| 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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| 02/21/2012 | US8120307 System and method for providing constant loading in AC power applications |
| 02/21/2012 | US8120306 Voltage source inverter with a voltage offset |
| 02/21/2012 | US8120296 Motor magnetic pole position detecting device |
| 02/16/2012 | DE102010034299A1 Schneidemaschine Guillotine |
| 02/15/2012 | CN202145602U 一种基于手摇式绕线机改造的自动绕线机 Hand-winding machine based on the transformation of the automatic winding machine |
| 02/15/2012 | CN102355195A Multi-inverter module paralleling frequency conversion device for transmission system and control policy |
| 02/15/2012 | CN102355194A Power-saving setting circuit for frequency converters of hydraulic presses |
| 02/15/2012 | CN102355049A Large power variable-frequency power supply device with adjustable output voltage ultra-wide range |
| 02/14/2012 | US8115445 Operation control method and operation control apparatus for variable speed generator-motor |
| 02/14/2012 | US8115444 Common mode filter for motor controllers |
| 02/14/2012 | US8115435 Device for controlling a polyphase synchronous rotary electrical machine and polyphase synchronous rotary electrical machine containing such a device |
| 02/14/2012 | US8115433 Electrical system for pulse-width modulated control of a power inverter using phase-shifted carrier signals and related operating methods |
| 02/14/2012 | US8115430 Methods, systems and apparatus for controlling operation of two alternating current (AC) machines |
| 02/09/2012 | WO2012017766A1 Control device |
| 02/09/2012 | WO2012017727A1 Hermetically sealed compressor |
| 02/08/2012 | EP2416490A2 Power train for a transport vehicle, in particular a railway vehicle, and method for controlling such a chain |
| 02/08/2012 | CN202143031U 矿用立井提升悬吊保护装置 Mine Shaft lifting the suspension protector |
| 02/08/2012 | CN202143030U 一种抽油烟机电机控制装置 One kind of hood motor control device |
| 02/08/2012 | CN202143029U 一种变频节能设备控制装置 One kind of energy-saving equipment frequency control device |
| 02/08/2012 | CN202143028U 三相交流异步电机变频调速控制装置 Three-phase AC induction motor speed control device |
| 02/08/2012 | CN202139436U 定型机调速装置 Setting machine speeder |
| 02/08/2012 | CN102349231A 3-phase motor control device, 3-phase motor system, and 3-phase motor control method and program |
| 02/08/2012 | CN102349230A Controller of AC rotating machine |
| 02/08/2012 | CN102349228A Current source inverter device |
| 02/08/2012 | CN101546983B 马达驱动电路 A motor drive circuit |
| 02/08/2012 | CN101534091B 矿用隔爆兼本质安全型变频调速装置 Mine explosion-proof and intrinsically safe frequency control devices |
| 02/07/2012 | US8111026 Electric motor drive apparatus, hybrid vehicle with the same and stop control method of electric power converting device |
| 02/07/2012 | US8109103 Load driving device, outdoor unit of air conditioner, and driving method of load |
| 02/07/2012 | CA2653938C Power controller and vehicle equipped with power controller |
| 02/05/2012 | CA2745664A1 Multi-phase drive system |
| 02/02/2012 | WO2012014526A1 Control apparatus of ac rotating machine |
| 02/02/2012 | WO2012014443A1 Control apparatus for ac rotating machine |
| 02/02/2012 | US20120025749 Control system of three phase induction motor driver and field weakening control method thereof |
| 02/02/2012 | DE102011003745A1 Systeme und Verfahren zum Überwachen des Stromes in einem elektrischen Motor Systems and methods for monitoring the current in an electric motor |
| 02/02/2012 | CA2806515A1 Control apparatus for ac rotary machine |
| 02/02/2012 | CA2806317A1 Control apparatus for ac rotating machine |
| 02/01/2012 | EP2413497A1 Device and method for power-saving driving of device having same load pattern |
| 02/01/2012 | EP2413495A1 Semiconductor integrated circuit device |
| 02/01/2012 | EP2413494A1 Alternating-current rotary machine controller |
| 02/01/2012 | EP2413493A1 Rotary electric machine controller |
| 02/01/2012 | EP2413492A1 Device and method for rotating electric machine |
| 02/01/2012 | CN202135096U 三烧污泥池搅拌器调速控制结构 Three burning sludge tank stirrer speed control structure |
| 02/01/2012 | CN202135093U 一逆变桥拖动多台电机实现输入功率同时随负载和转速变化控制系统 An inverter bridge drag multiple motors to achieve simultaneous input power changes with the load and speed control systems |
| 02/01/2012 | CN102342018A Controller of electric motor |
| 02/01/2012 | CN102342017A Control Device For Electric Motor Drive Unit |
| 02/01/2012 | CN102342010A Leakage current reduction device |
| 02/01/2012 | CN102340281A Control method of rotational speed of torque motor |
| 02/01/2012 | CN102340280A Parallel power inverter motor drive system |
| 02/01/2012 | CN101665220B 起重机变频调速控制系统 Crane Frequency Control System |
| 02/01/2012 | CN101345511B 用于以连续电流模式运行z源变换器电感器的系统和方法 System and method for continuous current mode z source inverter inductors |
| 01/31/2012 | US8107241 Electric power conversion apparatus including cooling units |
| 01/31/2012 | US8106622 Control system for multiphase rotary machines |
