Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02P - Control or regulation of electric motors, generators, or dynamo-electric converters; Controlling transformers or reactors or choke coils › H02P 25 - Arrangements or methods for the control of ac-motors characterised by the kind of ac-motor or by structural details
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)
10/1999
10/21/1999DE19832876C1 Electrical reluctance machine control method e.g. for electric vehicle drive
10/20/1999EP0950281A1 Improved switched reluctance motor drive control system
10/19/1999US5969496 Method of controlling operation of synchronous motor and motor control apparatus for the same
10/13/1999EP0718962B1 Method and device for lowering induced voltage of induction motor
10/13/1999CN1231644A Transportation system and apparatus for remote handling
10/13/1999CN1045701C Motor control
10/12/1999US5965992 Charging capacitor during track following in disk drive to provide increased VCM voltage during a seek
10/12/1999CA2136760C Digital transducer system
10/07/1999DE19914228A1 System for controlling current through winding which defines machine phase of machine with connected reluctance SRM so that phase contains active and inactive intervals
10/07/1999DE19815232A1 Verfahren zur Erfassung eines Parameters eines Asynchronmotors A method for detecting a parameter of a asynchronous motor
10/06/1999EP0948126A2 Device for detecting parameter of an asynchronous motor
10/06/1999EP0948125A2 Energisation control of a switched reluctance motor
10/06/1999EP0947043A1 Power electronic unit for a synchronous motor
10/05/1999US5962951 Regenerative electric driver circuit
09/1999
09/30/1999WO1999049562A1 A solid state motor starter with energy recovery
09/30/1999CA2324110A1 A solid state motor starter with energy recovery
09/28/1999US5959440 Load control device for an AC circuit
09/28/1999US5959429 Variable speed controlling device for induction motor
09/28/1999US5959419 Energization controller of electric motor
09/22/1999CN1229535A Reluctance machine with fractional pitch winding and drive therefor
09/21/1999US5955861 Sensorless switched reluctance motor driving apparatus and method thereof
09/21/1999US5955799 Linear vibration motor and method for controlling vibration thereof
09/21/1999US5955798 Linear motor
09/21/1999US5955794 Method and arrangement for controlling the output of a load connected to an ac line voltage
09/15/1999EP0942522A2 Apparatus and method for controlling drive of three-phase multiplex winding motor
09/08/1999CN1227783A Reciprocatory dry shaver
09/07/1999US5949211 Switched reluctance motor with indirect position sensing and magnetic brake
09/01/1999EP0938773A1 Load power control method using a phase control system, and device therefor
08/1999
08/31/1999US5945801 Drive circuit for switched reluctance motor
08/31/1999US5945795 Electric means for driving single-coil motor
08/31/1999CA2168163C Switched reluctance motor providing rotor position detection at high speeds without a separate rotor shaft position sensor
08/25/1999CN1227010A Electrical machines
08/24/1999US5942875 Method and device for operating an asynchronous machine
08/24/1999US5942865 Driving apparatus of a switched reluctance motor
08/18/1999EP0829130B1 Switched reluctance motor with indirect position sensing and magnetic brake
08/17/1999US5939854 Circuit for driving a switched reluctance motor
08/11/1999EP0934218A1 Transportation system and apparatus for remote handling
08/10/1999US5936820 Overheating protection system of switching module
08/10/1999US5936386 Method of linearizing the performance of switched reluctance generators
08/10/1999US5936374 Repulsion motor
08/10/1999US5936373 Wide pole switched reluctance machine and method of its control
08/10/1999US5936372 Control device for a reluctance type synchronous motor
08/03/1999US5932981 Apparatus and method for reduced voltage controller
08/03/1999CA2176061C A power converter and control system for a motor using an inductive load and method of doing the same
07/1999
07/29/1999WO1999038249A1 Method and apparatus for controlling switched reluctance motor
07/29/1999DE19851479A1 Controller for current commutation motor with a phase cut-off controller and rising and falling torque
