| 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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| 08/29/2000 | US6111328 Switching assembly |
| 08/29/2000 | CA2215736C Motor control circuit |
| 08/29/2000 | CA2215090C Control circuit for two speed motors |
| 08/23/2000 | EP1030438A1 Control of switched reluctance machines |
| 08/23/2000 | CN1264213A Control for switch reluctance motor |
| 08/23/2000 | CN1055809C Speed control apparatus for switched reluctance motor |
| 08/22/2000 | US6108488 Speed control system for repulsion motor |
| 08/22/2000 | US6107774 Apparatus and method for controlling drive of three-phase multiplex winding motor |
| 08/22/2000 | US6107772 Sensorless switched reluctance motor control |
| 08/22/2000 | US6107764 Drive control for a switched reluctance motor |
| 08/22/2000 | US6107762 Speed control device for electrical motor-driven apparatus |
| 08/10/2000 | WO2000046912A2 Cross coupled motor gate drive |
| 08/10/2000 | DE19946050A1 Revolution rate regulation for switched reluctance motors involves PWM operation and switching static converter transistor during set period if motor in or close to stable state |
| 08/10/2000 | CA2326435A1 Cross coupled motor gate drive |
| 08/09/2000 | CN1262553A Speed controlling method for switch reluctance motor |
| 08/08/2000 | US6100823 Single sensor position encoder providing two levels of resolution |
| 08/02/2000 | EP1023768A2 Method and regulator for electrical reluctance machines |
| 08/02/2000 | EP1023533A1 Method for controlling an electromechanical actuating device |
| 07/27/2000 | DE19901642A1 Controlling capacitor motor for adjusting shutter or awning involves setting switch into rest state if voltage between auxiliary switch input and current source connection exceeds threshold |
| 07/26/2000 | EP1021860A2 A method of linearizing the performance of switched reluctance generators |
| 07/25/2000 | US6094020 Disk drive utilizing Bemf of spindle motor to increase VCM voltage during seeks |
| 07/25/2000 | US6093987 Appliance having an a.c. series motor and having switching means for switching this motor to different speeds |
| 07/19/2000 | EP1020985A1 Rotor position detection in switched reluctance machines |
| 07/19/2000 | EP1020022A1 Method of and system for controlling a variable speed induction motor |
| 07/19/2000 | EP1020020A1 Method for the starting and steady-state supply of a permanent-magnet synchronous motor particularly for driving a hydraulic pump |
| 07/19/2000 | EP1020013A1 Linear motor compressor |
| 07/19/2000 | EP1019624A1 Method for controlling an electro mechanical regulating device |
| 07/19/2000 | CN1260631A Detection for rotor position in magnetic resistance motor for switch |
| 07/18/2000 | US6091170 Starting of single-phase motors |
| 07/12/2000 | CN1259794A Stator winding structure of switching type reductance motor |
| 07/11/2000 | US6087799 Switching circuit for a reluctance machine |
| 07/05/2000 | EP1017156A1 Circuit device for driving an AC electric load |
| 07/05/2000 | EP1016481A1 Control device for boring machine |
| 07/04/2000 | US6084378 Variable slew rate pulse width modulation system |
| 06/29/2000 | WO2000038310A1 Method for digital control of a universal motor, in particular for electrical household appliance |
| 06/28/2000 | EP1014556A1 Control of switched reluctance machines |
| 06/28/2000 | CN1258129A Control of switching reluctance electric machine |
| 06/27/2000 | US6081112 Method and circuit for determining the velocity of a data detector mechanism of a mass storage device, or the like, using a BEMF voltage in the associated voice coil |
| 06/27/2000 | US6081092 Driver circuit for a synchronous, alternating current electric motor |
| 06/27/2000 | US6081083 Switched reluctance motor |
| 06/27/2000 | US6081080 Method and apparatus for reducing voltage stresses in electric machines |
| 06/22/2000 | WO2000036604A1 A method of controlling the speed of an arm of a disk drive |
| 06/20/2000 | US6078161 Current control apparatus in a switched reluctance motor |
| 06/20/2000 | US6078122 Reluctance machine with fractional pitch winding and drive therefore |
| 06/20/2000 | US6078114 Method and apparatus for vibration reduction/control in a variable reluctance linear motor |
| 06/13/2000 | US6075332 Predictive conductive angle motor control system for brake-by-wire application |
| 06/13/2000 | US6075329 Speed control device for a ceiling fan |
| 06/08/2000 | WO2000033088A1 Blended velocity estimation |
| 06/07/2000 | EP0672287B1 Voice coil motor control circuit and method |
| 06/06/2000 | US6072675 Control device for boring machine |
| 05/31/2000 | EP1004164A1 Method and system for varying and regulating a motor speed |
| 05/31/2000 | DE19949045A1 Motor driving circuit for reluctance type electric motor, has control unit which controls sum of current flowing through coils of each phase, detected by current sensor to predetermined value |
| 05/31/2000 | CN1053069C Control system for magnetic resistance switched electric machine |