| 01/31/2012 | US8106620 Vector control device for alternating-current electric motor |
| 01/31/2012 | US8106613 Brushless motor drive |
| 01/26/2012 | WO2012010087A1 Current-control method for use in high voltage inverter |
| 01/26/2012 | DE102011103884A1 System operating method, involves limiting rotation speed of drive in safe system state such that motor voltage is limited by control electronic unit to limiting value and monitored by superordinate computer |
| 01/26/2012 | DE102011051909A1 Leistungswandler für eine drehende elektrische Maschine Power converter for a rotating electric machine |
| 01/26/2012 | CA2805787A1 Method and apparatus for control of a synchronous permanent magnet motor, particularly over a long cable in a well |
| 01/25/2012 | EP2410653A1 Device for controlling a synchronous electric motor with a permanent magnet rotor |
| 01/25/2012 | EP2410651A1 Method for starting a permanent magnet single-phase synchronous electric motor and electronic device for implementing said method |
| 01/25/2012 | EP2409036A2 Induction motor torque control in a pumping system |
| 01/25/2012 | CN102334277A 半导体集成电路器件 The semiconductor integrated circuit device |
| 01/25/2012 | CN102332855A Motor control device for range hood |
| 01/25/2012 | CN101488700B Inverter and refrigeration cycle device |
| 01/24/2012 | US8102143 Electric drive unit |
| 01/24/2012 | US8102142 Double ended inverter system for a vehicle having two energy sources that exhibit different operating characteristics |
| 01/24/2012 | US8102141 Inverter device |
| 01/19/2012 | WO2012008381A1 Power conversion system |
| 01/19/2012 | US20120013287 Sensorless induction motor control device having function of correcting slip frequency of motor |
| 01/19/2012 | DE102011001259A1 Regelvorrichtung für eine drehende elektrische Maschine Control apparatus for a rotary electric machine |
| 01/18/2012 | EP2408103A1 Controller of ac rotating machine |
| 01/18/2012 | CN202121546U Digitalized frequency converter control system device |
| 01/18/2012 | CN202121545U Novel intelligent control power saving device |
| 01/18/2012 | CN202121544U Stepless speed regulation system for vacuum oil filtering machine |
| 01/18/2012 | CN202121541U Automatic voltage regulation electricity strealing preventive dragging system of oil pumping unit |
| 01/18/2012 | CN202121418U Explosion-proof variable frequency motor |
| 01/18/2012 | CN202120139U Speed control system for frequency-variable driving controllers |
| 01/18/2012 | CN202117904U Frequency conversion, energy conservation and speed regulation device for oil field water injection pump |
| 01/18/2012 | CN1939766B Power control apparatus, electrically powered vehicle and power control method of power system |
| 01/18/2012 | CN102326329A Ac motor control device and AC motor driving system |
| 01/18/2012 | CN102324890A Elevator door motor switch-in-place torque control method and elevator door motor device |
| 01/18/2012 | CN101882908B Speed limiting control method in torque mode of climb-assist device |
| 01/18/2012 | CN101667806B Space vector pulse width modulation controller of tri-level circuit and control method thereof |
| 01/12/2012 | WO2012006099A1 Open delta motor drive with integrated recharge |
| 01/12/2012 | WO2012004146A1 Rectifier system and method for operating a rectifier system |
| 01/12/2012 | US20120007533 Power converter and motor driving device using the same |
| 01/12/2012 | DE102011076503A1 Fahrzeug-Elektriksystem und Verfahren zur Steuerung eines Wechselrichters während Motorverzögerung Vehicle Electrical System and method for controlling an inverter during motor deceleration |
| 01/12/2012 | DE102010041988A1 Antriebssystem für ein batteriebetriebenes Fahrzeug A drive system for a battery powered vehicle |
| 01/12/2012 | DE102010031159A1 Method for starting internal combustion engine i.e. range extender, of hybrid-drive motor car, involves operating asynchronous machine as motor by inverter for accelerating internal combustion engine of motor car |
| 01/12/2012 | CA2746069A1 Method and apparatus of adaptively canceling a fundamental frequency of an analog signal |
| 01/11/2012 | EP2405568A1 Electronic power apparatus for controlling the movement of alternating current (AC) electric motors stopping such motors in a safe way |
| 01/11/2012 | EP1964257B1 Polyphase voltage converter control method |
| 01/11/2012 | CN202111663U AC variable frequency driver for detection |
| 01/11/2012 | CN202111662U Motor variable-frequency speed governing system |
| 01/11/2012 | CN202111661U Frequency conversion driving system of die cutting machine |
| 01/11/2012 | CN202111660U Frequency conversion control circuit of three phase high speed motor |
| 01/11/2012 | CN202111659U Electricity-saving device for measuring and controlling revolving speed of asynchronous motor |
| 01/11/2012 | CN202111658U Rotating speed control type frequency converter |
| 01/11/2012 | CN202111657U Speed regulating device of kiln head exhaust fan |
| 01/11/2012 | CN202111627U AC variable frequency driver |