| Patents for H02P 6 - Arrangements for controlling synchronous motors or other dynamo-electric motors with electronic commutators in dependence on the rotor position; Electronic commutators therefor (19,185) |
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| 09/09/1999 | DE19807435A1 Pulse width modulation control circuit for DC brushless fan |
| 09/08/1999 | EP0940917A1 Driving circuit with several sensors |
| 09/08/1999 | CN1227883A Electrical washing machine |
| 09/07/1999 | US5949211 Switched reluctance motor with indirect position sensing and magnetic brake |
| 09/07/1999 | US5949204 Method and apparatus for driving a brushless DC motor without rotor position sensors |
| 09/07/1999 | US5949203 Arrangement for generating drive signals for a multi-phase d.c. motor, lock detector, drive arrangement and disk drive |
| 09/07/1999 | US5949202 Distributed power supply for high frequency PWM motor controller with IGBT switching transistors |
| 09/02/1999 | DE19807253C1 Verfahren und Schaltungsanordnung zur Drehzahlerfassung von elektronisch kommutierten Lüftern Method and circuit for speed detection of electronically commutated fans |
| 09/01/1999 | EP0939473A2 Motor controller based on pwm system |
| 09/01/1999 | EP0938774A1 Method and apparatus for electronically commuting an electric motor |
| 08/31/1999 | US5946155 Disk apparatus using stop patterns to reliably determine a stop position |
| 08/31/1999 | US5945761 Switched reluctance motor |
| 08/31/1999 | CA2168163C Switched reluctance motor providing rotor position detection at high speeds without a separate rotor shaft position sensor |
| 08/26/1999 | WO1999043078A1 Method and circuit for measuring the rotation speed of electronically switched fans |
| 08/25/1999 | CN1227012A Actuation and control method and device, particularly for synchronous permanent-magnet motors |
| 08/24/1999 | US5942866 PWM control circuit for a DC brushless fan |
| 08/24/1999 | US5942863 Three-phase brushless servo motor |
| 08/19/1999 | WO1999041829A2 Constant-power brushless dc motor |
| 08/18/1999 | EP0936728A1 Control of a brushless motor containing asymmetries |
| 08/18/1999 | EP0829130B1 Switched reluctance motor with indirect position sensing and magnetic brake |
| 08/17/1999 | US5939905 For detecting when a control loop loses control |
| 08/17/1999 | US5939850 Circuit for driving polyphase motor |
| 08/17/1999 | US5939849 Motor speed controller |
| 08/12/1999 | WO1999031793A3 Regulation of and regulator for a permanent magnet synchronous motor |
| 08/12/1999 | WO1999029031A3 Method for controlling a permanent magnet synchronous motor |
| 08/12/1999 | WO1999027640A3 Method and circuit for generating a pulse-width modulated actuating signal for a direct current actuator |
| 08/11/1999 | EP0935336A2 Method and device for controlling a synchronous motor |
| 08/10/1999 | US5936787 Method and apparatus for reducing vibration on a disk spindle motor by detecting the vibrations and correcting the motor driving signal according to the detected vibration |
| 08/10/1999 | US5936374 Repulsion motor |
| 08/10/1999 | US5936365 Method and apparatus for using back EMF to control a motor |
| 08/10/1999 | US5936364 Drive control apparatus for brushless motor |
| 08/04/1999 | EP0933604A2 Compressor control system for air conditioner |
| 08/03/1999 | US5933573 Method of controlling an electric motor and apparatus for carrying out the method |
| 07/27/1999 | US5929590 Method and apparatus for implementing sensorless control of a switched reluctance machine |
| 07/27/1999 | US5929577 Brushless DC motor controller |
| 07/27/1999 | US5929576 Protection apparatus for brushless motor |
| 07/22/1999 | WO1999037015A1 A system for controlling a brushless electric motor |
| 07/22/1999 | WO1999037014A1 A driver circuit for a synchronous, alternating-current electric motor |
| 07/22/1999 | DE19902124A1 Control device for a brushless DC motor |
| 07/21/1999 | EP0930698A2 Speed controlling method for electronically commutated DC motors |
| 07/21/1999 | EP0930697A1 A system for controlling a brushless electric motor |
| 07/21/1999 | EP0930696A1 A driver circuit for a synchronous, alternating-current electric motor |
| 07/21/1999 | CN1223498A Motor drive system controlled by phase accumulator and method therefor |
| 07/20/1999 | US5926000 Apparatus for obtaining three-phase position detection signals by means of two coils |
| 07/14/1999 | EP0929144A2 Motor drive control system and method |
| 07/14/1999 | CN1223029A Control circuit for five-phase brushless DC motor |
| 07/13/1999 | US5923728 Motor controller |
| 07/13/1999 | US5923134 Method and device for driving DC brushless motor |
| 07/13/1999 | US5923133 Adaptive slew rate adjustment for a brushless multiphase DC motor and method |
| 07/07/1999 | EP0927998A2 Method and apparatus for braking a disk drive |
