Patents for H02P 1 - Arrangements for starting electric motors or dynamo-electric converters (9,872) |
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10/13/1999 | CN1231541A Speed controller for induction motor |
10/13/1999 | CN1045699C Process and device for supplying a polyphase electric motor during starting |
10/07/1999 | DE19913941A1 Control unit for variable control of rpm of asynchronous motor |
10/06/1999 | CN2342515Y Ringless brushless startor for winding rotor motor |
09/30/1999 | WO1999049563A1 Dual stator winding induction machine drive |
09/30/1999 | WO1999049562A1 A solid state motor starter with energy recovery |
09/30/1999 | DE19813095A1 Vorrichtung zum Steuern eines Einphasen-Synchronmotors An apparatus for controlling a single-phase synchronous motor |
09/30/1999 | CA2324110A1 A solid state motor starter with energy recovery |
09/29/1999 | EP0945976A2 An electric circuit |
09/29/1999 | EP0945973A2 Control device for a single phase synchronous motor |
09/29/1999 | CN1229899A Air conditioner |
09/28/1999 | US5959428 Starting control unit for a refrigeration machine |
09/21/1999 | US5955861 Sensorless switched reluctance motor driving apparatus and method thereof |
09/21/1999 | US5955859 Interface module between a field bus and electrical equipment controlling and protecting an electric motor |
09/16/1999 | DE19655011A1 Vorrichtung zum kontinuierlichen Mischen eines Feststoffes mit einer Flüssigkeit, insbesondere eines Baustoffes mit Wasser Apparatus for continuously mixing a solid with a liquid, especially a building material with water |
09/15/1999 | CN2338913Y Electronic starter |
09/14/1999 | US5952811 Device for shutting off current through a motor start-up circuit after a specified wait period |
09/02/1999 | WO1999044108A1 Synchronization controller |
08/24/1999 | US5942875 Method and device for operating an asynchronous machine |
08/10/1999 | US5936374 Repulsion motor |
08/03/1999 | US5932986 In the manufacture of the semiconductor wafers |
08/03/1999 | US5932981 Apparatus and method for reduced voltage controller |
07/28/1999 | EP0931378A1 Operating system for a vacuum pump |
07/28/1999 | CN2331129Y AC motor power-saving protection overall controller |
07/28/1999 | CN2331128Y Motor start-up self-control device |
07/28/1999 | CN2331127Y Limited current start-up self-control cabinet |
07/22/1999 | WO1999037014A1 A driver circuit for a synchronous, alternating-current electric motor |
07/22/1999 | DE19900982A1 Motor drive system for vehicle windows |
07/21/1999 | EP0930696A1 A driver circuit for a synchronous, alternating-current electric motor |
07/21/1999 | CN2330110Y Flexible starting multi-stage variable frequency speed regulator for microcomputer controlled asynchronous motor |
07/21/1999 | CN2330109Y PTC starter with nozzle |
07/20/1999 | US5925998 Energy saving motor control device |
07/14/1999 | CN2329118Y Speed controller for DC motor |
07/13/1999 | US5923143 Used with a multi-phase motor and a multi-phase power source |
07/01/1999 | WO1999033163A1 Motor controller unit having thermal startup protection |
06/30/1999 | EP0926809A1 Control device for an electric motor |
06/30/1999 | CN2327102Y Centralized distribution protection device for oil-well oil-pumping machine group |
06/30/1999 | CN1221248A Motor control apparatus |
06/29/1999 | US5917295 Motor drive system having a plurality of series connected H-bridges |
06/23/1999 | EP0924849A2 Motor control apparatus |
06/23/1999 | EP0923802A1 Permanent magnet direct current (pmdc) machine with integral reconfigurable winding control |
06/23/1999 | CN2325923Y Liquid variable resistor starting arrangement for cage motor |
06/16/1999 | CN2324681Y Fire-extingurishing electric control cabinet |
06/15/1999 | US5912522 Permanent magnet direct current (PMDC) machine with integral reconfigurable winding control |
06/10/1999 | WO1999029035A1 Method for controlling turn-on/off of motor preheater and motor preheater |
06/09/1999 | EP0921631A1 Speed control method for a monophase asynchronous motor |
06/08/1999 | US5910718 Motor control apparatus |
05/26/1999 | CN1217605A Drive device without sensor for switch-type reluctance motor and method therefor |
