Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217)
03/2008
03/19/2008CN201039058Y Brushless DC motor locking protection loop
03/19/2008CN201036866Y Hand-held electric tool
03/19/2008CN101146703A Optimal capturing of a dc-motor residual voltage
03/19/2008CN101143568A Displacement control system for a vehicle axle
03/19/2008CN100376076C MOS type FET and motor driving device having same and motor thereof
03/18/2008US7346272 Anti-trap protection detection based on comparing the duty cycle of a PWM control system
03/18/2008US7345444 Intermittent washer
03/18/2008US7345443 Motor control apparatus
03/18/2008CA2461177C Movable barrier operator
03/13/2008DE102006040660A1 Verfahren und Vorrichtung zur mehrfrequenten Ansteuerung eines Gleichstrommotors Method and apparatus for multi-frequency control of a DC motor
03/13/2008DE102006000439A1 Motor controlling method involves driving tool of battery driven machine tools, and continuous monitoring of motor current and battery voltage takes place and continuous comparison of battery voltage takes place with threshold value
03/13/2008DE102004017107B4 Verfahren zum geregelten Betreiben einer Webmaschine A method of operating a regulated loom
03/13/2008DE102004017106B4 Verfahren zum Bestimmen der kinetischen Energie einer Webmaschine A method for determining the kinetic energy of a weaving machine
03/12/2008CN101141108A DC motor bridge full thyristor speeder
03/12/2008CN101141107A Method for actuating a motor
03/12/2008CN101141106A Mirror apparatus for use in vehicles
03/12/2008CN101141104A Vehicle mirror device
03/12/2008CN101141070A Novel intelligent electric machine battery control system
03/11/2008US7342374 Automatic gate operator
03/11/2008US7342370 Electronic control system with torque and/or speed boost for motor vehicle seats
03/06/2008WO2008027874A2 Current limiting dc motor starter circuit
03/06/2008WO2008025237A1 Motor control device and its control method
03/06/2008WO2008025236A1 Cable controller and operation method thereof
03/06/2008WO2008025235A1 Motor control device and its control method
03/06/2008US20080056690 Motor control device
03/06/2008US20080056689 Computer housing temperature control device
03/06/2008US20080056688 Drive circuit for a sensored brushless DC motor
03/06/2008US20080056687 Control Apparatus For Vehicle
03/06/2008US20080054835 Method and apparatus for controlling motor for vehicles
03/06/2008US20080054832 Method of controlling a motor
03/06/2008US20080054831 Current limiting DC motor starter circuit
03/06/2008US20080054830 Microcontroller interface with hall element
03/06/2008DE202007017877U1 Motorregler für Modellelektromotoren Motor controller for model electric motors
03/06/2008DE102006000436A1 Method for controlling of propelled engine by battery involves determining current value of output voltage of battery and comparison with pre-determined threshold value
03/05/2008EP1895651A2 Method and device for multi-frequency actuation of a DC motor
03/05/2008EP1894767A1 Control apparatus for vehicle
03/05/2008CN101136604A Method and device for multi-frequency actuation of a DC motor
03/05/2008CN101136603A DC motor control method
03/05/2008CN100373762C Electric motor driver and driving method
03/04/2008US7339343 Method for correcting speed feedback in a motor
03/04/2008US7339337 Power plant
03/04/2008US7339336 Movable barrier operator auto-force setting method and apparatus
03/04/2008US7339333 Motor drive control apparatus, motor drive control method and program of the same
02/2008
02/28/2008US20080050101 Electric fan device and method of driving electric fan device
02/28/2008US20080050100 Controller for dc brushless motor integrated with a high voltage control system
02/28/2008US20080050099 Universal brushless dc motor
02/28/2008US20080048600 Circuit to momentarily increase the peak torque of a DC motor
02/28/2008US20080047974 Power tool and motor controller
02/27/2008EP1892825A2 Motor driving circuit
02/27/2008EP1390764B1 Method for determining the frequency of the current ripple in the armature current of a commutated d.c motor
02/27/2008CN101132164A Method for eliminating interference of exterior magnetic field to electric motor
02/27/2008CN101132162A Motor control device and control method thereof
