Patents for H02P 29 - Arrangements for regulating or controlling electric motors, appropriate for both ac- and dc-motors (5,779)
10/1987
10/27/1987US4703241 Motor servo system
10/21/1987CN87103189A Control arrangement for turning induction motor
10/20/1987CA1228412A1 Procedure for determining the operating status of an actuating drive of a printing machine and device for implementing the procedure
10/14/1987EP0241045A1 Motion control apparatus for induction motor
10/14/1987EP0240678A2 Rotational velocity control with pulse width modulation
10/13/1987US4700189 Linear resolver
10/13/1987US4699097 Means for suppressing engine output torque fluctuations
09/1987
09/24/1987DE3608888A1 Control arrangement for an auxiliary unit which is allocated to a main machine which is constructed as an alternating-current machine
09/23/1987EP0237717A2 Speed control of an electrical motor
09/22/1987US4695780 Servomotor velocity control system
09/22/1987US4695778 Rotation phase control device
09/22/1987US4695776 Power converter for an electrically-compensated constant speed drive
09/15/1987US4694234 For detecting a pulse width of a pulse signal
09/08/1987US4692671 Electrically-compensated constant speed drive
08/1987
08/27/1987WO1987005167A1 Method of controlling servo motor
08/05/1987EP0230470A1 System for switching and controlling unit amount of torque limit value of servo motor for injection molding machine
07/1987
07/29/1987EP0166744A4 A programmed microprocessor for a speed control system for a d.c. motor.
07/16/1987WO1987004276A1 Motor system
07/14/1987US4680746 Recording disc rotary drive control apparatus
07/14/1987US4680518 Servomotor velocity control method
07/14/1987US4680516 Motor speed control system
07/07/1987US4678182 Bicycle ergometer and eddy current brake therefor
07/02/1987WO1987003928A1 Power converter for an electrically-compensated constant speed drive
07/01/1987EP0227014A1 Turbine helper drive apparatus
06/1987
06/09/1987US4672595 System for controlling rotary drive of recorded disk player
06/04/1987WO1987003432A1 Speed control system
06/03/1987CN86107916A Printer-driving motor and its control device
05/1987
05/27/1987EP0223102A2 Control circuit for an electric printing machine drive motor or the like
05/27/1987EP0223100A2 Control device for an electric printing machine drive motor
05/27/1987CN86107921A Control circuit for electric printing machine drive motor or similar device
05/26/1987CA1222298A1 Reactance-commutated high resolution servo motor system
05/20/1987EP0222423A1 System for controlling the speed of an electric motor
05/12/1987US4664247 Conveyor brake control
05/12/1987CA1221764A1 System for the reproduction of signals stored on a magnetic tape
04/1987
04/22/1987EP0219290A2 Torque control apparatus for rotary machine
04/22/1987EP0219239A1 Speed control unit for an aircraft electric generator
04/14/1987US4658191 Motor rotation control apparatus
04/07/1987US4656401 Load drive apparatus
03/1987
03/31/1987US4654776 Cut-off amplifier
03/31/1987CA1219901A1 Servomotor speed control in a positioning device
03/24/1987US4653077 Timing device for neutralizing response delays of control devices in printing machines
03/18/1987EP0214309A1 System for controlling a servo motor
03/10/1987US4649328 Method for automatic speed loop tune-up in a machine drive
03/10/1987US4648551 Adaptive blower motor controller
03/10/1987US4648339 Speed control apparatus for sewing machine
03/04/1987EP0212566A1 Phase locked loop motor controller
03/04/1987EP0147393B1 Automatic hydraulic speed control
03/03/1987US4647828 Servo system
02/1987
02/25/1987EP0211011A1 Circuit for regulating the rotational speed of a series motor.
02/24/1987US4645048 Drive mechanism for machines
02/17/1987CA1218133A1 Automatic hydraulic speed control
01/1987
01/27/1987US4639649 Motor control device
01/27/1987CA1217229A1 Motor control system
01/21/1987EP0208788A1 Speed control system for servo motors
01/15/1987WO1987000363A1 Control circuit for an electric motor
01/13/1987US4636961 Control device for a hand-operated electric power tool
01/13/1987US4636700 Position servo system
01/13/1987US4636696 Servo system
01/13/1987US4635441 Power drive unit and control system therefor
01/07/1987EP0207172A1 Drive control system for servo motors
01/07/1987EP0207168A1 Drive control system for servo motors
12/1986
12/23/1986US4631462 System for controlling the speed of an electric motor
12/17/1986EP0204903A1 Servo control of a motor speed by using a phase locked loop
12/10/1986EP0204164A2 Method for limiting the rotational speed of the driving motor of a rotary offset printing machine
12/03/1986EP0203550A1 Adaptive electrical control system
12/03/1986EP0203199A1 Injection molding machine which uses a servo motor and which is provided with a protecting function
12/03/1986CN86103238A Method for restricting rotating speed of drived motor of offset printer
12/02/1986US4626753 Motor speed control by measurement of motor temperature
11/1986
11/20/1986EP0201605A1 System for controlling the speed of a servo motor
11/18/1986US4623939 Rotation control apparatus for a motor
11/06/1986WO1986006319A1 System for switching and controlling unit amount of torque limit value of servo motor for injection molding machine
11/05/1986EP0200314A2 Electric motor control system
10/1986
10/29/1986EP0113735B1 Method and device for controlling the rotation speed of a pump driving asynchronous motor
09/1986
09/23/1986US4613760 Alternating current electrical power generating system
09/12/1986WO1986005335A1 System for controlling a servo motor
09/10/1986EP0194099A2 Intermittent drive type magnetic recording apparatus
08/1986
08/27/1986EP0191947A1 An apparatus for compensating a quantization error
08/12/1986US4605901 For a motor speed control system
08/12/1986US4605885 Method of controlling rotation speed of motor
08/12/1986US4605884 Control unit
08/05/1986US4604558 Motor drive assembly having a floating switch actuator
08/05/1986US4604036 Torque control apparatus for enclosed compressors
07/1986
07/31/1986WO1986004468A1 Circuit for regulating the rotational speed of a series motor
07/29/1986US4603286 For a servo motor
07/29/1986US4602581 Sewing machine controlling apparatus
07/29/1986CA1208695A1 Servomotor feedback fault detector
07/22/1986US4601568 Document-scanning control apparatus for image-forming apparatus
07/17/1986WO1986004194A1 Speed control system for servo motors
07/17/1986WO1986004193A1 Drive control system for servo motors
07/15/1986US4600866 Motor revolution speed control device
07/08/1986US4599545 Servomotor controller
07/08/1986CA1207379A1 Induction motor controller
07/03/1986WO1986003854A1 Drive control system for servo motors
06/1986
06/25/1986EP0185594A1 Friction and eddy current compound clutch and method of controlling it
06/25/1986EP0185579A1 Method for displacing a mobile system moved by an electric motor along a given trajectory
06/11/1986EP0184500A1 Method for displacing a mobile system moved by an electric motor along a given trajectory, and apparatus for carrying out said method
06/10/1986US4594536 Servomotor speed control in a positioning device
06/10/1986US4593524 Control device for a power-driven air pump for a car
06/03/1986CA1205397A1 Multiple speed drive system
05/1986
05/27/1986US4591768 Control system for an electric motor
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