| Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
|---|
| 03/18/1980 | US4194144 Constant velocity driving means |
| 03/05/1980 | EP0008571A1 Control circuit for a d.c. motor. |
| 03/04/1980 | US4191914 Control circuit for a DC electric motor particularly used in the propulsion of an electric vehicle |
| 02/26/1980 | CA1072624A2 D.c. motor control having gating control of a full-wave rectifier system |
| 02/19/1980 | US4189667 Control circuits for electric traction motors for vehicles |
| 02/19/1980 | US4189666 Speed control system for small size D-C electric motor |
| 02/12/1980 | US4188569 Control circuit for an electric vehicle traction motor |
| 02/06/1980 | EP0007901A1 Control system for a d.c. motor. |
| 02/06/1980 | EP0007622A1 Circuit for reversing the rotation sense of a d.c. motor |
| 02/06/1980 | EP0007510A1 Drive and/or brake control system for vehicles with DC series wound commutator motors |
| 02/05/1980 | US4187536 Device for energizing a D.C. motor, comprising an accumulator battery |
| 01/29/1980 | US4185575 Ramp speed integrated motor controller for sewing machines |
| 01/22/1980 | CA1070375A1 Transit vehicle motor effort control apparatus and method |
| 01/22/1980 | CA1070374A1 Transit vehicle generated voltage control apparatus and method |
| 01/15/1980 | US4184107 Control circuit for a predetermined angular movement of a DC motor |
| 01/01/1980 | US4181877 Inertia compensated static motor drive |
| 01/01/1980 | US4181876 Speed control circuit for electric motors |
| 01/01/1980 | US4181875 Drive circuit for a DC motor |
| 01/01/1980 | CA1069170A Drive circuits for direct current electric motors |
| 12/25/1979 | US4180767 Closed-loop regulating and overhauling load energy dissipating chopper type current control system for D.C. Motors |
| 12/25/1979 | CA1068784A Forced commutation chopper having current limit |
| 12/18/1979 | CA1068383A1 Chopper motor controller having pulse-by-pulse sensing of plugging |
| 12/18/1979 | CA1068343A1 Inductive load current measuring circuit |
| 12/18/1979 | CA1068338A1 Scr d.c. interrupter |
| 12/04/1979 | US4177412 Closed loop rotational speed control system having means for generating a PNM signal for an electric motor |
| 11/20/1979 | US4175247 Electric motor control for conductor wrapping tool |
| 11/13/1979 | CA1066395A1 Automatic sequencing scheme for reversing directions of electric traction motors |
| 11/13/1979 | CA1066394A1 Field boost arrangement for separately excited d-c traction motors of a vehicle propulsion system |
| 10/30/1979 | US4173029 Protective circuit for selectively applying power to a motor |
| 10/30/1979 | US4172989 Speed control device for a sewing machine |
| 10/30/1979 | CA1065380A1 Scr controlled universal motor |
| 10/23/1979 | US4172233 Electric vehicle traction motor control |
| 10/23/1979 | US4172232 Electric vehicle traction motor control |
| 10/16/1979 | US4171507 Electric vehicle traction motor control |
| 10/16/1979 | US4171506 Control apparatus for an electric car |
| 10/09/1979 | US4170750 Electric vehicle traction motor control |
| 10/09/1979 | US4170749 Speed control circuit for a series motor |
| 10/09/1979 | CA1064174A1 Elevator system |
| 10/04/1979 | WO1979000714A1 Motor speed controlling circuit |
| 10/02/1979 | CA1063702A1 Electrically propelled vehicle |
| 09/18/1979 | US4168455 Motor speed control system |
| 09/18/1979 | US4168454 Circuit arrangement for controlling the speed of a D.C. motor |
| 08/28/1979 | US4165801 Static Leonard system |
| 08/21/1979 | US4165476 Low loss, resettable excitation control for an inductive load |
| 08/14/1979 | US4164191 Sewing machine motor actuated pneumatic pump for needle threading |
| 08/14/1979 | CA1060537A1 Bi-directional motor drive servo |
| 08/09/1979 | WO1979000529A1 Tension controlling |