05/12/1999 | DE19851707A1 Procedure for starting single phase induction motor, especially of pump used in dish washing machines |
05/12/1999 | CN1043395C Method and apparatus for controlling single phase induction motor |
05/06/1999 | EP0843912B1 Process and device for operating an asynchronous motor |
05/06/1999 | EP0636286B1 Process for controlling the revolution speed of a motor |
04/28/1999 | EP0911957A1 Single-phase asynchronous motor with two windings |
04/28/1999 | EP0911953A1 Control device for a vehicle starter |
04/28/1999 | EP0910892A1 Absolute angle estimation apparatus for a sensorless switched reluctance machine system |
04/28/1999 | CN2316769Y Liquid resistance starting slip speed-regulating controller |
04/28/1999 | CN2316768Y Reversing switch for electric machine |
04/27/1999 | US5898289 Motor start-up circuit with a triac and PTC thermistors |
04/21/1999 | CN2315693Y Protector for motor load dropping and starting control circuit |
04/20/1999 | US5896021 Removal of moisture from induction motors |
04/15/1999 | DE19744729A1 Electric motor run-up device |
04/06/1999 | US5892885 Variable speed control switch for direct current electric power tools |
04/06/1999 | US5892349 Control circuit for two speed motors |
04/06/1999 | CA2159781C Apparatus for starting a switched reluctance motor |
03/31/1999 | EP0905874A1 Brake motor comprising an asynchronous motor with capacitor and zero current brake |
03/30/1999 | US5889374 Thyristor control switch for a bidirectional motor |
03/24/1999 | EP0903258A2 Control system for hybrid vehicle |
03/24/1999 | CN2311889Y Controller for electric machine |
03/17/1999 | CN1042519C Device for controlling of elevator |
03/16/1999 | US5883488 Method and apparatus for multispeed hybrid start switch for a motor |
03/16/1999 | US5883486 Apparatus and method for soft-starting a three-phase motor |
03/16/1999 | CA2158845C Brushless repulsion motor utilizing electronic switching circuits |
03/16/1999 | CA2153957C Control system for smoke exhauster |
03/11/1999 | WO1999012253A1 Improved single-phase induction motor safety controller |
03/02/1999 | US5877606 Starting of synchronous machine without rotor position or speed measurement |
02/10/1999 | CN2307401Y 液体电阻起动器 Liquid resistance starter |
02/02/1999 | US5867005 AC motor winding circuit |
01/27/1999 | CN2305804Y Electronic voltage reduction startor |
01/27/1999 | CN1206239A Starting of single-phase motors |
01/21/1999 | CA2242134A1 Energy saving motor control device |
01/20/1999 | EP0892490A1 Starting of single-phase motors |
01/20/1999 | CN1205575A Motor starting and protecting apparatus |
01/19/1999 | US5862301 Motor control with clamped filter output |
01/13/1999 | EP0891040A1 Electric drive, especially for a garage door, with a direct-current motor |
01/13/1999 | EP0890967A2 Motor starting and protecting apparatus |
01/12/1999 | US5859514 For controlling a load |
01/12/1999 | US5859513 Starting and synchronizing system for line-start permanent magnet motor |
01/12/1999 | US5859509 Adjustable speed control for children's ride-on vehicle |
01/12/1999 | US5857349 Refrigerating apparatus, and refrigerator control and brushless motor starter used in same |
01/12/1999 | CA2060354C Ac motor drive system |
01/07/1999 | EP0889580A2 Device and method to start a synchronous motor |
01/07/1999 | EP0889579A2 Method and circuit to contol the starting of a single phase asynchronous motor |
01/07/1999 | EP0852084A4 Switching circuit with lockout feature |
12/22/1998 | CA2151532C Auxiliary starting switched reluctance motor |
12/17/1998 | DE19725029A1 System for sucking out air containing particles, e.g. dust |
12/16/1998 | CN1202035A Method of and apparatus for starting AC electric motor |
12/09/1998 | EP0883236A1 The driving circuit system constituted by the multiple DC power driving devices of the DC or AC motors in mixture of series and parallel combinations |
12/09/1998 | EP0883232A1 Method of and apparatus for starting ac electric motor |
12/09/1998 | EP0882324A1 Electric motor starting circuit |
12/09/1998 | CN1201565A Switching circuit with lockout feature |