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 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage
Patents for H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage (13,284)
12/1998
12/30/1998EP0887918A2 Improved phase controller for intermittently supplying an AC motor with electric power
12/30/1998EP0887915A2 Multi-channel motor winding configuration and pulse width modulated controller
12/30/1998CN1203481A Phase controller for AC motor
12/29/1998US5854548 Electrical angle detecting device and synchronous motor drive device
12/29/1998US5854547 Control system for permanent magnet synchronous motor
12/23/1998WO1998058444A1 Method of inferring initial pole position of permanent magnet brushless motor
12/23/1998EP0886369A2 Method of and device for controlling pulse width modulation inverter
12/22/1998US5852356 DC/AC inverter for power supply to an electrical motor for the traction of a vehicle
12/16/1998EP0883511A1 Regulator device for an asynchronous machine used in particular as a drive for electric vehicles
12/16/1998CN1202035A Method of and apparatus for starting AC electric motor
12/09/1998EP0883232A1 Method of and apparatus for starting ac electric motor
12/09/1998CN1041073C Control system for electric vehicle
12/08/1998US5847536 Motor control circuit equipped with correction means therein
12/08/1998US5847534 Control system for electric vehicle
12/02/1998EP0661796B1 Apparatus and method for controlling current of variable speed driver
12/02/1998CN1200846A Power converter and power converting method
12/02/1998CN1200596A Morotor control apparatus
11/1998
11/26/1998WO1998053551A1 Method for controlling an asynchronous machine
11/26/1998DE19821887A1 Converter circuit arrangement and operating procedure for multiphase induction of synchronous motors
11/24/1998US5841264 Method of stepwise voltage control for supplying an induction motor
11/24/1998US5841263 Frequency dependent current control system for an AC motor
11/19/1998DE19720697A1 Verfahren zur Steuerung einer Asynchronmaschine Method for controlling an asynchronous machine
11/17/1998US5838144 Solid state, reduced voltage motor starter enabling equalized input/output volt-amp ratings
11/12/1998WO1998051002A1 Motor control apparatus
11/11/1998EP0877474A2 Weakening-field control of a motor
11/11/1998EP0877471A1 A solid state, reduced voltage motor starter
11/11/1998CN1198610A Solid state motor voltage-reducing starter capable of equalizing input/output volt-ampere nominal rating
11/10/1998US5835371 Bridge type power converter
11/10/1998US5834910 Ac motor controlling apparatus
11/07/1998CA2234949A1 A solid state, reduced voltage motor starter enabling equalized input/output volt-amp ratings
11/03/1998US5831842 Active common mode canceler
10/1998
10/29/1998WO1998048507A1 Injection molding machine
10/29/1998WO1998048090A1 Drive unit for a shaft of a device working in synchrony with the shanks of a mechanical loom to form a leno selvage
10/27/1998US5828199 Variable speed controller for an induction motor
10/21/1998CN1040383C Electric power changing apparatus
10/20/1998US5825152 Load-commutated synchronous motor drive
10/20/1998US5825146 Motor drive device
10/20/1998US5825141 Motor control apparatus
10/14/1998EP0871285A1 Feedback control system for producing PWM control signals
10/14/1998CN1195922A Method and apparatus for controlling current in switched reluctance motor
10/14/1998CN1195921A Current control apparatus in switched reluctance motor
10/13/1998US5821727 Induction motor control unit
10/13/1998US5821717 Method and circuit for driving a hard disk drive spindle motor
10/08/1998WO1998044623A1 Transformer type converter
10/06/1998US5818185 Process and device for monitoring and controlling the speed of rotation of an electric drive with frequency converter for hoisting gears
10/01/1998WO1998043347A1 Device and method for controlling induction motor
10/01/1998DE19711534A1 Method for regulating the continuous voltage of a current rectifier
09/1998
09/30/1998EP0868028A2 Pulse width modulation circuit
09/29/1998US5814966 Digital power optimization system for AC induction motors
09/23/1998EP0866339A1 Method and circuit to regulate a motor
