Patents for H02P 1 - Arrangements for starting electric motors or dynamo-electric converters (9,872) |
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05/14/1997 | CN1149693A Starting current control apparatus for air conditioner |
05/13/1997 | US5629598 Speed control for induction motor having improved sensing of motor operative conditions |
05/06/1997 | US5627411 Switching circuit with lockout feature |
05/02/1997 | EP0771065A1 Start-up method for a rotating variable speed electrical drive |
04/22/1997 | US5623400 Control system for smoke exhauster |
04/16/1997 | CN2252449Y Motor star-delta start electronic controller |
04/15/1997 | US5621296 Three phase motor conversion and monitoring circuit |
04/09/1997 | EP0766886A1 Method of stepwise voltage control for supplying an induction motor |
04/09/1997 | CN2251834Y AC-ac frequency changing starter for ac motor |
04/08/1997 | CA2036026C Electric motor controller with bypass contactor |
04/02/1997 | CN2251111Y Voltage regulator for air conditioner and air conditioner with voltage regulator |
04/01/1997 | US5617001 A.C. motor starting control circuit utilizing triggerable semiconductor switching device |
03/27/1997 | WO1997011523A1 Switching circuit with lockout feature |
03/26/1997 | CN1034380C Double-harmonic started and speed-regulated AC motor stator winding |
03/25/1997 | US5614799 Brushless direct current motor having adjustable motor characteristics |
03/20/1997 | DE19534423A1 Starting and running control device e.g. for single-phase electric pump motor with permanent magnet rotor |
03/19/1997 | CN2249867Y Rotation speed controller of hood |
03/19/1997 | CN1034306C Method of and appts. for driving three-phase motor with single-phase source |
03/18/1997 | US5612605 Auto boost for voltage/frequency motor controller |
03/13/1997 | WO1997009775A1 Synchronous motor |
03/13/1997 | DE19635192A1 Electric induction motor with high starting torque e.g. for space travel applications |
03/12/1997 | EP0761850A1 Method for starting up and braking a carding machine and switching system for driving a carding machine |
03/05/1997 | EP0760074A1 Refrigerating apparatus, and refrigerator control and brushless motor starter used in same |
02/27/1997 | WO1997007589A1 Process and device for operating an asynchronous motor |
02/26/1997 | CN2248421Y power-saving controller for electric motor |
02/19/1997 | CN1143276A Circuit unit for charging capacitor |
02/05/1997 | EP0757432A2 Starting of synchronous machine without rotor position of speed measurement |
02/05/1997 | CN2246870Y Controller of three-phase asynchronous motor |
01/29/1997 | CN2246351Y Non-contact starting controller of single-phase asynchronous motor |
01/29/1997 | CN2246350Y Power source phase-sequence conversion control device |
01/28/1997 | US5598080 Starting device for a single-phase induction motor |
01/28/1997 | US5598077 Control apparatus and a control method for a servomotor |
01/28/1997 | US5598073 Drive circuit for a brushless direct-current motor |
01/15/1997 | EP0753922A2 Circuit for charging a capacitor |
01/15/1997 | CN2245304Y Solid-state energy-saving starter for ac motor |
01/15/1997 | CN2245303Y Rotating brushless sensitive frenquency rheostat |
01/15/1997 | CN1140211A Centrifugal hydroextracting apparatus |
01/08/1997 | EP0752752A1 Changeover switching device for paralleling capacitors and, specifically, the start and und run capacitors of rotating-field asynchronous motors with single-phase power supply and intermittent duty cycle |
01/08/1997 | CN1033776C Start and protection for induction motors |
12/31/1996 | US5589753 Rate effect motor start circuit |
12/31/1996 | US5589745 Drive circuit for a brushless direct-current motor |
12/25/1996 | CN2243741Y Impedor with a novel initiation model |
12/24/1996 | US5587641 Control system for a brushless machine |
12/11/1996 | CN2242542Y Multiple stage SCR increased voltage starting arrangement |
12/04/1996 | CN2241942Y Reactance hanging fan speed regulator with low-grade and quickly starting device |
12/04/1996 | CN2241941Y Rotor frequency conversion controlling electric motor |
12/04/1996 | CN1137196A Energy-saving controller for changing motor power |
11/27/1996 | EP0653116B1 A method of determining a residual flux of an inverter-supplied squirrel cage induction machine |
