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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01/17/1996 | EP0692862A2 Power supply to a stator of a polyphase reluctance machine |
01/17/1996 | CN1115134A Motor control |
01/16/1996 | US5485072 Process for operating permanently excited single-phase alternating current machines |
01/16/1996 | US5485047 Reluctance-type motor and a rotor for a reluctance-type high-speed motor |
01/16/1996 | CA2013237C Universal motor speed control circuit for hand mixer |
01/14/1996 | CA2153526A1 Power supply to a stator of a polyphase reluctance machine |
01/13/1996 | CA2151756A1 Electric machine controller |
01/11/1996 | WO1996000882A1 Switched reluctance machine having unbalance forces compensation coils |
01/11/1996 | WO1995023000A3 Reciprocating pump arrangement |
01/10/1996 | EP0691732A1 Single-phase synchronous motor with permanently excited rotor |
01/10/1996 | EP0429659B1 Driving system and controller therefor |
01/09/1996 | US5483139 Motor start, reverse and protection system without a starting capacitor |
01/03/1996 | EP0500950B1 Reluctance-type motor driving system |
01/03/1996 | EP0443032B1 Power supply control apparatus of inductance load |
12/29/1995 | EP0733279A4 Repulsion motor |
12/21/1995 | WO1995034947A1 Process for controlling the switching-off process of the branches of a reluctance engine |
12/20/1995 | CN1113617A Improvement to electric motors |
12/13/1995 | EP0579694B1 Process and circuits for determining machine-related electromagnetic and mechanical state variables on electrodynamic induction machines supplied via converters |
12/13/1995 | CN1113213A Velocity regulated, open current loop, variable voltage, variable frequency, linear induction motor drive for an elevator car door |
12/13/1995 | CN1113212A Noise free linear induction motor elevator car door drive |
12/06/1995 | EP0685926A2 Method and device for controlling speed of a washing machine motor |
12/06/1995 | EP0685121A1 Field weakening for a doubly salient motor with stator permanent magnets |
12/06/1995 | EP0569588B1 Device for controlling current application to inductance coil |
12/06/1995 | EP0500963B1 Three-phase reluctance motor |
11/29/1995 | EP0684695A2 Variable speed control for a hand-held electric power tool |
11/29/1995 | EP0684693A2 Improved sensorless commutation controller for a poly-phase dynamoelectric machine |
11/29/1995 | EP0684692A2 Motor drive with programmable funtion switches |
11/29/1995 | EP0684689A2 Method and device for controlling speed of a washing machine motor |
11/29/1995 | EP0684688A1 Power generator with a transformer |
11/29/1995 | EP0684334A2 Method and device for controlling speed of a washing machine motor |
11/29/1995 | EP0542955B1 Load-control circuit for a mains-powered asynchronous single-phase capacitor motor |
11/29/1995 | EP0413032B1 Method of controlling ac motor |
11/22/1995 | CN1112308A An electric motor for portable machine tools |
11/21/1995 | US5469039 Control of switched reluctance machines |
11/21/1995 | US5469030 Direct current motor drive apparatus |
11/16/1995 | DE4416302A1 Electronic and electric engineering units and facilities for squirrel cage motors |
11/14/1995 | US5467025 Sensorless rotor position measurement in electric machines |
11/08/1995 | EP0476152B1 Device for driving variable reluctance motor |
11/02/1995 | WO1995028867A1 Vacuum cleaner driven by an electric motor |
10/26/1995 | WO1995028763A1 Method and device for lowering induced voltage of induction motor |
10/26/1995 | WO1995016986A3 Voice coil driven positioner for coarse and fine positioning of magnetic head in multi-track tape drive |
10/25/1995 | EP0678972A1 A control circuit for an inductive load |
10/24/1995 | US5461295 Noise reduction in a switched reluctance motor by current profile manipulation |
10/23/1995 | CA2147583A1 Control circuit for an inductive load |
10/18/1995 | EP0677800A2 Electronic control system of washing water pressure |
10/17/1995 | US5459385 For commutating phases of a variable reluctance motor |
10/11/1995 | EP0676527A1 Linear induction motor elevator car door drive |
10/11/1995 | EP0676526A1 Maintaining open loop current drive to linear induction motor |
