Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
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06/20/2001 | EP1108606A2 Electric generating system for automobiles and its control method |
06/19/2001 | US6249828 Method for the hot swap of a mass storage adapter on a system including a statically loaded adapter driver |
06/19/2001 | US6249097 Optimum motor speed control system |
06/13/2001 | EP1105964A1 Circuit for regulating the rotational speed of a fan |
06/13/2001 | CN2434825Y Man-electricy pool efferts electronic controller |
06/13/2001 | CN1067190C 故障诊断电路 Troubleshooting Circuit |
06/12/2001 | US6246199 Automotive convertible top system |
06/12/2001 | US6246196 Movable barrier operator |
06/07/2001 | WO2001041166A2 Electric changeover switch |
06/07/2001 | DE19952389A1 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 |
06/07/2001 | DE19951553A1 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 |
06/06/2001 | EP1104895A2 Commutation pulse detector in a bi-directional motor |
06/05/2001 | US6243532 Rotational speed control device for an electric motor |
06/05/2001 | US6242938 Electrical circuit to detect load current |
05/31/2001 | DE19956768A1 Pumpe mit Vibrationssensor Pump with vibration sensor |
05/31/2001 | DE19956076A1 Antriebseinrichtung für Aufzugtüren Drive device for elevator doors |
05/31/2001 | DE19951018A1 Schaltungsanordnung zum Betreiben eines Elektromotors Circuit arrangement for operating an electric motor |
05/30/2001 | EP1104088A2 Pump with vibration sensor |
05/29/2001 | US6239991 Control circuit compensating for malfunction of pulse width modulation circuitry |
05/29/2001 | US6239569 Movable barrier operator |
05/29/2001 | US6237698 Terminal protection system for portable power tools |
05/23/2001 | EP1102390A2 Drive device for lift doors |
05/23/2001 | DE10051573A1 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 |
05/23/2001 | CN1066298C Circuit distribution for controlling bidirectional ac motor |
05/22/2001 | US6236176 Method for electronic control and adjustment of the movement of electrically actuated units |
05/22/2001 | US6236175 Process and device for detecting the speed of rotation of a DC electric motor controlled by a PWM control signal |
05/17/2001 | DE19938670A1 Als elektro-akustischer Wandler angesteuerter elektrischer Elektromotor As an electro-acoustic transducer is overdriven electric motor |
05/08/2001 | US6229277 Method and apparatus for the damping of motor vibrations |
05/08/2001 | US6229276 Movable barrier operator |
05/02/2001 | CN1065375C Harmonic current attenuation device for electric motor |
04/25/2001 | EP1094588A2 Circuit arrangement for operating an electric motor |
04/24/2001 | US6222362 Method for detecting the position and direction of motion of a moving part mounted on an electric motor |
04/12/2001 | DE10036839A1 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 |
04/11/2001 | CN1290997A Driving control circuit for fume exhauster motor |
04/11/2001 | CN1064488C Current sensing circuit for pulse width modulated motor drive |
04/10/2001 | US6215435 Linear current sensing circuit for motor controller |
04/05/2001 | DE19945286A1 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 |
04/04/2001 | EP1088674A1 Control unit and method for controlling motor for use in printer, and storage medium storing control program |
04/04/2001 | EP1088387A1 Device with an electromotor |
03/29/2001 | WO2001022569A1 Direct current motor control circuit |
03/29/2001 | WO2001022095A1 Method for regulating the rotational speed of a motor and a motor for carrying out a method of this type |
03/29/2001 | DE10041027A1 Digital motor speed control for industrial drives has programmed control function is adaptable |
03/28/2001 | EP1087232A1 Method for measuring a frequency, in particular an angular frequency of a motor, and device for implementing such a method |
03/27/2001 | US6208099 Technique for controlling current limiter of motor |
03/22/2001 | DE19944964A1 Controlling and regulating displacement drive in motor vehicles e.g. for window lifters, involves linearly regulating adjusting speed and-or adjusting force |
03/22/2001 | DE19943210A1 Verfahren und Vorrichtung zur Impulsbreitenbegrenzung zur Regelschwingungsunterdrückung Method and apparatus for pulse width restriction to control oscillation suppression |
03/21/2001 | CN1287930A Electric motor driving unit, and method for testing fault of electric motor driving unit |
03/15/2001 | WO2001018340A1 Method for regulating an actual speed of the working stroke of a window-pane and a device for carrying out said method |
