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