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 29 - Arrangements for regulating or controlling electric motors, appropriate for both ac- and dc-motors
Patents for H02P 29 - Arrangements for regulating or controlling electric motors, appropriate for both ac- and dc-motors (5,779)
05/1983
05/04/1983EP0078144A2 Speed control apparatus
05/03/1983US4381684 Energy efficient drive system
04/1983
04/27/1983EP0077455A1 Print head control system with controlled acceleration and deceleration
04/27/1983EP0077403A1 Speed detecting device
04/19/1983US4380723 Digital velocity servo
03/1983
03/31/1983WO1983001131A1 Control system for eddy current coupling drive for armoured face conveyors
03/22/1983US4377778 Sewing machine speed control system having quick response characteristic
03/22/1983US4377731 Device for automatically interrupting the supply of electric power to a motor and its utilization
02/1983
02/16/1983EP0071866A1 Apparatus for generating a voltage proportional to the direction and speed of rotation of a D.C. drive
02/16/1983EP0071848A1 Apparatus for generating a voltage corresponding to the direction and speed of rotation of a D.C. drive
02/15/1983US4374330 Control circuit for a part which is moved in an oscillating manner by an electric drive
02/15/1983US4373610 Speed control apparatus for elevator
01/1983
01/26/1983EP0070625A1 Multiple speed motor drive system
01/05/1983EP0068713A2 Sewing machine having a digital command circuit
01/05/1983EP0068237A1 Determination of the number of revolutions of electrical machines
01/04/1983US4367435 Motor control system
12/1982
12/28/1982US4366399 Frequency discrimination circuit
12/28/1982CA1138520A1 Printer escapement control system
12/23/1982WO1982004506A1 Control system for a motor driven machine
12/22/1982EP0067649A2 Sewing machine having a soft-starting circuit
12/15/1982EP0067072A2 Sewing machine having a memory for generating a speed control signal in response to operating conditions
12/14/1982US4364001 Circuit arrangement for energy economy
11/1982
11/25/1982WO1982004129A1 Speed detecting device
10/1982
10/28/1982WO1982003707A1 Method for attenuating oscillations of a rotating system
10/28/1982WO1982003692A1 Speed detecting device
10/27/1982EP0063426A2 Vending machine control and diagnostic apparatus
10/20/1982EP0062698A2 Evaluation circuit for a digital rotational speed transducer
10/19/1982US4355266 Eddy current servo system for controlling the rotation of disk packs
10/19/1982US4354577 Speed instruction generating device for elevator
09/1982
09/22/1982EP0060304A1 Industrial robbot unit having a current control function for a drive motor
09/07/1982CA1131301A1 Speed control circuit for phase-locked loop motor drive systems
08/1982
08/24/1982US4346434 Apparatus for controlling an electric motor
08/18/1982EP0058037A2 Apparatus for producing a constant rotational speed from a variable speed input
08/17/1982US4345189 Motor rotation speed control circuit
08/03/1982CA1128986A1 Digital servo anti-hunt circuit
07/1982
07/20/1982CA1128202A1 Tape control apparatus
07/06/1982US4338554 Automatic gain control apparatus for a motor servo system
07/06/1982CA1127295A1 Servo control apparatus
07/06/1982CA1127234A1 Motor speed control circuit
06/1982
06/24/1982WO1982002127A1 Motor control system
06/16/1982EP0053938A1 Speed setting arrangement for sewing machines
06/09/1982EP0053146A1 Device for cutting off automatically the electric power supply of a motor, and utilisation thereof.
06/08/1982US4334182 Motor control system
05/1982
05/11/1982US4329631 Wiper installation for motor vehicles
05/04/1982CA1123048A1 Apparatus for controlling the speed and direction of a dc motor
04/1982
04/20/1982US4326158 Method for attenuating oscillations of a rotating system
04/20/1982CA1122318A1 Web transport capstan control system
04/14/1982EP0049306A1 Control circuit
04/06/1982US4323832 System for controlling the speed of a magnetic tape transport motor
04/01/1982WO1982001104A1 Multiple windings electrical motors controllers
04/01/1982WO1982001090A1 Industrial robbot unit having a current control function function for a drive motor
02/1982
02/23/1982US4317072 Electric motor with rotational speed regulation
02/16/1982US4316130 Pneumatic device to control the speed of an electric motor
01/1982
01/19/1982US4311949 Semiconductor circuit for speed control of electric motors
12/1981
12/24/1981WO1981003715A1 Device for cutting off automatically the electric power supply of a motor,and utilisation thereof
12/22/1981US4307326 Drive system for a motor
12/22/1981US4307325 Digital control system for electric motors in power tools and the like
12/15/1981US4305353 Motor brake control system for controlling motor runaway
12/08/1981US4305025 Velocity servo with adaptive tachometer feedback
12/01/1981US4303869 Control circuit for electromagnetic apparatus
11/1981
11/17/1981US4301395 Phase-lock control device
11/10/1981US4300082 Speed-regulated positioning drive
11/03/1981US4298832 Digital motor speed controller
10/1981
10/27/1981EP0029846A4 Digital velocity servo.
10/20/1981US4296446 Motor speed control circuit
10/13/1981US4295171 System for controlling rotation of rotating structure
09/1981
09/23/1981EP0036334A1 Vehicle speed control
09/22/1981CA1109547A1 Mixer control system
09/15/1981US4290001 Closed loop, microcomputer controlled pulse width modulated inverter-induction machine drive system
09/15/1981US4289284 Tape control apparatus
08/1981
08/19/1981EP0034033A1 Electric motor drive control system
08/11/1981US4283666 Speed control device for a home sewing machine
08/11/1981US4283665 Method and apparatus for eliminating ripple component from motor control loop
07/1981
07/21/1981US4280082 Digital DC motor speed control circuit
07/14/1981US4278928 Electric generator arrangement
07/14/1981US4278924 Digital servo apparatus
07/14/1981US4278923 Apparatus for maintaining a rotating member at a constant speed
06/1981
06/30/1981US4276505 Microcomputer-based control apparatus for a load-commutated inverter synchronous machine drive system
06/10/1981EP0029846A1 Digital velocity servo.
06/09/1981US4272709 Circuit for controlling the drive of motor
06/02/1981US4271382 Speed control circuit for phase-locked loop motor drive systems
06/02/1981US4270868 Digital pulse-width modulated printer escapement control system
05/1981
05/26/1981US4269286 Speed control apparatus for elevator system
05/26/1981CA1101967A1 Control circuit for electromagnetic apparatus
05/12/1981US4267498 Drive equipment with two-phase synchronous motor
05/06/1981EP0028139A1 Sewing machine
05/06/1981EP0028138A1 Sewing machine
05/05/1981CA1100315A1 Glass fiber producing and collecting apparatus
04/1981
04/21/1981US4263627 Electronic tachometer
03/1981
03/31/1981US4259698 Speed and phase servo control apparatus
03/24/1981US4258299 Apparatus for controlling the speed and direction of rotation of a DC motor
03/24/1981CA1098194A1 Method and means for increasing the stiffness of limited frequency servo systems
02/1981
02/03/1981US4249236 Controller for power converter
02/03/1981US4249220 Capstan servo system in a recording and/or reproducing apparatus
01/1981
01/06/1981CA1092947A1 Woven fastener stringer
12/1980
12/30/1980US4242619 Digital servo control circuit
12/30/1980US4242618 Speed controller for rotary machine
12/30/1980US4241817 Drive mechanism for machines, having in particular a great moment of inertia
12/16/1980US4240014 Precision motor speed control system
12/11/1980WO1980002780A1 Digital velocity servo
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