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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09/24/2009 | DE102008013750A1 Ice flap device for refrigerator, has drive device comprising alternating current motor and electric switch that activates alternating current motor depending on user action for moving flap unit from closed position to opened position |
09/23/2009 | EP2104225A1 Electrical machine arrangement |
09/23/2009 | EP2104222A1 Method and device for controlling a brushless AC motor |
09/23/2009 | EP2104221A1 Method for controlling a multi-phase electromotor operated in a star circuit |
09/23/2009 | CN101540582A Motor economic operation controller |
09/22/2009 | US7592772 Stator inter-turn fault detection of synchronous machines |
09/17/2009 | DE112007002902T5 Vibrationsisolationssteuerungssystem Vibration isolation control system |
09/16/2009 | EP2101405A2 Controlling switching of thyristors to reduce power loss in variable speed motor |
09/16/2009 | CN201312281Y Improvement on motor control device on iron chip conveyor |
09/16/2009 | CN101534091A Mine flameproof and intrinsic safety type variable frequency speed control device |
09/16/2009 | CN100541961C Series motor and method for controlling the same |
09/09/2009 | EP2097971A1 Asynchronous motor control |
09/09/2009 | CN100539390C Electric motor driving controller |
09/09/2009 | CN100539387C Drive circuit for a synchronous electric motor |
09/09/2009 | CN100538069C A linear motor, a linear compressor, a method of controlling a linear compressor, a cooling system, and a linear compressor controlling a system |
09/02/2009 | CN101521086A Electrical inductor assembly |
09/02/2009 | CN100536291C Variable reluctance generator |
09/02/2009 | CN100536290C Start of switching reluctance generator |
08/27/2009 | WO2009082799A3 Gas compressor driven by a linear motor and having a detector of impact between a cylinder and a piston, method of detection |
08/26/2009 | EP2093098A1 Wheel driving apparatus and electric vehicle including the same |
08/26/2009 | EP2092632A1 Method for controlling the driveability of the rear wheels of a vehicle and corresponding driving assembly |
08/26/2009 | CN201298819Y Single-camera circuit device |
08/26/2009 | CN101517887A Method for controlling AC linear motors, device for driving AC linear motors, and system of AC linear motors |
08/26/2009 | CN100533929C Reciprocating motor |
08/25/2009 | US7579804 Method to measure the angular speed of an induction motor |
08/25/2009 | US7579795 Brushless-motor driving control device, image reading apparatus, and image forming apparatus |
08/20/2009 | CA2621889A1 Asphalt melting device and system |
08/19/2009 | EP2088959A1 System for adapting the resonant operation of a personal care appliance during the lifetime thereof |
08/19/2009 | EP1413048B1 Method for controlling a variable-reluctance machine |
08/19/2009 | CN201294483Y Motor driver and control circuit board |
08/19/2009 | CN201294423Y Accurate orientation asynchronous motor |
08/19/2009 | CN100530936C Power supply circuit of an electric and corresponding control method |
08/18/2009 | CA2547023C Battery response control unit and process for an asynchronous machine, data storage medium for this process |
08/13/2009 | CA2751225A1 Electromagnetic field energy recycling |
08/12/2009 | EP2088026A2 Movable body system having linear motor |
08/12/2009 | EP1297608B1 Linear actuator control structure |
08/12/2009 | CN201290091Y Switch device capable of adjusting and displaying motor rotary speed |
08/12/2009 | CN201290089Y Control device for series machine of electric vehicle |
08/12/2009 | CN101505929A Method for determining the dirtiness of an electrically driven cutting tool, and hair cutting device |
08/12/2009 | CN101505135A Controllable flux permanent magnet synchronous motor driving apparatus for built-in mixed rotor |
08/12/2009 | CN101505132A Winch motor control system and control method |
08/12/2009 | CN101505131A Asymmetric direct power control method for dual feed asynchronous wind power generator |
08/06/2009 | US20090193923 Motor control apparatus |
08/06/2009 | DE112007002286T5 Verfahren zum Steuern von Wechselstrom-Linearmotoren, Vorrichtung zum Antreiben von Wechselstrom-Linearmotoren und System von Wechselstrom-Linearmotoren A method for controlling AC linear motors, means for driving linear motors and AC system of AC linear motors |
08/06/2009 | DE102008007401A1 Universal motor operating method for e.g. washing machine, involves executing field switching depending on operating condition of universal motor, and conducting field switching depending on power reserve of universal motor |
08/05/2009 | EP2086094A2 Permanently excited electric machine for a household appliance |
08/05/2009 | CN201286081Y Energy saving control circuit for solar travelling hat |
08/05/2009 | CN201286080Y Energy saving control circuit for solar travelling hat |
08/05/2009 | CN101501983A Variable voltage supply system |
