Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217)
09/2002
09/24/2002US6456028 Pulse generating circuit for driving DC motor
09/24/2002US6456022 Movable barrier operator
09/19/2002US20020130579 DC motor and method of controlling the same
09/18/2002CN2512160Y Controller for speed-adjusting three-phase D.C. brushless permanent-magnet electric motor
09/12/2002WO2002071593A1 Circuit arrangement for supplying a direct current machine
09/12/2002US20020128808 Method and apparatus for characterization of voice-coil motor with eddy current effect
09/12/2002US20020125847 Method and device for controlling DC servomotor for driving rotating load
09/11/2002CN1090837C Reduction operation for multi-winding induction motor after fault of converter
09/11/2002CN1090836C Controller for DC electrical motor and controlling method for DC motor
09/05/2002US20020122662 Constant speed control circuit for a fan
09/04/2002CN1367575A Control device and output method of action parameter of control device
08/2002
08/29/2002US20020118497 Reverse voltage protection for motor drive
08/29/2002US20020118496 Active snubber circuit for electrical rotary actuator
08/28/2002EP1235341A2 Active snubber circuit for electrical rotary actuator
08/27/2002US6439336 Electric power steering apparatus
08/26/2002CA2347233A1 Active snubber circuit for electrical rotary actuator
08/21/2002EP1232573A1 Circuit and method for preventing erroneous opening and closing in an automatically/manually foldable portable radio phone
08/21/2002CN1365184A Motor control system
08/15/2002US20020109478 Fan motor with variable frequency/constant speed control
08/15/2002US20020108474 Speed controller for flywheel operated hand tool
08/14/2002DE10105207A1 Verfahren und Vorrichtung zur Drehzahlregelung eines Gleichstrommotors für Modellfahrzeuge Method and apparatus for speed control of a DC motor for model cars
08/14/2002CN2506020Y Best operation frequency and input voltage obtaining device of high efficiency air conditioner
08/13/2002US6433507 Spread spectrum motor control circuit
08/13/2002US6433496 Semiconductor integrated circuit for motor control
08/08/2002WO2002050618A3 Microturbine/capacitor power distribution system
08/07/2002CN2504824Y Control circuit for radiating system
07/2002
07/31/2002EP1227212A2 Drive assembly for a covering of an architectural opening
07/31/2002EP1226996A2 Motor controller for battery forklift
07/31/2002EP1226647A2 Method for controlling at least one inductive consumer by means of a pulse width modulated control signal
07/31/2002CN1361322A Drive mechanism of fully automatic washing machine
07/25/2002US20020097021 Starting device and method for eliminating a peak current
07/25/2002US20020097019 Motor controller for battery forklift
07/25/2002CA2365153A1 Motor controller for battery forklift
07/24/2002EP1144213B1 Method and device for operating an actuating drive of a motor vehicle with different vehicle electric system voltages
07/18/2002US20020093303 Motor control system
07/17/2002CN1359192A 记录装置 Recording device
07/11/2002US20020091469 Flexible and compact motor control module based on the can communication network
07/11/2002DE10100716A1 Operating method for ohmic-inductive component for a car circuit application
07/10/2002CN1087519C Variable speed control switch for direct current electric power tools
07/10/2002CN1087517C Direct current motor with imbalanced winding for closed-loop feedback control
07/10/2002CN1087481C Apparatus and method for controlling electric motor
07/09/2002US6417637 Movable barrier operator
07/04/2002WO2002051592A1 Speed controller for flywheel operated hand tool
07/04/2002WO2002051591A1 Control module for flywheel operated hand tool
07/04/2002US20020085837 Shunt automatically controlled output circuit incorporating stored voltage or counter electro motive force loading
07/04/2002DE10161581A1 Flexibles und kompaktes Motorsteuerungsmodul basierend auf dem CAN-Kommunikationsnetzwerk Flexible and compact motor control module based on the CAN communication network
07/04/2002CA2432982A1 Speed controller for flywheel operated hand tool
07/04/2002CA2432980A1 Control module for flywheel operated hand tool
07/03/2002EP1219016A1 Direct current motor control circuit
07/03/2002EP1219014A1 Minimization of motor torque ripple due to unbalanced conditions
07/03/2002CN2498794Y 多功能电风扇控制器 Multifunctional Fan Controller
06/2002
06/27/2002WO2002050618A2 Microturbine/capacitor power distribution system
