Patents for H02P 25 - Arrangements or methods for the control of ac-motors characterised by the kind of ac-motor or by structural details (7,591) |
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02/04/2010 | US20100026228 Variable field permanent magnet dynamoelectric machine |
02/03/2010 | EP2149972A1 Alignment apparatus and exposure apparatus using the same |
02/02/2010 | CA2481614C System and method for bypassing a motor drive |
01/28/2010 | US20100019714 Alternating current machine with increased torque above and below rated speed for hybrid electric propulsion systems |
01/28/2010 | US20100019711 Motor with controllable rotor-pole magnetic intensity |
01/27/2010 | CN100586005C Method for controlling a reluctance motor |
01/27/2010 | CN100586004C Electric wind motor and electric dust collector using the same |
01/26/2010 | US7652387 Stator controlled induction generators with short-circuited rotor |
01/21/2010 | US20100013300 Device and method for supplying electrical power to at least one induction machine on board an aircraft |
01/20/2010 | EP2146426A1 Method for operating a drive device and drive device for implementing the method |
01/20/2010 | CN100583622C Method for position and/or speed control of a linear drive |
01/14/2010 | DE102008031268A1 Verfahren und Vorrichtung zum Betreiben einer Asynchronmaschine Method and apparatus for operating an asynchronous machine |
01/13/2010 | CN100581048C High-phase order generator |
01/13/2010 | CN100581046C Linear motor system |
01/12/2010 | US7646155 Generic motor control system |
01/07/2010 | WO2010000343A1 Method and apparatus for control of electrical machines |
01/06/2010 | EP2140546A2 Method of starting a synchronous motor with a brushless dc exciter |
12/30/2009 | WO2008130700A3 Method of starting a synchronous motor with a brushless dc exciter |
12/30/2009 | CN201374677Y Three-phase digital power saver |
12/30/2009 | CN201374664Y Thyristor-type cam controller and reversing device and speed adjusting device thereof |
12/30/2009 | CN100576718C Control device of electromotor |
12/24/2009 | DE102008027720A1 Method for sensorless position detection of electrical adjusting or positioning drive, involves determining position of rotor of direct current motor based on specific equation by comparing inductance stored in storage unit |
12/23/2009 | CN101610057A Three-motor common-drive spiral tower system of spiral freezer |
12/23/2009 | CN100574083C Semiconductor device for driving motor and motor having the same |
12/17/2009 | WO2009150794A1 Motor drive circuit |
12/17/2009 | WO2009150714A1 Regenerative switched reluctance motor driving system |
12/16/2009 | EP2044684B1 Variable voltage supply system |
12/16/2009 | CN201365220Y Single-phase brushless motor rotation-speed control circuit |
12/15/2009 | USRE41036 Linear actuator control structure |
12/10/2009 | US20090302792 AC rotating machine with improved drive for its stator coil |
12/10/2009 | US20090302787 Induction and switched reluctance motor |
12/10/2009 | US20090302703 Electromagnetic motor employing multiple rotors |
12/09/2009 | CN101599739A Single-phase motor commutation control system of lifting equipment |
12/09/2009 | CN100568686C Method for controlling operation of compressor and apparatus thereof |
12/09/2009 | CN100568684C Motor driving apparatus |
12/09/2009 | CN100567731C Electromagnetic pump driving method |
12/08/2009 | US7630616 Coil load driving circuit and optical disc device |
12/08/2009 | US7629760 Controlling device for range switch mechanism |
12/03/2009 | US20090295318 Motor and drive control system thereof |
12/03/2009 | DE102008002119A1 Verfahren zur Drehzahlregelung, elektrischer Antrieb und Elektrowerkzeug Method for speed control, electric propulsion and electric tools |
12/02/2009 | EP2128975A1 Control device and method for determining the motor rotor position |
12/02/2009 | CN100566129C Constant slip frequency vector control method and system for linear induction motor |
11/25/2009 | EP2122304A2 Controlling a power of an electrical motor |
11/25/2009 | CN201352780Y Undisturbed switching intelligent frequency control system for medium-voltage motor |
11/24/2009 | US7622875 Controller for motor |
11/19/2009 | US20090284192 Electric motor with a permanent magnet carrier rotating a sprocket |
11/18/2009 | EP2119914A1 Inverter compressor operation method and compressor drive device |
11/18/2009 | CN201349197Y Digital alternating current silicon controlled speed-regulating control device |
11/18/2009 | CN201349196Y Power tool and control module for same |
11/18/2009 | CN201349192Y Position measuring and speed measuring and controlling device for rotor of synchronous motor |
11/17/2009 | US7619377 Linear motor system |
11/12/2009 | WO2009136504A1 Precision positioning device |
