| Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
|---|
| 11/17/1999 | EP0957567A2 Torque motor and drive circuit |
| 11/17/1999 | EP0957497A2 Variable speed control switch for direct current electric power tools |
| 11/16/1999 | US5987554 Method of controlling the transfer of information across an interface between two buses |
| 11/12/1999 | CA2269112A1 Torque motor and drive circuit |
| 11/11/1999 | WO1999049487A3 Drive unit for switching circuit breakers on and off |
| 11/10/1999 | EP0955723A2 Method and apparatus for lowering the voltage of an intermediate circuit of an electrical injection moulding machine |
| 11/09/1999 | US5982131 Control device for motor driving system |
| 11/09/1999 | US5980248 Motor controller for a dental handpiece |
| 11/04/1999 | WO1999055566A1 Method and device for controlling a pump of a brake system |
| 11/04/1999 | DE19837014C1 Circuit arrangement for regulating number of revolutions of cooling fan |
| 11/04/1999 | DE19818174A1 Verfahren und Vorrichtung zur Steuerung einer Pumpe eines Bremssystems Method and apparatus for controlling a pump of a brake system |
| 11/02/1999 | US5978547 High-turndown DC motor controller and method |
| 11/02/1999 | US5977743 Control device |
| 10/28/1999 | WO1999054992A1 An excitation circuit for balancing phase voltages in a two phase motor |
| 10/28/1999 | WO1999054991A1 High-turndown dc motor controller and method |
| 10/28/1999 | DE19910755A1 Linear current sensing circuit for motor controller |
| 10/20/1999 | EP0950280A1 Adjustable speed control for children's ride-on vehicle |
| 10/20/1999 | CN1232343A Speed control device for motor of scanner |
| 10/20/1999 | CN1045830C Dual motor speed controller |
| 10/19/1999 | US5969919 Drive unit for electric motor |
| 10/13/1999 | CN1045696C DC motor with rotating sensor |
| 10/05/1999 | US5962933 Computer fan speed control method |
| 09/30/1999 | WO1999049487A2 Drive unit for switching circuit breakers on and off |
| 09/30/1999 | DE19813810A1 Antriebseinrichtung zum Ein- und Ausschalten von Leistungsschaltern Driving means for turning on and off of power switches |
| 09/29/1999 | EP0945976A2 An electric circuit |
| 09/28/1999 | US5959421 Motor direction control device for electromotive vehicles |
| 09/28/1999 | US5959417 Current feedback amplifier having trimcircuitry and method for controlling and equalizing stator winding current |
| 09/28/1999 | US5957362 Device for fitting rivets or control therefor |
| 09/28/1999 | CA2071976C Direct current power control circuit |
| 09/22/1999 | EP0943528A2 An electric assist steering system having an improved motor current controller with gain scheduler |
| 09/22/1999 | EP0943510A2 Wiper control device |
| 09/21/1999 | US5955853 Direct current motor for closed-loop feedback control |
| 09/16/1999 | DE19811151A1 Procedure for controlling electric drive, especially in car |
| 09/16/1999 | DE19810898A1 Headlamp unit for automobile |
| 09/09/1999 | DE19909812A1 Position control for camera lens drive e.g. for television camera |
| 09/08/1999 | EP0940736A2 Electronic control system with radio remote control setting of limit stops for motors for the operation of winding devices, such as roller shades, roller shutters, rolling gates and similar |
| 09/07/1999 | US5949208 Circuit and method for controlling a DC motor |
| 09/07/1999 | US5949206 Multi-functional apparatus employing an intermittent motion mechanism |
| 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 | EP0939214A2 Apparatus for detecting abnormality in direct current motor driving system |
| 09/01/1999 | EP0938766A1 Control system using an electric motor |
| 09/01/1999 | CN1227475A Electrical curcuit structure for supplying power |
| 08/31/1999 | US5945800 For controlling the rotating speed of a electromechanical device |
| 08/26/1999 | WO1999043078A1 Method and circuit for measuring the rotation speed of electronically switched fans |
| 08/24/1999 | US5943470 Low-voltage generation in mains-powered hot-air appliances having a fan motor |
| 08/24/1999 | US5942864 Control device for a variable speed electric motor |
| 08/24/1999 | CA2101714C Voltage compensation of a pulse-width-modulated servomechanism |
| 08/12/1999 | WO1999027640A3 Method and circuit for generating a pulse-width modulated actuating signal for a direct current actuator |
| 08/10/1999 | US5936376 Excitation circuit for balancing phase voltages in a two phase motor |
