Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
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06/16/1992 | US5123079 DC motor and controlling system therefor |
06/16/1992 | US5122716 Apparatus for reversibly controlling a motor |
06/16/1992 | CA1303702C Condition responsive pump control utilizing integrated, commanded, and sensed flowrate signals |
06/13/1992 | CA2032071A1 Mailing machine base |
06/13/1992 | CA2032026A1 Motor control circuit for a machine |
06/10/1992 | EP0489343A2 Control or regulating device for appliances supplied by accumulators |
06/10/1992 | CN1017017B Chopper speed governing method by microcomputer control |
06/09/1992 | US5120023 Hoist winding system |
06/09/1992 | CA1302729C Tachometric device driven by an electric motor |
06/04/1992 | DE4038857A1 Regulating path for DC motor armature current regulation - uses inverse transmission function component across PI regulator to compensate for nonlinearity |
06/04/1992 | DE4038199A1 Transient voltage and current limiting circuitry for electric motor - uses controlled semiconductor bridge to provide current and=or voltage limiting path |
06/03/1992 | CN2106441U Differential electromagnetic voltage regulator |
06/03/1992 | CN2106107U Electric locomotive v-mos speed regulation controller for mine |
06/02/1992 | US5119466 Control motor integrated with a direct current motor and a speed control circuit |
06/02/1992 | US5119001 Frequency controlled oscillating pet toy |
06/02/1992 | US5119000 Low noise motor drive circuit |
05/29/1992 | WO1992009016A1 Speed control device and predicting machine |
05/26/1992 | CA1301831C Motor control fail-safe circuit |
05/26/1992 | CA1301469C Drive system for automatic washer |
05/19/1992 | CA1301241C Feedback circuitry for d.c. motor speed control |
05/19/1992 | CA1301240C Control circuits, electronically commutated motor systems and methods |
05/16/1992 | CA2038257A1 Full-wave feedback speed control for hand mixer |
05/14/1992 | WO1992008267A1 Servomotor-control circuit |
05/14/1992 | DE4035067A1 Schaltungsanordnung zur steuerung eines stellmotors Circuit arrangement for the control of an alternate engine |
05/06/1992 | EP0483447A2 Pulse width modulated motor control system |
05/06/1992 | CN1060938A Load impact controller for speed regulator system |
05/05/1992 | US5111381 H-bridge flyback recirculator |
05/05/1992 | US5111378 DC chopper converter |
04/30/1992 | WO1992007421A1 Process for controlling electric motors with permanent-magnet excitation |
04/28/1992 | US5109171 Low-noise miniature electric motor |
04/28/1992 | US5107713 Air sampling pump |
04/25/1992 | WO1992008275A1 Load impact controller for a speed regulator system |
04/25/1992 | CA2072071A1 Load impact controller for a speed regulator system |
04/22/1992 | EP0481773A1 Improvement of series-excitation motor speed control circuit |
04/22/1992 | EP0481328A2 Bidirectional current sensing for power MOSFETS |
04/22/1992 | EP0481096A1 Method for determining the frequency amplification of a voltage-to-frequency converter |
04/21/1992 | US5107190 Means and method for optimizing the switching performance of power amplifiers |
04/21/1992 | US5106171 Antilock brake system with step-down release control |
04/21/1992 | CA1299236C Variable motor speed control for automatic washer |
04/16/1992 | WO1992006533A1 Electric motor fed by alternating current rectified by means of a diode |
04/16/1992 | DE4133722A1 Verfahren zur steuerung von elektromotoren mit permanentmagnetischer erregung Method for control of electric motors with permanent magnet excitation |
04/15/1992 | EP0480509A1 Arrangement for supplying energy to a load, as well as a drive system and a sound reproduction system comprising such an arrangement |
04/08/1992 | EP0479658A1 Speed commutating process for a constant flux multi-polar electric motor and motor ventilator set with this speed commutating process |
04/01/1992 | EP0477643A2 Control of a discontinuous current by a thyristor rectifier with inductive load |
03/31/1992 | US5101315 Drive control apparatus for electric actuator |
03/31/1992 | US5100101 Electromechanical bidirectional rotation device |
03/26/1992 | DE4029883A1 Rotation direction locking system for battery operated tool - has rotation direction changeover switch and unit for locking changeover switch during operation of permanent excited DC motors |
