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