| Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
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| 04/28/1999 | EP0911954A1 PWM drive system in a current mode. |
| 04/27/1999 | US5898296 Isolation regulator |
| 04/27/1999 | US5898280 DC shunt (or compound) motor pair capable of synchronous operation |
| 04/22/1999 | WO1999019966A1 Multi-functional apparatus employing an intermittent motion mechanism |
| 04/21/1999 | EP0910156A1 Direct current motor for closed-loop feedback control |
| 04/21/1999 | CN1214569A Digital controller for rotation speed of DC motor |
| 04/21/1999 | CN1214566A Direct current motor for closed-loop feedback control |
| 04/21/1999 | CN1214563A Three-terminal receiprocal electromechanical transducer |
| 04/20/1999 | US5896487 Opto-electrically controlled direct current motor speed control circuit |
| 04/14/1999 | EP0909016A2 Servo-motor driving method |
| 04/14/1999 | CN1213888A Fault diagnosis circuit |
| 04/08/1999 | WO1999017436A1 Separately excited dc motor with boost and de-boost control |
| 04/06/1999 | US5892885 Variable speed control switch for direct current electric power tools |
| 04/06/1999 | CA1340489C Actuator and communication systems |
| 04/01/1999 | DE19845780A1 Digital control device for speed control of DC motor e.g. for fans |
| 03/31/1999 | EP0749203B1 Controller for dc motor |
| 03/30/1999 | US5889376 Motor driving apparatus |
| 03/30/1999 | US5889374 Thyristor control switch for a bidirectional motor |
| 03/25/1999 | WO1999014847A1 Variable speed universal machine system |
| 03/25/1999 | WO1999014835A1 Control system using an electric motor |
| 03/24/1999 | EP0903844A1 Drive system |
| 03/23/1999 | US5886484 Masking of switching noise in controlling a "H" bridge |
| 03/16/1999 | US5883776 Apparatus and method for improving response time of electromagnetic actuators |
| 03/10/1999 | CN1210354A Apparatus and method for controlling electric motor |
| 03/03/1999 | EP0899847A1 Method for determining the position and the direction of movement of a movable part driven by an electric motor |
| 03/03/1999 | CN2309668Y Microcomputer control circuit for cooking fume remover |
| 03/03/1999 | CN1209687A Harmonic current attenuation device for electric motor |
| 03/02/1999 | US5878189 Control system for a separately excited DC motor |
| 02/24/1999 | EP0898362A1 Method for supplying a gas turbine plant |
| 02/24/1999 | EP0898293A2 Apparatus and method for controlling an electric motor apparatus |
| 02/23/1999 | CA2102753C Method and apparatus for driving motor |
| 02/18/1999 | WO1998051552A3 Energy-recovering direct-current electric actuator |
| 02/17/1999 | CN2308209Y Frequency-conversion speed regulation open-loop long-distance control device in explosion-proof field |
| 02/17/1999 | CN1208512A Motor control device and apparatus for the recording and/or reproduction of information including the motor control device |
| 02/16/1999 | US5872436 System for monitoring and controlling the opening and closing of electrically driven devices |
| 02/10/1999 | CN2307403Y Electric motor controlled frame |
| 02/09/1999 | US5869939 Direct current motor with imbalanced winding for closed-loop feedback control |
| 02/09/1999 | US5869938 Current control apparatus in DC motor |
| 02/04/1999 | WO1999005780A1 Control circuit for a dc motor |
| 02/04/1999 | WO1999005763A1 Control circuit for a direct current motor |
| 02/02/1999 | US5867002 Electromechanical device with variable resistance circuit for controlling a load, particularly of an electric motor |
| 02/02/1999 | US5867001 Trim circuitry and method for accuracy in current sensing |
| 01/28/1999 | WO1999004484A1 D.c. motor with controlled or regulated rotational speed |
| 01/28/1999 | DE19732186A1 Electronic speed controller for DC motors without external tachogenerators |
| 01/28/1999 | DE19732098A1 Steuerschaltung für einen Gleichstrommotor Control circuit for a DC motor |
| 01/28/1999 | DE19732094A1 Steuerschaltung für einen Gleichstrommotor Control circuit for a DC motor |
| 01/28/1999 | DE19730047A1 Gleichstrommotor, der in der Drehzahl gesteuert bzw. geregelt wird Direct current motor, which is controlled in speed |
| 01/20/1999 | EP0892500A1 System for increasing the definition in converting a digital datum in a PWM signal for driving a full-bridge output stage |
| 01/13/1999 | EP0890841A1 Method for determining the rotation speed of mechanically commutated DC motors |
| 01/12/1999 | US5859509 Adjustable speed control for children's ride-on vehicle |
| 01/07/1999 | EP0889581A2 Apparatus and method for improving response time of electromagnetic actuators |
| 01/07/1999 | EP0888942A2 Wiper apparatus |
