| Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
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| 02/19/2009 | WO2009003703A3 Driving device for an electric motor |
| 02/19/2009 | US20090047006 Fan system and motor control device |
| 02/19/2009 | US20090047005 Driving apparatus for a ceiling fan |
| 02/19/2009 | US20090045764 Driver For an Inductive Load |
| 02/19/2009 | US20090045762 Motor drive circuit, method, and cooling device using the same |
| 02/18/2009 | EP1349711B1 Speed controller for flywheel operated hand tool |
| 02/18/2009 | CN101369793A Multi-machine synchronous operation DC speed control system |
| 02/18/2009 | CN100463355C Direct torque brushless DC servo control system and its working method |
| 02/18/2009 | CN100463353C Motor speed control circuit |
| 02/18/2009 | CN100463352C Motor and drive control system thereof |
| 02/17/2009 | US7492114 Electric vehicle drive control device and control method therefor |
| 02/12/2009 | WO2009020737A2 A motor controller |
| 02/12/2009 | US20090041440 Document reading apparatus, document reading method, and program for reading document |
| 02/12/2009 | US20090039813 Method and apparatus for controlling electric motor |
| 02/12/2009 | US20090039811 Inhibitors of HSP90 |
| 02/12/2009 | US20090039805 Changeover device of pull cord control and wireless remote control for a dc brushless-motor ceiling fan |
| 02/11/2009 | EP1486398B1 Electric power steering device control apparatus |
| 02/10/2009 | US7489856 Electrical device for automatically adjusting operating speed of a tool |
| 02/10/2009 | US7489094 Method and apparatus for quiet fan speed control |
| 02/10/2009 | US7489055 Linear motor and linear compressor using the same |
| 02/05/2009 | WO2009016468A2 Pump control apparatus and brake control system |
| 02/05/2009 | US20090034943 Control circuit for fan operating |
| 02/05/2009 | US20090033264 Method and device for determining a gradient-limited cumulative setpoint torque from a setpoint torque of a closed-loop speed control |
| 02/04/2009 | EP1240711B1 Method and system for programming a motor controller |
| 02/04/2009 | CN101359890A Rectified AC power supply DC electric fan |
| 02/04/2009 | CN101357596A System for using a multi-phase motor with a double-ended inverter system |
| 02/04/2009 | CN100459410C Control system, observer and control method of induction motor without speed sensor |
| 02/04/2009 | CN100458632C Control circuit for a cooling fan |
| 02/03/2009 | US7486489 System and method for speed control and stall protection combination for electric motors such as in engine cooling applications |
| 02/03/2009 | US7486042 Component position determination circuit using a brushless DC motor commutation sensor |
| 02/03/2009 | US7486040 Circuit to momentarily increase the peak torque of a DC motor |
| 02/03/2009 | US7486035 Power output apparatus and vehicle including such power output apparatus |
| 01/29/2009 | US20090028532 Control device for driving a brushless dc motor |
| 01/29/2009 | US20090027853 Tangential drive module assembly and method of assembly for airflow induction |
| 01/29/2009 | US20090027017 Circuit arrangement for the regulation of a current through a load |
| 01/29/2009 | US20090026999 Motor controller |
| 01/29/2009 | US20090026990 Method and device for driving a brushless motor with voltage waveform predisposed for a progressive and automatic switching from a three-phase sinusoidal driving to a square wave three-phase driving |
| 01/29/2009 | US20090025170 Dual Mode Motor Controller For a Vehicle Window Wiper System |
| 01/28/2009 | CN101356722A Motor drive circuit, motor drive device, load drive device, electronic device, and pulse modulation method |
| 01/28/2009 | CN101355336A Load drive control circuit |
| 01/28/2009 | CN101355335A Closed-cycle control system for digital dynamic force moment of DC motor |
| 01/28/2009 | CN100456625C Inductive load control device |
| 01/28/2009 | CN100456624C Motor driver and magnetic disc apparatus |
| 01/27/2009 | US7483249 Overvoltage protective device for DC motor |
| 01/27/2009 | US7482770 Methods and systems for providing PWM control signals to an electronically commutated motor |
| 01/27/2009 | US7481506 Printing apparatus and printing apparatus control method |
| 01/27/2009 | US7481140 Detection systems for power equipment |
| 01/22/2009 | US20090022483 Device and method for driving a single phase motor |
| 01/22/2009 | US20090021203 Method and device for controlling and monitoring a hybrid four-wheel drive vehicle |
| 01/22/2009 | US20090021202 Motor control circuit and method with mechanical angle reconstruction |
| 01/22/2009 | US20090021201 Constant-current and constant-voltage driving circuit of dcbl fan motor with low acoustic noise and controllable speed |