06/26/2002EP1216526A1 Reduction of emi through switching frequency dithering
06/20/2002WO2002049202A1 Servo control method and device for dc motor
06/20/2002DE10062918A1 Busgesteuerter Stellantrieb Busgesteuerter actuator
06/19/2002EP1215797A2 Shunt automatically controlled output circuit incorporating stored voltage or counter electromotive force loading
06/19/2002EP1215061A2 Bus commanded actuator
06/19/2002EP1214602A1 Method for regulating the rotational speed of a motor and a motor for carrying out a method of this type
06/18/2002EP0878052A3 Low-voltage generation in mains-powered hot-air appliances having a fan motor
06/13/2002US20020071225 Direct current motor safety circuits for fluid delivery systems
06/13/2002US20020070556 Energy conversion system
06/13/2002DE19942004C2 Drehzahlregelung an einem Elektrokleinstmotor für zahnärztliche Zwecke Speed ​​control of a miniature electric motor for use in dentistry
06/12/2002CN1353500A Control device and setting method of action parameters
06/11/2002US6404150 Accessory motor drive power supply system for an electric vehicle
06/06/2002US20020067147 Automatic reverse motor controller
06/06/2002US20020067084 Electric motor controlled as an electroacoustic transducer
06/06/2002DE10059680A1 Starting device for use in internal combustion engines has an electric starter motor with a rotor supplied with current by means of brushes sliding on a commutator
06/04/2002US6397971 Electrically powered steering system
05/2002
05/30/2002WO2002043236A2 Bypass circuit for use in dc brush motor control
05/30/2002US20020063546 Current sense IC with circuitry for eliminating ripple current error from motor current measurement
05/30/2002CA2430195A1 Bypass circuit for use in dc brush motor control
05/29/2002EP1208639A1 Method for providing a digital current fluctuation signal
05/29/2002EP1208638A1 Method for detecting the rotational position of the drive shaft of a dc motor
05/29/2002EP1208637A1 Method for determining the rotational position of the drive shaft of a direct current motor
05/29/2002DE10054528A1 Schaltungsanordnung eines zwei Anschlüsse aufweisenden Elektromotors Circuit arrangement of a two-terminal electric motor
05/29/2002CN1350928A Method for control of sheet transfer and method for control of recorder
05/23/2002US20020060106 System for controlling electric power steering
05/23/2002DE10128749A1 Electric power steering controller for vehicle, has transistors that are turned on before relay is driven to turn on contacts of relay
05/23/2002DE10108946A1 Electric motor control method e.g. for windows or roof in motor vehicle, using transistor to separate voltage source from switching contacts at switch-off point or shortly before
05/21/2002US6392373 Automatic reverse motor controller
05/21/2002US6390064 Electronic throttle valve control apparatus
05/16/2002US20020057015 Electric power steering controller
05/16/2002DE10053688A1 Kontaktscheibensystem und Verfahren zum Steuern eines Scheibenwischermotors Contact disc system and method for controlling a windscreen wiper motor
05/15/2002EP1205023A1 Electric motor controlled by an electro-acoustic converter
05/15/2002EP0975829B1 Drive unit for a shaft of a device working in synchrony with the shanks of a mechanical loom to form a leno selvage
05/10/2002WO2002037662A1 Circuit arrangement of an electromotor comprising two terminals
05/10/2002WO2002037646A1 Closed loop clutch/brake control
05/08/2002EP0950280A4 Adjustable speed control for children's ride-on vehicle
05/08/2002EP0929818B1 Electrical circuit to detect load current
05/07/2002US6384555 DC motor driving apparatus
05/02/2002WO2002034587A1 Contact washer system and method for controlling a windscreen wiper motor
05/02/2002WO2000070738A3 Method for controlling at least one inductive consumer by means of a pulse width modulated control signal
05/02/2002US20020051028 Control method for sheet member conveying apparatus and control method for recording apparatus
05/02/2002US20020051026 Recording apparatus
05/02/2002US20020050803 PWM-pulse control system
05/02/2002EP1201581A2 Control method for sheet member conveying apparatus and control method for recording apparatus
05/02/2002EP1201446A2 Recording apparatus
04/2002
04/30/2002US6381528 Control unit for electric power steering apparatus
04/30/2002US6381406 Adaptive synchronous DC fan speed controller
04/30/2002US6380704 Fan linear speed controller
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