| 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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| 01/30/2013 | CN102113201B Regenerative switched reluctance motor driving system |
| 01/30/2013 | CN101789750B Control method for reducing traction pulsation of linear induction motor |
| 01/29/2013 | US8362731 Air gap control systems and methods |
| 01/28/2013 | CA2783843A1 High pressure solenoid pump |
| 01/24/2013 | WO2012037624A3 A start and control method for a single-phase induction motor, a start and control system for a single-phase induction motor and an electronic start and control device applied to a single-phase induction motor |
| 01/23/2013 | EP2549640A2 Electronic commutator circuits |
| 01/23/2013 | CN202696390U Electromagnetic speed-regulation three-phase asynchronous motor |
| 01/17/2013 | WO2013008275A1 Transverse flux machine apparatus |
| 01/17/2013 | WO2012023121A3 Method for operating an electric appliance and electric appliance |
| 01/17/2013 | WO2012023120A3 Resonant motor unit and electric device with resonant motor unit |
| 01/17/2013 | DE102012012602A1 Brushless direct current (DC) machine e.g. brushless DC motor for e.g. vehicle, has several strands (STI) electrically isolated from each other |
| 01/16/2013 | EP2545640A1 Method and device for operating an asynchronous motor having increased efficiency |
| 01/16/2013 | CN102884321A System for controlling a resonant linear compressor piston, method for controlling a resonant linear compressor piston, and resonant linear compressor |
| 01/16/2013 | CN102882464A Motor driving circuit and motor device |
| 01/16/2013 | CN102882382A Power-frequency power supplied electromagnetic device capable of running at magnetic flux frequency lower than power frequency |
| 01/15/2013 | US8354811 Switching circuit for series configuration of IGBT transistors |
| 01/15/2013 | US8353174 Control method for vapor compression system |
| 01/15/2013 | CA2598972C Starter/generator with permanent magnet generator position indicator |
| 01/10/2013 | WO2013004311A1 Electronic commutation method in direct current electric motors |
| 01/10/2013 | WO2012016914A3 Method and circuit arrangement for checking the rotor position of a synchronous machine |
| 01/10/2013 | US20130009590 Method and device for operating an asynchronous motor with increased efficiency |
| 01/10/2013 | DE102011078841A1 Verfahren zur Ansteuerung einer mehrphasigen Maschine A method of driving a multi-phase machine |
| 01/09/2013 | EP2544362A2 Apparatus for operating an interior permanent magnet synchronous motor |
| 01/09/2013 | EP2544361A2 Inverter Device and Electric Motor Drive System |
| 01/09/2013 | EP2544360A2 Apparatus for operating an interior permanent magnet synchronous motor |
| 01/09/2013 | CN202663353U Alternating-current speed regulation system suitable for mine fan |
| 01/09/2013 | CN102868356A H bridge driver circuit |
| 01/09/2013 | CN102868347A Inverter device and electric motor drive system |
| 01/09/2013 | CN101917159B System and method for controlling running speed and displacement of linear motor |
| 01/09/2013 | CN101689827B Conduction angle control of a switched reluctance generator |
| 01/03/2013 | WO2012110883A3 Rotary electric machine driving system |
| 01/02/2013 | EP2541755A1 Drive device for a vehicle |
| 01/02/2013 | CN202652138U Intelligent energy-saving starter of electric motor |
| 01/02/2013 | CN102859865A Movement control device, movement control method, and movement control circuit |
| 01/02/2013 | CN102158170B Drive mechanism |
| 01/02/2013 | CN101355333B Control apparatus for reluctance type synchronous motor |
| 01/02/2013 | CN101247099B Control of an electrical machine |
| 12/27/2012 | US20120326652 High power-density, high efficiency, non-permanent magnet electric machine |
| 12/26/2012 | EP2538547A1 Device and method for identifying mechanical parameters of an alternating current asynchronous motor without using a position sensor |
| 12/26/2012 | CN202634357U Frequency relay |
| 12/26/2012 | CN202634356U Motor acceleration and deceleration accuracy control device |
| 12/26/2012 | CN102844978A Method and device for operating asynchronous motor having increased efficiency |
| 12/26/2012 | CN102843093A Online calibrating method and device for rotor time constant of asynchronous motor and control system |
| 12/26/2012 | CN102025314B Motor control device and washing machine |
| 12/26/2012 | CN101388575B Wound type asynchronous motor with low speed regulating loss and speed regulating device |
| 12/20/2012 | WO2012172237A1 Method and device for controlling a electric motor propulsion unit with decoupled controls |
| 12/20/2012 | WO2012059368A3 Pitch motor drive circuit which can operate in emergency mode |
| 12/20/2012 | WO2011128686A3 Control of a brushless permanent-magnet motor |
| 12/20/2012 | WO2010090909A3 Control techniques for motor driven systems |
| 12/19/2012 | EP2535148A1 Motorized tool |
| 12/19/2012 | EP2534753A2 Magnetically powered reciprocating engine and electromagnet control system |