| 01/22/2009 | US20090021200 Load Driving Apparatus, Vehicle Incorporating the Same, and Control Method for Load Driving Apparatus |
| 01/22/2009 | US20090021193 DC Motor with a Rotation Direction Switching Circuit |
| 01/22/2009 | DE102007033802A1 Rotation direction switching circuit for direct current motor, has direct current supply whose polarity is changed to perform alternating switching on and switching off of two power semiconductor elements i.e. MOSFET |
| 01/21/2009 | EP1312153B1 Wind power plant |
| 01/21/2009 | CN201185402Y Single-phase brushless non-Hall DC electric machine controller without field effect tube |
| 01/21/2009 | CN101350588A Electric clippers circuit |
| 01/21/2009 | CN101350587A Electric clippers circuit |
| 01/21/2009 | CN100454752C Motor control apparatus |
| 01/20/2009 | US7479747 Storage device and motor control device |
| 01/20/2009 | US7479722 Relative drive device |
| 01/15/2009 | WO2009007175A2 Electric motor commutator and method for driving an electric motor commutator |
| 01/15/2009 | US20090016044 Integrated dc circuit for a ceiling fan combined with a lamp |
| 01/15/2009 | DE19901708B4 Drehzahlgeregelter Elektromotor ohne Motorstrombegrenzung, insbesondere drehzahlgeregelter Brennermotor eines Kraftfahrzeug-Heizgerätes Speed-controlled electric motor without motor current limit, in particular speed-controlled burner engine of a motor vehicle heater |
| 01/14/2009 | CN101345506A Speed-regulation start/stop brake controller of special DC motor for bill counter |
| 01/14/2009 | CN100452636C Motor driver and magnetic disc apparatus |
| 01/14/2009 | CN100451907C Current cutoff circuit and electric steering wheel lock |
| 01/13/2009 | US7477027 Method of removing foreign particles from heat transfer surfaces of heat sinks |
| 01/08/2009 | WO2009003703A2 Driving device for an electric motor |
| 01/08/2009 | US20090009122 Fan motor speed control circuit, fan apparatus, and electronic apparatus |
| 01/08/2009 | US20090009121 Method for Measuring a Motor Current |
| 01/08/2009 | US20090009113 Digital control of motor drives |
| 01/08/2009 | US20090009112 Drive Device for an Adjusting Device for Adjusting a Vehicle Part and Method for Operating a Drive Device |
| 01/08/2009 | US20090009108 Motor driver circuit, control method thereof, and electronic apparatus |
| 01/08/2009 | DE102008030813A1 Ansteuereinrichtung für einen Elektromotor The drive device for an electric motor |
| 01/08/2009 | DE102007031548A1 Elektromotor-Kommutator und Verfahren zum Ansteuern eines Elektromotor-Kommutators Electric motor commutator and method for driving an electric motor commutator |
| 01/08/2009 | DE102007031327A1 Direct current motor speed controlling method for e.g. automobile, involves limiting electrical power, where power is moved into winding provided in region by FET that is operated at resistance region |
| 01/07/2009 | EP2012426A2 Inverter drive and heat pump water heater |
| 01/07/2009 | CN201178394Y DC motor controlling circuit |
| 01/07/2009 | CN100449932C Power module and electric transportation apparatus incorporating the same |
| 01/06/2009 | US7474071 Electric motor regulation with controlled error intercept |
| 01/06/2009 | US7474070 Electric power steering apparatus |
| 01/06/2009 | US7474069 Circuit for using the sign transitions of a motor phase and a motor phase back EMF currents to control PWM |
| 01/06/2009 | US7474068 Position detection and external driver multiplexing system for DC motors |
| 01/06/2009 | US7474067 Electric power steering system |
| 01/06/2009 | US7474065 Controlling an electric motor having multiple oscillatory elements |
| 01/02/2009 | DE102008027743A1 Steuervorrichtung und Steuerverfahren Control apparatus and control method |
| 01/01/2009 | US20090003806 Method and circuit for controlling rotation speed of computer fan |
| 01/01/2009 | US20090001966 Motor system employing analog encoded hall effect sensor position information for reduced wiring |
| 01/01/2009 | US20090001918 Transmission device |
| 01/01/2009 | US20090001916 Motor controlling device and method tehreof |
| 01/01/2009 | US20090001911 Conduction angle control of a switched reluctance generator |
| 12/31/2008 | WO2009000579A2 Method and device for detecting the rotation direction of a drive unit |
| 12/31/2008 | WO2009000234A1 Apparatus for sensorless positioning with signal amplifier |
| 12/31/2008 | EP1698040A4 Switched dc electrical machine |
| 12/31/2008 | CN100448150C Electronic control unit, electric power-assisted steering device and transmission ratio-variable steering unit |
| 12/31/2008 | CN100446934C Electric screwdriver and a controller thereof |
| 12/25/2008 | US20080317446 Electronic module and arrangement for signal transmission with the former |
| 12/25/2008 | US20080317445 Motor Speed Control Circuit |
| 12/25/2008 | US20080317444 Motor driving device |