02/27/2008CN101132161A Motor controller and control method thereof
02/26/2008US7336045 Speed regulator for a brushless dc motor
02/26/2008US7336044 Direct current motor control circuit
02/26/2008US7336043 Transistor matrix switched reluctance variable speed motor drive
02/21/2008US20080044165 Motor Drive and Cooler Employing It
02/21/2008US20080042607 Electric tool switch mechanism
02/21/2008US20080042604 System and method for controlling a motor using forced speed control
02/21/2008DE102006038127A1 Elektrokleingerät mit Ladezustandsanzeige Small electric device with battery indicator
02/21/2008DE102004049724B4 Sensor, Antriebskomponente und Antrieb Sensor, actuator and drive component
02/20/2008EP1889354A1 Electronic control unit for controlling external half-bridge end power stages and electromotive drive with electronic control unit
02/20/2008EP1590882B1 Method and control circuit for reducing line-bound disturbances in pulse-width modulated control of an electric motor
02/19/2008US7332884 Electric motor control strategies
02/19/2008US7331532 Acoustic noise reduction using fan speed control
02/19/2008CA2450324C Variable speed control of multiple motors
02/14/2008US20080040001 Vehicular steering system
02/14/2008US20080037962 Speed control system for a ceiling fan motor
02/14/2008US20080037961 System and method for switching control modes of spindle motor
02/14/2008US20080037960 Quenching Device for a Converter Bridge with Line Regeneration
02/14/2008US20080036407 Load driving device and electrical apparatus using the same
02/14/2008US20080036406 Open/close member control apparatus
02/14/2008DE19921045B4 Brenner zur Verbrennung von flüssigen und/oder gasförmigen Brennstoffen in Feuerungsanlagen Burner for combustion of liquid and / or gaseous fuels in combustion plants
02/13/2008EP1390763B1 Method for correcting the determination of the rotational position of a commutated d.c. motor drive shaft
02/13/2008CN201020412Y Minitype centrifugal machine
02/13/2008CN101124720A Printer and DC motor rotational speed controller
02/13/2008CN101124719A Sensorless control of two-phase brushless DC motor
02/12/2008US7330779 Method and system for improving pump efficiency and productivity under power disturbance conditions
02/07/2008US20080031616 Shutter Actuator Drive Circuit and Shutter Actuator Device
02/07/2008US20080030158 Centrifugal Fan
02/07/2008US20080030157 High steps brushless dc (bldc) motor
02/07/2008US20080030156 Powered panel moving system
02/07/2008DE19650373B4 Regelschaltung für ein Scheibenwischersystem eines Fahrzeuges Control circuit for a windshield wiper system of a vehicle
02/07/2008CA2657624A1 Overload prevention device for permanent magnet dc motors
02/06/2008EP1883555A2 Low voltage electrical vehicle propulsion system using double layer capacitors
02/06/2008CN201018442Y Electronic clutch device of electric automobile
02/06/2008CN100367659C Switch drive circuit of DC fan motor
02/06/2008CN100367658C Closed loop control of linear vibration actuator
02/06/2008CN100367657C System and method for determining the resonant frequency of an oscillating appliance, in particular a power toothbrush
02/05/2008US7327111 System and method for parallel control of variable frequency drives
02/05/2008US7327104 Control apparatus for electrically-powered vehicle
01/2008
01/31/2008WO2008014112A2 Electric motor
01/31/2008US20080025709 Systems and methods for driving a load
01/31/2008US20080024084 Linear electric motor controller and system for providing linear control
01/31/2008US20080024079 Motor driving apparatus
01/31/2008US20080024044 Electric Motor
01/31/2008US20080022783 Electrical Machine and Method for Adjusting an Axial Spacing of the Electrical Machine
01/31/2008DE102007034654A1 Electrical blower device e.g. cooling fan, for vehicle, has control unit that controls switching on/switching off process of control switch that is adapted to control motor current that is supplied to blower motor, by pulse width modulation
01/31/2008DE102006033712A1 Steuerung für elektrisch verstellbare Möbel Control for electrically adjustable furniture
01/30/2008CN101115516A A method for ensuring constant speed of a motor in an injection device
1 ... 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 ... 103