Patents for H02P 29 - Arrangements for regulating or controlling electric motors, appropriate for both ac- and dc-motors (5,779) |
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06/25/2003 | EP1321838A2 Motor controlling serial communication device |
06/25/2003 | EP1321837A2 Servo controller |
06/25/2003 | CN1426545A Method of detecting criticality of servo control system |
06/25/2003 | CN1112275C Electromagnetic driving device |
06/24/2003 | US6583598 Damping of resonant peaks in an electric motor which is operated using a converter with an intermediate voltage circuit, by means of matched impedance to ground at the motor star point, and a corresponding electric motor |
06/19/2003 | US20030111973 Servo controller |
06/17/2003 | US6580874 Field current control method in motor |
06/17/2003 | US6580243 Opening/closing control apparatus of opening/closing body for vehicle and method thereof |
06/10/2003 | US6577173 Inductive load driving circuit |
06/05/2003 | US20030103306 Device for detecting failure of field effect transistor |
06/05/2003 | US20030102746 Magnetic bearing controller |
05/29/2003 | US20030098298 Method of controlling preheating power and mechanism for providing preheating |
05/28/2003 | CN1421065A 同步补偿 Synchronous Compensator |
05/27/2003 | US6570361 Rotating induction apparatus |
05/21/2003 | EP1313207A1 Electric motor control device |
05/21/2003 | CN1419507A Power-assisted steering system of an automobile |
05/15/2003 | WO2003041260A1 Current ripple reduction by harmonic current regulation |
05/15/2003 | US20030091441 Fan control system using a microcontroller |
05/15/2003 | US20030090232 Current ripple reduction by harmonic current regulation |
05/13/2003 | US6563277 Belt-drive-control circuit and electrophotographic device |
05/13/2003 | US6563203 Diode chip prevents reverse current |
05/08/2003 | WO2003038986A1 Circuit for operating an electric motor |
05/08/2003 | US20030088382 Angle or position detecting apparatus, method thereof, servo apparatus, and servo method, and motor |
05/07/2003 | EP1308801A1 Motor drive for a motor with feedback potentiometer |
05/07/2003 | EP1157914B1 System for controlling electric motors used for the propulsion of a transport trolley |
05/07/2003 | EP0935834B1 System and related methods for detecting and measuring the operational parameters of a garage door |
05/02/2003 | EP1306967A1 Inverter device and current limiting method therefor |
05/01/2003 | WO2002100704A3 Velocity compensation control for electric steering systems |
05/01/2003 | US20030080709 Arrangement with an electric motor |
05/01/2003 | US20030080705 Motor controller for a motor with feedback potentiometer |
04/29/2003 | US6556778 Active current-limiting control for dc motor speed regulation |
04/24/2003 | WO2003034582A1 Method for regulating an electric motor and corresponding electric motor |
04/24/2003 | WO2003034581A2 Method for operating an electronically commutated motor, and motor for carrying out one such method |
04/24/2003 | US20030076065 Active temperature estimation for electric machines |
04/24/2003 | US20030076064 Feedforward parameter estimation for electric machines |
04/24/2003 | US20030076061 Combined feedforward and feedback parameter estimation for electric machines |
04/24/2003 | US20030075998 Mesh connected electrical rotating machine with span changing |
04/23/2003 | EP1203270B1 Method and device for reducing torsional vibrations in an internal combustion engine |
04/23/2003 | CN1412925A Power inverter |
04/17/2003 | WO2003032480A1 Motor control system |
04/17/2003 | WO2003032460A1 Motor control circuit overcurrent protection |
04/17/2003 | US20030074120 Method and apparatus for motor velocity measurement compensation in electric power steering damping |
04/17/2003 | US20030072117 Electric power conversion apparatus |
04/17/2003 | US20030071594 Feedback parameter estimation for electric machines |
04/17/2003 | US20030071593 Multi-mode motor controller chip set |
04/17/2003 | US20030071592 Controlling device for AC/DC driven motor |
04/16/2003 | EP1303036A2 Multi-mode motor controller chip set |
04/16/2003 | EP1302385A2 Method and apparatus for generating a compensated motor velocity output value for an electric power steering motor |
04/15/2003 | US6548975 Stall detection and thermal protection of vehicular systems having an electric motor |
04/10/2003 | US20030067507 Motor control method in recording apparatus and recording apparatus |
