of single phase motors |
| 04/30/2002 | US6380705 Chopping energization control device |
| 04/30/2002 | US6380702 Commutator motor control system |
| 04/25/2002 | US20020047734 Driving circuit for a voice coil motor and driving method thereof |
| 04/23/2002 | US6377015 Voice coil motor control apparatus for use in disk drives |
| 04/18/2002 | US20020043879 Linear motor, driving and control system thereof and manufacturing method thereof |
| 04/17/2002 | EP1198055A2 Linear motor, driving and control system thereof and manufacturing method thereof |
| 04/16/2002 | US6373650 Voice coil motor control circuit having alternative modes of operation and method of operation thereof |
| 04/16/2002 | US6373208 System for voltage regulation of a voice coil motor |
| 04/11/2002 | WO2002029967A1 Device for controlling an induction electrical motor power supply |
| 04/11/2002 | US20020041168 Apparatus and method for controlling an electric machine |
| 04/11/2002 | DE10047035A1 Leistungselektronisches Stellglied für Reluktanzmaschinen Power electronic actuator for reluctance machines |
| 04/10/2002 | EP1108120B1 Device for controlling a regulator |
| 04/09/2002 | US6369481 Polyphase reluctance motor |
| 04/03/2002 | EP1192705A1 Multi-resolution drive for actuators |
| 04/03/2002 | EP1019624B1 Method for controlling an electro mechanical regulating device |
| 04/02/2002 | US6366048 Method and arrangement for regulating the current in a switched reluctance machine |
| 04/02/2002 | US6363895 Device for controlling a regulator |
| 03/28/2002 | WO2000079671A8 Linear motor |
| 03/27/2002 | EP1191679A2 Power electronic circuit for reluctance machines |
| 03/27/2002 | EP1191678A2 Apparatus and method for driving actuator |
| 03/27/2002 | EP1191676A2 Process for determing the speed of an ac motor and motor control system |
| 03/21/2002 | WO2002023710A1 Pole-change type motor |
| 03/20/2002 | EP1188221A1 Linear motor |
| 03/19/2002 | US6359415 Apparatus for controlling synchronous motor |
| 03/19/2002 | US6359414 Method for controlling a reluctance motor |
| 03/19/2002 | US6359413 Current control system for a switched reluctance motor |
| 03/19/2002 | US6359412 Commutation apparatus and method for a four state sensorless switched reluctance machine system utilizing machine winding current sensing |
| 03/13/2002 | EP1187289A1 Control device for an electric motor powered by ac |
| 03/13/2002 | CN1339869A Device and method for controlling motor |
| 03/12/2002 | USRE37576 Single phase motor with positive torque parking positions |
| 03/07/2002 | WO2002019324A1 Scanning device comprising a magnetically guided linear motor |
| 03/07/2002 | DE10128698A1 Erregungssteuerungssystem eines Motors Excitation control system of an engine |
| 03/07/2002 | DE10047508C1 Motor revs measuring method determines actual revs from measured rise in winding current during separation of motor from supply voltage via phase-chopping control |
| 03/06/2002 | EP1184753A1 Circuit controlling a motor |
| 03/06/2002 | CN1339195A Method and apparatus for switching AC machine between drive and power supply |
| 02/28/2002 | US20020024793 Solenoid driving device |
| 02/28/2002 | US20020024316 Energization control device for electric motors |
| 02/27/2002 | EP1182771A2 Apparatus and method for controlling an electric machine |
| 02/26/2002 | US6351094 Control of switched reluctance machines |
| 02/26/2002 | US6351089 Control system for a linear vibration motor |
| 02/26/2002 | US6351053 Reluctance motors |
| 02/21/2002 | US20020021654 Scanning device comprising a magnetically guided linear motor |
| 02/21/2002 | US20020021103 Method and system for driving switched reluctance motors (SRM) |
| 02/14/2002 | US20020017891 Energization control system of a motor |
| 02/14/2002 | US20020017883 Force control system |
| 02/14/2002 | DE10036099A1 Verfahren zur Regelung einer elektrischen Maschine mit Pulswechselrichter Method for regulating an electrical machine having pulse inverter |
| 02/13/2002 | EP1034615B1 Commutator motor control system |
| 02/12/2002 | US6346790 Induction motor system with an induction motor and an electrically isolated voltage modulation motor controller |
| 01/31/2002 | WO2002009266A1 Method for controlling an electrical machine by means of a pulse-width modulation inverter |
| 01/29/2002 | US6342772 Drive circuit and method for driving a switched reluctance machine |
| 01/23/2002 | CN1078401C Hysteresis current controller for reluctance machine |
| 01/22/2002 | CA2130668C Method and apparatus for correcting hysteresis synchronous motor hunting |
| 01/17/2002 | US20020005705 Phase shifting network |
| 01/15/2002 | US6339310 Motor driving control device |
| 01/15/2002 | US6339308 Vector control method for synchronous reluctance motor |
| 01/15/2002 | US6339307 Method and regulator for electrical reluctance machines |
| 01/15/2002 | CA2267035C Current modulation motor controller |
| 01/09/2002 | EP1169773A1 Low cost brush motor driver in conjunction with low cost sr motor driver |
| 01/03/2002 | DE10124320A1 Stellglied mit steuerbarem Schub Actuator with controllable thrust |
| 01/03/2002 | DE10030130A1 Vorrichtung und Verfahren zur Steuerung und Regelung von Elektromotoren Apparatus and method for controlling and control of electric motors |
| 01/03/2002 | DE10029138A1 Locking device for prevention of use of hand-tool equipment, includes electronic lock containing a secret code |
| 01/02/2002 | EP1166431A1 Speed control for induction motor with variable voltage-frequency ratio |