| 07/07/1999 | CN1222005A Method and circuit arrangement for commutation of multiple winding electric motor |
| 07/07/1999 | CN1222004A Motor rotation control device for optical disk player |
| 07/06/1999 | US5920175 Instantaneous position indicating apparatus for a sensorless switched reluctance machine system |
| 07/06/1999 | US5920166 Control of slew rate during turn-on of motor driver transistors |
| 07/06/1999 | US5920164 Brushless linear motor |
| 07/06/1999 | US5920163 Phase detecting circuit of brushless motor and magnetic recording and reproducing apparatus using the same |
| 07/06/1999 | US5918360 Method of fabricating a salient pole electronically commutated motor |
| 07/06/1999 | CA2190147C High frequency electric toothbrush |
| 07/01/1999 | WO1999033164A1 Electronic motor control mechanism |
| 07/01/1999 | DE19756957A1 Procedure for speed control of DC motor, especially one with brushes, like combustion air fan motor e.g for vehicle heating apparatus |
| 06/30/1999 | EP0925641A1 Device for sensing the angular position for controlling a synchronous motor excited by a permanent magnet |
| 06/30/1999 | EP0925640A1 Brushless electromotor control method |
| 06/30/1999 | CN1221184A Direct access storage device (DASD) with variable spindle rotation speed |
| 06/29/1999 | US5917302 Harmonic current attenuating device of a motor |
| 06/24/1999 | WO1999031794A2 A driving control system for electric motors |
| 06/24/1999 | WO1999031793A2 Regulation of and regulator for a permanent magnet synchronous motor |
| 06/24/1999 | WO1999031660A1 Direct access storage device (dasd) with a variable spindle rotation speed |
| 06/23/1999 | EP0924847A2 Method and circuit arrangement for commutation of a multiple winding electric motor |
| 06/23/1999 | EP0923805A1 Instantaneous position indicating apparatus for a sensorless switched reluctance machine system |
| 06/23/1999 | EP0923802A1 Permanent magnet direct current (pmdc) machine with integral reconfigurable winding control |
| 06/23/1999 | EP0791240B1 Economical wide range speed control system |
| 06/22/1999 | US5915070 Motor driving apparatus for pulse-width modulation controlling a DC voltage according to a rotation speed setting information |
| 06/22/1999 | US5914578 Method and systems for electrical drive control |
| 06/16/1999 | EP0923191A1 Commutation controller |
| 06/16/1999 | CN1219799A Commutation controller |
| 06/15/1999 | US5912543 Circuit having a digital controller for operation of a synchronous T motor |
| 06/15/1999 | US5912538 Torque amplification for ice breaking in an electric torque motor |
| 06/15/1999 | US5912522 Permanent magnet direct current (PMDC) machine with integral reconfigurable winding control |
| 06/15/1999 | US5912521 Permanent magnet rotor with shorting turns |
| 06/10/1999 | WO1999029035A1 Method for controlling turn-on/off of motor preheater and motor preheater |
| 06/10/1999 | WO1999029034A1 A method and a system for speed control of a rotating electrical machine with flux composed of two quantities |
| 06/10/1999 | WO1999029031A2 Method for controlling a permanent magnet synchronous motor |
| 06/09/1999 | EP0921630A2 Systems and methods for torque control of actuator and brushless DC motor therein |
| 06/09/1999 | CN2323512Y Brushless DC motor drive circuit protection arrangement |
| 06/08/1999 | US5910716 Brushless DC motor drive |
| 06/03/1999 | WO1999027640A2 Method and circuit for generating a pulse-width modulated actuating signal for a direct current actuator |
| 06/02/1999 | EP0920119A1 Dynamic braking system for electric motors |
| 06/01/1999 | US5909095 Bemf zero-crossing detection system of a multiple-phase motor |
| 05/27/1999 | DE19829808A1 Procedure for controlling induction air quantity for machine |
| 05/26/1999 | CN1217605A Drive device without sensor for switch-type reluctance motor and method therefor |
| 05/25/1999 | US5907228 Rotating machine control command method, servocontrol system for implementing said method, rotating machine provided with a system of this kind |
| 05/25/1999 | US5907226 Drive control apparatus for brushless motor |
| 05/25/1999 | US5907225 Method and apparatus for driving a polyphase sensorless motor |
| 05/20/1999 | DE19750993A1 Load current measurement method, especially for motor current |
| 05/19/1999 | EP0916179A1 Actuation and control method and device, particularly for synchronous permanent-magnet motors |
| 05/18/1999 | US5905348 Powering and control of a brushless DC motor |
| 05/18/1999 | CA2010673C Current chopping strategy for switched reluctance machines |
| 05/12/1999 | EP0914288A2 Procedure for determining the parameters for an electric drive controlling a synchronous elevator motor with permanent magnets |
| 05/12/1999 | EP0820657A4 Switch mode sine wave driver for polyphase brushless permanent magnet motor |
| 05/11/1999 | US5903128 Sensorless control system and method of permanent magnet synchronous motor |