04/10/2003 | US20030067277 Method and system for early detection of incipient faults in electric motors |
04/08/2003 | US6543572 Electric power steering apparatus |
04/03/2003 | WO2003028203A1 Cascade with electronic disconnection and an enlarged rotational speed range |
04/03/2003 | WO2003027911A1 Method for selecting drive motor and decelerator which constitute actuator |
04/03/2003 | US20030063900 Linear electric motor controller and system for providing linear speed control |
04/03/2003 | US20030061879 Variable speed fan motor equipped with abnormal rotational speed detection means |
04/02/2003 | EP1298771A2 Controller for a motor starter |
04/01/2003 | US6541884 Pump unit particularly for medical and food use |
03/27/2003 | US20030058589 Motor power supply line breaking detection method, motor control apparatus and electric power steering mechanism using the same and computer program thereof |
03/27/2003 | US20030057907 Methods and apparatus for controlling brushless motors |
03/27/2003 | US20030057906 Drive control system for a multiphase motor powered by a power converter |
03/27/2003 | US20030057901 Method for detecting oscillation criticality of servo control system |
03/27/2003 | US20030057899 Linear electric motor controller and system for providing linear control |
03/27/2003 | US20030057305 Motor control circuit for paper shredders |
03/26/2003 | EP1296445A1 Magnetic bearing controller |
03/26/2003 | EP1295386A1 Drive circuit for a brushless dc motor |
03/26/2003 | EP1110128B1 Method and apparatus for energising rotation-translation converters |
03/26/2003 | EP1032867B1 Process and drive for torque-controlled driving of a machine |
03/26/2003 | CN1405970A Drive circuit of actuating device |
03/20/2003 | US20030052633 Control device for electric-powered motor and designing method thereof |
03/18/2003 | US6534944 Servo controller |
03/13/2003 | WO2003021762A1 Machine model predicting device of motor control device |
03/13/2003 | WO2003021123A1 Device and method used to automatically compensate for synchronous disturbances |
03/12/2003 | EP1292012A2 Motor power supply line breaking detection method, motor control apparatus and electric power steering mechanism using the same and computer program thereof |
03/11/2003 | CA2129335C Circuit arrangement for mitigating power switch capacitance |
03/06/2003 | US20030042861 System and method for predicting mechanical failures in machinery driven by an induction motor |
03/05/2003 | EP1288746A1 Method of detecting oscillation criticality of servo control system |
03/05/2003 | EP0736234B1 Method and apparatus for transducerless flux, position and velocity estimation in drives for ac machines |
03/05/2003 | CN1400946A Ship propulsion system comprising a control that is adapted with regard to dynamics |
02/27/2003 | WO2003017459A1 Electric motor controller resonance frequency detection apparatus |
02/27/2003 | US20030040817 Autotuning method and system based on the bilinear-quadratic filter |
02/27/2003 | US20030039473 Active current-limiting control for dc motor speed regulation |
02/26/2003 | EP1286457A1 Servo control method and device for dc motor |
02/26/2003 | EP1286456A1 Feedback parameter estimation for electric machines |
02/26/2003 | EP1286145A1 Feedforward parameter estimation for electric machines |
02/26/2003 | EP1285841A1 Active temperature estimation for electric machines |
02/25/2003 | US6525506 Current limit circuit of inverter refrigerator |
02/25/2003 | US6525496 Process and drive for torque-controlled driving of a machine |
02/19/2003 | EP1284541A2 Combined feedforward and feedback parameter estimation for electric machines |
02/19/2003 | EP1284044A1 Controlling a brushless dc motor |
02/18/2003 | US6522097 Position detecting apparatus and abnormality detecting apparatus |
02/18/2003 | US6522094 Motor overload coil control and method of calculating operating temperature |
02/13/2003 | WO2003011731A1 Method for correcting speed feedback in a permanent-magnet motor |
02/12/2003 | EP1283593A1 Motor controller |
02/12/2003 | CN1396703A 钢板轧制装置 Steel rolling equipment |
02/11/2003 | US6518722 Control system, observer, and control method for a speed-sensorless induction motor drive |
02/11/2003 | US6518719 Power tools with operating speed control circuit |
02/11/2003 | US6518718 Speed electromotive force phase control system adapted to low speed |
02/06/2003 | WO2003010880A1 Speed control device |
02/05/2003 | EP1281230A1 Synchronous compensation |