08/05/2009 | CN101501982A Power supply device for permanent magnet field type linear motor and PWM inverter for permanent magnet field type motor |
08/05/2009 | CN101500398A Heat radiation structure for motor driver |
08/05/2009 | CN101499769A Three phase rat cage asynchronous motor having self interference resisting speed regulating circuit |
08/04/2009 | US7570464 Overload protective apparatus of a compressor and a method thereof |
07/30/2009 | WO2009050400A3 Method for controlling the power supply of an electric machine with variable reluctance |
07/30/2009 | WO2006006810A9 Power variable-type motor driving circuit and driving method |
07/29/2009 | CN100521500C Coil load driving circuit and optical disc device |
07/28/2009 | US7567749 Motor control circuit |
07/23/2009 | WO2009091319A1 Electric motor |
07/22/2009 | EP2079377A1 Method for the bidirectional control of an electric motor for a surgical or dental instrument |
07/16/2009 | US20090179601 Transition wiring system for multiple traction generators |
07/16/2009 | DE102008058717A1 Verfahren und System zum Betreiben eines Elektromotors, der mit mehreren Leistungsversorgungen gekoppelt ist Method and system for operating an electric motor, which is coupled with a plurality of power supplies |
07/09/2009 | WO2009082799A2 Gas compressor driven by a linear motor and having a detector of impact between a cylinder and a piston, method of detection |
07/08/2009 | CN201270493Y On-chip motor servo-controlled system |
07/08/2009 | CN100511964C Motor controller |
07/01/2009 | CN201266903Y Shunt chopper for side control of high-voltage motor speed-governing rotor |
07/01/2009 | CN101473526A Method and apparatus for quiet fan speed control |
07/01/2009 | CN100508366C Electric hand-held power tool having a memory function |
07/01/2009 | CN100508360C Rotor position detection in an electrical machine |
07/01/2009 | CN100508353C Vibration type actuator drive controller and method of controlling drive speed of vibration type actuator |
06/25/2009 | WO2009077053A2 Arrangement having oscillating motor and method for controlling an oscillating motor |
06/25/2009 | US20090160392 Virtual Moving Air Gap For An Axial Flux Permanent Magnet Motor With Dual Stators |
06/25/2009 | DE102007060466A1 Anordnung mit einem schwingenden Motor und Verfahren zur Regelung eines schwingenden Motors Assembly comprising a vibrating engine and method for controlling a vibrating motor |
06/24/2009 | EP1769576B1 Device for driving an electromagnet, particularly for operating pumps |
06/24/2009 | CN201263136Y Single-phase capacitor motor controller of single-phase electric power used in building hanging cradle |
06/24/2009 | CN100505511C Device for driving an electromagnet, particularly for operating pumps |
06/23/2009 | US7552005 Method for fault diagnosis of a turbine engine |
06/23/2009 | US7550941 Linear-compressor control system, a method of controlling a linear compressor, a linear compressor and cooling system |
06/18/2009 | WO2009075271A1 Air compressor and motor control device |
06/18/2009 | WO2009075171A1 Flat motor |
06/18/2009 | US20090153095 Driving Circuit for Single-Phase Switched Reluctance Motor and Driving Method Thereof |
06/17/2009 | CN100502225C General AC motor control system |
06/10/2009 | CN100499353C Drive system for a set of machines |
06/09/2009 | US7545122 Control method of generator |
06/09/2009 | US7545070 Commutator motor having a number of field winding groups |
06/04/2009 | WO2009070089A1 Method and system for controlling an electric ac motor |
06/04/2009 | WO2006057529A3 Operation control device and method of compressor |
06/04/2009 | WO2006006810A3 Power variable-type motor driving circuit and driving method |
06/04/2009 | DE102007055020A1 Vorrichtung zur Energieversorgung einer mehrere Wicklungsabschnitte aufweisenden Langstatorwicklung Apparatus for supplying power to a plurality of winding sections having long stator winding |
06/03/2009 | EP2066020A2 Deriving values of parameters in electrical machines |
06/03/2009 | EP2066019A2 Voltage clamping and energy recovery circuits |
06/03/2009 | CN201252516Y Photoelectric controllable silicon type wound motor speeder |
06/03/2009 | CN201252515Y Stator-rotor synchronously and reversely rotated generator |
06/03/2009 | CN201252514Y Stator-rotor synchronously and reversely rotated motor |
06/02/2009 | US7541761 Electric motor with integral regulator inductance |
06/02/2009 | US7541758 MOS rectifying device, driving method thereof, and motor generator and motor vehicle using thereof |
06/02/2009 | CA2530162C Electric submersible pumps |
05/27/2009 | EP2063528A2 Improvements in or relating to BLDC motors |
05/27/2009 | CN201248026Y Energy-saving control circuit for solar traveler's cap |
05/27/2009 | CN100492874C Diesel engine linear electric motor speed regulating actuator |
05/22/2009 | WO2009019344A3 Supply device for a motor vehicle alternator, and alternator employing such a device |