Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
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10/23/1984 | US4479079 Apparatus for varying the speed of DC motors |
10/23/1984 | US4479077 Sewing machine with a universal motor |
10/17/1984 | EP0121723A1 Firing angle control system |
10/16/1984 | US4477752 Speed control apparatus for DC motor |
10/16/1984 | US4477751 Motor brake device |
10/11/1984 | WO1984004007A1 Control circuit for a motor |
10/09/1984 | US4476417 Control arrangement for a static converter |
10/09/1984 | US4476416 Power window control for motor vehicle window |
10/03/1984 | EP0120538A1 Device to supply power to a direct current motor by means of a rectified alternating current, and overcurrent protection |
10/02/1984 | US4475073 Proportional plus integral servo-reversible speed control |
10/02/1984 | US4475071 Speed control apparatus for d.c. motor |
10/02/1984 | US4475070 Motor torque control with improved linearity |
09/25/1984 | US4473784 Power control circuit |
09/25/1984 | US4473743 Motor drive lens shifting system for use in autofocus camera |
09/19/1984 | EP0119049A2 Servomotor controls |
09/11/1984 | US4471281 Digital control device |
09/11/1984 | US4471280 Anti-log power amplifier for reversible D.C. motor in automotive steering controls |
09/11/1984 | US4471278 Bang-bang current regulator having extended range of regulation |
09/11/1984 | US4471277 Vehicle propulsion motor control apparatus |
09/11/1984 | US4471276 Electric motor speed controller and method |
09/11/1984 | US4471275 Motor driven drapery closure and control circuit combination |
09/11/1984 | CA1174270A1 Method for regulating the power supply to a direct- current motor and a device for the application of said method |
09/04/1984 | US4470078 Pulse driven control circuit for moving a transducer across a rotary recording medium of pulses applied thereto |
09/04/1984 | US4469999 Regenerative drive control |
09/04/1984 | US4469053 Automotive electric fan controlling device |
08/29/1984 | EP0116912A1 Method of controlling motor speed |
08/29/1984 | EP0116831A1 Electric control device for a roller drive motor of a pipe rolling mill |
08/29/1984 | EP0027129B1 D.c. motor speed control circuit |
08/28/1984 | US4468724 Method and apparatus for controlling load current |
08/28/1984 | US4468599 Plug current regulator |
08/28/1984 | US4468597 Method for regulating the power supply to a direct-current motor and a device for the application of said method |
08/28/1984 | CA1173503A1 Direct current control in inductive loads |
08/28/1984 | CA1173494A1 Speed control for truck |
08/22/1984 | EP0116213A1 Dual voltage motor vehicle electrical system |
08/22/1984 | EP0035491B1 Directional control system |
08/21/1984 | US4467408 Means for controlling a forced commutated ac-to-dc electric rectifying circuit to avoid commutation failure |
08/21/1984 | US4467250 Electric motor controls for mechanical actuators |
08/14/1984 | US4465958 Motor speed control circuit |
08/14/1984 | US4465351 Motor-operated film driving device for camera |
08/01/1984 | EP0114285A2 Disexcitation circuit for motors of vehicles and method of rapid disexcitation and rapid transfer to normal operation |
07/31/1984 | US4463296 Vehicle motor driving circuit |
07/24/1984 | US4461988 Apparatus for controlling an electrical vehicle drive system |
07/24/1984 | CA1171454A1 Energy saving motor speed controller |
07/18/1984 | EP0113341A1 Windshield wiper control system. |
07/17/1984 | US4460854 Control device for a vibrating armature motor |
07/17/1984 | CA1171132A1 Digital dc motor speed control circuit |
07/10/1984 | US4459675 Printer control system with error count averaging |
07/10/1984 | US4459523 Motor speed control |
07/10/1984 | US4459521 Control box for a driving motor of a slidable panel of a vehicle, in particular for a window raiser |
07/03/1984 | US4458286 Electronic device having a high voltage breakdown protection circuit |
07/03/1984 | US4458186 Transistor control device for power transistor chopper |
07/03/1984 | US4458183 DC Motor control |
06/26/1984 | US4456920 Semiconductor device |
06/20/1984 | EP0111068A1 Stepping motor driving circuit |
06/19/1984 | CA1169483A1 Constant speed electric motor |
06/12/1984 | US4454573 Current regulator circuit |
06/12/1984 | US4454455 Fault responsive means for changing control sequence of a multiple-bridge electric power converter |
06/12/1984 | US4454454 MOSFET "H" Switch circuit for a DC motor |
06/05/1984 | US4453115 DC Motor control system |
06/05/1984 | US4453111 Electric drive for submarines |
06/05/1984 | US4452341 Load change responsive elevator speed control apparatus |
05/22/1984 | US4450392 Electronic speed regulator for a d.c. motor |
05/22/1984 | CA1167706A1 Electric outboard motor construction |
05/15/1984 | US4449082 Motor speed control system |
05/15/1984 | US4449077 Chopper control equipment for electric railcars |
05/15/1984 | CA1167515A1 Solid state servo amplifier for a d.c. motor position control system |
05/08/1984 | US4447768 Motor control device |
05/08/1984 | US4447767 SCR Motor speed control |
05/02/1984 | EP0107537A1 Control circuit for a drive motor of a movable element of a motor vehicle |
05/02/1984 | EP0007901B1 Control system for a d.c. motor |
05/01/1984 | US4446416 Polyphase electric machine having controlled magnetic flux density |
04/24/1984 | US4445075 Valve actuators |
04/18/1984 | EP0105497A1 Electric car control system |
04/18/1984 | EP0105296A1 Control circuit for the driving of a sliding part of a motor vehicle, particularly a window pane of a motor vehicle. |
04/17/1984 | US4443750 Energy saving motor speed controller |
04/17/1984 | US4443745 Rotation signal detection device of DC motor with brushes |
04/17/1984 | US4443744 Method and apparatus for charge enhancement of a commutating capacitor |
04/04/1984 | EP0104851A1 Bi-directional driver system for electrical load |
04/03/1984 | US4441061 Motor speed control system |
03/28/1984 | EP0104029A2 Control system for an electric motor |
03/27/1984 | US4439806 Short-circuit protection device for a DC control element |
03/21/1984 | EP0103215A1 Motor speed control apparatus |
03/21/1984 | EP0103133A1 Regulating device for current converters |
03/21/1984 | EP0008571B1 Control circuit for a d.c. motor |
03/20/1984 | US4438378 Motor drive apparatus |
03/20/1984 | CA1164040A1 Speed control of a d.c. electric motor |
03/14/1984 | EP0102589A2 Tension control device for a shaft winder |
03/13/1984 | CA1163665A1 Polyphase electric machine having controlled magnetic flux density |
03/06/1984 | CA1163316A1 Three phase power factor controller |
02/22/1984 | EP0100852A1 Circuit arrangement for rising and lowering a motor-operated antenna |
02/21/1984 | US4433370 Multiple phase chopper current limiting |
02/21/1984 | CA1162603A1 Pneumatic device to control the speed of an electric motor |
02/21/1984 | CA1162602A1 Control system for multiple speed motor |
02/07/1984 | US4430682 Protection circuit for d.c. motors |
02/07/1984 | US4430604 Rectifier switch for electric lawn mowers |
02/02/1984 | WO1984000450A1 Windshield wiper control system |
01/31/1984 | CA1161494A1 D.c. motor with angular rotor position sensor |
01/31/1984 | CA1161493A1 Dc motor control using motor-generator set with controlled generator field |
01/24/1984 | US4427931 Speed control apparatus for direct current motor |
01/24/1984 | US4427930 Electric vehicle current regulator |