| Patents for H02P 25 - Arrangements or methods for the control of ac-motors characterised by the kind of ac-motor or by structural details (7,591) |
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| 08/18/1993 | EP0555299A1 Synchronous motors |
| 08/17/1993 | US5237256 Electronic control for an automatic washing machine with a reversing PSC motor |
| 08/17/1993 | US5237255 Electric machine system |
| 08/10/1993 | US5235263 Method and apparatus for correcting hysteresis synchronous motor hunting |
| 08/05/1993 | WO1993015550A1 Reluctance motor and rotor of high-speed reluctance motor |
| 08/03/1993 | US5233280 Variable speed multi-phase motor powered via a converter |
| 07/27/1993 | US5231342 Stepping motor |
| 07/21/1993 | EP0551627A1 Motor speed control circuit |
| 07/20/1993 | US5229670 Linear motor device having vibration reduction unit |
| 07/14/1993 | EP0551053A1 Stopping device for an induction machine with capacitor |
| 07/13/1993 | US5227710 Multiple speed single phase motor |
| 07/06/1993 | US5225758 Apparatus for driving a variable reluctance motor |
| 06/30/1993 | EP0548812A2 Control unit for a vibratory conveyer |
| 06/30/1993 | CN1073651A Elevator controller |
| 06/29/1993 | US5223779 High efficiency switching circuit for transferring energy stored within a snubbing circuit to an electrical load |
| 06/24/1993 | DE4243394A1 Control system for electrically powered road vehicle - returns road and motor speed signals to determine optimum operating condition for drive via CVT transmission |
| 06/09/1993 | EP0545499A1 Digitally controllable ventilator having communication facilities,in particular for use in the agricultural sector |
| 06/09/1993 | EP0545087A1 Single-phase motor with a plurality of speeds |
| 06/09/1993 | EP0437575B1 A method and a device for sensorless control of a reluctance motor |
| 06/09/1993 | CN1021180C Method and apparatus for controlling ac current regulator of single-phase or polyphase |
| 06/08/1993 | US5218283 AC motor drive system with a two phase power supply |
| 06/02/1993 | EP0544576A1 Variable reluctance linear servomotor |
| 06/02/1993 | CN1021097C Method and arrangement for controlling single-phase or multiphase ac. current resglator |
| 05/26/1993 | EP0542955A1 Load-control circuit for a mains-powered asynchronous single-phase capacitor motor. |
| 05/25/1993 | US5214365 Three-phase reluctance type electric motor |
| 05/19/1993 | DE4137386A1 Circuit for contactless operating parameter changeover for electric tool - derives variable demand voltage from source by switching auxiliary resistance w.r.t. potential divider |
| 05/18/1993 | US5212435 Variable speed asynchronous induction motor |
| 05/13/1993 | WO1993009594A1 High speed motor |
| 05/06/1993 | DE4137393C1 Rpm regulator for hammer drill - has connections provided, for selective parallel connection of variable voltage divider |
| 05/05/1993 | EP0539401A1 Process and circuit for the sensor-less detection of the angle of rotation in a synchronous machine without a damper and preferably excited by a permanent magnet and powered via a converter. |
| 05/04/1993 | CA1317358C Speed control system |
| 04/28/1993 | EP0538556A1 Electromagnetic accelerator with coils in a flat configuration |
| 04/27/1993 | US5206839 Underwater sound source |
| 04/22/1993 | DE4137384C1 Fault warning circuitry for electric power tool - has sensor built into motor to detect wear of carbon@ brushes |
| 04/20/1993 | US5204606 From an AC power source to an induction motor |
| 04/20/1993 | US5204593 Drive system for information recording/reproducing apparatus |
| 04/14/1993 | EP0536113A1 Motor or position transducer. |
| 04/01/1993 | DE4229278A1 Control for linear sync. motor of traction vehicle - has position locator and CPU, memory and interface circuit predicting current value for drive power |
| 03/31/1993 | EP0534890A2 Starting multi-speedmotors at a low speed connection |
| 03/31/1993 | EP0534761A1 Control of switched reluctance machines |
| 03/24/1993 | EP0533413A1 Discrete position estimator for a switched reluctance machine using a flux-current map comparator |
| 03/23/1993 | US5196775 Switched reluctance motor position by resonant signal injection |
| 03/18/1993 | WO1993005568A1 Microprocessor control of electric motors |
| 03/18/1993 | WO1993005564A1 Improved apparatus for commutation of an electric motor |
| 03/18/1993 | WO1993005216A1 Improved motor-driven spindle assembly for ring spinning |
| 03/18/1993 | DE4130532A1 Squirrel cage induction motor speed control method - having triac-controlled AC supply with suppression of regular periods of waveform and phase gate control of half-waves |
| 03/17/1993 | EP0532350A1 Lock detector for switched reluctance machine rotor position estimator |
| 03/17/1993 | EP0510106A4 Improved motor controller having a control loop for neutralizing rotor leakage and magnetizing reactances |
