Patents for H02P 1 - Arrangements for starting electric motors or dynamo-electric converters (9,872)
04/1984
04/04/1984EP0104965A1 Liquid rheostat with variable level for starting an electric motor
04/03/1984US4441062 Missing pulse detector for a synchronous motor drive
04/03/1984CA1164933A1 Variable speed electric machine having controlled magnetic flux density
03/1984
03/28/1984EP0103930A2 Reversing device for a two-pole single-phase synchronous motor
03/20/1984US4438383 Rock crusher motor control circuit for preventing relay drop out
03/13/1984US4436486 Circulating pump unit
02/1984
02/28/1984US4434394 Circuit for controlling multiple rated motors
02/28/1984US4434390 Motor control apparatus with parallel input, serial output signal conditioning means
02/28/1984CA1163010A1 Electrical aircraft engine start and generating system
02/14/1984US4431953 Circuit for operating a synchronous motor from a dc supply
02/14/1984CA1162233A1 Magnetic device for controlling starting of a single phase induction motor
02/07/1984CA1161930A1 Marine propulsion system
01/1984
01/24/1984US4427929 Window and door locking system for vehicles
01/17/1984US4426605 Method of operating a shunt-wound DC motor as well as controlling device for the execution and application thereof
01/10/1984US4425539 Control system for AC induction motor
12/1983
12/28/1983EP0096953A1 Hoisting system
12/20/1983US4422030 A.C. Motor control
12/20/1983US4422029 Instant reverse control circuit for a single phase motor
12/20/1983US4422028 Brushless excitation system with a holding current resistor
12/20/1983US4422023 Starting circuit for electronically controlled motor apparatus
11/1983
11/22/1983US4417192 Sectional motor starting winding circuit for three-phase motors
11/10/1983WO1983003928A1 Device for starting electric motors and method for its actuation
10/1983
10/18/1983US4410845 Backspin detection circuit for a submersible pump
10/11/1983US4409533 Method of restarting induction motor and apparatus for carrying out the same
10/11/1983US4409532 Start control arrangement for split phase induction motor
09/1983
09/14/1983EP0088200A1 Method and apparatus for running control of a loom
09/13/1983US4404511 Motor power factor controller with a reduced voltage starter
08/1983
08/31/1983EP0087173A1 Self-starting single-phase synchronous motor
08/30/1983USRE31367 Motor starting and protecting apparatus
08/30/1983US4401933 Motor control system for a single phase induction motor
08/16/1983US4399394 Electronic motor start switch
07/1983
07/27/1983EP0084109A1 Arrangement for rotor frequency dependent short circuiting of the rotor series resistors for driving motors
07/26/1983US4395671 Control system and method for motor starting
07/19/1983US4394605 Load drive control system
06/1983
06/28/1983US4390825 Auto-threshold slow start control circuit for a centrifuge
06/28/1983US4390821 Device for changing the relative angular positions of operating shafts of a group electric drive
06/14/1983US4388581 Dynamoelectric machine
06/14/1983US4388580 Magnetic device for controlling starting of a single phase induction motor
06/07/1983US4387330 Balanced single phase alternating current induction motor
05/1983
05/11/1983EP0078387A1 Print head velocity control system with error count averaging
05/03/1983US4382217 Starting control circuit for an A.C. motor
04/1983
04/27/1983EP0077455A1 Print head control system with controlled acceleration and deceleration
04/20/1983EP0077118A1 Motor power factor controller with a reduced voltage starter
04/05/1983CA1144263A1 Starter circuit for compressor units
03/1983
03/30/1983EP0075138A1 Starting relay for electric single-phase motors with an auxiliary start winding
03/29/1983US4378520 D-C Relay relief control for A-C electric motor
03/22/1983CA1143431A1 Starter device for a single-phase asynchronous motor
03/08/1983US4376262 Method and apparatus for controlling a digital controlled brushless motor
03/01/1983US4375613 Electrical control circuit
02/1983
02/15/1983US4374348 Wiper device
