Patents for H02P 29 - Arrangements for regulating or controlling electric motors, appropriate for both ac- and dc-motors (5,779) |
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07/26/1995 | EP0357778B1 Method of speed control for servomotor |
07/25/1995 | US5435729 Motor control loading system |
07/11/1995 | US5432422 Method and apparatus for controlling the positioning and reducing vibration in a machine tool system |
07/11/1995 | US5431502 Carriage motor controller for printer |
07/06/1995 | DE4418118C1 Servo steering control for automobile |
07/05/1995 | EP0661231A1 Apparatus for adjusting brake force for passenger conveyor emergency brake |
07/05/1995 | EP0660972A1 Process and device for electronically monitoring the overload on electric motor drives. |
06/29/1995 | WO1995017780A1 Method and apparatus for transducerless flux, position and velocity estimation in drives for ac machines |
06/27/1995 | US5428285 Position controller for controlling an electric motor |
06/21/1995 | EP0658970A1 Motor vibration control device and method for matching a motor speed detected value with a motor speed reference value |
06/21/1995 | EP0658289A1 Process and device for driving a multiplicity of loads |
05/30/1995 | US5420490 Apparatus and method for compensating for warm-up drift in a servo motor |
05/23/1995 | US5418440 Position control device for servomotor |
05/17/1995 | EP0653832A2 Method and device for controlling speed of a washing machine motor |
05/11/1995 | DE4412413C1 Device for optimisation of the rotation speed control behaviour of a miniature electric motor for dentistry purposes |
05/10/1995 | EP0652499A1 Motorised setting device for machines |
04/26/1995 | EP0650253A1 Speed control observer applied to speed control system for motor |
04/25/1995 | US5410582 Reference-signal generating apparatus |
04/25/1995 | US5410234 Motor drive control apparatus |
04/13/1995 | WO1995010135A1 Electric motor with torque detecting means |
04/06/1995 | WO1995009479A1 Robot control apparatus for monitoring robot load |
04/04/1995 | US5404418 Closed-loop feedback control system having an adaptive filter |
03/22/1995 | EP0644648A1 Control method and apparatus and malefunction detection method and apparatus for AC motor |
03/21/1995 | US5399959 Circuit arrangement for contactless switchover of operation parameters of an electrically driven tool |
03/16/1995 | WO1995007572A1 Device for operating a power consumer in a vehicle |
03/16/1995 | DE4330537A1 Frequenzumrichter und Verfahren zu seinem Betrieb Frequency and method for its operation |
03/07/1995 | US5396413 Method of controlling amenity products or rotating machines |
02/23/1995 | WO1995005703A1 Apparatus and method for controlling a servomotor |
02/22/1995 | EP0639888A1 Method of detecting and regulating load on servomotor |
02/21/1995 | US5392378 Speed controlling system and a predictor |
02/21/1995 | US5391969 Motor servo system |
02/14/1995 | US5389868 Drive control apparatus for driven machine and parameter display method in drive control apparatus for driven machine |
01/17/1995 | US5383066 Compensation for the dropout of a drum frequency generator signal in a drum servo system |
12/07/1994 | CN1026937C System and method for controlling speed of electric motor in extremely low speed range using rotary pulse encoder |
12/07/1994 | CN1026936C Method and apparatus for controlling the speed of a motor |
12/06/1994 | US5371452 Adjustable time constant control and method system for a servomotor |
11/30/1994 | EP0626752A2 A method of controlling a printhead carriage velocity or a serial printer |
11/29/1994 | US5369349 Electric motor control system |
11/24/1994 | WO1994027360A1 Method for controlling current for synchronous motor |
11/22/1994 | US5367241 Rotation speed detecting apparatus for a motor having an encoder |
11/10/1994 | WO1994025910A1 Method for controlling servomotor |
11/08/1994 | US5363359 Method and apparatus for generating velocity error signals |
10/27/1994 | WO1994024621A1 Method of force control by disturbance load estimation |
10/26/1994 | EP0396749B1 System for controlling servo motor |
10/12/1994 | CN1093507A Method and apparatus for controlling single phase induction motor |
10/04/1994 | US5353174 Motor speed sensing system for magnetic disk apparatus or the like |
09/29/1994 | DE4410062A1 Drive control device and method for controlling a driven device |
09/21/1994 | EP0616417A1 Method for control of ac motor |
09/14/1994 | EP0615339A1 Digital servo system |