| 08/10/1999 | US5936371 Method and apparatus for controlling a servo motor using a stepper motor controller integrated circuit |
| 08/03/1999 | US5933573 Method of controlling an electric motor and apparatus for carrying out the method |
| 08/03/1999 | US5932979 PWM speed-control apparatus for elevators |
| 07/29/1999 | DE19851479A1 Controller for current commutation motor with a phase cut-off controller and rising and falling torque |
| 07/29/1999 | DE19803973A1 Electronic RPM or revolution control for drive motor of setting device especially for raising or lowering barrier on railway switching points |
| 07/28/1999 | CN1224272A Quasi-superconductor speed stabilizing system |
| 07/28/1999 | CN1224266A High power uninterruption power supply method for motor |
| 07/27/1999 | US5930736 Fan monitoring system |
| 07/27/1999 | US5929592 Apparatus for controlling driving signal for motor |
| 07/27/1999 | US5929582 Direct current electrical motor system and method of using same |
| 07/22/1999 | DE19900982A1 Motor drive system for vehicle windows |
| 07/21/1999 | EP0929932A1 Control circuit for a dc motor |
| 07/21/1999 | EP0929818A1 Electrical circuit to detect load current |
| 07/20/1999 | US5925999 Three-speed dual-winding direct current permanent magnet motor method and apparatus |
| 07/15/1999 | WO1999035734A1 Bi-directional motor actuator |
| 07/15/1999 | DE19819809C1 Reducing the intermediate circuit tension in an electrically driven injection machine and process equipment |
| 07/14/1999 | CN2329118Y Speed controller for DC motor |
| 07/13/1999 | US5923145 Controller for variable speed motor |
| 07/08/1999 | DE19833873A1 Direction control for motor of electric vehicle |
| 07/07/1999 | CN2328131Y Multifunctional supersonic motor driver |
| 07/06/1999 | US5918685 For the accurate insertion of screws |
| 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 | CN1221249A Wave-wide regulation controlled electric circuit for D. C. brushless fan |
| 06/29/1999 | US5917722 Inverter circuit |
| 06/29/1999 | US5917720 Method and circuit for driving a bridge by a PWM procedure |
| 06/29/1999 | US5917302 Harmonic current attenuating device of a motor |
| 06/29/1999 | US5917296 Optimum motor speed control system |
| 06/24/1999 | WO1998058825A3 Window wiper motor system for an automotive vehicle |
| 06/15/1999 | US5912542 Variable load inductance compensation for motor drive circuits |
| 06/10/1999 | WO1999029033A1 Drive control method for motor drive controller and motor drive controller |
| 06/10/1999 | WO1999029032A1 Method for removing torque vibrations in an ac motor controlled by a frequency converter |
| 06/09/1999 | EP0920266A1 Electrical circuit for supplying power |
| 06/09/1999 | EP0633844B1 An optimal dc motor/controller configuration |
| 06/08/1999 | US5910717 Circuit arrangement for controlling a reversible D.C. motor |
| 06/08/1999 | US5910715 Current control apparatus in DC motor |
| 06/03/1999 | WO1999027642A1 Commutator motor control system |
| 06/03/1999 | WO1999027640A2 Method and circuit for generating a pulse-width modulated actuating signal for a direct current actuator |
| 06/02/1999 | CN2322319Y Motor energy-saving control box |
| 05/27/1999 | DE19817891A1 Producing pulse width modulated adjusting signal for DC actuator e.g for operating vehicle parking brake |
| 05/25/1999 | US5907859 Storage device in which read/write operation is controlled in response to source voltage |
| 05/25/1999 | US5906088 Electric lawn mower |
| 05/18/1999 | US5905390 Inductive load drive circuit |
| 05/18/1999 | US5905345 Multi-functional apparatus employing an intermittent motion mechanism |
| 05/12/1999 | CN1043393C Method and apparatus for preventing excessive current flow in motor |
| 05/11/1999 | US5903121 Apparatus for triggering a DC motor with a protective circuit preventing substrate currents |
| 05/11/1999 | US5903114 Multi-functional apparatus employing an intermittent motion mechanism |
| 05/06/1999 | DE19844956A1 Fault diagnosis circuit for a bridge circuit |
| 05/06/1999 | DE19842438A1 Driver unit for controlling electric motor, for vehicle power steering device |
| 05/05/1999 | CN2317581Y Constant current speed-regulating stabilizer for dc electric fan |
| 05/05/1999 | CN1216175A Low-voltage generation in mains-powered hot-air appliances having fan motor |
| 05/05/1999 | CN1043280C Overcurrent feed preventing device |