| Patents for H02P 6 - Arrangements for controlling synchronous motors or other dynamo-electric motors with electronic commutators in dependence on the rotor position; Electronic commutators therefor (19,185) |
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| 11/17/1988 | WO1988009081A1 Rectifier-type electric drive |
| 11/10/1988 | DE3812638A1 Brushless, bipolar multi-phase DC motor |
| 11/03/1988 | DE3710509C1 Method for commutating a DC motor |
| 11/02/1988 | EP0289362A2 A control system for brushless motors |
| 11/02/1988 | EP0139006B1 System for controlling synchronous motor |
| 11/01/1988 | US4782272 Brushless d.c. drive system |
| 10/26/1988 | EP0287607A1 A motor energizing circuit. |
| 10/25/1988 | US4780652 Circuit for controlling a brushless electric motor |
| 10/25/1988 | US4780651 Speed control apparatus for a motor |
| 10/20/1988 | WO1988008221A1 Circuit arrangement for operation of a brushless small single-phase motor in the d.c. network of motor vehicles |
| 10/20/1988 | DE3711397A1 Schaltungsanordnung zum betreiben eines buerstenlosen kleinen einphasenmotors am gleichspannungsnetz von kraftfahrzeugen Circuitry to operate a buerstenlosen small single phase motor at the same voltage grid of motor vehicles |
| 10/18/1988 | US4779165 Disk storage drive |
| 10/12/1988 | EP0285637A1 A motor energizing circuit. |
| 10/11/1988 | US4777419 Control apparatus and method for operating a switched reluctance motor |
| 10/11/1988 | US4777415 Method of and circuitry for generating information relating to speed of rotation in a circuit for controlling a brushless direct-current motor in order to regulate it with digital controls |
| 10/11/1988 | US4777414 Driving arrangement for a drive motor |
| 10/06/1988 | WO1988007783A1 Two-phase rectifier electric motor |
| 10/04/1988 | US4776011 Recursive key schedule cryptographic system |
| 09/21/1988 | EP0282764A2 Circuit arrangement for D.C. mains operated multiphase synchronous motor |
| 09/21/1988 | EP0282598A1 Dc motor drive system. |
| 09/20/1988 | US4772839 Rotor position estimator for switched reluctance motor |
| 09/14/1988 | EP0281798A2 Position control for the rapid positioning with a D.C. servo-motor |
| 09/14/1988 | EP0281616A1 Servo-system |
| 09/06/1988 | US4769581 Circuit for controlling a brushless electric motor |
| 08/31/1988 | EP0279839A1 Circuitry for electronically switching dc motors |
| 08/25/1988 | DE3804549A1 DC motor which has no commutator but has a permanent-magnet rotor |
| 08/16/1988 | US4764711 Back emf loop closure |
| 08/11/1988 | WO1988005977A1 Speed controller |
| 08/09/1988 | US4763347 Control system, electronically commutated motor system, blower apparatus and methods |
| 08/09/1988 | US4763052 Method and means for driving a brushless D.C. motor |
| 08/09/1988 | US4763051 Driving and positioning system |
| 08/09/1988 | US4763050 Driving and positioning system |
| 08/09/1988 | US4763049 Brushless drive system |
| 08/03/1988 | EP0276625A2 Control apparatus and method for operating a switched reluctance motor |
| 08/02/1988 | US4761599 Motor controller |
| 08/02/1988 | US4761578 Method and means for operating brushless DC motor with reversible DC power |
| 07/26/1988 | US4760317 Electrical arrangement for driving a rotary tool fitted in a handpiece |
| 07/26/1988 | US4760316 Method for controlling brushless d.c. motors and apparatus for carrying out the method |
| 07/26/1988 | US4760315 Brushless motor drive circuit |
| 07/19/1988 | US4758768 12-step commutation device for an electric motor |
| 07/12/1988 | US4757241 Pulse width modulation control system for an electronically commutated motor |
| 07/06/1988 | EP0273052A1 Device for detecting the rotational position of rotor of motor |
| 07/05/1988 | US4755728 Single-phase semiconductor electric motor and fan using the same |
| 06/21/1988 | US4752724 Commutation circuit for a collectorless d.c. motor |
| 06/15/1988 | EP0271125A1 Brushless d.c. motor and switching device for use in such a d.c. motor |
| 06/14/1988 | US4751438 Brushless DC motor control |
| 06/08/1988 | EP0270477A2 D.C. motor |
| 06/08/1988 | EP0270474A1 Electrically commutated, variable speed compressor control system |
| 06/08/1988 | EP0142563B1 System of controlling synchronous motor |
| 05/31/1988 | US4748388 Brushless d.c. motor having RC time-delay stage(s) and driver transistors which prevent simultaneous conduction by the power transistors of the wound conductor pair(s) of the motor winding |
