Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217)
02/2010
02/09/2010CA2459652C Compressed air system utilizing a motor slip parameter
02/04/2010WO2010012681A1 Method for determining measured values in a system driven in clocked fashion
02/04/2010US20100027979 Motor controller and electric power tool having the same
02/04/2010US20100027978 Voltage regulated dc supply circuit for a wire feed drive system
02/04/2010US20100027170 Electric vehicle
02/04/2010US20100026224 Method And Device For Determining A Drive Force Produced By An Electric Motor
02/04/2010DE102008040929A1 Verfahren zur Messwertermittlung in einem getaktet angesteuerten System Method for determination of measured values ​​in a clocked driven system
02/04/2010DE102008040920A1 Method for controlling electric motor by pulse-width modulated control signals, involves generating control pulse with target-duty cycle and temporally varying pulse width and pulse spacing
02/04/2010DE102008040793A1 Motoransteuerschaltung für ein batteriebetriebenes Elektrowerkzeug Motor drive circuit for a battery-operated power tool
02/03/2010EP2149979A1 Method for determining measurement values in a synchronised controlled system
02/03/2010EP2149978A1 Method for determining measurement values in a synchronised controlled system
02/03/2010EP2149977A2 Engine control switch for a battery-operated electric tool
02/03/2010CN201398167Y 无线遥控变频器 Wireless remote drive
02/02/2010US7657161 Method of transition between controls for a ventilation system
02/02/2010US7656625 Disc apparatus
02/02/2010US7656113 Device of pulse width modulation type for load drive
02/02/2010US7656109 Trash can with power operated lid
02/02/2010US7654756 Actuator drive circuit and actuator device
02/02/2010CA2481614C System and method for bypassing a motor drive
01/2010
01/28/2010US20100019712 Electric driver unit
01/27/2010CN201393196Y Drive module for controlling industrial direct current motor by using an airplane model remote controller
01/27/2010CN100586002C Quenching device for a converter bridge of reverse feeding
01/26/2010US7653466 Control apparatus for electric vehicles
01/26/2010US7652446 Method for detecting and controlling output characteristics of a DC motor and a self-propelled apparatus using the same
01/26/2010US7652443 Method and system for controlling a power inverter in electric drives
01/26/2010US7652442 Electric tool switch mechanism
01/26/2010US7650760 Motor controlling device, compressor, air conditioner and refrigerator
01/21/2010US20100014843 Fan controlling circuit
01/21/2010US20100013423 Control circuitry of ceiling fan for controlling rotation direction and speed
01/20/2010EP2145384A2 Electric drive
01/20/2010CN100583585C Method and arrangement for monitoring a power output stage
01/19/2010CA2304294C Separately excited dc motor with boost and de-boost control
01/14/2010WO2010004971A1 Motor drive device
01/14/2010US20100007298 Method for modernizing a technical system and an appropriate drive element
01/13/2010EP2143198A2 Electric tool and device switch for an electric tool
01/13/2010EP2143197A1 Method and device for determining the motor constant of an electric motor
01/13/2010EP1446548B1 Method for matching the command issued of the direction of an electric motor in a closure installation or the like such as a roller shutter
01/12/2010US7646165 Converter circuit and motor driving apparatus
01/12/2010US7646158 Device for controlling opening/closing body for vehicle
01/07/2010US20100001674 Method for activating a drive system and drive system
01/07/2010DE102008040096A1 Hand-guided electric machine tool i.e. battery-driven screw driver, operating method, involves operating electric motor by applying motor voltage, and limiting motor current to current value that depends on information about maximum torque
01/06/2010CN201378698Y Direct current transmission combined cabinet
01/06/2010CN101622781A Brushed motor control with voltage boost for reverse and braking
01/06/2010CN101621273A Method for operating electric machine tool and drive unit of electric machine tool
01/05/2010US7643733 Control device for driving a brushless DC motor
01/05/2010US7642738 Power steering apparatus
12/2009
12/31/2009US20090324205 Pulse count control for brushed dc motor driven by pulse width modulation
12/31/2009US20090322473 Remote controlled dead bolt door locking system
12/31/2009US20090321166 Method for operating a hybrid drive for a vehicle
12/31/2009DE102008030461A1 Circuit arrangement for controlling electric motor of electro-motor driven auxiliary drive or load, has control electronics controlling relay arrangement, which exhibits relays that are arranged in parallel or in series with control paths
