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 5 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
Patents for H02P 5 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors (4,788)
01/1990
01/10/1990EP0350447A1 Warp tension control process and loom with a warp-tensioning device
01/10/1990EP0350446A1 Terry fabric making process and loom with pile-forming devices
01/10/1990EP0349831A1 Synchronisable propulsion system
01/03/1990CN1006350B High-precision auromatic numerical control device
01/02/1990US4891566 Method for speed regulation and switch arrangement for performing the method
12/1989
12/27/1989EP0347705A1 Drive device for a portal traveller
12/27/1989CN1006265B Method of stepless speed control of a.c. motor and the motors
12/14/1989WO1989012349A1 Motor controller
12/13/1989EP0345785A2 Variable keyed power distribution and control system for motorized wheelchair
12/06/1989CN2049048U Rotary speed monitor
11/1989
11/29/1989EP0183687B1 Electric rotating apparatus
11/07/1989US4879475 Device and method for maintaining a voltage level in a control circuit
10/1989
10/18/1989EP0337241A2 Device for driving draw rolls of a web-fed printing press
09/1989
09/26/1989CA1261086A1 Mine hoist control method and apparatus
09/21/1989DE3906646A1 Multiple drive on printing machines
08/1989
08/30/1989CN1035179A Core monitor that uses rotor shaft voltage
08/29/1989CA1258880A1 Microprocessor controlled d.c. motor for controlling print value selection means
08/24/1989DE3804634A1 Highly dynamic electrical servo drive with a plurality of asynchronous machines
08/15/1989CA1258484A1 Control system
08/08/1989US4855661 Motion control apparatus for induction motor
08/03/1989DE3801931A1 Method and circuit for operating a shearer loader hauled by roadway winches
07/1989
07/25/1989US4851754 Velocity control system
07/18/1989CA1257645A2 Method of detecting kickback condition in a motor driven tool
07/05/1989CN2040680U Electromagnetic speed adjusting electric machinery controller
06/1989
06/28/1989EP0321920A2 Centrifuge control system having dual processors
06/06/1989US4837491 Motor velocity control apparatus
05/1989
05/24/1989EP0316814A2 Method of and apparatus for preventing scanning line deviation in a process scanner of a separated drum type
05/23/1989CA1254635A1 Switching control apparatus for vending machine alternating current device switching
05/17/1989EP0316028A1 Method for regulating the supply of weft thread on weaving machines, and a device which uses this method
05/16/1989US4831317 Method for controlling a servomotor
05/10/1989EP0315210A1 Computerized electrical vehicle
05/02/1989US4827195 Motor control system for directing multiple devices
04/1989
04/18/1989US4822185 Driving method of a printing apparatus employing a non-stabilized power source
04/12/1989CN1032412A Device for remote transmission of angular position and force between master and actuating shafts
04/11/1989US4821168 Control system with improved robustness to disturbances
03/1989
03/28/1989US4816734 Speed control system
03/23/1989DE3729911A1 Synchronism control of processing stations
02/1989
02/22/1989CN2033170U Stepless speed regulating device for stage hanger rod
01/1989
01/19/1989DE3822358A1 Drive method for rollers of a winding machine
01/10/1989US4797600 Magnetic drive control system for a multiple cooling fan installation
11/1988
11/30/1988EP0293296A1 Device for the synchronous drive of a plurality of ropes in a transport installation, and process for the automatic regulation of the synchronous drive of the ropes
11/22/1988US4785927 Vending machine control with product delivery motor home detection, motor speed control and power supply
11/17/1988DE3715468A1 Circuit arrangement for the adaptive rotation-speed correction regulation of driven strip guidance and/or speed measurement rollers in the case of production and further-processing rolling arrangements for strip material
11/15/1988US4785213 Variable speed controlled induction motor