11/12/2009 | WO2009111104A3 Self-calibration algorithms in a small motor driver ic with an integrated position sensor |
11/12/2009 | DE102008022077A1 Schaltung zur Speisung einer Antriebsmaschine mit mehreren Wicklungssystemen Circuit for supplying a driving machine with several winding systems |
11/11/2009 | EP2117110A2 System for generating electrical energy |
11/11/2009 | CN201345637Y Power-saving device for AC asynchronous motor |
11/11/2009 | CN201345636Y Motor power device electricity-saving controller |
11/11/2009 | CN101577479A Combined type cylindrical superconducting linear motor |
11/11/2009 | CN100559696C Motor drive circuit |
11/10/2009 | US7615948 Controller for motor and control method for motor |
11/05/2009 | US20090273308 Position sensorless control of permanent magnet motor |
11/03/2009 | US7612519 Control arrangement for an induction motor compressor having at least three windings, a torque-augmentation circuit, a starting capacitor and a resistive element |
10/28/2009 | CN101567652A Permanent magnet motor start-up |
10/28/2009 | CN100555820C Planar motor |
10/28/2009 | CN100555816C Vehicle drive system and vehicle comprising it |
10/27/2009 | US7609012 Motor control apparatus |
10/22/2009 | WO2009128287A1 Electric motor |
10/22/2009 | WO2009099342A3 Electromagnetic field energy recycling |
10/22/2009 | US20090261767 Universal apparatus and method for configurably controlling a heating or cooling system |
10/21/2009 | CN201332381Y Speed regulating device applied to coiling type asynchronous motor |
10/21/2009 | CN101562423A Power supply equipment for linear motor with corresponding double winding and drive for vehicle moving along running track |
10/21/2009 | CN100552572C Control apparatus for electric actuator |
10/20/2009 | US7605552 Control apparatus for electric vehicles |
10/15/2009 | WO2009125732A1 Mold clamping device |
10/15/2009 | WO2009050664A3 Method for analysing the operation of an electromechanical actuator for the powered manoeuvre of a screen, and actuator for implementing same |
10/14/2009 | CN101557194A Motor driving apparatus |
10/13/2009 | CA2490089C Motor with additional windings |
10/08/2009 | WO2009122954A1 Electrically-powered actuator driving control apparatus and driving control method and vehicle having electrically-powered actuator driving control apparatus |
10/08/2009 | US20090251020 Permanent magnet dynamoelectric machine with variable magnetic flux excitation |
10/08/2009 | DE102008016814A1 Controller for switched-reluctance machine, has discriminator whose input is connected with output of comparator, where discriminator regulates output signal and includes information that is provided on actual rotor position |
10/08/2009 | DE102008015717A1 Schaltungsanordnung zum sensorlosen Betreiben eines Universalmotors eines Hausgeräts und entsprechendes Verfahren Circuitry for sensorless operation of a universal motor of a household appliance and corresponding method |
10/07/2009 | CN101552591A Method and apparatus for torque ripple reduction |
10/07/2009 | CN101552588A An electric motor control device and an electric motor control system |
10/07/2009 | CN100547902C An electromotor precursor circuit |
10/06/2009 | US7599172 Electronic speed controller with modular layout |
10/06/2009 | US7598690 Start-up circuit for DC fan |
10/06/2009 | CA2499968C System and method for configurable motor controller settings |
10/01/2009 | WO2009119810A1 Servo motor position control device |
10/01/2009 | WO2009119648A1 Linear motor unit and electronic component placing apparatus provided with the linear motor unit |
10/01/2009 | WO2009118299A2 Circuit arrangement for the sensorless operation of a universal motor of a domestic device and corresponding method |
10/01/2009 | WO2009118135A1 Method for controlling of a multiphase electric motor operating in star-connected mode verfahren zum ansteuern eines mehrphasigen in sternschaltung betriebenen elektromotors |
10/01/2009 | US20090241276 Power toothbrush with adjustable operation |
10/01/2009 | DE102008016472A1 Circuit arrangement for operating universal motor of washing machine, has potential transformer coupled with electrical machine to convert supply voltage into operating voltage, where control- and/or regulating unit controls transformer |
09/30/2009 | EP2106019A1 Method for controlling operation of a linear vibration motor |
09/30/2009 | EP2106018A1 Electrocmagnetic actuator driving method |
09/30/2009 | EP2105117A2 Algorithm for power drive speed control |
09/30/2009 | CN201319581Y Separately-excited motor controller |
09/24/2009 | WO2009116453A1 Camera system, device for driving voice coil motor, and method for driving voice coil motor |
09/24/2009 | WO2009115330A1 Method and device for controlling a brushless ac motor |
09/24/2009 | WO2008152236A3 Reciprocating actuator with closed loop servocontrol |