| Patents for H02P 23 - Arrangements or methods for the control of ac-motors characterised by a control method other than vector control (5,487) |
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| 07/13/1995 | WO1995019065A1 Device and method for controlling motor |
| 07/11/1995 | US5432766 Disc reproducing apparatus |
| 07/11/1995 | US5432421 Process for detecting the position, direction of movement and dynamic characteristic values of remote-controlled displacement of an adjustable object |
| 07/05/1995 | EP0661789A2 Phase sequence wiring protection apparatus |
| 07/05/1995 | EP0364589B1 Device for switching connection of a three-phase induction motor |
| 06/29/1995 | DE4440449A1 Idling and stoppage control of drives for roller blinds etc and also film screen |
| 06/21/1995 | EP0658972A1 Power supply control system for asynchronous 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 | EP0617807B1 Process and arrangement for reducing vibrations caused by jolts in drives having mechanical arrangements capable of vibrating |
| 05/30/1995 | US5420960 Motor control system |
| 05/30/1995 | US5420491 Method for dissipating power regenerated from an induction motor |
| 05/30/1995 | US5420487 Device for receiving/transferring parallel signals |
| 05/24/1995 | EP0241563B2 Speed control system |
| 05/24/1995 | CN1102925A Comb filter, rotation control apparatus employing the comb filter and method of perporming filtering operation utilizing the comb filter |
| 05/17/1995 | EP0653832A2 Method and device for controlling speed of a washing machine motor |
| 05/09/1995 | US5414334 Control device for an asynchronous roller-blind motor |
| 05/02/1995 | US5412302 Rotary body drive control apparatus capable of compensating for variations of transfer characteristics |
| 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 | US5410228 Method and apparatus for suppressing torsional vibration in an electric motor speed control system |
| 04/19/1995 | EP0362399B1 Motor output change-over control unit |
| 04/12/1995 | EP0493464B1 Drive systems for transportation mechanisms |
| 04/11/1995 | US5406186 One switch multi-phase modulator |
| 04/06/1995 | DE4401064C1 Circuit arrangement for modulation, demodulation, coordinate transformation or angle measurement |
| 04/05/1995 | EP0646902A2 Device for receiving and transferring a plurality of parallel signals |
| 04/05/1995 | CN1101179A Motor speed control apparatus |
| 04/04/1995 | US5404418 Closed-loop feedback control system having an adaptive filter |
| 03/09/1995 | WO1995006974A1 Variable speed motor controller |
| 03/09/1995 | CA2170632A1 Variable speed motor controller |
| 03/07/1995 | US5396413 Method of controlling amenity products or rotating machines |
| 03/02/1995 | WO1995006353A1 Circuit for speed control for a one-phase or three-phase motor |
| 03/02/1995 | CA2169836A1 Circuit for speed control for a one-phase or three-phase motor |
| 03/01/1995 | CN1099471A 空调机 Air conditioners |
| 02/23/1995 | WO1995005703A1 Apparatus and method for controlling a servomotor |
| 02/22/1995 | EP0639888A1 Method of detecting and regulating load on servomotor |
| 02/22/1995 | EP0308517B1 Vaccum cleaner |
| 02/21/1995 | US5391969 Motor servo system |
| 02/16/1995 | DE4427697A1 Control device for a variable rotation speed motor |
| 02/15/1995 | EP0638988A2 Self-tuning-tracking controller for permanent-magnet synchronous motors |
| 02/15/1995 | EP0638981A1 Motor current status sensor |
| 02/14/1995 | US5389869 Power control system for an A.C. induction motor |
| 02/14/1995 | US5389868 Drive control apparatus for driven machine and parameter display method in drive control apparatus for driven machine |
| 02/13/1995 | CA2129499A1 Motor current status sensor |
| 02/12/1995 | CA2129761A1 Self-tuning tracking controller for permanent-magnet synchronous motors |
| 02/07/1995 | US5388052 Method of operating an induction motor |
| 02/07/1995 | US5387856 Speed control arrangements for electric motors |
| 01/26/1995 | WO1995002920A1 Efficient control system for electric motors |
| 01/26/1995 | DE4425547A1 Frequency regulating method for an invertor, and a device for this purpose |
| 01/26/1995 | DE4324306A1 Method and circuit arrangement for operating a convertor motor which is excited by a rotating field |
| 01/26/1995 | CA2166862A1 Efficient control system for electric motors |
| 01/05/1995 | WO1995001003A1 Induction motor controller |
| 12/27/1994 | US5377295 Speed controller of motor |
| 12/21/1994 | EP0629319A1 Apparatus for correcting hysteresis synchronous motor hunting |
