| Patents for H02P 1 - Arrangements for starting electric motors or dynamo-electric converters (9,872) |
|---|
| 02/02/1982 | CA1117586A2 Stepping motor control circuit |
| 01/26/1982 | US4313076 Dynamoelectric machine, method of operating such, and circuit |
| 01/20/1982 | EP0044244A2 Single-phase induction motor |
| 01/19/1982 | US4311951 Apparatus and method for high slip operation of an AC electric motor at substantially zero rotation and substantially zero torque |
| 01/19/1982 | US4311950 Excitation system for a synchronous machine |
| 12/29/1981 | US4308477 Starting resistance for a rotating electrical machine |
| 12/22/1981 | US4307327 Control arrangement for single phase AC systems |
| 12/10/1981 | WO1981003586A1 Motor voltage controller device |
| 11/17/1981 | US4301395 Phase-lock control device |
| 11/10/1981 | US4300089 Device for starting AC load using AC generator as power source |
| 11/10/1981 | CA1112297A1 Motor control system |
| 10/27/1981 | US4297739 Device for exciting synchronous machine |
| 10/20/1981 | US4296366 Motor starting switch |
| 10/13/1981 | US4295080 System for controlling rotational direction switchover and for variably controlling rotational speed of motor |
| 09/29/1981 | US4292555 Start winding cut-out circuit for an electric motor |
| 09/08/1981 | US4288732 Forced commutated starting circuit for load commutated inverter drive system |
| 09/08/1981 | US4288726 Permanent magnet motor control system |
| 09/02/1981 | EP0034979A1 Fuel burner provided with an electric motor |
| 07/08/1981 | EP0031688A2 Electric motor start up control |
| 07/08/1981 | EP0031664A1 Internal combustion engine starter motor control arrangements |
| 07/07/1981 | US4277734 Electric brake motor |
| 06/30/1981 | US4276504 Control device for commutatorless motor |
| 06/30/1981 | CA1104207A1 Control circuit for use in a switching-type regulator |
| 06/23/1981 | CA1103754A1 D.c. motor position control |
| 06/17/1981 | EP0030282A1 Electrophotographic copier with reduction mode facility and control of scanning carriage |
| 06/16/1981 | CA1103306A1 Hybrid motor starter |
| 06/09/1981 | US4272714 Starter device for a single-phase asynchronous motor |
| 05/19/1981 | US4267635 Method of making a solid state electrical switch |
| 05/12/1981 | US4267492 Control circuit for a D.C. motor |
| 04/29/1981 | EP0027524A1 A control for a single phase AC motor |
| 04/07/1981 | US4259845 Logic control system for inverter-driven motor |
| 03/24/1981 | US4258368 Safety means for preventing the automatic restart of a motor |
| 03/17/1981 | US4256983 Voltage-to-frequency converter having a constant frequency mode of operation |
| 03/10/1981 | US4255695 Method and apparatus for control of inverter synchronous machine drive system |
| 03/05/1981 | WO1981000651A1 Variable speed electric machine having controlled magnetic flux density |
| 03/03/1981 | US4254343 Dual load control apparatus |
| 02/24/1981 | CA1096439A1 Rotor short-circuiting switch |
| 02/17/1981 | US4251793 PTC Resistor |
| 02/10/1981 | US4250442 Stable synchronous drive system for gyroscope rotor |
| 02/10/1981 | CA1095570A1 Star-delta connection change-over switch |
| 12/30/1980 | US4242626 AC Motor drive |
| 12/30/1980 | CA1092685A1 Control apparatus for two-speed single phase compressor |
| 12/23/1980 | US4241298 Speed control switch |
| 12/09/1980 | US4238715 Starting circuit for a trackbound electric propulsion vehicle having a synchronous linear motor |
| 12/02/1980 | US4237508 Electrical control |
| 11/18/1980 | US4234834 D.C. Motor directional control |
| 11/18/1980 | CA1089927A1 Optimized electric motor having controlled magnetic flux density |
| 11/13/1980 | WO1980002487A1 Voltage-to-frequency-converter |
| 10/29/1980 | EP0017816A1 Device for changing the relative phase-angle positions of the drive shafts of an electric gang drive |
| 10/15/1980 | EP0017266A1 Moving-picture camera with motorised displacing means for the optical system |
| 10/14/1980 | CA1087720A1 Starting device for an asynchronous motor |
