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