12/31/2009DE102008002724A1 Verfahren zur Erkennung des Drehwinkels und einer Reversierposition einer Getriebe-Antriebseinheit Method for detecting the angle of rotation and a reversing position one gear drive unit
12/31/2009DE10146091B4 Überlastsicherung für Elektromotoren und Verfahren zur Überlastsicherung von Elektromotoren Overload protection for electric motors and method for the overload protection of electric motors,
12/30/2009EP2137812A1 Method of controlling a motorized window treatment
12/30/2009CN201374673Y Driver and AC-DC switching circuit using same
12/30/2009CN101615878A Compensation control circuit of direct current motor
12/30/2009CN100576717C Vehicle back mirror device
12/30/2009CN100576211C Methods for operating an electromagnetic actuator
12/30/2009CN100576116C Adjusting method of DC motor speed PID controlled parameter adjusting system
12/30/2009CN100576114C Device of pulse width modulation type for load drive
12/29/2009CA2334674C Device with an electromotor
12/23/2009EP2136466A1 Medical infusion system with pulse width modulation and safety circuit
12/22/2009US7635960 System and methods for automatically moving access barriers initiated by mobile transmitter devices
12/22/2009CA2487835C Speed and fluid flow controller
12/17/2009WO2009150280A1 Control system for train doors and actuation method based on said system
12/17/2009US20090310948 Regulating device for regulating the voltage on a high-side load
12/17/2009DE102008026091A1 Speed proportional rectangular signal producing method for permanently excited direct current motor of power window drive for motor vehicle, involves adjusting resonant frequency of controllable frequency filter
12/17/2009DE102004050691B4 Antriebsvorrichtung für ein elektrisch betätigtes Fenster Drive device for an electrically operated window
12/16/2009EP2132869A1 Brushed motor control with voltage boost for reverse and braking
12/16/2009CN201365221Y Servo drive of intelligent high-power DC motor
12/16/2009CN101604169A Torsion control circuit of electric mallet type screw wrench
12/16/2009CN101603544A Linear compensation method of rotating speed of fan
12/15/2009US7633253 Control and monitoring arrangements for an aperture closure member
12/15/2009US7633250 Fan
12/15/2009US7633249 Polyphase current supplying circuit and driving apparatus
12/10/2009US20090304369 Drive and evaluation unit
12/10/2009US20090304368 Commutator motor comprising a device for controlling the angular position and rotational speed of the armature thereof
12/10/2009US20090302794 Torque control circuit for electrical motor
12/09/2009EP2130293A2 Method and device for detecting the rotation of a brush-operated d.c. motor
12/09/2009CN201360215Y Money counter-dedicated 220V brushed direct-current motor provided with magnet ring, controller, switch voltage regulator and shielding assembly
12/09/2009CN201358935Y Cooling fan speed adjusting circuit of electromagnetic oven
12/09/2009CN101599733A Phase closed loop control direct current motor speed regulating method
12/09/2009CN100568704C Apparatus and method for controlling motor in washing machine
12/08/2009US7630811 Automated manual transmission launch control
12/08/2009US7630616 Coil load driving circuit and optical disc device
12/08/2009US7629776 Control and power module for a rotating electrical machine
12/08/2009US7629762 Motor driving circuits
12/03/2009US20090295320 Method and Apparatus for Variation of a Rated Current
12/03/2009US20090295318 Motor and drive control system thereof
12/03/2009US20090295313 Rechargeable power tool, control unit and recording medium
12/03/2009DE102009001762A1 Zustandsspeichervorrichtung für ein bewegliches Teil State storage device for a movable part
12/02/2009EP2127824A2 Rechargeable power tool, control unit and program
12/02/2009EP2126639A1 Apparatus for adjusting an actuator with simplified drive
12/02/2009CN201355803Y Control device of battery-powered mower
12/02/2009CN201355802Y Drive circuit for automotive DC fan electromotor
12/02/2009CN101595631A Process and reinforcing means for producing reinforced porous or foamed concrete bodies and reinforcement holder frames for use for such a process
12/02/2009CN101594108A Resistance torsion control and battery discharge protection circuit of electric motor
12/02/2009CN100566126C Walk-type self-propelled snow removing machine
12/02/2009CN100565415C Fluid circulation pump for heating and conditioning systems and the like
12/01/2009US7626350 Motor drive apparatus and motor drive method
11/2009
11/26/2009DE102009020842A1 System zum Steuern der Geschwindigkeit eines Elektromotors in einem Kraftfahrzeug System for controlling the speed of an electric motor in a motor vehicle
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