Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217)
06/2001
06/20/2001EP1108606A2 Electric generating system for automobiles and its control method
06/19/2001US6249828 Method for the hot swap of a mass storage adapter on a system including a statically loaded adapter driver
06/19/2001US6249097 Optimum motor speed control system
06/13/2001EP1105964A1 Circuit for regulating the rotational speed of a fan
06/13/2001CN2434825Y Man-electricy pool efferts electronic controller
06/13/2001CN1067190C 故障诊断电路 Troubleshooting Circuit
06/12/2001US6246199 Automotive convertible top system
06/12/2001US6246196 Movable barrier operator
06/07/2001WO2001041166A2 Electric changeover switch
06/07/2001DE19952389A1 Determining parameters of electrically powered motor systems, involves setting drive current values via regulator for constant predefined force on rotor element, and measuring drive current and force
06/07/2001DE19951553A1 Voltage compensation of mini-electrical motor e.g. for dental tool, involves digitally increasing/reducing drive pulse oscillation, and compensating voltage dips in analogue form by loading over integration time
06/06/2001EP1104895A2 Commutation pulse detector in a bi-directional motor
06/05/2001US6243532 Rotational speed control device for an electric motor
06/05/2001US6242938 Electrical circuit to detect load current
05/2001
05/31/2001DE19956768A1 Pumpe mit Vibrationssensor Pump with vibration sensor
05/31/2001DE19956076A1 Antriebseinrichtung für Aufzugtüren Drive device for elevator doors
05/31/2001DE19951018A1 Schaltungsanordnung zum Betreiben eines Elektromotors Circuit arrangement for operating an electric motor
05/30/2001EP1104088A2 Pump with vibration sensor
05/29/2001US6239991 Control circuit compensating for malfunction of pulse width modulation circuitry
05/29/2001US6239569 Movable barrier operator
05/29/2001US6237698 Terminal protection system for portable power tools
05/23/2001EP1102390A2 Drive device for lift doors
05/23/2001DE10051573A1 Verfahren und Vorrichtung zum Reinigen einer Kommutator-Bürste-Kontaktfläche in einem Gleichstrommotor Method and apparatus for cleaning a commutator-brush-contact surface in a DC motor
05/23/2001CN1066298C Circuit distribution for controlling bidirectional ac motor
05/22/2001US6236176 Method for electronic control and adjustment of the movement of electrically actuated units
05/22/2001US6236175 Process and device for detecting the speed of rotation of a DC electric motor controlled by a PWM control signal
05/17/2001DE19938670A1 Als elektro-akustischer Wandler angesteuerter elektrischer Elektromotor As an electro-acoustic transducer is overdriven electric motor
05/08/2001US6229277 Method and apparatus for the damping of motor vibrations
05/08/2001US6229276 Movable barrier operator
05/02/2001CN1065375C Harmonic current attenuation device for electric motor
04/2001
04/25/2001EP1094588A2 Circuit arrangement for operating an electric motor
04/24/2001US6222362 Method for detecting the position and direction of motion of a moving part mounted on an electric motor
04/12/2001DE10036839A1 Frequency measurement procedure for determination or rotational velocity of a motor rotor or similar has improved event counting procedure that prevents overloading of a controlling processor at high rotational velocities
04/11/2001CN1290997A Driving control circuit for fume exhauster motor
04/11/2001CN1064488C Current sensing circuit for pulse width modulated motor drive
04/10/2001US6215435 Linear current sensing circuit for motor controller
04/05/2001DE19945286A1 Controller for commutator motor for electric hand tools , divides direct voltage into first and second ranges with fixed sectional height in second range during operation of motor without changeover processes
04/04/2001EP1088674A1 Control unit and method for controlling motor for use in printer, and storage medium storing control program
04/04/2001EP1088387A1 Device with an electromotor
03/2001
03/29/2001WO2001022569A1 Direct current motor control circuit
03/29/2001WO2001022095A1 Method for regulating the rotational speed of a motor and a motor for carrying out a method of this type
03/29/2001DE10041027A1 Digital motor speed control for industrial drives has programmed control function is adaptable
03/28/2001EP1087232A1 Method for measuring a frequency, in particular an angular frequency of a motor, and device for implementing such a method
03/27/2001US6208099 Technique for controlling current limiter of motor
03/22/2001DE19944964A1 Controlling and regulating displacement drive in motor vehicles e.g. for window lifters, involves linearly regulating adjusting speed and-or adjusting force
03/22/2001DE19943210A1 Verfahren und Vorrichtung zur Impulsbreitenbegrenzung zur Regelschwingungsunterdrückung Method and apparatus for pulse width restriction to control oscillation suppression
