Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217)
05/2007
05/31/2007US20070120509 Methods and systems for providing pwm control signals to an electronically commutated motor
05/31/2007DE102006053502A1 Elektrowerkzeug, insbesondere Akku-Elektrowerkzeug Power tool, especially cordless power tool
05/30/2007EP1696818B1 Changing amplitude of movement by changing the drive frequency of a toothbrush brushhead
05/30/2007EP1131873B1 A system and a method for protecting an electric motor and its control circuit, and an electric motor
05/30/2007CN1973430A Method and apparatus for controlling an electric motor
05/30/2007CN1972114A A method for control of non-laminated DC motor with digital DC speed-regulating apparatus
05/30/2007CN1319265C Linear vibration motor
05/30/2007CN1319264C Power circuit of high speed motor
05/30/2007CN1319262C Robust current loop controller used for servo system and control method therefor
05/29/2007US7222694 Control unit for electric power steering
05/24/2007WO2007037692A3 Regulator circuit for an electric motor, provided with a microprocessor
05/24/2007US20070114959 Method and apparatus for controlling the speed of a dc motor
05/24/2007US20070114958 Automatic transfer switch apparatus
05/24/2007US20070114957 Method for controlling the firing angle of an electric motor
05/24/2007US20070114859 Cooling fan
05/24/2007DE102005052991A1 Verfahren und Schaltungsanordnung zur Steuerung des Betriebs eines Elektromotors eines elektrischen Gerätes, insbesondere eines elektrischen Hausgerätes, sowie dabei einsetzbare Schnittstellenschaltungsanordnung Method and circuit arrangement for controlling the operation of an electric motor of an electrical appliance, in particular an electrical household appliance, which can be used here as well as interface circuitry
05/24/2007DE102004010394B4 Strom-Controller für induktive Last Current controller for inductive load
05/23/2007EP1788699A1 Circuit arrangement and method for operating a circuit arrangement
05/23/2007CN2904475Y Control circuit for DC electric machine
05/23/2007CN1969452A Automatic output power limiting electrical device
05/23/2007CN1969229A Actuator drive circuit for shutter and actuator for shutter
05/23/2007CN1968003A A low-loss, high reliability integration magnetic levitation flywheel DC brushless motor control system
05/23/2007CN1968002A A phase-lock steady speed control system of high speed permanent-magnetic brushless DC motor
05/23/2007CN1967733A Resistor for controlling load circuit and its assembly method and wiring board
05/22/2007US7221858 Pulse-width modulation motor speed control circuit
05/22/2007US7221116 Motor control apparatus
05/18/2007WO2007056370A2 Drill with solid state speed control and method of operating
05/18/2007WO2007056255A2 Method and apparatus for providing torque limit feedback in a power drill
05/17/2007US20070110410 Stationary position detection circuit and motor drive circuit
05/17/2007US20070108930 Motor driving apparatus and control method thereof
05/17/2007US20070108925 Method for testing the serviceability of transducers
05/17/2007US20070108924 Motor Driving device
05/16/2007EP1786089A1 System and method for charging and discharging a superconducting coil
05/16/2007EP1784911A1 Circuit arrangement and method for operating an electric motor with varying rotational speed on a constant-voltage source
05/16/2007CN2901696Y Inductive load driving circuit
05/16/2007CN2901695Y Chopper speed regulating electric device for industrial and mining motor car
05/16/2007CN1965213A Single track brush-based position encoder for rotating shaft
05/16/2007CN1964180A Motor control apparatus
05/16/2007CN1962325A Electronic control windshield wiper
05/15/2007US7218846 Fan speed control circuit
05/15/2007US7218120 Fault detection circuit for a driver circuit
05/15/2007CA2567964A1 System and method for charging and discharging a superconducting coil
05/10/2007US20070104468 Motor control apparatus
05/10/2007US20070103106 Electric vehicle drive control device and control method therefor
05/10/2007US20070103105 Control unit for elctric power steering apparatus
05/10/2007US20070103104 Power torque tool
05/10/2007US20070103102 Impulse wrench with angle sensing means
05/10/2007US20070103008 Moving magnet type linear slider
05/09/2007EP1782529A1 Automatic output power limiting electrical device
05/09/2007EP0950280B1 Adjustable speed control for children's ride-on vehicle
