Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217)
01/2008
01/30/2008CN101114489A Method for smoothly reducing CD-disc speed in CD apparatus
01/30/2008CN100365933C Electric window drive apparatus
01/29/2008US7324316 Hot-swap circuit system for fan tray module
01/29/2008US7323841 Method and apparatus for detecting multiple overcurrent thresholds using a single comparator device
01/29/2008US7323840 Magnetic-pole detecting system for synchronous AC motor and magnetic-pole detecting method therefor
01/29/2008US7323839 Direct current motor controlling method
01/29/2008US7323838 Motor control method and device thereof
01/24/2008WO2008009679A1 Control for electrically adjustable furniture
01/24/2008WO2008009045A1 Multi-purpose drive system for a combustion engine
01/24/2008WO2007056370A3 Drill with solid state speed control and method of operating
01/24/2008US20080019678 Coil Load Driving Circuit and Optical Disc Device
01/24/2008US20080019677 Motor Drive Circuit and Electronics
01/24/2008US20080018285 Method and circuit for testing motor
01/24/2008US20080018282 Component position determination circuit using a brushless DC motor commutation sensor
01/24/2008US20080018281 Control apparatus of brushless dc motor and control method thereof
01/24/2008US20080018280 Control device of electric power steering apparatus
01/24/2008US20080018279 Motor driving apparatus, motor driving method and disk driving apparatus
01/24/2008US20080018278 Motor and drive control device therefor
01/24/2008US20080018275 Sensorless control in a permanent magnet machine
01/24/2008US20080018274 Motor Driving Apparatus
01/24/2008US20080018273 Rotor position detection circuit and motor driving device
01/24/2008US20080018272 Motor control device and setting method thereof
01/24/2008US20080018271 Rotation Control Device, Rotation Control Method and Construction Machine
01/24/2008US20080018270 Method and apparatus for increasing the run time of an electric cart
01/24/2008US20080018194 Claw-pole type singel-phase motor, claw-pole type single-phase motor system and electric pump, electric fan and vehicle provided with claw-pole type single-phase motor
01/24/2008DE102006032193A1 Drehwinkelbestimmung eines Elektromotors Rotation measurement of an electric motor
01/24/2008DE102006032192A1 Drehwinkelbestimmung eines Elektromotors Rotation measurement of an electric motor
01/24/2008CA2657889A1 Controller for electrically adjustable furniture
01/23/2008CN100364225C Sensorless motor driving device and its driving method
01/23/2008CN100364216C Servo-type motor with built-in driving circuit
01/23/2008CN100364072C Motor drive device with power semiconductor module life testing function
01/17/2008US20080013929 Motor driving using discrete time oscillator
01/17/2008US20080012514 Non-reaction torque drive
01/17/2008US20080012512 Control apparatus for electric vehicles
01/17/2008DE102006032737A1 Schaltungsanordnung zur Messung der Stromaufnahme eines durch Pulsweitenmodulation gesteuerten Gleichstrommotors Circuit arrangement for measuring the current consumption of a controlled by pulse width modulation DC motor
01/16/2008EP1879289A1 Determination of the angle of rotation of an electric motor
01/16/2008CN201008134Y DC brushless motor constant speed control circuit for flexible axle power source of operation power installation
01/16/2008CN201008133Y Silicon controlled constant frequency width adjustment controller
01/16/2008CN101106349A Control apparatus of brushless DC motor and control method thereof
01/16/2008CN101106348A A speed control system of DC brushless motor
01/10/2008US20080008459 Motor control system for the PWM control of an electric motor
01/10/2008US20080007228 Regulator system for alternator
01/10/2008DE102006030721A1 Elektromotor mit Drehzahlstellung Electric motor with speed control
01/09/2008EP1340307B1 Closed loop clutch/brake control
01/09/2008CN101103507A Overcurrent protective circuit, load driving unit, motor driving unit, electrical equipment, and power unit
01/08/2008US7317304 Inductive load driving device
01/03/2008WO2005091943A3 Methods for electrically isolating a portable electrically-operated device and converter module for portable electrically-operated device
01/03/2008US20080004832 Sensorless Measurement of Positioning Travel, Especially on an Electromotively Operated Parking Brake
01/03/2008US20080002953 Device for the Incremental Control of a Direct-Current Motor for the Cooling Fan of a Motor Vehicle
01/03/2008US20080002443 Converter circuit and motor driving apparatus
01/03/2008US20080001564 Electric drivetrain thermal protection system
01/03/2008US20080001561 PWM control system