11/27/1996 | CN1136726A Thyristor A.C. voltage regulator |
11/26/1996 | CA2060440C Ac motor drive system |
11/13/1996 | EP0741929A1 One switch multi-phase modulator |
11/06/1996 | EP0741448A1 Soft start control method and device |
11/06/1996 | CN2239677Y Single phase motor spirally-controlled switch |
11/05/1996 | US5572100 Semiconductive power unit for variable speed drive motor |
10/30/1996 | CN2239095Y Electronic starting switch for single-phase motor |
10/29/1996 | US5569986 Soft start control apparatus for drive motors of a rotor spinning machine |
10/23/1996 | CN2238505Y Liquid variable resistance voltage reducing starter for squirrel-cage motor |
10/23/1996 | CN1134063A Three phase motor control |
10/22/1996 | US5568033 On-site electric motor start-up diagnostic tool |
10/16/1996 | CN2237902Y Full-contactless ac switch cabinet of stator and rotor with electronic interlocking apparatus |
10/16/1996 | CN2237901Y AC power electronic switch cabinet |
10/09/1996 | EP0736946A1 Interface module for a field bus and electrical apparatus for controlling and protecting an electrical motor |
10/09/1996 | CN2237299Y Delay stepless speed regulator for ceiling fan |
10/09/1996 | CN2237297Y Single and three phase common asynchronous motor |
10/09/1996 | CN1132961A Single-phase induction motor and refrigerator using single-phase induction motor |
10/09/1996 | CN1032996C Cross-bridge type open-phase protection circuit of power supply and its protection device |
10/08/1996 | US5563489 Starter contact integrity test |
10/02/1996 | EP0735661A2 Apparatus and method for starting a single-phase variable reluctance motor |
10/02/1996 | DE19610189A1 Spin dryer |
10/02/1996 | DE19509365A1 Harmonics-free starter system for async motor |
10/01/1996 | US5561357 Starting device and circuit for starting single phase motors |
09/30/1996 | CA2172934A1 Apparatus and method for starting a single-phase variable reluctance motor |
09/26/1996 | WO1996029764A1 Cross-connect method and apparatus |
09/26/1996 | CA2214890A1 Cross-connect method and apparatus |
09/25/1996 | EP0734117A2 Torque improvement in reluctance machines |
09/25/1996 | EP0733279A1 Repulsion motor |
09/24/1996 | US5559421 Apparatus for removing harmonic components of an electric power frequency generated in electric power generation equipment |
09/24/1996 | US5559418 Starting device for single phase induction motor having a start capacitor |
09/22/1996 | CA2172121A1 Torque improvement in reluctance machines |
09/19/1996 | WO1996028874A1 Self-starting controllable ac motor |
09/19/1996 | WO1996028700A1 Refrigerating apparatus, and refrigerator control and brushless motor starter used in same |
09/18/1996 | EP0732801A2 Apparatus for starting a switched reluctance motor |
09/18/1996 | CN1131266A Refrigerating circulation arrangement |
09/11/1996 | CN2235171Y Safety energy-saving comprehensive control cabinet for low-voltage AC electric machine |
09/11/1996 | CN1130960A Versatile AC dynamo-electric machine |
08/20/1996 | US5548199 Optimal power supply for an electric motor |
08/14/1996 | CN2233134Y Non-contact frequency-sensing variable resistance starter |
08/13/1996 | US5545965 Three phase motor operated from a single phase power supply and phase converter |
08/07/1996 | CN2232639Y Reduced voltage starter of three-phase electric motor |
08/06/1996 | US5543694 Control circuit for feedback, motor-operated valve |
07/31/1996 | CN1127956A Impulse on-off control circuit |
07/28/1996 | CA2168168A1 Device for the automatic connection and disconnection of the starting condenser in single-phase asynchronous electric motors |
07/23/1996 | US5539293 Rotor position encoder having features in decodable angular positions |
07/23/1996 | US5537834 Inductively activated control and protection circuit for refrigeration systems |
07/17/1996 | CN1032343C AC motor drive system |
07/17/1996 | CN1032342C AC motor drive system |
07/16/1996 | US5537020 Method and apparatus for starting up a synchronous machine |
07/04/1996 | WO1996020528A1 Apparatus and method for starting a synchronous machine |
07/03/1996 | CN2230483Y Stepless frequency-variable starter of permanent-magnetic brushless electric motor |
07/02/1996 | US5532563 Disk device with auxiliary battery and start method thereof |