| 05/31/1988 | US4748387 DC brushless motor driving method and apparatus for accurately controlling starting position of rotor |
| 05/31/1988 | US4748386 Controller of brushless DC motor |
| 05/31/1988 | US4748385 Brushless d.c. motor and switching device for use in such a d.c. motor |
| 05/31/1988 | CA1237471A1 Control system for an electronically commuted motor used in a laundering apparatus and method of operating |
| 05/25/1988 | EP0268020A1 A permanent magnet motor closed loop restarting system |
| 05/24/1988 | US4746850 Start-up system for a synchronous motor drive |
| 05/24/1988 | US4746844 Control and operation of brushless continuous torque toroid motor |
| 05/24/1988 | US4746843 Motor control circuit and drive amplifier for a permanent magnet DC torque motor |
| 05/24/1988 | CA1237184A1 Ferrite permanent magnet electrical machine and the application thereof within vehicle traction drives |
| 05/19/1988 | DE3638523A1 Arrangement for electronic commutation of a brushless DC motor |
| 05/18/1988 | EP0267301A1 System for remote transmission of angle of rotation and of force between driving and driven shafts |
| 05/18/1988 | EP0267283A1 Brushless dc motor |
| 05/17/1988 | US4745345 D.C. motor with axially disposed working flux gap |
| 05/17/1988 | CA1236876A1 Electric motor and tachometric generator unit |
| 05/11/1988 | DE3637786A1 Brake controller |
| 05/10/1988 | US4743815 Brushless permanent magnet motor system |
| 05/04/1988 | EP0265539A1 Single-phase brushless motor |
| 04/27/1988 | EP0264728A1 Method and apparatus for operating vacuum cleaner |
| 04/26/1988 | US4740734 Control apparatus for brushless dc motors |
| 04/26/1988 | US4740733 Autosynchronous motor comprising a device for determining the position of the rotor relative to the stator, and method of starting such motor |
| 04/21/1988 | WO1988002952A1 A motor energizing circuit |
| 04/21/1988 | WO1988002951A1 A motor energizing circuit |
| 04/19/1988 | US4739240 Commutator for switched reluctance drive |
| 04/05/1988 | US4736143 Torque control apparatus for rotary machine |
| 04/05/1988 | US4736141 Apparatus to control direction of rotation of a brushless motor as a function of power polarity |
| 03/30/1988 | EP0261540A1 Drive assembly with a drive motor |
| 03/29/1988 | US4734633 Speed control apparatus for a synchronous motor |
| 03/29/1988 | US4734628 Electrically commutated, variable speed compressor control system |
| 03/29/1988 | US4734627 Brushless D.C. motor having two conductors per phase energized alternately by complementary-conductivity-type semiconductors controlled by the same rotor-position signal, at times modified by a compensating technique |
| 03/16/1988 | EP0260156A1 Bar code scanner with DC brushless motor |
| 03/16/1988 | EP0259764A1 Electronic commutation control circuit for a DC motor |
| 03/10/1988 | WO1988001807A1 Circuitry for electronically switching dc motors |
| 03/10/1988 | WO1988001763A1 Servo-system |
| 03/08/1988 | US4730150 D.C. multi-phase bi-polar brushless motor |
| 02/25/1988 | DE3628306A1 Circuit arrangement for driving a DC motor having no commutator |
| 02/11/1988 | WO1988001111A1 Dc motor drive system |
| 02/09/1988 | US4724368 Multiple phase electronically commutated torque motor |
| 02/09/1988 | US4724365 Control circuit for direct current brushless motors |
| 02/02/1988 | US4723100 Brushless motor with a rotor pole position detector associated with each armature winding and electrically connected to another armature winding |
| 01/27/1988 | EP0254537A2 DC brushless motor driving method and apparatus for accurately controlling starting position of rotor |
| 01/27/1988 | EP0254215A1 Electric drive device for a surgical, especially a dental hand piece |
| 01/26/1988 | US4722020 Brushless D.C. motor having abnormal driving current cut-off circuit |
| 01/20/1988 | EP0253787A2 A method for controlling brushless d.c. motors and apparatus for carrying out the method |
| 01/20/1988 | EP0253436A1 Method and electronic circuit for starting a reluctance motor and reluctance motor provided with such an electronic circuit |
| 01/19/1988 | US4720663 Brushless motor speed control |
| 01/19/1988 | US4720638 Electronically commutated coaxial starter motor/alternator for an internal combustion engine |
| 01/07/1988 | EP0251785A2 Electric motor control method and apparatus |
| 01/07/1988 | EP0250587A1 Brushless dc motor control |
| 01/05/1988 | US4717864 Speed control method and apparatus for electronically commutated motors |
| 12/23/1987 | DE3607271A1 Brushless amplitude-controlled AC drive |