09/13/1994 | US5347214 Method and device for setting the short circuit moment in electric motors, particularly in servomotors |
08/30/1994 | US5343134 Method for checking brake torque |
08/24/1994 | EP0292573B1 Speed controller |
08/18/1994 | WO1994018751A1 Method of detecting and regulating load on servomotor |
08/16/1994 | US5337878 Assembly and method for adjusting brake force for passenger conveyor emergency brake |
08/10/1994 | EP0502875B1 Safety system for a stepper-motor drive |
08/03/1994 | EP0608830A1 Motor control device |
07/26/1994 | US5332956 Motor rotation controlling device |
07/19/1994 | US5331267 Method for determining motor speed of an induction motor for a hoist |
07/12/1994 | US5329560 AGC circuit with non-linear gain for use in PLL circuit |
06/21/1994 | US5323436 Apparatus of and method for counting a number of revolutions of a servo motor |
06/21/1994 | US5323287 Protective device for electric motors |
06/21/1994 | US5323096 Servomotor control device using servomotor rotation speed extrapolation |
06/15/1994 | EP0601432A2 Method and system for estimating inertia of 2-mass system during speed control |
06/15/1994 | CN1025065C Operation control circuit for pump motor |
06/14/1994 | US5321643 Digital comb filter |
06/14/1994 | US5320501 Electric motor driven hydraulic apparatus with an integrated pump |
06/01/1994 | EP0599020A1 Method and apparatus for controlling the positioning and reducing vibration in a machine tool system |
05/04/1994 | CN1024428C Operation control circuit for pump motor |
05/03/1994 | US5308965 Display device for an industrial console module |
05/03/1994 | CA1329258C Servo for a rotary head drum of vtr |
04/26/1994 | US5306993 System of driving by electric motor machines which work in a periodic manner at torque variable as a function of the angle of rotation |
04/26/1994 | US5306990 Electric motor control apparatus including an output stage protected against malfunction and damage |
04/19/1994 | US5304908 Quantizing error removing circuit for a rotational control device |
04/19/1994 | US5304905 Motor servo-system controller having comparison of detected current with model current integrations |
04/14/1994 | WO1994008389A1 Method for control of ac motor |
04/13/1994 | EP0591482A1 Arrangement for the transfer of control commands in an apparatus or a machine operated from the mains. |
04/12/1994 | US5303278 Circuit for compensating waveform shaping error |
04/05/1994 | US5301131 Apparatus and method for controlling the rotational speed of a motor |
03/31/1994 | WO1994007289A1 Process and device for electronically monitoring the overload on electric motor drives |
03/31/1994 | DE4333146A1 Regulating speed of electric motor - using sensitivity function and complementary sensitivity function each multiplied by frequency weighting function |
03/29/1994 | US5298842 Thermal protection for locomotive main traction alternators |
03/23/1994 | EP0588005A1 Pilot light interface for small industrial controls |
03/22/1994 | US5296789 Apparatus for controlling brushless motors in response to switching transistor temperature |
03/22/1994 | CA1328006C Cyclic electromechanical program control for controlling elements, such as for example openable roofs of vehicles |
03/17/1994 | WO1994006203A1 Servo waveform display system |
03/17/1994 | WO1994006188A1 Temperature monitoring process and device |
03/17/1994 | DE4230873A1 Verfahren und Vorrichtung zur elektronischen Überlastüberwachung an elektromotorischen Antrieben Method and apparatus for electronic overload monitoring of electric motor drives |
03/15/1994 | US5294871 Electric motor control system |
03/10/1994 | DE4229344A1 Verfahren und Vorrichtung zur Temperaturüberwachung Method and apparatus for temperature monitoring |
03/09/1994 | EP0585581A2 Carriage motor controller for printer |
03/08/1994 | US5293445 AGC with non-linear gain for PLL circuits |
03/02/1994 | EP0292575B1 Servo motor controller |
03/02/1994 | EP0292574B1 Numerical controller |
02/23/1994 | EP0583476A1 Adaptive sliding mode control method for control object including spring system |
02/22/1994 | US5289517 Digital pulse processing device |
01/19/1994 | EP0379573B1 Resistance compensation in a motor using a thermally variable resistive network |
01/12/1994 | EP0578475A2 Motor control apparatus |
01/12/1994 | EP0577839A1 Servo control method |
12/22/1993 | EP0407590B1 Servo control apparatus |
12/21/1993 | US5272423 Velocity control method for a synchronous AC servo motor |