11/01/1988US4782271 Electronic motor control circuit
10/1988
10/25/1988US4780650 Control system for a power converter for driving induction motors
10/25/1988CA1243756A1 Series connected series motors for independent loads
10/18/1988US4779032 Drive device
09/1988
09/27/1988US4774441 Motor control system
09/27/1988CA1242511A1 Propeller synchrophaser and mode logic
09/15/1988DE3707336A1 Arrangement for supplying at least one AC or DC motor
09/07/1988WO1988006772A1 Low cost motor home detection, motor speed control and power supply for vending machine control systems
09/07/1988EP0281389A2 Vending machine control with improved product delivery motor home detection, motor speed control and power supply
08/1988
08/23/1988US4766356 Device for opening and closing a vehicle top
08/02/1988US4761589 Mine hoist control method and apparatus
08/02/1988CA1239983A1 Microprocessor controlled d.c. motor for controlling printing means
08/02/1988CA1239982A1 Microprocessor controlled d.c. motor for controlling a postage meter
08/02/1988CA1239981A1 Drive system for a.c. voltage motors
07/1988
07/26/1988US4760314 Rotation controller for a differential actuator
07/05/1988US4755700 Variable speed AC motor
07/05/1988US4755070 Circuit for actuating electric motors, especially in an electronic typewriter
05/1988
05/10/1988US4743814 Static power conversion for adding DC motors
04/1988
04/26/1988US4740732 Adaptive rewind for tape drive
04/26/1988US4739950 Constant velocity tape drive system
04/13/1988CN87106461A High-precision automatic numerical control device
04/05/1988US4736140 Control device for a controlled and variable speed motor by means of a stepping motor
03/1988
03/30/1988EP0261276A1 Myoelectrically controlled artificial hand
03/24/1988DE3641569C1 Circuit arrangement for spinning or twisting machines
03/23/1988CN87202399U Ac stepless speed regulating motor
03/22/1988US4733144 Electronic digitized proportional-integral controller
03/15/1988US4731568 Error signal generator
03/09/1988EP0258615A2 Adaptive rewind for tape drive
03/02/1988EP0257562A2 Lifting device for a rotor, particularly for the head wheel arrangement of a recorder
02/1988
02/24/1988EP0256141A1 Method of controlling servo motor
02/09/1988US4723980 Drive system for a glass container production line
01/1988
01/14/1988DE3621495A1 Device for synchronising two movements
12/1987
12/16/1987CN87104033A Variable speed controlled induction motor
12/09/1987EP0248595A2 Variable speed controlled induction motor
12/08/1987US4712052 Digital servo-control system
12/02/1987EP0247416A1 Synchronization and brake control
12/02/1987EP0247206A1 Speed control system
11/1987
11/17/1987US4706479 Tandem rolling control system
11/04/1987EP0244034A1 System for speed control of anglesynchronous drive of a plurality of axes
10/1987
10/21/1987EP0241563A1 Speed control system
10/21/1987EP0241534A1 Switching control apparatus for vending machine alternating current device switching
10/21/1987CN87103189A Control arrangement for turning induction motor
10/14/1987EP0241045A1 Motion control apparatus for induction motor
10/07/1987EP0239655A1 Electronic proportional-integral-controller in digital execution
10/06/1987US4698565 Hoist with overload safety protection
09/1987
09/24/1987DE3609103A1 Two-column, floor-mounted lifting platform
09/22/1987US4695780 Servomotor velocity control system
09/15/1987US4694227 Current sharing circuit
08/1987
08/27/1987WO1987005167A1 Method of controlling servo motor
08/25/1987US4689527 Double driving device for machines
08/11/1987US4685925 Voluntary opening prehension device
08/04/1987US4684854 Method and apparatus for adding additional D.C. motors and control thereof
07/1987
07/14/1987US4680525 Induction motor driving system
07/08/1987EP0227974A2 A device for opening and closing a vehicle top
07/01/1987EP0226838A2 Cable traction drive for an aerial cableway system
06/1987
06/04/1987WO1987003432A1 Speed control system
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