| Patents for H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage (13,284) |
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| 07/04/2012 | CN202309507U 一种制动单元及电力变换设备 A brake unit and power conversion equipment |
| 07/04/2012 | CN202300963U 双变频空气压缩机机组 Dual-frequency air compressor unit |
| 07/04/2012 | CN102549913A Controller and method for minimizing phase advance current |
| 07/04/2012 | CN102545777A Multi-level inverter having dual controller |
| 07/04/2012 | CN102545776A Variable frequency control circuit and control method for electric hoist |
| 07/04/2012 | CN102545775A Oil pumping unit frequency conversion control method based on unit stroke energy |
| 07/04/2012 | CN102545774A High power-density, high back emf permanent magnet machine |
| 07/04/2012 | CN102545773A Motor control method and device as well as two-for-one twister |
| 07/04/2012 | CN102545767A Bearingless synchronous reluctance motor decoupling control system and construction method thereof |
| 07/04/2012 | CN102545763A Methods, systems and apparatus for adjusting duty cycle of pulse width modulated (PWM) waveforms |
| 07/04/2012 | CN102545739A Motor control device and electric power steering equipment having the same |
| 07/04/2012 | CN102545648A Multi-phase current supplying circuit, driving apparatus, compressor, and air conditioner |
| 07/04/2012 | CN102540076A Method for measuring time constant of rotor of asynchronous machine |
| 07/04/2012 | CN101888208B Intelligent contactless master speed regulation device |
| 07/04/2012 | CN101826838B High-energy-efficiency multilevel high-voltage variable frequency speed control device with directly series-connected insulated gate bipolar transistors (IGBT) |
| 07/04/2012 | CN101806825B Method and system for measuring effective value of electric parameter of electric motor powered up by frequency converter |
| 07/04/2012 | CN101682289B Power converter |
| 07/04/2012 | CN101635559B Inverter generator |
| 07/04/2012 | CN101635556B Inverter generator |
| 07/04/2012 | CN101630940B Fuzzy neural network inverse robust controller of induction motor speed regulation system and construction method |
| 07/04/2012 | CN101615849B AC power supply device for regenerating magnetic energy |
| 07/04/2012 | CN101589542B Power supply with two series inverters for a polyphase electromechanical actuator |
| 07/04/2012 | CN101582650B Power converter |
| 07/04/2012 | CN101529715B Power converter |
| 07/04/2012 | CN101505133B Permanent magnet AC motor systems and control algorithm restart methods |
| 07/03/2012 | US8212507 Procedures and control system to control a brushless electric motor |
| 07/03/2012 | US8212506 AC motor driving circuit and electric car driving circuit |
| 06/28/2012 | WO2012086674A1 Power conversion apparatus |
| 06/28/2012 | WO2012086095A1 Motor-driving apparatus for driving three-phase motor of variable speed type |
| 06/28/2012 | WO2011128770A3 Electric machine; control device for controlling said electric machine; electric propulsion system comprising said electric machine and said control device; and method for controlling said electric machine |
| 06/28/2012 | WO2011080791A8 Control device for an asynchronous electric machine, electric propulsion system- comprising said device, and method for controlling an asynchronous electric machine |
| 06/28/2012 | US20120161679 Active High Voltage Bus Bleed Down |
| 06/28/2012 | US20120161525 Motor control device of air conditioner using distributed power supply |
| 06/28/2012 | DE112009002531T5 System und Verfahren zum Antreiben eines Elektromotors mit veränderlicher Drehzahl für einen Kompressor, ein Kompressor mit variabler Leistung und eine Kühlanlage System and method for driving an electric motor with variable speed for a compressor, a compressor with variable capacity and a cooling plant |
| 06/28/2012 | DE102011056920A1 Steuerung Control |
| 06/28/2012 | DE102010064104A1 Apparatus for driving electric machine arranged in vehicle, has control unit to generate drive signals for driving switching elements, so that electric machine torque corresponding to torque setpoint is generated based on duty cycle values |
| 06/28/2012 | DE102010055744A1 Three-phase motor controlling method for driving cooling fan of e.g. forklift lorry, involves determining flux vector, rotor position, and speed of motor on basis of model calculation of operating performance of motor |
| 06/27/2012 | EP2469238A2 Photovoltaic device |
| 06/27/2012 | EP2282401B1 Motor control device and electric steering system |
| 06/27/2012 | CN202285386U 基于dsp的高压转子变频调速装置 Based on the high-pressure rotor dsp frequency control device |
| 06/27/2012 | CN102522948A Hybrid intelligent adjusting method of torque hysteresis width in DTC (Direct Torque Control) system |
| 06/27/2012 | CN102522947A Drive controller and drive control method of motor |
| 06/27/2012 | CN102522946A Method, device and system for controlling fan motor |
| 06/27/2012 | CN101689828B Motor drive system and its control method |
| 06/27/2012 | CN101533064B Longevity diagnostic device of power conversion apparatus |
| 06/27/2012 | CN101507101B Permanent magnet synchronization motor vector control device |
| 06/27/2012 | CN101499758B Controller for multi-phase electric motor |
| 06/27/2012 | CN101494431B Controller of multi-phase electric motor |
| 06/27/2012 | CN101485080B Motor drive device |