| 03/16/1993 | US5194795 Drive system and a control unit therefor |
| 03/16/1993 | US5194788 Servo circuit |
| 03/14/1993 | CA2076108A1 Lock detector for switched reluctance machine rotor position estimator |
| 03/14/1993 | CA2076080A1 Discrete position estimator for a switched reluctance machine using a flux-current map comparator |
| 03/09/1993 | US5192887 Starting multi-speed motors at a low speed connection |
| 02/24/1993 | EP0528750A2 Shifted pole single phase variable reluctance motor |
| 02/24/1993 | EP0528046A1 High-speed motor |
| 02/23/1993 | US5189354 Angular position selecting apparatus |
| 02/10/1993 | EP0526660A1 Apparatus for controlling load numerically |
| 02/09/1993 | CA1313557C Pump control system for instantly reversing the drive motor |
| 02/04/1993 | WO1993002502A1 Electric machine system |
| 02/03/1993 | EP0525466A2 Converter fed a controllable multi-phase motor |
| 02/02/1993 | US5184056 Method of regulating the torque response of a multiphase electronically commutated electric motor |
| 01/28/1993 | DE4207292A1 Variable drive document shredder - has multipole electric motor with reaction controlled selection of pole pattern for torque regulation |
| 01/27/1993 | EP0524318A1 High-speed reluctance-type electric motor |
| 01/19/1993 | US5180960 Circuit arrangement for commutating a reluctance motor |
| 01/19/1993 | US5180954 Method and apparatus for controlling a sewing machine |
| 01/13/1993 | EP0522657A1 Control circuit for a direct current/three-phase current converter |
| 01/10/1993 | CA2073469A1 Control circuit for a direct current/three-phase current converter |
| 01/07/1993 | DE4122393A1 Compensating pendulum movement for sync. motor - regulating motor current via reference system attached to rotor |
| 01/05/1993 | US5177423 Winding arrangement in an AC motor |
| 12/23/1992 | EP0246326B1 Method and apparatus for controlling torque of a servo motor |
| 12/22/1992 | US5173650 Method and a device for sensorless control of a reluctance motor |
| 12/22/1992 | US5173647 Servo positioning circuit |
| 12/22/1992 | US5173646 Vacuum cleaner control circuit |
| 12/15/1992 | US5172160 Optical lithographic device having a machine frame with force compensation |
| 12/10/1992 | WO1992022127A1 Power supply device for reluctance stepper motor, and motor fitted with such device |
| 12/10/1992 | WO1992021866A1 Fan installation |
| 12/10/1992 | DE4217303A1 Luefteraggregat Luefteraggregat |
| 12/08/1992 | WO1992022126A1 Load-control circuit for a mains-powered asynchronous single-phase capacitor motor |
| 12/01/1992 | US5168203 Constant current reluctance motor drive systems |
| 12/01/1992 | US5168202 Microprocessor control of electric motors |
| 12/01/1992 | US5168172 Control system for a washing machine |
| 11/26/1992 | WO1992021176A1 Device for controlling current application to inductance coil |
| 11/26/1992 | DE4215552A1 Compact drive unit for automatic washing machines - features asynchronous motor with two stator phases, each with bifilar coil made of two parts |
| 11/26/1992 | DE4215551A1 Drive unit for automatic washing machines - with asynchronous motor with two stator phases, one with AC coil for low speed range |
| 11/24/1992 | US5166591 Control for a bridge inverter |
| 11/17/1992 | US5164644 Apparatus for controlling a ceiling fan |
| 11/17/1992 | US5163546 Ac magnetic floating conveyor and operation method thereof |
| 11/12/1992 | WO1992020142A1 Process for operating permanently excited single-phase alternating current machines |
| 11/11/1992 | EP0512121A1 Current controller for inductive load |
| 11/10/1992 | US5161361 Motor-driven spindle assembly for ring spinning |
| 11/04/1992 | EP0511398A1 Reluctance type motor |
| 10/29/1992 | WO1992019038A1 Process and circuits for determining machine-related electromagnetic and mechanical state variables on electrodynamic induction machines supplied via converters |
| 10/28/1992 | EP0510106A1 Improved motor controller having a control loop for neutralizing rotor leakage and magnetizing reactances |
| 10/27/1992 | US5159657 Method and apparatus for controlling single or polyphase a.c. power controllers |
| 10/27/1992 | US5159255 Energy conserving electric induction motor field control method and apparatus |
| 10/21/1992 | EP0455632A4 Linear motor propulsion system |
| 10/14/1992 | EP0507835A1 A method and an arrangement for starting an electrical machine having varying reluctance. |
| 10/14/1992 | EP0360854B1 Two-state, bilateral, single-pole, double-throw, half-bridge power-switching apparatus and power supply means for such electronic power switching apparatus |
| 10/14/1992 | EP0273052B1 Device for detecting the rotational position of rotor of motor |
| 10/13/1992 | US5155399 Coil assembly for an electromechanical actuator |