03/21/2001CN1287930A Electric motor driving unit, and method for testing fault of electric motor driving unit
03/15/2001WO2001018340A1 Method for regulating an actual speed of the working stroke of a window-pane and a device for carrying out said method
03/15/2001DE19942004A1 Drehzahlregelung an einem Elektrokleinstmotor für zahnärztliche Zwecke Speed ​​control of a miniature electric motor for use in dentistry
03/15/2001DE19935100A1 Halbbrückenkonfiguration Half-bridge configuration
03/14/2001EP1083654A2 Motor drive unit and method of detecting malfunction of the motor drive unit
03/14/2001EP1083651A2 Pulse width limiting method and device to suppress control oscillations
03/14/2001EP1082806A1 Method and circuit for power detection in electronically switched electric motors
03/14/2001CN1063297C DC motor control circuit
03/13/2001US6201929 Multistage rotating speed control circuit for DC motor
03/07/2001EP1080696A2 Speed control for an electric miniature motor for dental purposes
03/07/2001CN2422359Y Speed-regulating variable flow drainage device
03/06/2001US6199023 System for removing spurious signatures in motor current signature analysis
03/06/2001US6198315 Current detection circuit
02/2001
02/28/2001EP1079511A1 Power supply for DC-motors
02/28/2001EP1079510A2 Half bridge configuration
02/28/2001CN1285472A Multi-stage driving type ompression pump driving system for air conditioning and refrigerating
02/22/2001WO2001013510A1 Electric motor controlled by an electro-acoustic converter
02/21/2001CN1284783A 智能电动机 Intelligent Motor
02/20/2001US6191542 Method and apparatus for cleaning a DC motor commutator-brush interface
02/14/2001CN2419740Y A.C. motor electrodes for liquid soft ignition and speed regulator
02/13/2001US6189109 Method of remote access and control of environmental conditions
02/08/2001WO2001010011A1 Electronic controller for mirror assembly
02/07/2001CN1061800C Waverwide adjusting control circuit for DC brushless fan
02/06/2001US6184665 Integrated current mode PWM drive system supply voltage scaleable while retaining a high precision
01/2001
01/31/2001EP1073191A2 Speed control circuit of a direct current motor
01/31/2001EP1072425A2 Control unit and method for controlling motor for use in printer and storage medium storing control program
01/31/2001EP1072047A2 Drive unit for switching circuit breakers on and off
01/31/2001EP1071982A1 Apparatus and method for controlling an electric assist steering system
01/31/2001CN2417627Y Speed adjustable, permanent magnet, out rotator and wheel tyre type dc motor with self-rotating carbon brush used for driving electric bicycle
01/31/2001CN1282015A Control device and method for printer motor and recording medium
01/31/2001CN1061487C Apparatus for controlling driving signal for motor
01/30/2001US6181098 DC motor control circuit
01/30/2001US6181093 Commutation circuit for a sensorless three-phase brushless direct curent motor
01/30/2001US6179012 Synchronized drive system for a leno selvedge
01/24/2001EP1070571A1 Device and method for controlling joint mechanism, joint device, robot device, and method for controlling robot device
01/24/2001EP0920266B1 Electrical circuit for supplying power
01/16/2001US6175204 Dynamic brake for power door
01/11/2001DE19931921A1 Sensor-less rotation speed detection circuit for DC motor connects motor to constant current source during measurement phase
01/09/2001US6172475 Movable barrier operator
01/04/2001WO2001001556A1 Optimum motor speed control system
01/04/2001DE19927904A1 Vorrichtung zum Betreiben einer Last Device for operating a load
01/04/2001DE19915876A1 Clocked electrical energy feed method e.g. for electric motor, uses synchronized operation of power switches contained in parallel current feed paths
01/04/2001DE19603114C2 Elektrische Servolenkeinrichtung Electric power steering system
01/04/2001DE10031653A1 Driver current circuit for inductive load e.g. DC motor, has main electronic switch in series with load and auxiliary switch in parallel circuit containing capacitor charged via feedback diode
01/03/2001EP1064904A2 Electromotive driving arrangement for furniture
01/03/2001EP1064717A1 Method and circuit for measuring the rotation speed of electronically switched fans
12/2000
12/28/2000WO2000079683A1 Device for operating an electrical load
12/28/2000WO2000079676A1 Direct current motor safety circuits for fluid delivery systems
12/28/2000DE19928907A1 Steuerschaltung Control circuit
12/27/2000CN1278121A Fuzzy control energy-saving device for three-phase asynchronous electric motor
12/26/2000US6166930 Reduced common voltage in a DC matrix converter
12/26/2000US6166869 Method and circuit for enabling rapid flux reversal in the coil of a write head associated with a computer disk drive, or the like
12/20/2000EP1061649A1 Circuit arrangement and method for controlling a load
12/12/2000US6160365 Interface module for a motor control system
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