| 12/21/1994 | CN1096569A 压缩机 Compressor |
| 12/20/1994 | US5375186 Device for speed stabilization of a motor employing phase comparison |
| 12/14/1994 | EP0629038A2 AC motor control |
| 12/07/1994 | EP0627135A1 Controlling device for electric motors |
| 12/07/1994 | CN1026936C Method and apparatus for controlling the speed of a motor |
| 12/06/1994 | US5371448 Motor control circuit with continuous phase control |
| 12/01/1994 | DE4316365A1 Control method and control circuit for a frequency converter for starting, rotation-speed adjustment, braking and positioning of three-phase asynchronous motors |
| 11/30/1994 | EP0626752A2 A method of controlling a printhead carriage velocity or a serial printer |
| 11/24/1994 | DE4316783A1 Method and measuring instrument for determining the slip frequency of asynchronous motors |
| 11/22/1994 | US5367241 Rotation speed detecting apparatus for a motor having an encoder |
| 11/17/1994 | DE4018421A1 Stepping motor control e.g. for matrix printer - has programmed microprocessor controlling individual modulation of stepping motor phases |
| 11/02/1994 | CN1026442C Method and apparatus for controlling of reciprocation of movable mirro of interferential light seperating photometer |
| 10/27/1994 | DE4312987A1 Method and circuit for monitoring asynchronous motors which are operated from a single-phase alternating-current mains system |
| 10/26/1994 | EP0621678A1 Overvoltage protection circuit |
| 10/26/1994 | EP0396749B1 System for controlling servo motor |
| 10/25/1994 | CA1332756C Digital servo system using microcomputer for controlling phase and speed of rotary body |
| 10/11/1994 | US5355070 For a polyphase electric motor |
| 10/04/1994 | US5352964 Controlling method and apparatus for actuating induction motor |
| 09/29/1994 | WO1994022213A1 A method for determining a stator flux estimate for an asynchronous machine |
| 09/29/1994 | DE4410062A1 Drive control device and method for controlling a driven device |
| 09/29/1994 | DE4409448A1 Integrierte Elektromotor-Hydropumpeneinheit mit Motordrehrichtungserkennung Integrated electric motor hydraulic pump unit with motor rotation direction detection |
| 09/29/1994 | DE4310043A1 Circuit arrangement for controlling or regulating the starting (acceleration), braking and rotation speed of a three-phase asynchronous motor |
| 09/28/1994 | CN1092915A Single phase AC motor speed control system |
| 09/21/1994 | EP0616417A1 Method for control of ac motor |
| 09/20/1994 | US5349278 For use with a power source |
| 09/14/1994 | EP0615336A1 High-efficiency power supply control apparatus for variable-speed induction motor |
| 09/13/1994 | US5347203 Control system, especially for film and video tape transport |
| 09/09/1994 | CA2118550A1 High-efficiency power supply control apparatus for variable-speed induction motor |
| 09/06/1994 | US5345532 Recording apparatus |
| 09/06/1994 | US5345158 Electrical distribution equipment with torque estimating capability |
| 08/24/1994 | EP0292573B1 Speed controller |
| 08/23/1994 | US5340282 Drive system for a water pump with rotatable sealing arrangement |
| 08/18/1994 | WO1994018751A1 Method of detecting and regulating load on servomotor |
| 08/17/1994 | EP0610671A1 Method of driving for automatic machines and device for the application of the said method |
| 08/02/1994 | US5335189 Rotation phase control device |
| 08/02/1994 | US5334924 Induction motor control system |
| 07/26/1994 | US5332956 Motor rotation controlling device |
| 07/20/1994 | EP0606501A1 Power regeneration system |
| 07/19/1994 | US5331267 Method for determining motor speed of an induction motor for a hoist |
| 07/13/1994 | EP0605788A2 Single phase AC motor speed control system |
| 07/13/1994 | EP0605604A1 Automatic motor testing method and apparatus |
| 07/06/1994 | EP0605050A2 Machine motion controller employing adaptive kinematic model |
| 07/06/1994 | EP0604663A1 Method for estimating inertia and disturbance torque, and method for detecting abnormal load |
| 06/28/1994 | US5325460 System and method for controlling the speed of an electric motor in an extremely low speed range using a rotary pulse encoder |
| 06/28/1994 | US5325036 Elevator speed sensorless variable voltage variable frequency induction motor drive |
| 06/23/1994 | WO1994014236A1 Power control system for an a.c. induction motor |
| 06/23/1994 | WO1994014234A1 Method and apparatus for determining constants of functions expressing characteristics of controlled system |