Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217)
09/2009
09/01/2009US7583047 Quenching device for a converter bridge with line regeneration
08/2009
08/27/2009WO2009104713A1 Motor load control device
08/27/2009WO2009103153A1 Battery powered mechanized raise climbing system
08/27/2009US20090212733 To Obtain the Three-Phase Current via adjusting width of pulses with Single DC-Link Current Sensor
08/27/2009CA2714974A1 Battery powered mechanized raise climbing system
08/26/2009EP1459434B1 Circuit arrangement for operating an electrical machine
08/26/2009CN201297267Y Control device for blower of automobile air conditioner
08/26/2009CN201296185Y Power-assistant motor controlling device of electric power-assistant bicycle
08/26/2009CN201296184Y Chopper velocity-modulation control system for DC wiring standard-gauge motor tram
08/26/2009CN101517886A Motor driving apparatus
08/26/2009CN101515745A Series excited motor and speed regulation and control method thereof
08/26/2009CN100533929C Reciprocating motor
08/25/2009US7580617 Electric fan device and method of driving electric fan device
08/25/2009US7579800 Motor control method and device thereof
08/20/2009US20090208192 Device for controlling rotation speed of computer fan
08/20/2009US20090206842 Method and apparatus for determining whether a cooling device in a computer system is responsive to control signals
08/20/2009US20090206784 Safety Device for Power Window
08/19/2009CN201294476Y Converter for trigger signal of DC speed-regulating device
08/19/2009CN101510746A Method for recognizing control object parameter based on DC motor speed control
08/18/2009US7576508 Gas turbine engine starter generator with AC generator and DC motor modes
08/18/2009US7576502 Method and apparatus for closing a powered closure of a vehicle
08/13/2009US20090200976 Parking brake control device
08/13/2009US20090200975 Motor drive apparatus and method for electric power steering system
08/13/2009DE102008000277A1 Method for controlling electric motor, involves producing clocked phase voltage, and operating switching element in initial mode by low amplitude of current profile in particular time segment
08/12/2009EP1297608B1 Linear actuator control structure
08/12/2009CN101507098A Method for determining the rotation speed of a starter
08/12/2009CN101505128A Shift control method for multi-stage motor
08/11/2009US7573219 Drive belt slip detection
08/11/2009US7573214 Method and apparatus for spindle motor control
08/06/2009WO2009097079A1 Method and system for multiphase current sensing
08/06/2009US20090195204 Power Tool Having Motor Speed Monitor
08/06/2009DE10297711B4 Geschwindigkeitsregelungsvorrichtung für einen Motor Speed ​​control apparatus for an engine
08/06/2009DE102005022127B4 Drosselklappen-Steuersystem und Drosselklappen-Steuerverfahren Throttle valve control system and throttle control method
08/06/2009CA2713403A1 Method and system for multiphase current sensing
08/05/2009CN201286076Y Motor rotation compensation apparatus
08/05/2009CN101501952A Overload prevention device for permanent magnet DC motors
08/05/2009CN101499763A Controlling method for electric tool and electric tool executing the controlling method
08/05/2009CN101499762A Electric motor drive system and electric motor control method
08/05/2009CN101497188A Power tool having motor speed monitor
08/05/2009CN100525064C Digital intelligent controlling module for DC electric motor
08/05/2009CN100525063C Error detection method and motor control device
08/04/2009US7570000 Control drive circuit for electric power tool
08/04/2009CA2548678C Device for power adjustment by phase control and method for reduction of harmonic waves
07/2009
07/30/2009WO2009094541A2 Generating electromagnetic forces with flux feedback control
07/30/2009WO2009092273A1 Winch motor control system and its control method
07/30/2009US20090190906 Motor system with reduced common-mode noise
07/30/2009US20090190905 Regulator Circuit for an Electric Motor, Provided with a Microprocessor
07/30/2009US20090190904 Optimized Determination of the After-Run Voltage in DC Motors
07/30/2009US20090190903 Motor controller and vehicular steering system using said motor controller
07/30/2009US20090189559 Electric motor protection system