| 12/19/2012 | EP2534752A2 Method and control unit for determining the strength of a magnetization current for an asynchronous motor |
| 12/19/2012 | EP2534523A1 Method and apparatus for controlling a mems micro-mirror device |
| 12/19/2012 | CN202617062U Explosion-proof variable frequency speed adjuster with zero-current idle running mode |
| 12/19/2012 | CN102835020A Method and system for measuring a characteristic of an electric motor |
| 12/19/2012 | CN102832881A Simple motor gear identification method and device based on potential transformation technology |
| 12/19/2012 | CN102832876A Stator integer slot and fractional slot winding conversion running system of induction motor and running method |
| 12/13/2012 | US20120313566 Device for operating synchronous motors and associated method |
| 12/12/2012 | EP2533405A1 Stator for an EC motor and EC motor with such a stator |
| 12/12/2012 | EP2532889A1 Wind turbine and method of operating a wind turbine |
| 12/12/2012 | CN202602589U Digital controller for single-phase alternating current motor |
| 12/06/2012 | WO2012163433A2 Asynchronous motor with load-dependent star or delta connection |
| 12/06/2012 | WO2012116425A3 Method for starting a single-phase induction motor, starting device for a single-phase motor and starting system therefor |
| 12/06/2012 | US20120306424 Electric drive with electronically scalable reconfigurable winding |
| 12/06/2012 | DE102012209080A1 Elektroantrieb mit elektronisch skalierbarer umkonfigurierbarer Wicklung Electric drive with an electronically reconfigurable scalable winding |
| 12/06/2012 | DE102011076667A1 Verfahren zur Reduzierung des Anlaufstromes bei einer mit Blockkommutierung betriebenen mehrphasigen Maschine Method to reduce the starting current in a polyphase machine operated with block commutation |
| 12/05/2012 | CN202586867U Brushless double-fed motor control device |
| 12/05/2012 | CN202586764U H bridge output circuit driven by motor |
| 12/05/2012 | CN102811018A Asynchronous motor adopting star connection or delta connection related to load |
| 12/05/2012 | CN102811017A Control unit and driving apparatus using the same |
| 12/05/2012 | CN102811016A Intelligent motor power saver |
| 12/05/2012 | CN102158040B High-accuracy electromagnetic force controlled linear motor and control system thereof |
| 11/29/2012 | US20120299524 Parallel drive system |
| 11/28/2012 | CN202565224U Controller of high-power AC asynchronous motor for directly-driven bus |
| 11/28/2012 | CN202565223U Novel alternating-current asynchronous motor controller for all-electric car |
| 11/28/2012 | CN102804592A Emergency adjusting device for blade adjusting systems of wind power plants |
| 11/28/2012 | CN102804566A Position detection device for movable magnet type linear motor |
| 11/28/2012 | CN102802488A Vacuum cleaner and method for controlling an electric motor |
| 11/27/2012 | US8319456 Method, controller, and power converter for controlling a single-switch based switched reluctance machine |
| 11/22/2012 | US20120293094 Vibration damping apparatus, electric actuator driving apparatus and vehicle |
| 11/21/2012 | EP2524424A2 A fault tolerant electrical machine |
| 11/21/2012 | CN102792582A Magnetically powered reciprocating engine and electromagnet control system |
| 11/21/2012 | CN102792580A Method and system for controlling a permanent magnet synchronous motor |
| 11/15/2012 | WO2011061215A3 Vibration energy harvester for converting mechanical vibrational energy into electrical energy |
| 11/14/2012 | CN102782594A Disturbance suppression load control device |
| 11/14/2012 | CN102780447A Single-power source six-phase motor drive system |
| 11/14/2012 | CN102780446A Energy-saving drag automatic control device of oil pumping unit |
| 11/14/2012 | CN102780445A Dual alternating current chopper speed regulation of wound-rotor asynchronous motor |
| 11/14/2012 | CN102780427A Six-phase motor driving system |
| 11/14/2012 | CN102780426A Dual-power motor driving system |
| 11/14/2012 | CN101873013B Electromobile motor and supercapacitor control system based on DSR (Digital Signal Processor) |
| 11/14/2012 | CN101617463B Asynchronous motor control |
| 11/14/2012 | CN101521086B Electrical inductor assembly |
| 11/08/2012 | WO2012150930A1 Method and apparatus for controlling pulse-width modulation in an electric motor |
| 11/08/2012 | CA2834495A1 Torque based electronic pulse width modulation control system for a switched reluctance motor |
| 11/08/2012 | CA2834492A1 Method and apparatus for controlling pulse-width modulation in an electric motor |
| 11/07/2012 | EP2521250A2 Linear electrodynamic motor, cryogenic cooler comprising such a motor and method using such a motor |
| 11/07/2012 | CN202524359U Low pressure speed regulation control system of high pressure water injection motor in water injection station |
| 11/07/2012 | CN102769427A Energy saver |
| 11/07/2012 | CN102768540A Method for controlling elevation angle and azimuth angle of solar cell panel |