| 01/07/1999 | EP0852084A4 Switching circuit with lockout feature |
| 01/07/1999 | EP0815631B1 Method for monitoring and controlling the opening and closing process of electrically powered units |
| 01/07/1999 | DE19725708A1 Verfahren zur Ansteuerung wenigstens zweier elektrischer Verbraucher A method for controlling at least two electrical consumers |
| 01/06/1999 | CN1204182A Motor drive apparatus and motor driving method capable of simply reducing rotating speed in PWM mode |
| 01/05/1999 | US5857060 Noise suppression in PWM-driven DC motor |
| 01/05/1999 | US5855120 Method and apparatus for driving pump motor for refrigerator dispenser |
| 12/30/1998 | WO1998058825A2 Window wiper motor system for an automotive vehicle |
| 12/30/1998 | EP0887917A1 Method for controlling a three-phase load control bridge by pulse width modulation and a supply device including such a bridge |
| 12/30/1998 | CA2293218A1 Window wiper motor system for an automotive vehicle |
| 12/23/1998 | WO1998058445A1 Method for controlling at least two electrical consumers |
| 12/16/1998 | CN1041264C DC motor control circuit |
| 12/15/1998 | CA2126338C Improved pwm control for electric motor driven piston paint pumps |
| 12/09/1998 | EP0883236A1 The driving circuit system constituted by the multiple DC power driving devices of the DC or AC motors in mixture of series and parallel combinations |
| 12/09/1998 | CN1201565A Switching circuit with lockout feature |
| 12/08/1998 | US5847526 Microprocessor controlled fan |
| 12/08/1998 | CA2007427C Motor control circuit |
| 12/02/1998 | EP0880819A2 Motor control device and apparatus for the recording and/or reproduction of information including the motor control device |
| 12/02/1998 | EP0815639B1 Circuit for driving an electric motor |
| 12/02/1998 | CN1200595A Electric motor series-parallel combination operation type driving system |
| 12/01/1998 | US5844387 Electric power steering device |
| 11/24/1998 | US5841249 Multi-functional apparatus employing an intermittent motion mechanism |
| 11/24/1998 | CA2133471C Optimal dc motor/controller configuration |
| 11/24/1998 | CA2116804C Motor controls |
| 11/19/1998 | WO1998051552A2 Energy-recovering direct-current electric actuator |
| 11/18/1998 | EP0878052A2 Low-voltage generation in mains-powered hot-air appliances having a fan motor |
| 11/17/1998 | US5838877 Noise suppression in PWM-driven DC motor |
| 11/12/1998 | WO1998051002A1 Motor control apparatus |
| 11/11/1998 | EP0877473A2 DC motor control circuit |
| 11/11/1998 | EP0759223B1 Controlled commutator circuit |
| 11/10/1998 | US5835676 Motor driving apparatus |
| 11/10/1998 | US5834913 Method and apparatus for controlling motor rotation, and a disk signal regenerating apparatus using the motor |
| 10/29/1998 | WO1998048090A1 Drive unit for a shaft of a device working in synchrony with the shanks of a mechanical loom to form a leno selvage |
| 10/29/1998 | DE19733581C1 Identifying position-movement direction of movable part preset at electric motor |
| 10/28/1998 | CN1197325A Control device of d. c. dynamo driven by two-phase power line from a.c. electrified wire netting |
| 10/27/1998 | US5828196 Apparatus and method for controlling an electric motor |
| 10/21/1998 | EP0872011A1 System for controlling the speed of a motor driven by an unregulated voltage |
| 10/21/1998 | CN2295296Y Fitting structure of D. C. speed-regulating power-supply rectified by silicon controlled rectifier for microcomputer |
| 10/20/1998 | US5825972 Direct current fan motor speed controller |
| 10/20/1998 | US5825147 Control system for a vehicle having a moveable vehicle body member |
| 10/14/1998 | EP0870641A2 Performance event sensing for control of electric motor driven golf car |
| 10/14/1998 | CN1040273C Method for controlling linear D. C. motor of downhole motor-pump |
| 10/13/1998 | US5821723 Speed control apparatus for a switched reluctance motor |
| 10/13/1998 | US5821721 Motor control system especially for control of an optical scanner |
| 10/13/1998 | US5821709 DC motor control circuit |
| 10/13/1998 | US5820350 Method and apparatus for controlling downhole rotary pump used in production of oil wells |
| 10/08/1998 | DE19711979A1 Verfahren zur elektrischen Steuerung und Regelung der Bewegung von elektrisch betriebenen Aggregaten Method for electrically controlling and regulating the movement of electrically operated assemblies |
| 10/07/1998 | EP0869605A2 Method of reducing retroactive effects on the profile of the current drawn from a network by inductive loads and motor drive device using this method |
| 10/07/1998 | CN1195223A Semiconductor integrated circuit for motor control |