| Patents for H02P 1 - Arrangements for starting electric motors or dynamo-electric converters (9,872) |
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| 03/02/1988 | EP0257628A2 Flux profile control for startup of an induction motor |
| 03/02/1988 | EP0257396A1 Process and device for the operation of a field-orientated rotating-field machine fed by a controlled converter |
| 03/02/1988 | CN87205928U Multi-functional electric motor starter |
| 02/24/1988 | CN86200209U Automatic converter for motors |
| 02/23/1988 | US4727305 Multi-function control system for an induction motor drive |
| 02/11/1988 | WO1988001111A1 Dc motor drive system |
| 02/10/1988 | CN86209047U Electronic under-current time relay |
| 01/27/1988 | EP0254709A2 Frequency converter |
| 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 | US4720638 Electronically commutated coaxial starter motor/alternator for an internal combustion engine |
| 01/12/1988 | US4719399 Quick discharge motor starting circuit |
| 01/12/1988 | US4719398 Coasting AC motor restart system and method |
| 12/23/1987 | EP0250339A1 Three-phase induction motor control device |
| 12/15/1987 | US4713594 Start-up control for switched reluctance motor |
| 12/02/1987 | EP0247352A1 Brushless exciter for a synchronous machine |
| 12/01/1987 | CA1229871A1 Load and speed sensitive motor starting circuit |
| 11/25/1987 | CN87203131U Safety type three-phase ac motor starter |
| 11/24/1987 | US4709292 Trouble detector apparatus for an air-conditioner including a counter and a timer |
| 11/18/1987 | CN85205552U Automatic controller for motor reversion |
| 11/17/1987 | US4707644 Auxiliary starting for electric motors |
| 11/17/1987 | CA1229402A1 Electric motor control |
| 11/10/1987 | US4705997 Bidirectional motor drive circuit |
| 11/10/1987 | US4705412 Protection circuit for drive transistor of printer head |
| 10/28/1987 | EP0243154A1 Parallel resonant single phase motor |
| 10/21/1987 | EP0241534A1 Switching control apparatus for vending machine alternating current device switching |
| 10/14/1987 | EP0241403A1 Bidirectional motor drive circuit |
| 10/07/1987 | EP0240069A2 Device for compensating variations of the driving moment of a one-phase synchronous motor |
| 10/07/1987 | EP0240068A2 Small household appliance driven by a one-phase synchronous motor |
| 10/07/1987 | CN86210042U Isolation extent-current type silicon controlled excitation device |
| 10/06/1987 | US4698537 Electrical drive systems incorporating variable reluctance motors |
| 09/30/1987 | EP0238940A1 Driving device with a three-phase motor |
| 09/29/1987 | US4697132 Reduction of voltage drop in power distribution systems and of loss of motor torque |
| 09/24/1987 | DE3609793A1 Circuit arrangement for starting a single-phase motor in the correct rotation direction |
| 09/22/1987 | US4695782 System for insuring rotational direction for an alternating current motor |
| 09/16/1987 | EP0237246A2 Starter generator system |
| 09/03/1987 | DE3606741A1 Automatically operating star/delta changeover device |
| 08/26/1987 | EP0233738A1 Dynamo electric machines |
| 08/25/1987 | US4689543 Frequency and voltage control for inverter powered AC motor |
| 08/25/1987 | US4689542 Method and apparatus for controlling induction motor |
| 08/25/1987 | US4689533 Controlled fan |
| 08/25/1987 | US4689508 Switched shaded-pole type induction motor |
| 08/18/1987 | US4687982 Instant reversing circuit |
| 08/18/1987 | US4687975 Motor control with radio control device |
| 08/13/1987 | DE3603686A1 Ventilation device for rooms |
| 08/12/1987 | EP0128182B1 Method and apparatus for automatically setting the demand phase lag input to an induction-motor power factor controller |
| 08/11/1987 | US4686598 Safety circuit for vehicle electromotive window lifts |
| 08/04/1987 | US4684868 Induction motor control apparatus and method for restart when rotating in shutdown |
| 07/28/1987 | US4683413 Reducing power consumption and monitoring synchronous running of three-phase electric motors |
| 07/28/1987 | US4683411 Synchronous motor protection |
| 07/21/1987 | US4682095 Circuit arrangement for controlling starting current of a motor |
