Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217)
07/1987
07/08/1987EP0228291A2 Ribbon deck motor control
07/08/1987EP0113341B1 Windshield wiper control system
07/07/1987US4678975 Motor control circuit for motor driven power windows
06/1987
06/30/1987US4677356 DC motor drive control device
06/30/1987CA1223633A1 Multiple windings electrical motors controllers
06/23/1987US4675589 Method and device for producing a pulsed setting voltage
06/23/1987US4675585 Electric vehicle speed control
06/23/1987US4675584 Control system
06/18/1987WO1987003753A1 D.c. motor control system
06/16/1987US4673852 Device for the electric low-voltage driving of a rotatable mass having high inertia and a motor which is part of said device
06/16/1987US4673851 PWM motor operating system with RFI suppression
06/16/1987US4673297 For imparting cyclical motion to articles
06/11/1987DE3543207A1 Control circuit for a radiator fan in a motor vehicle
06/09/1987US4672291 Variable-speed electrical machine
06/09/1987US4672278 Antenna relay method and apparatus
06/09/1987US4671390 Converter-powered drive for an elevator
06/03/1987CN86107916A Printer-driving motor and its control device
06/02/1987US4670831 Method and apparatus for generating a control power delivered to a load by a polyphase power line
06/02/1987US4670693 Current supply device for plural loads
05/1987
05/27/1987EP0223102A2 Control circuit for an electric printing machine drive motor or the like
05/27/1987EP0223101A2 Control device for a separately excited d.c. drive motor and method for controlling a d.c. drive motor of a printing machine
05/27/1987EP0223100A2 Control device for an electric printing machine drive motor
05/27/1987CN86107921A Control circuit for electric printing machine drive motor or similar device
05/26/1987CA1222306A1 Vehicle power window control
05/26/1987CA1222305A1 Vehicle power window control circuit
05/26/1987CA1222304A1 Power window control for motor vehicle window
05/20/1987EP0222042A1 Circuit arrangement of an isolation layer field effect transistor and a coil
05/19/1987US4667121 Integrated circuit speed controller
05/19/1987US4665965 Control system for roller-blinds or the like with swivel blades
05/14/1987DE3538949A1 Entstoerschaltung Suppression circuit
05/13/1987EP0221314A2 Electric tool with speed reduction
05/07/1987WO1987002840A1 Interference suppression circuit
05/07/1987DE3539246A1 Device for controlling a DC motor
05/05/1987US4663576 Automatic controller for magnetic jack type control rod drive mechanism
04/1987
04/28/1987US4661750 Device for controlling DC motor
04/28/1987CA1221129A2 Hand tool reversing switch with rotatable spaced apart resilient contacts
04/23/1987WO1987002527A2 Device for automatic control of direct current motors
04/23/1987DE3536416A1 Control device for the current which is to be supplied to a DC motor, especially of a tool, such as a screwdriver or a gun with a cartridge
04/15/1987EP0218036A1 Improvements relating to control circuits, especially for servo systems
04/15/1987CN85107282A Method and device for controlling induction motor
04/14/1987US4658192 Programmable deadband current regulator
04/07/1987US4656404 Turbine-diven linear controller for electromechanical device and method
04/07/1987US4656403 Digital speed control circuit for a DC motor
04/07/1987US4656402 Electric motor control apparatus
04/01/1987EP0216039A2 A control system for reversing the rotation of a field wound motor
04/01/1987CN85107081A Control device for variable speed electric motor
03/1987
03/31/1987US4654568 MOSFET "H" switch with current sensing
03/25/1987EP0215325A2 Solid state D.C. motor control
03/24/1987US4652984 Self-oscillating power-supply circuit
03/17/1987US4651269 Current flow reversing circuit
03/11/1987EP0213992A1 Method and device to control a DC motor
03/11/1987CN86105486A Solid d. c. motor controller
03/10/1987US4649328 Method for automatic speed loop tune-up in a machine drive
03/10/1987US4649327 Electric motor control circuit
03/10/1987US4649326 High voltage MOS SCR and power MOSFET "H" switch circuit for a DC motor
03/03/1987US4648003 Electrical circuit arrangement for the protection of presses
02/1987
02/12/1987DE3527906A1 Circuit arrangement for positioning an object which can be adjusted by means of an adjusting device
02/03/1987US4641234 A-C or D-C to D-C converter for dual current locomotives with D-C motors
02/03/1987US4641068 DC motor driving device
02/03/1987US4641067 Motor control method and apparatus therefor
01/1987
01/27/1987US4639647 Four quadrant control of series motors
01/27/1987CA1217229A1 Motor control system
01/20/1987US4638225 Method and apparatus therefor in motor speed control
01/15/1987WO1987000363A1 Control circuit for an electric motor
01/14/1987EP0208508A2 Pulse-width modulation drive circuit
01/14/1987EP0208142A1 Motor speed control device
01/13/1987US4636711 Pulse width modulation control circuit with a variable zero to one hundred percent duty cycle
01/08/1987DE3523456A1 Method for monitoring the tightening operation of a screw
01/06/1987US4635205 Microprocessor controlled d.c. motor for indexing postage value changing means
01/06/1987US4634944 Cyclic speed motor control circuit
01/06/1987US4634942 Apparatus for controlling electric cars
01/06/1987US4634941 Electric wheelchair with improved control circuit
01/06/1987CA1216324A1 Series transistor chopper
12/1986
12/30/1986US4633358 H-switch circuit with an overcurrent protection circuit
12/30/1986US4633154 Braking method, braking circuit and speed control apparatus for a DC motor
12/30/1986US4633152 Direct current motor controller
12/30/1986EP0105296B1 Control circuit for the driving of a sliding part of a motor vehicle, particularly a window pane of a motor vehicle
12/23/1986US4631463 Linear controller for electrochemical device and method
12/17/1986CN86103593A Speed control device for dc motors
12/16/1986US4630210 Microprocessor controlled d.c. motor for controlling a load
12/16/1986US4629951 Control system for reversing the rotation of a field wound motor
12/16/1986US4629950 Variable automatic forward/reverse control device for baby cart
12/09/1986US4628237 Motorized unit for home entertainment devices
12/09/1986US4628235 Control circuit for motor driver
12/09/1986US4628232 Anti-plug reversing module
12/02/1986US4626755 Sump pump motor switch circuit
12/02/1986US4626750 Solid state d.c. motor control
11/1986
11/25/1986CA1214511A1 Method and circuit for dc motor field regulation with speed feedback
11/18/1986US4623827 Device for controlling motor rotation speed
11/12/1986EP0201388A1 DC motor control device and its use in an effort measuring machine and in a physical exercise device
11/11/1986US4622500 Electric motor controller
11/05/1986EP0200713A1 Field current control device of DC motors
11/05/1986EP0200712A1 Measuring device to determine the countervoltage of an electric motor
11/04/1986US4621223 Load drive control system for a motor vehicle window
11/04/1986CA1213655A1 Anti-log power amplifier
10/1986
10/29/1986EP0199704A1 Motor phase-angle control circuit
10/29/1986CN85108196A Arrangements for controlling d.c. motors
10/15/1986CN86101150A Torque determination for control of an induction motor apparatus
10/08/1986EP0196543A2 Current control of an inductive load
10/08/1986EP0196539A1 Digital speed control circuit for a DC motor
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