| 05/30/2000 | US6070132 Position detecting apparatus |
| 05/30/2000 | CA2024666C Improvements in or relating to the control of linear motors |
| 05/25/2000 | WO2000030239A1 Electric motor |
| 05/25/2000 | CA2350491A1 Electric motor |
| 05/23/2000 | US6066935 Pole-changing asynchronous fan motor with continuously adjustable speed |
| 05/23/2000 | US6066074 Exercise apparatus and method |
| 05/18/2000 | WO2000028655A1 Soft turn-off controller for switched reluctance machines |
| 05/18/2000 | WO2000028334A1 Device and method for generating a partially synthesized signal with very good dynamic quality for the acceleration of a rotor in an electrical drive mechanism |
| 05/17/2000 | CN1253671A Apparatus for producing linear motion |
| 05/16/2000 | US6064174 Motor control circuit and method with digital level shifting |
| 05/11/2000 | WO2000027024A1 Apparatus for controlling synchronous motor |
| 05/11/2000 | WO2000027022A1 Sensorless rotor position detection for switched reluctance machines having irregular poles |
| 05/11/2000 | DE19851003A1 Einrichtung und Verfahren zur Gewinnung eines dynamisch hochwertigen, teilweise synthetisierten Signals für die Beschleunigung des Läufers eines Antriebs Apparatus and method for obtaining a high-quality dynamic, partially synthesized signal for the acceleration of the rotor of a drive |
| 05/11/2000 | CA2347807A1 Sensorless rotor position detection for switched reluctance machines having irregular poles |
| 05/10/2000 | EP0999632A1 Stop control device for single-phase asynchronous motor with capacitor |
| 05/09/2000 | US6061258 Monitoring of current in an inductive load, PWM driven through a bridge stage |
| 05/09/2000 | US6060858 C-dump switched reluctance hysteresis control |
| 05/09/2000 | US6060850 Electric motor control circuit |
| 05/09/2000 | US6060849 Current control system for an electric motor |
| 05/09/2000 | CA2212972C Control circuit for two speed motors |
| 05/04/2000 | WO2000025024A1 Electromagnetic blower and two-channel air supply device |
| 05/04/2000 | DE19952328A1 Driver controller for switched reluctance motor, has two switches connected to motor phase coil, which are responsive to position feedback signal, and position and current feedback signals respectively |
| 05/04/2000 | DE19851712A1 Supplying switched reluctance, transversal flux machines with integral commutation, involves passing magnetic energy between windings with assistance from induced voltages |
| 04/26/2000 | EP0995260A1 Rotating electric motor system capable of vibrating and method for operating a rotating electric motor capable of vibrating |
| 04/25/2000 | US6054819 Driving circuit for switched reluctance machines |
| 04/25/2000 | US6054783 Synchronous linear electric motor and method for determining the commutation offset of a linear drive with such a synchronous linear electric motor |
| 04/19/2000 | CN1051660C Method and apparatus for control of rotary magnet type polyphase synchronous motor |
| 04/18/2000 | US6051952 Electric motor speed and direction controller and method |
| 04/18/2000 | US6051946 Electrical angle detection apparatus, method of detecting electrical angle, and motor control apparatus |
| 04/18/2000 | US6051942 Method and apparatus for controlling a switched reluctance machine |
| 04/13/2000 | DE19846872A1 Linear motor, especially linear switched reluctance motor, has measurement arrangement connected to power coils to generate control signals depending on measured coil inductances |
| 04/13/2000 | DE19844830A1 Verfahren und Schaltungsanordnung zur Drehzahlsteuerung von Gleichstrom-Universalmotoren Method and circuit for speed control of dc universal motors |
| 04/12/2000 | CN1250244A Driver for switching reluctance motor |
| 04/11/2000 | US6049187 Speed control for brushless repulsion motor |
| 04/11/2000 | US6049181 Method and apparatus for reducing noise in a variable reluctance motor |
| 04/11/2000 | US6049146 Electromagnetic piston engine |
| 04/06/2000 | DE19939933A1 Leistungs-Moduleinheit Power module unit |
| 04/05/2000 | EP0991180A2 Method and circuit for speed control of an universal dc motor |
| 04/04/2000 | US6046561 Commutation control method for a switched reluctance machine |
| 03/30/2000 | DE19945656A1 Control circuit for motor, has phase coils excited selectively by single phase power source in which currents in both coils are displaced relatively in phase |
| 03/30/2000 | DE19843106A1 System zur Drehzahlsteuerung von Wechselstrom-Motoren System for speed control of AC motors |
| 03/29/2000 | EP0989666A1 System for speed control of AC motor |
| 03/29/2000 | EP0989665A1 Speed control device for brushless motor |
| 03/29/2000 | EP0989549A1 Method and apparatus for controlling a voice control motor in a hard disk drive |
| 03/29/2000 | EP0989548A2 Voice coil motor control circuit and method |
| 03/29/2000 | EP0988689A1 Reluctance motor |
| 03/29/2000 | CN1248817A System for controlling ac motor rotation speed |