Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217)
09/2008
09/10/2008CN101262197A Motor drive device and electric apparatus using the same
09/09/2008US7423399 Apparatus, and associated method, for controlling the repetition rate of an intermittent windshield wiper
09/09/2008US7423397 Electric power steering device
09/09/2008US7423396 Hall sensor alignment for BLDC motor
09/09/2008US7422089 Drive unit for an elevator
09/04/2008WO2008105333A1 Actuator voltage control method
09/04/2008US20080211433 Vehicle Driving System
09/04/2008DE19735022B4 Verfahren zur Ermittlung der Wirkleistung von Asynchron-Elektromotoren Method for determining the active power of asynchronous electric motors
09/03/2008EP1964253A1 Improvements to tuning dc brushless motors
09/03/2008CN101257273A DC electric machine drive apparatus with power supply by second lithium batteries
09/03/2008CN101256910A Switch of electric tool and electric tool using the switch
09/03/2008CN100417007C Semiconductor device control apparatus and method
09/03/2008CN100417006C DC/DC bridge for controlling a direct-current load
09/03/2008CN100417004C Motor controlling equipment and washer and dryer using the same
09/02/2008US7421323 Automated vehicle battery protection with programmable load shedding and engine speed control
09/02/2008US7421301 Speed-variable maximum delay clamping when using variable-delay random PWM switching
09/02/2008US7421193 Digital motor control system and method
09/02/2008US7420347 System and method for using a capacitive door edge sensor
09/02/2008US7420341 Power tool and motor controller
08/2008
08/28/2008US20080204491 Motor driving device
08/27/2008EP1961109A2 Control and protection methodologies for a motor control module
08/27/2008EP1960881A1 Device for safely operating a flight control actuator of an aircraft
08/27/2008CN100414802C Motor control equipment
08/27/2008CA2622040A1 Controlling torsional shaft oscillation
08/26/2008US7417392 Electronic line shaft with phased lock loop filtering and predicting
08/21/2008WO2008016744A3 Overload prevention device for permanent magnet dc motors
08/21/2008US20080199159 Fan motor controller
08/21/2008US20080197796 System and method for controlling electric drive systems
08/21/2008DE10212064B4 Betriebssteuerung für eine Handwerkzeugmaschine Operating control for a hand tool
08/20/2008CN101247100A Electric tool control method and electric tool using the same
08/19/2008US7414953 Memory having a layer with electrical conductivity anisotropy
08/19/2008US7414425 Damping control in a three-phase motor with a single current sensor
08/19/2008US7414377 System and method for automatic current limit control
08/19/2008US7414375 Fan voltage regulation control device
08/19/2008US7414326 Regulator system for alternator
08/19/2008CA2411627C Electrically operated power steering device
08/14/2008WO2008095750A1 Apparatus for adjusting an actuator with simplified drive
08/14/2008US20080191660 Method and device for controlling a three-phase machine having several phase windings, which can be controlled by means of pulse width modulation
08/14/2008US20080191651 Apparatus and Process For Controlling and Adjusting the Operating of Electric Motor Actuated Devices
08/14/2008US20080191648 Closed Loop Control Of Linear Vibration Actuator
08/14/2008DE10307997B4 Antriebssteuereinrichtung für einen selbstgeführten Stromrichter Drive control device for a self-commutated converter
08/13/2008EP1955434A1 Device for supplying pulse width-modulated output pulses for the motor of a fan
08/13/2008CN100411297C Motor drive inverter control apparatus
08/12/2008US7412156 Brushless DC motor driver circuit capable of reducing vibration or shock noise and method thereof
08/12/2008US7411367 Full bridge circuit and DC motor capable of fixing output voltage and avoiding reverse current
08/12/2008US7411366 Electric power-assist system for manually-operated vehicle
08/12/2008US7411363 Conservation of electrical energy and electro-magnetic power in motor, generator, and product components
08/12/2008US7411309 Control system for doubly fed induction generator
08/07/2008WO2008064759A8 High pressure cleaning device, and a method for varying the motor power thereof
08/07/2008US20080187298 VSD Control
08/07/2008DE19903217B4 Wegbegrenzerschaltung für einen Objektivantrieb Wegbegrenzerschaltung for a lens drive