| 10/07/1980 | US4227127 Motor speed control circuit having improved starting characteristics |
| 09/30/1980 | CA1086850A1 Power contactor and control circuit |
| 09/17/1980 | EP0015501A1 Starting device for the field-oriented control or regulation of an asynchronous machine |
| 09/16/1980 | US4222608 Control system for adjustable head restraint on automotive seat |
| 09/16/1980 | CA1085911A1 Electric motor having controlled magnetic flux density |
| 09/09/1980 | CA1085452A1 Shaft turning parking bus for multiple unit installations utilizing a single motorized generator control system |
| 09/02/1980 | US4220868 Method of and system for controllably connecting load to generator |
| 08/26/1980 | US4219764 Apparatus for use with a motor drive |
| 08/12/1980 | US4217528 Apparatus for preventing malfunction in a circuit controlling an electrical component maintaining a residual voltage after removal of energization |
| 08/05/1980 | CA1083216A1 Control system for a compound dc electric motor |
| 07/29/1980 | US4215303 Washing machine motor control system |
| 07/09/1980 | EP0013225A1 Apparatus for controlling the reciprocating displacement of mobile equipment such as an electrostatic sprayer carriage, by means of an asynchronous motor with squirrel cage rotor |
| 07/01/1980 | US4210851 Motor control system |
| 06/17/1980 | US4208557 Switches |
| 05/13/1980 | US4203059 Electronic current sensor and controller for automatic power antenna |
| 04/29/1980 | US4200829 Circuit for protecting induction motors |
| 04/29/1980 | CA1076686A1 Cold start system for motors |
| 04/29/1980 | CA1076684A1 Control system for pole-changing-motor-driven compressor |
| 04/01/1980 | US4196462 Protective control circuit for induction motors |
| 03/25/1980 | CA1074395A1 Quadrature axis field brushless exciter |
| 03/04/1980 | CA1073049A1 Main field current transient control circuit for dynamoelectric machines |
| 01/29/1980 | US4185575 Ramp speed integrated motor controller for sewing machines |
| 01/15/1980 | US4184107 Control circuit for a predetermined angular movement of a DC motor |
| 01/01/1980 | CA1069170A Drive circuits for direct current electric motors |
| 12/25/1979 | US4180852 Control circuit for use in a switching-type regulator |
| 12/18/1979 | CA1068330A1 Control and protection of brushless synchronous motors |
| 11/20/1979 | CA1066760A1 Control circuit for two-speed single phase motor |
| 11/13/1979 | CA1066359A1 Switching contactor circuit for five-lead two-speed single-phase motor |
| 11/06/1979 | CA1065963A1 D.c. motor starter with speed discrimination |
| 10/30/1979 | CA1065377A1 Liquid-cooled starting motor for large inertia load |
| 10/16/1979 | CA1064573A1 Time-delay start winding cut-out circuit for an electric motor |
| 09/25/1979 | US4169242 Resistor grid protector |
| 08/07/1979 | USRE30068 Pulsating torque apparatus and method |
| 07/17/1979 | US4161681 Prime mover, method of operating such and circuit |
| 07/03/1979 | US4160196 Two-phase ac electric motor control circuit |
| 06/19/1979 | CA1056903A1 Compound dc electrical motor with shunt field demagnetization protection |
| 05/30/1979 | EP0002116A1 Control circuit for a D.C. motor for example in an electrically powered vehicle |
| 05/29/1979 | US4156899 Current source inverter |
| 05/22/1979 | US4156262 Overload-protection circuit for electric motors |
| 05/22/1979 | US4156172 Main field current transient control circuit for dynamoelectric machines |
| 05/01/1979 | US4152634 Power contactor and control circuit |
| 05/01/1979 | US4152630 Multi-phase motor |
| 04/04/1979 | EP0001208A1 Star-delta change-over switch |
| 04/03/1979 | US4147965 Switching device for feeder in machine tools |
| 03/20/1979 | US4145646 Start-stop circuit for split phase motor |
| 03/20/1979 | US4145640 Electric cart drive control system |
| 02/27/1979 | US4142136 Control circuit for starting a motor |
| 02/20/1979 | US4140950 Control system for two-phase reversible motor |
| 02/13/1979 | US4139807 Rotor short-circuiting switch |