01/03/2008DE202006013427U1 Steuervorrichtung zur Ansteuerung eines Elektromotors in einem Kraftfahrzeug Control means for driving an electric motor in a motor vehicle
01/03/2008DE102006029723A1 Lüftersteuerung und Verfahren zur Einstellung der Drehzahl eines Lüfters Fan control and method for adjusting the speed of the fan
01/03/2008DE102006029364A1 Control circuit for direct current motor, has motor current branch, and free-wheeling diode interconnecting current branches such that diode is attached at contact point between motor and switching unit
01/02/2008EP1873899A2 Ventilation control and method for adjusting the rotational speed of a ventilator
01/02/2008CN201000478Y Motor dynamic loading controller
01/02/2008CN200999009Y Mining electrical brake locomotive governor
01/02/2008CN200998556Y Controlling gear for the horseback riding machine
01/02/2008CN101098119A 电动工具开关机构 Power Tools switch mechanism
01/02/2008CN101098118A Rotation velocity control method and circuit of DC dragging system
01/01/2008US7315145 System of controlling a sliding member for a vehicle
12/2007
12/27/2007WO2007044930A3 Control and protection methodologies for a motor control module
12/27/2007US20070297772 Method for digital sampling and corresponding implementation device
12/27/2007US20070296361 Speed control device for electric motor
12/27/2007US20070296360 Monitoring device of rotor position of an electric motor and corresponding method
12/27/2007DE102006028634A1 Verstellantrieb zum Verstellen mindestens eines beweglichen Teils in einem Kraftfahrzeug Adjusting drive for adjusting at least one movable part in a motor vehicle
12/27/2007DE102006008839B4 Elektronische Einrichtung zur Regelung der Spannung über einer sich in High-Side befindlichen Last Electronic device for regulating the voltage across a load in the high-side
12/26/2007EP1871002A2 Adjustment drive for adjusting at least one moveable part in a motor vehicle
12/26/2007EP1692757B8 Device for power adjustment by phase control and method for reduction of harmonic waves
12/26/2007CN200997581Y Speed adjuster of small DC motor
12/26/2007CN101092134A Method and device for controlling and/or adjusting generator in automobile
12/25/2007US7312592 Adaptive system for optimizing excitation current waveform profiles for electric motors
12/20/2007US20070292116 Fan control system
12/20/2007US20070290644 Cold rattle reduction control system
12/20/2007US20070290642 Vehicle switch
12/20/2007US20070290641 Storage device and motor control device
12/20/2007US20070290639 Motor controller
12/20/2007US20070290637 Hot spot sensoring control of linear motors
12/20/2007DE102007027872A1 Motor drive device e.g. pulse width modulation device, for driving galvanometer mirror, has pulse width modulation generating circuit generating pulse width modulation signal having fundamental frequency of equal to or less than fifty hertz
12/20/2007DE102007000286A1 Welligkeitserfassungsvorrichtung Welligkeitserfassungsvorrichtung
12/19/2007EP1867037A1 Device for controlling an electromechanical power converter, particularly of an electric motor
12/19/2007EP1340313B1 Bypass circuit for use in dc brush motor control
12/19/2007CN100356682C Method and system for intelligent fan speed control
12/18/2007US7310475 Motor driving apparatus
12/13/2007WO2007142127A1 Control device and control method
12/13/2007WO2001054262A9 Railway switch machine motor control apparatus
12/13/2007US20070285038 Full Bridge Circuit and DC Motor Capable of Fixing Output Voltage and Avoiding Reverse Current
12/13/2007US20070285036 A device and method for reducing disk drive power consumption
12/12/2007EP1865505A1 Prevention of noise due to concurrent signals of H-bridge driving of a voice coil motor
12/12/2007EP1864376A1 Electric motor control circuit having reduced electromagnetic interference emissions
12/12/2007EP1863689A1 Optimal capturing of a dc-motor residual voltage
12/12/2007EP1602170A4 Excitation circuit and control method for flux switching motor
12/12/2007EP1470630B1 Device for suppressing the radio-interference of an electric commutator
12/12/2007CN200990580Y DC motor speed regulating circuit device for overtemperature protection
12/12/2007CN200990579Y DC brushless electric machine constant speed control circuit for operation dynamic device micro-power source
12/12/2007CN100355197C Medium-voltage motor chopper speed governing digital intelligent controlling system having stalling protection
12/12/2007CN100354168C Electric power steering unit
12/11/2007US7307394 Control and motor arrangement for use in model train
12/06/2007WO2007137394A1 Electric motor control by adjusting impedance of phase windings
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