| 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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| 09/10/2008 | CN201113906Y Alternating-current hoister high voltage frequency conversion electric control device |
| 09/10/2008 | CN201113905Y Asynchronous motor with self-possessed frequency conversion controller |
| 09/10/2008 | CN201113904Y Capacitance speed governor |
| 09/10/2008 | CN201113903Y Paper crusher motor rotate speed control system |
| 09/10/2008 | CN201113902Y Device for wwitching alternating-current wire winding type asynchronous motor speed governing mode |
| 09/10/2008 | CN201113892Y Spindle breaker power controller |
| 09/10/2008 | CN201113865Y Open type glue-smelting machine circuit apparatus |
| 09/10/2008 | CN201113778Y Frequency changer |
| 09/10/2008 | CN201113483Y Frequency converter standby electric power supply system |
| 09/10/2008 | CN201113439Y Large power frequency converter power frequency and variable frequency automatic switching device |
| 09/10/2008 | CN201113438Y Integrated power save protector constituted by four types of electricity economizer |
| 09/10/2008 | CN201113437Y Integrated power save protector constituted by four types of electricity economizer |
| 09/10/2008 | CN201113436Y Integrated power save protector constituted by four types of electricity economizer |
| 09/10/2008 | CN201113435Y Integrated power save protector constituted by four types of electricity economizer |
| 09/10/2008 | CN201113434Y Integrated power save protector constituted by three types of electricity economizer |
| 09/10/2008 | CN201113433Y Integrated power save protector constituted by three types of electricity economizer |
| 09/10/2008 | CN201113432Y Integrated power save protector constituted by three types of electricity economizer |
| 09/10/2008 | CN201113431Y Integrated power save protector constituted by three types of electricity economizer |
| 09/10/2008 | CN201113430Y Integrated power save protector constituted by three types of electricity economizer |
| 09/10/2008 | CN201113429Y Integrated power save protector constituted by three types of electricity economizer |
| 09/10/2008 | CN201113428Y Integrated power save protector constituted by three types of electricity economizer |
| 09/10/2008 | CN201113249Y Main loop electricity obtaining device for wire drawing bench control system |
| 09/10/2008 | CN101262201A Closed control system for PCB driller high-speed motor |
| 09/10/2008 | CN101262200A Multi-frequency converter speed-adjusting system for low-voltage high-power multi-branch AC motor |
| 09/10/2008 | CN101262192A A reverser for driving four electromotor asynchronization and realizing rotor frequency conversion speed-adjusting system |
| 09/10/2008 | CN100418297C Power output device and vehicle using the same |
| 09/10/2008 | CN100417812C Apparatus and method for controlling operation of reciprocating compressor |
| 09/09/2008 | US7423401 AC rotary machine constant measuring apparatus for measuring constants of stationary AC rotary machine |
| 09/09/2008 | CA2254800C Electric motor control system |
| 09/04/2008 | WO2008105433A1 Induction motor vector controlling device and method |
| 09/04/2008 | US20080211450 Rotating machinery controller |
| 09/04/2008 | US20080211449 Multiphase Current Supplying Circuit, Driving Apparatus, Compressor And Air Conditioner |
| 09/04/2008 | DE102007010643A1 Electrical linear motor has stator and stator movably arranges rotor along straight moving direction, and current flows through stator coils, which loads with alternating current voltage of certain frequency |
| 09/03/2008 | EP1965489A1 Motor driving device and car provided with the same |
| 09/03/2008 | EP1965083A1 Hydraulic unit and method of controlling speed of motor in hydraulic unit |
| 09/03/2008 | EP1964257A2 Polyphase voltage converter control method |
| 09/03/2008 | EP1964256A2 Method for controlling a polyphase voltage inverter |
| 09/03/2008 | EP1540806A4 Global closed loop control system with dv/dt control and emi/switching loss reduction |
| 09/03/2008 | CN201110967Y Blast furnace stock rod automatic frequency conversion control device |
| 09/03/2008 | CN201109846Y Stepless transmission of sewing machine motor |
| 09/03/2008 | CN101257280A Stepless speed regulating electric fan |
| 09/03/2008 | CN101257279A Motor drive device |
| 09/03/2008 | CN101257270A Method and device for controlling motor, and image forming apparatus |
| 09/03/2008 | CN101257211A Circuit for preventing powered on moment impact in frequency converting air conditioner |
| 09/03/2008 | CN101256415A Actiyator for feeder-carrier |
| 09/03/2008 | CN101254762A Electric power service vehicle |
| 09/03/2008 | CN100417011C High-voltage variable frequency speed regulating method and apparatus thereof based on alph-beta current component direct-filling |
| 09/03/2008 | CN100417004C Motor controlling equipment and washer and dryer using the same |
| 09/03/2008 | CN100417001C Equipment and method for controlling rotating speed of synchronous magnetic motor |
| 09/03/2008 | CN100416999C Detection device |
| 09/03/2008 | CN100416282C Virtual detector for variable frequency speed regulator |
| 09/02/2008 | US7420345 Circuit for driving an appliance for treating laundry |