05/09/2007CN1961470A Moving magnet type linear slider
05/09/2007CN1960158A Drive and brake modes of micro motor in a portable type electronic product
05/09/2007CN1959580A Circuit for controlling speed of fan, and control method
05/08/2007US7215093 Motor drive circuit and motor drive method that can positively perform a brake operation
05/08/2007US7215091 Method for controlling a DC printer motor with a motor driver
05/08/2007US7213461 Torsional shaker apparatus for inspecting rotatable power generation machinery
05/03/2007US20070101193 Diagnostic and managing distributed processor system
05/03/2007US20070098374 Information processing apparatus and fan control method
05/03/2007US20070098373 Dc motor drive unit
05/03/2007US20070096683 Electric Motor Driving System, Electric Four-Wheel Drive Vehicle, and Hybrid Vehicle
05/03/2007US20070096672 Electric power steering apparatus and controller therefor
05/03/2007US20070096671 Inverter
05/03/2007US20070096669 Apparatus and method for controlling rotation speed of a fan
05/03/2007US20070096665 Method and circuit for controlling motor speed
05/02/2007EP1780726A2 Movement control device, movement control method, movement control program and recording medium storing the program
05/02/2007EP1779351A1 Electric roller-shutter actuator comprising a control interface with electric break contacts
05/02/2007CN2896349Y Vehicle-door control device of automotive network system
05/02/2007CN1957525A Coil load driving circuit and optical disc device
05/02/2007CN1956315A Circuit for controlling speed of fan
05/02/2007CN1313733C Apparatus and method for controlling operation of linear compressor
05/01/2007US7212036 Driving apparatus of H bridge circuit and protection method of the same
05/01/2007US7211974 Motor and drive control system thereof
05/01/2007US7211972 Power tool with remote stop
04/2007
04/26/2007WO2007046120A1 Actuator for automotive climatization units
04/26/2007US20070092232 Motor drive unit
04/26/2007US20070090782 Control apparatus of electric power steering apparatus
04/26/2007US20070090780 Series motor and method of controlling the same
04/26/2007DE202006011247U1 Modul eines PWM-Treibers als Motortreiber für SPS-Steuerung Module of a PWM driver as an engine driver for PLC
04/26/2007DE19910755B4 Lineare Strommeßschaltung für Motorsteuerung Linear current sensing circuit for motor control
04/26/2007DE102006047707A1 Verfahren zur Messung eines Motorstromes A method of measuring a motor current
04/26/2007DE10048353B4 Antriebssteuerung für einen elektrischen Antrieb Drive controller for an electric drive
04/24/2007US7207173 Method and apparatus for warm up control of autonomous inverter-driven hydraulic unit
04/19/2007WO2007044913A2 Wheelchair with motor speed and torque control
04/19/2007WO2007042359A1 Device for supplying pulse width-modulated output pulses for the motor of a fan
04/19/2007WO2007015968A3 kW-BASED TORQUE CONTROL FOR AC MOTORS
04/19/2007US20070086755 Pulse width modulation drive and method for ornaments with movable components
04/19/2007US20070085500 Apparatus and method for controlling brushless DC motor
04/19/2007US20070085499 Rotor position detection of a brushless DC motor
04/19/2007US20070085498 Method and apparatus to control a variable speed motor
04/19/2007DE102005048330A1 Ansteuersystem für eine elektrische Maschine Drive system for an electric machine
04/19/2007DE102005048192A1 Drive for moving displays in a vehicle comprises a position-determining device consisting of a Hall switch integrated in a d.c. motor to produce a signal during adjustment of a display
04/19/2007DE102005007259B4 Positionsmessvorrichtung Position measuring device
04/18/2007CN1950993A Commutator motor having a number of field winding groups
04/18/2007CN1950613A System and method for variable speed operation of a screw compressor
04/18/2007CN1949119A Fan system and method with circuit magnetic hysteresis feature
04/18/2007CN1311605C Wire or wireless system for power tool and method for power supply
04/17/2007US7205736 Method for voltage feedback for current mode linear motor driver
04/12/2007US20070081800 System and method for controlling the rotating speed of a fan
04/12/2007US20070081799 Motor driving device and electric power steering apparatus
04/12/2007US20070080656 Wheelchair with motor speed and torque control
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