10/11/1995 | EP0676525A1 Linear induction motor drive for an elevator car door |
10/10/1995 | US5457375 Sensorless commutation controller for a poly-phase dynamoelectric machine |
10/10/1995 | US5457373 Electric motor with integrally packaged day/night controller |
10/05/1995 | WO1995026261A1 Reciprocatory dry shaver |
10/04/1995 | EP0674979A1 Reciprocatory dry shaver |
10/04/1995 | EP0378693B1 Coil winding structure of a.c. motor coil |
10/03/1995 | US5455886 Electrical implement with variable speed control |
10/03/1995 | US5455496 Head-retract circuit for moving media storage apparatus |
10/03/1995 | US5455473 Field weakening for a doubly salient motor with stator permanent magnets |
09/28/1995 | WO1995026072A1 Current regulation process for a three-phase, static-converter fed, permanently excited synchronous machine |
09/28/1995 | DE4406770C1 2-point regulation system for reluctance motor |
09/20/1995 | EP0673109A1 An electric motor for portable machine tools |
09/20/1995 | EP0672912A1 Indicator for a monophase asynchronous motor |
09/20/1995 | EP0672287A1 Voice coil motor control circuit and method |
09/14/1995 | DE4408442A1 Circuit to control speed of universal motor e.g for vehicle air conditioner |
09/13/1995 | EP0671812A2 Circuit arrangement for controlling the speed of electric motors |
09/13/1995 | EP0671542A1 Electric motor driven device including means for measuring the movement of the driven body |
09/13/1995 | CN1108324A Method and device for controlling speed of a washing machine motor |
09/12/1995 | US5449992 Braking circuit for an electric motor |
09/07/1995 | DE19513301A1 Momentum exchange unit flicks clips back to the start of the process |
09/06/1995 | EP0670628A1 Device for supplying power to an alternating current motor |
09/06/1995 | EP0670622A1 Improvement to electric motors |
09/05/1995 | US5448149 Indirect rotor position sensor for a sinusoidal synchronous reluctance machine |
09/05/1995 | CA2143929A1 Electric motors |
08/31/1995 | WO1995023000A2 Reciprocating pump arrangement |
08/31/1995 | CA2183666A1 Reciprocating pump arrangement |
08/30/1995 | EP0669709A1 Output stage especially for integrated amplifiers with externally connected output power devices |
08/30/1995 | CN1107625A Rotational speed control device for an ac motor |
08/29/1995 | US5446361 Circuit arrangement for powering a two-phase asynchronous motor |
08/29/1995 | US5446360 Method and apparatus for controlling single phase induction motor |
08/29/1995 | US5446359 Current decay control in switched reluctance motor |
08/24/1995 | WO1995022851A1 Apparatus for obtaining three-phase position detection signals by one position detection element |
08/16/1995 | EP0667009A1 Motor driven step switch |
08/09/1995 | EP0641501A4 Variable reluctance drive system. |
08/08/1995 | US5440218 Reversible switched reluctance motor operating without a shaft position sensor |
07/31/1995 | EP0672287A4 Voice coil motor control circuit and method. |
07/26/1995 | EP0664601A1 Pulsed synchronous reluctance motor |
07/26/1995 | CN1105786A Motor capable of using high or low voltage |
07/25/1995 | US5436546 Method and apparatus for switching back a change-pole motor |
07/25/1995 | US5436544 Method of phase advancing compensation control for an AC synchronous motor |
07/12/1995 | EP0662751A1 Reluctance motor |
07/12/1995 | EP0662750A1 Motor control |
07/12/1995 | EP0662266A1 Process and device for regulating a converter-powered, permanently excited synchronous motor. |
07/12/1995 | EP0662265A1 Sensing of rotor position of a switched reluctance motor without a shaft position sensor |
07/12/1995 | EP0564468B1 Phase-control circuit |
07/11/1995 | US5432421 Process for detecting the position, direction of movement and dynamic characteristic values of remote-controlled displacement of an adjustable object |
07/11/1995 | US5432420 Reluctance-type motor and a DC motor capable of performing regenerative braking |
07/06/1995 | DE4414029A1 Capacitor switch for parallel- or series-wound capacitor motor |
07/06/1995 | CA2138916A1 Motor control |
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 |
06/29/1995 | DE4335481A1 Circuit arrangement for limiting electrical motor speed response to load change |