03/15/2001 | DE19942004A1 Drehzahlregelung an einem Elektrokleinstmotor für zahnärztliche Zwecke Speed control of a miniature electric motor for use in dentistry |
03/15/2001 | DE19935100A1 Halbbrückenkonfiguration Half-bridge configuration |
03/14/2001 | EP1083654A2 Motor drive unit and method of detecting malfunction of the motor drive unit |
03/14/2001 | EP1083651A2 Pulse width limiting method and device to suppress control oscillations |
03/14/2001 | EP1082806A1 Method and circuit for power detection in electronically switched electric motors |
03/14/2001 | CN1063297C DC motor control circuit |
03/13/2001 | US6201929 Multistage rotating speed control circuit for DC motor |
03/07/2001 | EP1080696A2 Speed control for an electric miniature motor for dental purposes |
03/07/2001 | CN2422359Y Speed-regulating variable flow drainage device |
03/06/2001 | US6199023 System for removing spurious signatures in motor current signature analysis |
03/06/2001 | US6198315 Current detection circuit |
02/28/2001 | EP1079511A1 Power supply for DC-motors |
02/28/2001 | EP1079510A2 Half bridge configuration |
02/28/2001 | CN1285472A Multi-stage driving type ompression pump driving system for air conditioning and refrigerating |
02/22/2001 | WO2001013510A1 Electric motor controlled by an electro-acoustic converter |
02/21/2001 | CN1284783A 智能电动机 Intelligent Motor |
02/20/2001 | US6191542 Method and apparatus for cleaning a DC motor commutator-brush interface |
02/14/2001 | CN2419740Y A.C. motor electrodes for liquid soft ignition and speed regulator |
02/13/2001 | US6189109 Method of remote access and control of environmental conditions |
02/08/2001 | WO2001010011A1 Electronic controller for mirror assembly |
02/07/2001 | CN1061800C Waverwide adjusting control circuit for DC brushless fan |
02/06/2001 | US6184665 Integrated current mode PWM drive system supply voltage scaleable while retaining a high precision |
01/31/2001 | EP1073191A2 Speed control circuit of a direct current motor |
01/31/2001 | EP1072425A2 Control unit and method for controlling motor for use in printer and storage medium storing control program |
01/31/2001 | EP1072047A2 Drive unit for switching circuit breakers on and off |
01/31/2001 | EP1071982A1 Apparatus and method for controlling an electric assist steering system |
01/31/2001 | CN2417627Y Speed adjustable, permanent magnet, out rotator and wheel tyre type dc motor with self-rotating carbon brush used for driving electric bicycle |
01/31/2001 | CN1282015A Control device and method for printer motor and recording medium |
01/31/2001 | CN1061487C Apparatus for controlling driving signal for motor |
01/30/2001 | US6181098 DC motor control circuit |
01/30/2001 | US6181093 Commutation circuit for a sensorless three-phase brushless direct curent motor |
01/30/2001 | US6179012 Synchronized drive system for a leno selvedge |
01/24/2001 | EP1070571A1 Device and method for controlling joint mechanism, joint device, robot device, and method for controlling robot device |
01/24/2001 | EP0920266B1 Electrical circuit for supplying power |
01/16/2001 | US6175204 Dynamic brake for power door |
01/11/2001 | DE19931921A1 Sensor-less rotation speed detection circuit for DC motor connects motor to constant current source during measurement phase |
01/09/2001 | US6172475 Movable barrier operator |
01/04/2001 | WO2001001556A1 Optimum motor speed control system |
01/04/2001 | DE19927904A1 Vorrichtung zum Betreiben einer Last Device for operating a load |
01/04/2001 | DE19915876A1 Clocked electrical energy feed method e.g. for electric motor, uses synchronized operation of power switches contained in parallel current feed paths |
01/04/2001 | DE19603114C2 Elektrische Servolenkeinrichtung Electric power steering system |
01/04/2001 | DE10031653A1 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 |
01/03/2001 | EP1064904A2 Electromotive driving arrangement for furniture |
01/03/2001 | EP1064717A1 Method and circuit for measuring the rotation speed of electronically switched fans |
12/28/2000 | WO2000079683A1 Device for operating an electrical load |
12/28/2000 | WO2000079676A1 Direct current motor safety circuits for fluid delivery systems |
12/28/2000 | DE19928907A1 Steuerschaltung Control circuit |
12/27/2000 | CN1278121A Fuzzy control energy-saving device for three-phase asynchronous electric motor |
12/26/2000 | US6166930 Reduced common voltage in a DC matrix converter |
12/26/2000 | US6166869 Method and circuit for enabling rapid flux reversal in the coil of a write head associated with a computer disk drive, or the like |
12/20/2000 | EP1061649A1 Circuit arrangement and method for controlling a load |
12/12/2000 | US6160365 Interface module for a motor control system |