03/26/1992 | DE4029765A1 DC electric motor driven pump operated in two directions - has motor terminals connected selectively with positive or negative pole operating voltage source across changeover contacts of two relays |
03/19/1992 | WO1992004666A1 Positioning control |
03/18/1992 | EP0475777A1 Rectifying motor lap-wound magnetic winding with adjustable commutating angle |
03/18/1992 | EP0475704A1 Drive circuit for an electric motor |
03/17/1992 | US5097378 Safety device for video cassette recorder |
03/17/1992 | US5097185 Method and device for controlling speed of a motor in a powered seat |
03/17/1992 | US5097184 Battery operated device |
03/11/1992 | CN1059431A A.c. motor capable of regulating speed by use of speed super position |
03/03/1992 | US5093892 Motor speed control system |
03/03/1992 | CA1296763C Motor driving power supply apparatus including switching regulatorcontrol loop |
02/18/1992 | US5089761 Motor control system |
02/18/1992 | US5089715 Multiposition switch device for controlling a driving means |
02/18/1992 | CA1296051C Torque determination for control of an induction motor apparatus |
02/13/1992 | DE4125311A1 Rotary drive change in appts., e.g. false twister - where plug and socket connection to three=phase current supply is wired to give change when plug is changed by 180 deg. |
02/12/1992 | EP0470657A2 Antilock brake control method with step-down release control |
02/12/1992 | CN2096161U Field controller dc motor pulse speed regulator |
02/05/1992 | EP0469347A2 Apparatus for reversibly controlling a motor |
02/05/1992 | EP0468989A1 Control circuit. |
02/04/1992 | US5086492 Switching current regulator for motor control |
02/04/1992 | US5086261 Motor speed control device for use in an image forming apparatus |
01/29/1992 | EP0468557A2 Anti-lock brake control with motor current control |
01/28/1992 | US5084633 Bidirectional current sensing for power MOSFETS |
01/28/1992 | CA1295009C Electric motor controllers |
01/22/1992 | EP0466757A1 A controller for an electrical load |
01/14/1992 | US5081405 Electrical actuator with means for preventing dither at a limit switch |
01/14/1992 | US5081404 Motor driver interface fault detection circuit with dual mode fault detection |
01/08/1992 | EP0465381A1 Device for controlling the rotation speed of an electric motor |
01/07/1992 | CA1293990C Dc motor control circuit providing variable speed operation |
12/31/1991 | US5077824 Direct-current motor control |
12/31/1991 | US5077509 Multiple windings electrical motors controllers |
12/30/1991 | CA2040648A1 Electric gearshift for children's cars |
12/27/1991 | EP0462169A1 An actuator device for an electric window winder. |
12/24/1991 | US5075612 Method and device for determining the optimal excitation value which minimizes the electromagnetic losses of electric machines |
12/12/1991 | DE4017720A1 Drive with armature current circuit for flame cutter - comprises current transformer, discriminator and limiter in form of a zener diode |
12/11/1991 | EP0459998A1 Method and apparatus for dc motor speed control |
12/11/1991 | EP0166744B1 A programmed microprocessor for a speed control system for a d.c. motor |
12/10/1991 | US5071199 Antilock brake system with motor current control |
12/04/1991 | EP0459548A2 Method and apparatus for controlling braking pressure applied to a vehicle brake |
12/03/1991 | US5070283 Traction motor controller for forklift vehicles |
11/27/1991 | EP0458602A1 Apparatus for controlling open/close drive of a lid for a recording medium player |
11/26/1991 | CA1292505C Slow start power supply |
11/21/1991 | EP0316324B1 Speed control unit for direct current electric motor with intrinsic feed-back |
11/13/1991 | EP0456345A1 Traction motor optimizing system for forklift vehicles |
11/13/1991 | EP0456344A1 Traction motor controller for forklift vehicles |
11/13/1991 | CN1056194A Variable brush step speed regulation dc motor |
11/12/1991 | US5065341 Printer for a computer |
11/12/1991 | US5065078 D.C. motor control circuit for radio controlled toy |
10/30/1991 | CN1055843A Double rotor, worm gear drive and full adjustable speed motor unit and its speed adjusting method |
10/29/1991 | CA1291524C Speed control circuit for an electric motor |
10/23/1991 | EP0452497A1 Carriage controller of a printer |
10/23/1991 | CN1055629A Wave-cutting method and equipment for pwm frequency-converting speed regulation of induced motor |
10/23/1991 | CN1055627A Double-rotor speed-adjusting motor and the speed-adjusting method |
10/22/1991 | US5059992 Drive device for motor |