07/29/1999DE19802711A1 Load reduction of double turbine in dirt suction apparatus
07/27/1999US5929590 Method and apparatus for implementing sensorless control of a switched reluctance machine
07/27/1999US5929541 Synchronous machine
07/22/1999WO1999037014A1 A driver circuit for a synchronous, alternating-current electric motor
07/21/1999EP0930696A1 A driver circuit for a synchronous, alternating-current electric motor
07/20/1999US5926011 For an electrical load
07/20/1999US5926000 Apparatus for obtaining three-phase position detection signals by means of two coils
07/14/1999EP0928493A1 System and method for servo control of nonlinear electromagnetic actuators
07/13/1999US5923143 Used with a multi-phase motor and a multi-phase power source
07/13/1999US5923142 Power converter
07/13/1999US5923141 Current control circuit
07/07/1999EP0782781B1 Electronically switched reluctance motor
07/06/1999US5920176 C-Dump topology noise reduction
07/06/1999US5920175 Instantaneous position indicating apparatus for a sensorless switched reluctance machine system
07/06/1999US5920164 Brushless linear motor
06/1999
06/29/1999US5917302 Harmonic current attenuating device of a motor
06/29/1999CA2046268C Process and device for controlling single-phase or multiphase a.c. controllers
06/23/1999EP0924848A2 Series motor with commutator
06/23/1999EP0923805A1 Instantaneous position indicating apparatus for a sensorless switched reluctance machine system
06/16/1999EP0923191A1 Commutation controller
06/16/1999CN1219799A Commutation controller
06/15/1999US5912542 Variable load inductance compensation for motor drive circuits
06/09/1999EP0921631A1 Speed control method for a monophase asynchronous motor
06/09/1999EP0921629A1 Control circuit for an universal motor
06/09/1999CN1219018A Electric motor speed and direction controller and method
06/08/1999CA2151067C Current decay control in switched reluctance motor
06/03/1999WO1999027643A1 Commutator motor control system
06/03/1999WO1999027642A1 Commutator motor control system
05/1999
05/27/1999DE19752098A1 Control circuit for universal motor, e.g. for washing machines or driers
05/26/1999CN1217605A Drive device without sensor for switch-type reluctance motor and method therefor
05/19/1999EP0916178A1 Electrical machines
05/18/1999US5905351 Actuator controller using periodic signal
05/18/1999CA2010673C Current chopping strategy for switched reluctance machines
05/12/1999CN1043395C Method and apparatus for controlling single phase induction motor
05/11/1999US5903127 Method and apparatus for controlling current in a switched reluctance motor
05/06/1999WO1999013563A3 A method of linearizing the performance of switched reluctance generators
05/06/1999EP0843912B1 Process and device for operating an asynchronous motor
05/04/1999US5901008 Voice coil driven positioner for coarse and fine positioning of magnetic head in multi-track tape drive
05/04/1999US5900712 Transistor drive circuit and control for a switched reluctance motor
04/1999
04/29/1999DE19848790A1 Motor with switched reluctance e.g. for machine tool
04/29/1999DE19747412A1 Method for synchronising synchronous drive ECG with current space vector using digital field orientation
04/29/1999DE19747410A1 Method for synchronising synchronous drive EMF with current space vector using digital field orientation
04/28/1999EP0911957A1 Single-phase asynchronous motor with two windings
04/28/1999EP0911955A1 Drive circuit for switched reluctance motor
04/28/1999EP0911954A1 PWM drive system in a current mode.
04/28/1999EP0910892A1 Absolute angle estimation apparatus for a sensorless switched reluctance machine system
04/28/1999EP0910891A1 Synchronous sampling circuit for a sensorless switched reluctance machine system
04/28/1999EP0910890A1 Switched reluctance machine capable of improved fault operation
04/28/1999EP0910887A1 Reluctance machine with fractional pitch winding and drive therefor
04/28/1999EP0769221B1 Load-commutated synchronous motor drive
04/28/1999CN1215248A Harmonic current attenuator for electric motor
04/27/1999US5896951 Optimization of magnetizing current in linear induction motors
04/22/1999WO1999019615A1 Method for controlling an electromechanical actuating device
04/20/1999US5896020 Driving circuit for a switched reluctance motor
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