08/06/2008EP1954039A2 Flat display device
08/06/2008CN201097198Y Machine tool turning feeding and speed-adjusting circuit
08/06/2008CN201097183Y An electronic module controlled water eliminator motor
08/06/2008CN101238637A Electronic control unit for controlling external half-bridge end power stages and electromotive drive with electronic control unit
08/06/2008CN101237210A A home sewer motor actiyator
08/06/2008CN101237207A Integrated circuit for driving motor
08/06/2008CN101236762A Method for driving optical disk feed device by updating motor voltage
08/06/2008CN100409561C Driving system for brushless motor of electric vehicle
08/05/2008US7408320 Apparatus for power control by phase gating and a method for harmonic reduction
07/2008
07/31/2008WO2008089591A1 A control system for a brushless dc motor and a control method thereof
07/31/2008US20080181586 Fan rotation speed control circuit of power supply system
07/31/2008US20080180050 Movable barrier operator auto-force setting method and apparatus
07/31/2008US20080180049 Low noise and energy saving air vacuum cleaner
07/31/2008US20080180045 Elimination of unintended velocity reversals in s-curve velocity profiles
07/30/2008EP1950880A2 Thin type display device
07/30/2008EP1449000B1 Control device
07/29/2008US7405916 Control apparatus of semiconductor switch
07/24/2008WO2008027874A3 Current limiting dc motor starter circuit
07/23/2008CN101227164A Direct current compressor drive circuit
07/23/2008CN101227162A Method and apparatus for driving under random connection and automatically distinguishing phase of brushless DC motor
07/23/2008CN101224571A Hand-held electric tool
07/22/2008US7403700 Motor control device
07/22/2008US7402970 Electric power steering device
07/22/2008US7402968 Field winding synchronous generator-motor
07/17/2008WO2008009827A3 Supply circuit for a motor disposing of an element providing for power switching, a protection against polarity inversion and an element for limiting the inrush current of a capacitive element
07/17/2008WO2008006727A3 Circuit arrangement for measuring the current consumption of a pulse-width modulation-controlled direct-current motor
07/17/2008WO2007103109A3 Cordless power tool having multi-speed transmission and constant speed in light torque range
07/17/2008WO2007070814A3 Method and apparatus for sensorless position control of a permanent magnet synchronous motor (pmsm) drive system
07/17/2008US20080169777 System and method for adjusting a dead-time interval in a motor control circuit
07/17/2008US20080169774 Integrated linear motor
07/17/2008US20080169732 Integrated stator and rotor for a dc brushless ceiling fan motor
07/17/2008US20080168611 Changing Amplitude of Movement By Changing the Drive Frequency of a Toothbrush Brushhead
07/17/2008DE102008003287A1 Controlling device for electric motor, particularly brushless direct current motor, in battery-powered electric tool, has electronic module and switch module that are designed as separate components
07/17/2008CA2617874A1 Modular trolling motor control system
07/16/2008EP1943724A2 Drill with solid state speed control and method of operating
07/16/2008EP1943059A2 Articulating drill with optical speed control and method of operation
07/16/2008CN101222196A Fan driving circuit
07/15/2008US7400106 Method and apparatus for providing torque limit feedback in a power drill
07/15/2008US7400105 Motor drive device and image-forming device including the same
07/10/2008WO2008080474A1 Adjustment system for a motor vehicle
07/10/2008US20080166110 Fan driving circuit
07/10/2008US20080166109 Device and method of driving BLDC motor and increasing driving speed of BLDC motor
07/10/2008US20080165216 Image forming apparatus and method thereof
07/10/2008US20080164836 Static Frequency Converter with Automatic Function for Optimizing Magnetic Flux and Minimizing Losses in Electric Induction Motors
07/10/2008US20080164832 Rotation Control Device and Construction Machine
07/09/2008EP1941610A1 Actuator for automotive climatization units
07/08/2008US7398012 Method for powering mining equipment
07/08/2008US7397150 Method and control unit for driving a control circuit
07/08/2008US7395875 Rechargeable battery-operated hand machine tool
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