02/01/1983US4371823 Apparatus and method for starting textile winder synchronous motor drives
01/1983
01/25/1983CA1140208A1 Full voltage start of vibratory excitors
01/05/1983EP0069044A1 Electric current converter motor of the synchronous type
01/05/1983EP0068113A1 Auto-threshold slow start control circuit for a centrifuge
01/04/1983US4367435 Motor control system
12/1982
12/28/1982US4366426 Starting circuit for single phase electric motors
12/28/1982CA1138546A1 Ptc resistor with symmetrical-joined connections
12/21/1982CA1138026A1 Motor starting and protecting apparatus
12/14/1982CA1137549A1 Method and apparatus for control of inverter synchronous machine drive system
11/1982
11/30/1982US4361793 Motor voltage controller device
11/25/1982WO1982004165A1 Starting control circuit for an a.c. motor
11/23/1982US4360768 High current acceleration servomotor driver
11/09/1982US4358724 Solid state servo amplifier for a D.C. motor position control system
10/1982
10/26/1982US4355458 Method of making an electrical control
10/26/1982CA1134470A1 Starting resistance for a rotating electrical machine
10/20/1982EP0062850A1 Iron core choke coil with an air gap for starting a single or polyphase squirrel cage asynchronous motor with a low starting torque
10/19/1982CA1133981A1 Chopper activated control circuit for a dc motor with current return bride
10/05/1982US4353022 Torque reversing motor control structure and method
09/1982
09/28/1982US4352051 Single phase motor with reversible auxiliary windings
09/28/1982CA1132696A1 Thermal relays particularly for starting single-phase asynchronous motors
09/21/1982US4350945 Phase converter controlled by D-C power
09/15/1982EP0060172A1 Protection device for a motor of a hermetically sealed motor-compressor unit
09/08/1982EP0059245A1 Part-winding starting circuit for three-phase motors
09/07/1982US4348626 Two-speed single phase motor with centrifugal switch
09/07/1982CA1131300A1 Combination starter-protector device
07/1982
07/27/1982US4341987 Two-speed single phase motor with centrifugal switch
07/27/1982US4341983 Automatic sequence control system
07/27/1982US4341981 Rotary direction reversing apparatus for a motor of a microcassette tape transport
07/06/1982US4338557 Variable speed electric machine having controlled magnetic flux density
07/06/1982US4338525 Marine propulsion system
06/1982
06/29/1982CA1126804A1 Device for starting single or multi-phase squirrel-cage induction motors
06/24/1982WO1982002127A1 Motor control system
06/23/1982EP0054446A1 Electric asynchronous motor, means for controlling the feeding of such a motor and circulating drive comprising such a motor
06/15/1982US4335342 Reciprocating drive system for a body such as a carriage supporting electrostatic means for spraying a pulverized material, the system including an asynchronous squirrel cage motor
06/15/1982US4335340 Electric reversible motor control
06/09/1982EP0053208A1 Motor control system for a single phase induction motor
06/08/1982CA1125369A1 Rotary phase converter
06/02/1982EP0052659A1 Motor voltage controller device
06/01/1982US4332528 Compression type refrigeration device
06/01/1982US4332461 Electrical drive for scanning optics in a continuously variable reduction copier
06/01/1982CA1124781A1 Control circuit for discharging the field winding of a synchronous motor
05/1982
05/18/1982US4330743 Electrical aircraft engine start and generating system
05/18/1982US4330740 Energizing circuit for providing low voltage starting for submersible pump motor
05/12/1982EP0051478A2 Induction motor control system
04/1982
04/13/1982US4325012 Start winding cut-out circuit for an electric motor
04/06/1982US4323828 Apparatus for use with a motor drive
03/1982
03/16/1982US4320328 Apparatus for full voltage start of vibratory excitors
02/1982
02/02/1982US4314189 Device for controlling the commutating angle of an inverter device
02/02/1982CA1117588A1 Prime mover, method of operating such and circuit
02/02/1982CA1117587A1 Control system for two-phase reversible motor
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