| 08/28/2008 | US20080204959 Method for fault handling in a converter circuit for wiring of three voltage levels |
| 08/28/2008 | US20080203964 Method and device for controlling motor, and image forming apparatus |
| 08/28/2008 | US20080203962 Apparatus and method for driving synchronous motor |
| 08/28/2008 | US20080203953 Control bandwidth for cost effective ac motor drives in aerospace applications using two dsp devices with dissimilar redundant inter-processor communication link |
| 08/28/2008 | US20080203952 Electronic Control Unit For Controlling External Half-Bridge Power Output Stages and an Electric Motor Operated Drive With Electronic Control Unit |
| 08/28/2008 | DE102007009604A1 Household device i.e. dishwasher, has inverter attached to electronically commutated motor or arranged in motor proximity, and supply unit spatially disconnected from motor and from inverter |
| 08/28/2008 | CA2615674A1 Integrated-inverter electric compressor |
| 08/27/2008 | EP1961110A1 Control device and corresponding control method for a boost converter in a motor drive system |
| 08/27/2008 | EP1112196B1 Method for controlling a power drive system |
| 08/27/2008 | CN201106668Y Speed-changing eccentric wheel transmission mechanism |
| 08/27/2008 | CN101252339A Polyphase electric machine variable frequency speed regulator |
| 08/27/2008 | CN101252338A High power multi-bridge arm frequency converter |
| 08/27/2008 | CN101252337A Reduction of subharmonic oscillation at high frequency operation of a power inverter |
| 08/27/2008 | CN101252335A Optimizing method for producing polygon magnetic linkage track |
| 08/27/2008 | CN101252323A Method and apparatus to reduce PWM voltage distortion in electric drives |
| 08/27/2008 | CN100414833C Apparatus for controlling speed of fan motor of air-conditioner |
| 08/26/2008 | US7417842 Apparatus for power conversion in electric rolling stock |
| 08/26/2008 | US7417393 Load driver capable of suppressing overcurrent |
| 08/21/2008 | WO2008099953A1 Drive force generation system, vehicle using the system, and method for controlling the system |
| 08/21/2008 | WO2008099049A1 Apparatus and method for controlling the motor power |
| 08/21/2008 | WO2008098894A1 Power plant comprising a consumer and method for operating said power plant |
| 08/21/2008 | WO2008063612A3 Electric power generation system with multiple generators and/or inverters |
| 08/21/2008 | US20080197800 Reduction of subharmonic oscillation at high frequency operation of a power inverter |
| 08/21/2008 | US20080197799 Motor control device |
| 08/21/2008 | US20080197793 Control of an electrical machine |
| 08/21/2008 | DE102007017296A1 Method for operating electrical machine, involves determining equal input current of control device, which is assigned to electrical machine by observer depending on effective power balancing of electrical machine |
| 08/20/2008 | CN201104351Y DC frequency converting air-conditioner compressor driving circuit |
| 08/20/2008 | CN101247106A Novel high stability sinusoidal wave gyro motor driving power supply |
| 08/20/2008 | CN101247105A Capacity-expanding main circuit of railway train AC traction electric motor |
| 08/20/2008 | CN101247103A Motor control device |
| 08/20/2008 | CN100413209C Electronic four-wheel drive control |
| 08/20/2008 | CN100413208C Electric motor driving system, electric four-wheel drive vehicle, and hybrid vehicle |
| 08/20/2008 | CN100413186C Permanent synchronous motor driving system and its test method |
| 08/19/2008 | US7415072 Drive control for an electric drive with a secure electrical separation of power element and control element |
| 08/19/2008 | US7414377 System and method for automatic current limit control |
| 08/14/2008 | WO2008096523A1 Inverter control device and ac power control device using the inverter control device |
| 08/14/2008 | US20080191660 Method and device for controlling a three-phase machine having several phase windings, which can be controlled by means of pulse width modulation |
| 08/14/2008 | US20080191658 Method for Feeding an Operating Motor of a Rolling Shutter and a Device for a Driven Rolling Shutter |
| 08/14/2008 | US20080191656 Synchronous Machine Control Apparatus |
| 08/14/2008 | DE102007006154A1 Motor control device for controlling motor by alternating current-cycloconverter, has current measuring device for measuring motor currents |
| 08/13/2008 | CN100411297C Motor drive inverter control apparatus |
| 08/13/2008 | CN100411292C Power inverter |
| 08/13/2008 | CN100411284C Space vector PWM modulator for permanent magnet motor drive |
| 08/12/2008 | US7411369 Phase current detection method, inverter control method, motor control method and apparatus for carrying out these methods |
| 08/07/2008 | WO2008093485A1 Motor control device |
| 08/07/2008 | US20080185987 Integrated Circuit For Driving Motor |
| 08/07/2008 | US20080185986 Low noise heating, ventilating and/or air conditioning (HVAC) systems |
| 08/07/2008 | DE102007004094A1 Verfahren und Vorrichtung zur Steuerung einer mittels Pulsweitenmodulation steuerbaren Drehstrommaschine mit mehreren Phasenwicklungen Method and apparatus for controlling a controllable by means of pulse width modulation three-phase machine with a plurality of phase windings |