Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02P - Control or regulation of electric motors, generators, or dynamo-electric converters; Controlling transformers or reactors or choke coils › H02P 23 - Arrangements or methods for the control of ac-motors characterised by a control method other than vector control
Patents for H02P 23 - Arrangements or methods for the control of ac-motors characterised by a control method other than vector control (5,487)
11/1984
11/20/1984US4483419 Elevator motoring and regenerating dynamic gain compensation
11/14/1984EP0124738A2 Industrial robot with three-phase single drive
11/14/1984EP0124642A2 Speed governor with automatic compensation of the dividing error of a pulse generator
11/14/1984EP0124619A1 Controller for ac motor
11/13/1984US4482852 Motor slip controller for AC motors
11/13/1984US4482850 Control circuit for DC capstan motor
11/13/1984US4482031 AC elevator control apparatus
11/13/1984US4481786 Electronic control for a domestic appliance
11/06/1984US4481457 Method for providing adaptive control of variable speed AC motor drives
11/06/1984US4481456 Microprocessor controlled multifrequency AC converter
10/1984
10/30/1984US4480219 Phase-to-voltage converter
10/30/1984US4480215 Synchronous electric motor control systems
10/25/1984WO1984004213A1 Electric power delivery system and method
10/23/1984US4479078 Brushless motor controller
10/23/1984US4478315 Apparatus for operating an AC power elevator
10/16/1984US4477750 In an information storage device
10/11/1984WO1984004006A1 Servo control circuit
10/10/1984EP0121214A1 Static changing device for drive-brake operation of variable speed asynchronous motors fed by a current converter
10/09/1984US4476422 Single phase four pole/six pole motor
10/02/1984US4475074 Apparatus for determining the common frequency of two independently variable electrical a-c variables, especially in a rotating-field machine
09/1984
09/26/1984EP0119374A1 Method of controlling the running of an electrical machine, and device using this method
09/25/1984CA1175101A1 Power factor controller
09/19/1984EP0118783A1 Detector circuit
09/19/1984EP0118544A1 Improved induction motor controller
09/18/1984US4472670 Simplified connections to control speed relating to electrical rotating machinery
09/18/1984US4472667 D.C. Servo motor speed regulator
09/13/1984EP0087429A4 Marine drive system.
09/11/1984US4471281 Digital control device
09/11/1984CA1174269A1 Energy saver control for single phase motors
09/05/1984EP0117494A1 Speed control device for stepping motor
09/04/1984US4469999 Regenerative drive control
09/04/1984US4469998 Three-phase power factor controller with induced emf sensing
09/04/1984US4469997 Self generative PWM voltage source inverter induction motor drive
08/1984
08/29/1984EP0116912A1 Method of controlling motor speed
08/29/1984EP0116908A2 Control arrangement and system comprising this control arrangement and an inverter for induction motor speed controller
08/29/1984EP0116831A1 Electric control device for a roller drive motor of a pipe rolling mill
08/29/1984EP0116677A1 Stepping motor drive circuit
08/29/1984EP0027129B1 D.c. motor speed control circuit
08/28/1984US4468724 Method and apparatus for controlling load current
08/28/1984US4468603 Load voltage-current displacement regulator motor control system
08/28/1984US4468599 Plug current regulator
08/28/1984CA1173495A1 Energy economizer for induction motors
08/21/1984CA1173104A1 Instant reverse control circuit for a single phase motor
08/14/1984US4465977 Erroneous pulse sequence detector
08/14/1984CA1172733A1 Sewing machine speed control system having quick response characteristic
08/14/1984CA1172689A1 Digital programmed controller for multi-mode brushless electric motor
07/1984
07/31/1984US4463435 Printer control system with controlled acceleration and deceleration
07/31/1984US4463303 Six pole/eight pole single-phase motor
07/31/1984CA1171907A1 Pulsed thyristor trigger control circuit
07/25/1984EP0113951A1 Phase detector for three-phase power factor controller
07/25/1984EP0113848A2 Data in- and output device for a drive control device operated by a digital computer
07/24/1984US4461986 Motor control apparatus with phase related detector
07/18/1984EP0113503A1 Three-phase power factor controller with induced EMF sensing
07/17/1984CA1171132A1 Digital dc motor speed control circuit
07/10/1984US4459533 Variable slip drive system for induction motor
07/10/1984US4459531 Polyphase static inverter
07/10/1984US4459530 Electric rotating apparatus
07/10/1984US4459529 Power factor control circuit for AC motors
07/10/1984US4459528 Phase detector for three-phase power factor controller
07/03/1984US4458192 A.C. Motor drive apparatus
07/03/1984US4457639 Motor control for printer carriage
07/03/1984CA1170339A1 Backspin detection circuit for a submersible pump
06/1984
06/27/1984EP0111567A1 Apparatus for processing regenerative energy of ac motor
06/26/1984US4456865 High torque servo positioner using 3 phase variable frequency constant torque controller
06/21/1984WO1984002404A1 Method and apparatus for automatically setting the demand phase lag input to an induction-motor power factor controller
06/19/1984US4455521 Energy saver control for single phase motors
06/19/1984US4454930 Apparatus for controlling an AC power elevator
06/12/1984US4454462 Power factor motor controller
06/07/1984WO1984002235A1 Ac motor control system
06/07/1984WO1984002234A1 Servomotor control system
06/05/1984US4453114 Electromechanical actuator counter-EMF utilization system
05/1984
05/29/1984US4451770 Method and apparatus for determining the resistance of an AC motor stator
05/29/1984US4451112 Method and apparatus for controlling AC motor
05/23/1984EP0109076A2 Speed control apparatus of polyphase induction motors
05/22/1984US4450398 Microprocessor-based efficiency optimization control for an induction motor drive system
05/22/1984CA1167911A1 Digital motor speed controller
05/15/1984US4449088 Commutation failure correction scheme for a controlled current inverter
05/15/1984US4449082 Motor speed control system
05/10/1984WO1984001865A1 Controller for ac motor
05/08/1984US4447788 Method for optimizing the power input of a plurality of hysteresis motors connected in parallel
05/08/1984US4447786 Waveform synthesizer and motor controller
05/08/1984US4447771 Control system for synchronous brushless motors
05/08/1984CA1167147A1 Marine drive system
04/1984
04/25/1984EP0105930A1 Induction motor driving device
04/24/1984US4445078 Processor module for power factor controller
04/17/1984US4443852 Control apparatus for internal combustion engine
04/17/1984US4443747 Transitioning between multiple modes of inverter control in a load commutated inverter motor drive
04/04/1984EP0104931A2 A digital capstan servo circuit
04/03/1984US4441061 Motor speed control system
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
03/27/1984US4439718 Motor power control circuit for A.C. induction motors
03/21/1984EP0103215A1 Motor speed control apparatus
03/21/1984EP0103028A1 Speed control circuit for motor
03/20/1984US4438382 Three phase AC motor controller
03/20/1984CA1164114A1 Elevator system
03/15/1984WO1984001063A1 Improved induction motor controller
03/07/1984EP0102248A2 Arrangement for controlling the speed and positioning of an electric motor
03/07/1984EP0101773A1 Method and device for measuring the slip of a motor
03/06/1984CA1163316A1 Three phase power factor controller
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