09/23/1998EP0766886B1 Method of stepwise voltage control for supplying an induction motor
09/22/1998US5811956 Apparatus and method for controlling torque of induction motor through vector control type inverter
09/22/1998US5811953 Motor driving circuit and method
09/17/1998WO1998040964A1 Induction motor controller
09/17/1998DE19808671A1 Motor control circuit
09/16/1998CN1193217A 逆变器装置 The inverter device
09/15/1998US5808882 Three-phase bridge rectifier
09/08/1998US5805438 Current controlled PWM inverter for driving a motor without gain adjustment
09/08/1998US5804973 Control device in an electric vehicle
09/08/1998US5804868 Semiconductor device having planar junction
09/02/1998CN1191909A Washing machine and method for controlling the same
09/01/1998US5801911 Electric compressor driving apparatus for automobile
09/01/1998US5801508 Apparatus for controlling a polyphase AC motor in quick-torque and high-efficiency modes
09/01/1998US5801498 Control system for electric vehicle
08/1998
08/27/1998WO1998029934A3 Electric motor
08/26/1998EP0860938A1 Power controlling method for vaccum-cleaner
08/26/1998CN1191411A Motor drive
08/25/1998US5798628 Inverter control system which dynamically varies a voltage vector applied to the inverter based on primary flux and torque deviations
08/19/1998EP0859456A1 Control circuit for an electric motor
08/19/1998EP0859452A1 Method and device for power control of electric consumers connected to an alternating voltage supply network
08/18/1998US5796599 Self-powered gate driver board
08/18/1998US5796277 Power-transistor driving circuit for a single power source
08/18/1998US5796228 Method of controlling rotary magnet multi-phase synchronous motor and control therefor
08/18/1998US5796224 Control system for electric vehicle
08/13/1998DE19703248A1 Verfahren und Vorrichtung zur Bestimmung einer Drehzahl einer geberlosen, feldorientiert betriebenen Drehfeldmaschine Method and apparatus for determining a rotational speed of a sensorless, field-oriented induction machine
08/11/1998US5793623 Air conditioning device
08/11/1998US5793182 Circuit arrangement for powering a load
08/06/1998WO1998034337A1 Means and device for determining the angular velocity of a rotor of polyphase machine operated by field orientation without a transmitter
08/06/1998WO1998034336A1 Driving mechanism for industrial installations, in particular for primary industry installations
08/06/1998DE19704122A1 Antriebseinrichtung für Industrieanlagen, insbesondere für Anlagen der Grundstoffindustrie Drive means for industrial plants, especially for plants in the basic industries
08/06/1998CA2279305A1 Method and device for determining the angular velocity of a rotor of a polyphase machine operated by field orientation without a transmitter
08/05/1998EP0856936A1 Motor controller
08/05/1998CN1189440A Current/voltage control apparatus for elevator system
08/04/1998US5789894 Solid state motor speed control
07/1998
07/14/1998US5781423 Pulse width modulation control system for electric power converter
07/14/1998US5780990 Parasynchronous induction motor control method and apparatus
07/14/1998US5780984 Apparatus and method for controlling rotation frequency of infinite variable-speed drive
07/09/1998WO1998029934A2 Electric motor
07/08/1998EP0852425A1 Power converter and power converting method
07/08/1998CN1187065A Inverter controller
07/07/1998US5777452 Corrector, apparatus, and a method for controlling the electromagnetic torque of an asynchronous machine
07/02/1998DE19757688A1 Inverter device e.g. for driving asynchronous motor
07/01/1998CN1186376A Semiconductor power conversion apparatus
07/01/1998CN1186205A Method for compensating dead time of compressor in air conditioner
07/01/1998CN1038971C 变速系统 Transmission system
06/1998
06/30/1998US5774353 Fixture for motor controller power substrate and motor controller incorporating
06/25/1998WO1998027641A1 Overvoltage protective circuit for step-down converter
06/25/1998DE19652186A1 Elektrischer Motor Electric Motor
06/24/1998EP0849872A1 Induction motor controller
06/17/1998EP0848492A1 Method for diagnosing abnormality of circuit member of inverter driving controller for driving and controlling motor
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