| 06/26/2012 | US8207699 Method and apparatus for AC motor control |
| 06/26/2012 | CA2660601C Vector control device for alternating-current electric motor |
| 06/21/2012 | WO2012081493A1 Control device for rotating electrical machine |
| 06/21/2012 | WO2012079817A1 Method and apparatus for prevention of interference to a radio transmission system by a pulse-width-modulated signal |
| 06/21/2012 | US20120157685 Intermediate release nicotinic acid compositions for treating hyperlipidemia which exhibit an in vivo stair-stepped absorption curve |
| 06/21/2012 | US20120153882 Method and Apparatus for Synchronization of Pulse Width Modulation |
| 06/21/2012 | US20120153879 Apparatus for energy transfer using converter and method of manufacturing same |
| 06/21/2012 | US20120153878 Apparatus for energy transfer using converter and method of manufacturing same |
| 06/21/2012 | US20120153877 System for causing temperature rise in battery |
| 06/21/2012 | DE102011121833A1 Inverter device for driving three-phase induction motor of injection molding machine, has carrier generation unit generating carrier frequency pattern of pulse width modulation based on set of operation conditions of machine |
| 06/21/2012 | DE102011121832A1 Inverter device for driving motor e.g. servomotor, has control unit that performs operating condition setting process around carrier frequency of pulse width modulation signal based on temperature information of semiconductor device |
| 06/20/2012 | EP2465196A2 Controller and method for minimizing phase advance current |
| 06/20/2012 | EP2465195A2 Controller and method for transitioning between control angles |
| 06/20/2012 | EP2131488B9 Electric vehicle controller |
| 06/20/2012 | EP1609226B1 Synchronous electric motor comprising a stator and at least one rotor and associated control device |
| 06/20/2012 | CN101898518B Pulse DC supply and AC speed-regulating electric locomotive |
| 06/20/2012 | CN101728921B Solar magnetic power device |
| 06/19/2012 | US8203302 System and method for controlling four-quadrant operation of a switched reluctance motor drive through a single controllable switch |
| 06/19/2012 | US8203297 Motor control apparatus for controlling motor in accordance with rotational position of rotor thereof |
| 06/19/2012 | US8203292 Controller of multi-phase electric motor |
| 06/14/2012 | WO2012077752A1 Control device |
| 06/14/2012 | WO2012077153A1 Inductance measurement device and measurement method for synchronous electric motor |
| 06/14/2012 | US20120146565 Device and method for driving an electric machine for abating and masking distinctive acoustic emissions |
| 06/14/2012 | US20120145473 Motor drive apparatus and electric power steering system using the same |
| 06/13/2012 | CN102498659A Three-phase ac motor drive control device |
| 06/13/2012 | CN102497160A Motor driver alternating current input voltage amplitude estimation method |
| 06/13/2012 | CN102497159A Alternating current frequency conversion control method suitable for vibrating stress relief |
| 06/13/2012 | CN102497090A Frequency converter charging circuit |
| 06/13/2012 | CN102493953A Energy-saving control system, truck crane and energy-saving control method |
| 06/13/2012 | CN101764569B Timer/counter multifunctional multiplexing algorithm and device |
| 06/13/2012 | CN101557196B Current regulator and current control method and system for AC motors |
| 06/13/2012 | CN101523712B Power converter |
| 06/13/2012 | CN101325381B Two-source inverter |
| 06/13/2012 | CN101039079B Apparatus and method for supplying DC power source |
| 06/12/2012 | US8198847 Brushless motor system |
| 06/07/2012 | WO2012072367A2 Variable speed drive provided with a common-mode filtering device |
| 06/07/2012 | WO2012072311A1 Method and device for operating an inverter-controlled electric machine in the event of a fault |
| 06/07/2012 | WO2011092011A3 Method for improving efficiency in a multiphase motor, and motor for implementing such a method |
| 06/07/2012 | US20120139463 Power supply module for hall sensorless brushless direct current motor |
| 06/06/2012 | DE102010062334A1 Verfahren und Vorrichtung zum Betreiben einer durch einen Wechselrichter gesteuerten elektrischen Maschine im Falle einer Störung Method and apparatus for operating a controlled by an inverter electric machine in case of failure |
| 06/06/2012 | DE102010053303A1 Method for controlling e.g. MOSFETs, of three-phase inverter of electric machine in motor car, involves exchanging inverter from motor-driven operating mode into generator operation mode if rectified voltage is larger than threshold value |
| 06/06/2012 | CN202268842U 一种变频电机驱动电路 One kind of variable frequency motor drive circuit |
| 06/06/2012 | CN202268841U 矿用隔爆型电机调速装置 Flameproof motor speed control device |
| 06/06/2012 | CN202268811U 单电源三相驱动电路 Single-supply three-phase drive circuit |
| 06/06/2012 | CN101755384B Inverter control device and vehicle |
| 06/06/2012 | CN101595633B Electric motor control apparatus |
| 06/06/2012 | CN101473527B Inverter control method |
| 06/05/2012 | US8193756 Variable speed drive for permanent magnet motor |
| 06/05/2012 | CA2654432C Control apparatus for ac rotary machine |
| 05/31/2012 | US20120134188 Systems and Apparatus for Reducing Electromagnetic Interference and Methods of Assembling the Same |
| 05/31/2012 | DE19532477B4 Verfahren zum Anlassen einer Asynchronmaschine Method for starting an asynchronous |