| 07/31/1979 | US4163182 Actuating circuit for D.C. motor |
| 07/24/1979 | US4162436 Motor speed controller |
| 07/24/1979 | US4161920 Motor control system for one stitch sewing control of a sewing machine |
| 07/24/1979 | US4161919 Motor control system for sewing machine |
| 07/24/1979 | CA1059213A1 Motor control system |
| 07/17/1979 | US4161235 Elevator system |
| 07/12/1979 | WO1979000441A1 Control circuit for a d.c.motor |
| 07/03/1979 | CA1057815A1 D.c. motor control having gating control of a full-wave rectifier system |
| 06/28/1979 | WO1979000355A1 Control system for a d.c. motor |
| 06/19/1979 | US4158796 Speed setting and control system for universal motors |
| 06/12/1979 | US4158159 Electronic circuit controller for windshield wiper drive motor |
| 06/12/1979 | US4158158 D.C. controller for battery powered electric motor |
| 06/12/1979 | CA1056523A1 Elevator system |
| 05/30/1979 | EP0002116A1 Control circuit for a D.C. motor for example in an electrically powered vehicle |
| 05/22/1979 | US4156162 Winder motor control system |
| 05/15/1979 | CA1054669A1 Permanent magnet motor overload protection |
| 05/08/1979 | US4153864 Motor speed regulator |
| 05/08/1979 | US4153863 DC Motor controller |
| 05/08/1979 | US4153853 DC motor speed controller |
| 05/08/1979 | US4153128 Drive aggregate for electric vehicles |
| 05/01/1979 | US4152758 Control logic for a phase controlled rectifier system |
| 05/01/1979 | US4152632 D.C. motor speed control apparatus having both armature current rate control and zero current deadtime optimized |
| 05/01/1979 | US4152631 Process time control system |
| 05/01/1979 | CA1053752A1 Apparatus for controlling controlled systems with dead time |
| 04/24/1979 | US4151450 Protective means for feeder of machinery with DC-motor |
| 04/17/1979 | US4150324 Speed control system of traction motor for electric vehicles |
| 04/17/1979 | US4150303 Motor speed control circuits |
| 04/10/1979 | US4149116 Motor speed control system |
| 04/03/1979 | US4147966 Means for digital control |
| 04/03/1979 | US4147965 Switching device for feeder in machine tools |
| 04/03/1979 | CA1051970A1 Motor control circuit including motor current limiting means |
| 03/27/1979 | US4146827 Four-quadrant current-regulated energization of d.c. motor using pulse-width modulation |
| 03/27/1979 | US4146826 Gto bi-directional motor control circuit |
| 03/20/1979 | US4145642 System for controlling the rotation of a DC motor |
| 03/20/1979 | US4145640 Electric cart drive control system |
| 03/13/1979 | US4144481 Control devices |
| 03/13/1979 | CA1050636A1 Speed control for pump of filling machines |
| 03/06/1979 | US4143288 Coreless motor |
| 03/06/1979 | CA1050103A1 Electrical control in a generator rectifier fed motor system |
| 02/27/1979 | US4142138 Motor control |
| 02/27/1979 | US4142135 Fork lift truck with balance weight using batteries as power source |
| 02/20/1979 | US4140382 Drive control circuit of motor drive unit |
| 02/13/1979 | US4139809 D.C. chopper control device for electric motors |
| 02/13/1979 | US4139808 Control apparatus for electrically driven sewing machine |
| 02/13/1979 | US4139153 Electronic reversible motor operated valve assembly |
| 02/06/1979 | CA1048105A1 Dc motor field shunting circuit |
| 01/09/1979 | US4134052 Bi-directional electric motor control circuit |
| 01/09/1979 | US4134051 Bi-directional electric motor control circuit |
| 01/09/1979 | US4133413 Elevator safety device |
| 01/02/1979 | US4132934 Electric motor driven vehicles |
| 01/02/1979 | US4132933 Electromechanical chopper for speed control of battery powered devices |
| 12/26/1978 | US4131833 Arrangement for tapping battery bank alternately from opposite ends |
| 12/26/1978 | US4131832 Speed sensitive field weakening control for traction motors |