| 07/21/1987 | US4682094 Control system for a power converter driving a synchronous motor |
| 07/21/1987 | US4681191 Speed control apparatus for elevator |
| 07/16/1987 | DE3603591C1 Pivoting-drive and locking mechanism for closure flaps of ventilation appliances |
| 07/15/1987 | EP0228535A1 Method and device to determine the flux angle of an induction machine i.e. to operate the machine according to position |
| 07/14/1987 | US4680517 Motor drive control device |
| 07/14/1987 | CA1224245A1 Power converter for ac load |
| 07/01/1987 | CN86204478U Power-saving starter for 3-phase squirrel-cage asynchronous motor |
| 06/23/1987 | US4675591 Induction motor winding |
| 06/23/1987 | US4675587 Control circuit for electric reclining seat |
| 06/23/1987 | US4675565 Capacitor-start parallel resonant motor |
| 06/19/1987 | DE3543983A1 Method for connecting a converter to a rotating-field machine which is still rotating but is not energized |
| 06/17/1987 | CN86107129A Induction motor control apparatus and method for restart when rotating in shutdown |
| 06/16/1987 | US4673849 Permanent magnet motor closed loop restarting system |
| 06/16/1987 | CA1223033A1 Reversing device for a two-pole single-phase synchronous motor |
| 06/10/1987 | CN85205389U Delta-delta (delta-delta) start and its equipment |
| 06/09/1987 | US4672290 Circuit arrangement in which a capacitor unit is connected in series with an a.c. load |
| 06/09/1987 | US4672289 Circuit configuration incorporating an A.C.-fed load connected in series with a capacitor unit |
| 06/09/1987 | US4672284 Permanent split-phase capacitor induction motor |
| 06/02/1987 | US4670735 Liquid rheostat with circulating electrolyte |
| 06/02/1987 | US4670697 Low cost, load and speed sensitive motor control starting circuit |
| 06/02/1987 | US4670693 Current supply device for plural loads |
| 05/26/1987 | CA1222304A1 Power window control for motor vehicle window |
| 05/19/1987 | US4667264 Apparatus for controlling the starting of a three phase load with its normal phase sequence |
| 05/06/1987 | CN85108321A Autocoupling reduced voltage starter without secondary surge current |
| 05/05/1987 | CA1221398A1 Electrical connection system for motors |
| 04/28/1987 | US4661751 Well pump control system |
| 04/23/1987 | WO1987002526A1 Switching control apparatus for vending machine alternating current device switching |
| 04/23/1987 | DE3536416A1 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 |
| 04/21/1987 | US4659973 Brushless exciter for controlling excitation of a synchronous machine |
| 04/21/1987 | CA1220840A1 Electronic control for a domestic appliance |
| 04/15/1987 | EP0217954A1 Electric power controller |
| 04/14/1987 | US4658196 Electric motor starting switch assembly |
| 04/14/1987 | US4658195 Motor control circuit with automatic restart of cut-in |
| 04/07/1987 | USH246 Motor drive circuit |
| 04/07/1987 | US4656575 Single phase to three phase dynamoelectric converter |
| 04/01/1987 | EP0216143A2 Circuit arrangement for starting and braking control of three-phase asynchronous motors and method for operating such a circuit arrangement |
| 04/01/1987 | EP0216039A2 A control system for reversing the rotation of a field wound motor |
| 03/31/1987 | CA1219892A1 Electrical connection system for switches |
| 03/25/1987 | CN86104950A Multifunction autocoupling pressure reduction starting controller |
| 03/24/1987 | US4652807 Starting method for induction motors |
| 03/17/1987 | US4651077 Start switch for a single phase AC motor |
| 03/10/1987 | US4649327 Electric motor control circuit |
| 03/10/1987 | US4649326 High voltage MOS SCR and power MOSFET "H" switch circuit for a DC motor |
| 03/10/1987 | CA1219037A1 Method and system for starting a motor-commutated scr inverter |
| 03/04/1987 | EP0212242A1 Control circuit for an AC supplied load in series with a capacitor bank |
| 03/04/1987 | CN86204419U Semmetry structure frequency sensitive rheostat |
| 03/03/1987 | US4647825 Motor controller |
| 02/19/1987 | DE3529164A1 Arrangement for current limiting |
| 02/19/1987 | DE3529039A1 Control arrangement for smooth starting of a multiphase asynchronous motor |
| 02/10/1987 | US4642545 Static phase conversion circuits for three-phase motors |