07/29/2009EP1960881B1 Device for safely operating a flight control actuator of an aircraft
07/29/2009EP1208638B1 Method for detecting the rotational position of the drive shaft of a dc motor
07/29/2009CN201282442Y Electric bottle opener control power source
07/29/2009CN100521502C Control device of motor driven by binding machine
07/29/2009CN100521501C Torsion management method of mixed power electric motor
07/29/2009CN100521500C Coil load driving circuit and optical disc device
07/28/2009US7567749 Motor control circuit
07/28/2009US7567051 Position shift control apparatus ensuring durability and operation accuracy thereof
07/28/2009US7567050 Arrangement for operating an electrically adjustable item of furniture for sitting and/or lying upon
07/28/2009US7567049 Fluid flow control for fluid handling systems
07/28/2009US7567045 Method and arrangement for control of direct current motor
07/22/2009EP2081290A2 Electric wheelchair drive
07/22/2009CN201278502Y Speed regulation apparatus for DC motor
07/22/2009CN201278501Y Diode follow current apparatus for electric vehicle controller
07/22/2009CN100515820C Electric car control device
07/21/2009US7564208 Electronically controlled electric motor
07/21/2009US7564207 Peak hold circuit, motor drive control circuit having the peak hold circuit and motor apparatus having the motor drive control circuit
07/16/2009WO2009052165A3 Bus disturbance regulator
07/16/2009US20090179601 Transition wiring system for multiple traction generators
07/15/2009CN101483404A Intelligent motor controller
07/14/2009US7560886 Motor controlling device for mounting on vehicle
07/14/2009US7559871 Power output apparatus, motor vehicle equipped with power output apparatus, and control method of power output apparatus
07/09/2009WO2009083313A1 Motor variable detector and method for providing a speed detection signal and/or a torque detection signal
07/09/2009US20090175602 Circuit for controlling rotation speed of computer fan
07/09/2009US20090175601 Motor controller and motor control method
07/08/2009EP2077614A2 Servo motor controller
07/08/2009CN201270491Y Three-phase complete controlling SCR DC servo speed regulation apparatus
07/08/2009CN201270490Y Energy saving control apparatus for oil pumping machine large power DC brushless motor
07/08/2009CN101478282A Method for realizing high voltage frequency transformer main control system by built-in dual-port RAM of FPGA
07/08/2009CN100511965C Motor control apparatus, power steering apparatus and brake control apparatus
07/07/2009US7557527 Electrical power converter and control method
07/02/2009WO2009082068A2 Method for controlling motor of air conditioner
07/02/2009WO2009082066A2 Motor controller of air conditioner
07/02/2009WO2009082065A2 Motor controller of air conditioner
07/02/2009WO2009052808A3 Circuit arrangement for a power tool
07/02/2009US20090169189 Motor control apparatus
07/02/2009US20090169188 Apparatus and method for fan auto-detection
07/02/2009US20090167230 Motor driving circuit and motor driving method
07/02/2009US20090167228 Apparatus, system, and method for controlling speed of a cooling fan
07/02/2009DE102007062721A1 Motorkenngrößen-Detektor und Verfahren zum Bereitstellen eines Drehzahl-Detektionssignals und/oder eines Drehmoment-Detektionssignals Engine characteristics detector and method for providing a speed detection signal and / or a torque detection signal
07/01/2009EP2073679A1 Control arrangement for a propulsion unit for a self-propelled floor care appliance
07/01/2009EP1296444A9 Driver device for sliding a panel of a vehicle
07/01/2009EP1262014B1 Arrangement for supplying a user, especially a d.c. motor, that consumes power in a non-continuous manner from a d.c. system
07/01/2009CN100508362C A control method of the DC motor
06/2009
06/30/2009US7554281 Synchronous machine control apparatus
06/25/2009US20090162039 Circuit for controlling rotation speed of computer fan
06/25/2009US20090162038 Motor characteristics acquiring apparatus, control apparatus using the acquired motor characteristics, and power window control apparatus
06/25/2009US20090160386 Electric drive device control system and method
06/25/2009US20090160385 Motor controller
06/25/2009US20090160374 Motor control device
1 ... 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 ... 103