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 23 - Arrangements or methods for the control of ac-motors characterised by a control method other than vector control
Patents for H02P 23 - Arrangements or methods for the control of ac-motors characterised by a control method other than vector control (5,487)
09/2000
09/07/2000DE19909706A1 Verfahren und Schaltungsanordnung zur Abbildung der Netzspannung bei rückspeisefähigen Versorgungsgeräten Method and circuit arrangement for imaging the mains voltage in regenerative supply equipment
08/2000
08/29/2000US6111386 Method for controlling an asynchronous machine
08/29/2000CA2215736C Motor control circuit
08/29/2000CA2215090C Control circuit for two speed motors
08/24/2000WO2000049708A1 Method for controlling an electrical machine and an inverter
08/23/2000CN1264211A Device and method for eliminating variable deviation capacity of current detectiong signal
08/22/2000US6107763 Closed loop and open synchronization of the phase switchings in driving a DC motor
08/15/2000US6104566 Direct access storage device (DASD) with a variable spindle rotation speed
08/09/2000EP1026562A2 Servo controller
08/08/2000CA2152028C Variable speed generator-motor apparatus capable of improving accuracy of power system
08/02/2000EP1023649A1 Method and circuit for monitoring the operating condition of electric motors
08/01/2000US6097171 Method and apparatus for controlling an induction motor
07/2000
07/25/2000US6094364 Direct torque control inverter arrangement
07/18/2000US6091222 Statistical phase detection and go start-up algorithm
07/12/2000EP1018212A1 Direct torque control inverter arrangement
06/2000
06/28/2000EP1012952A1 Dynamo-electric machines and control and operating system for the same
06/27/2000US6081092 Driver circuit for a synchronous, alternating current electric motor
06/21/2000EP1010089A1 A microprocessor-controlled drive unit for electrically operated devices
06/14/2000CN1053533C Economical wide range speed control system
06/06/2000US6072296 Asynchronous motor for a drive mechanism, such as hoists or running gears, with controllable rotational speed and rotational direction
06/06/2000US6072294 Method and system for measuring output torque of a motor
06/06/2000US6072291 Frequency converter for an electromotor
06/06/2000US6072287 Polyphase AC machine controller
05/2000
05/25/2000WO2000029853A1 Methods and apparatus for a real-time motor controller
05/23/2000US6066934 Induction motor controller
05/23/2000US6065231 Motor drive method and drive circuit
05/18/2000WO2000028334A1 Device and method for generating a partially synthesized signal with very good dynamic quality for the acceleration of a rotor in an electrical drive mechanism
05/17/2000EP1001521A2 Motor control device and method, and take-up winding system
05/11/2000DE19851003A1 Einrichtung und Verfahren zur Gewinnung eines dynamisch hochwertigen, teilweise synthetisierten Signals für die Beschleunigung des Läufers eines Antriebs Apparatus and method for obtaining a high-quality dynamic, partially synthesized signal for the acceleration of the rotor of a drive
05/10/2000EP0999639A1 Control method for a rotating electric machine, control device for using the same and rotating machine with this control device
05/10/2000EP0999632A1 Stop control device for single-phase asynchronous motor with capacitor
05/09/2000US6060850 Electric motor control circuit
05/03/2000CN1052123C Speed variable generator-motor arrangement for improving stability of power system
05/02/2000US6057661 Method of detecting an abnormal load on a servomotor and controlling the same in such an abnormal condition
04/2000
04/26/2000EP0995260A1 Rotating electric motor system capable of vibrating and method for operating a rotating electric motor capable of vibrating
04/12/2000EP0991484A1 Method and device for reducing or compensating rotational speed losses during insertion of rolling stock in a roll stand
04/05/2000EP0990302A1 Electronically commutated engine
04/05/2000CN1051182C Device for controlling speed of rotating DC motor
03/2000
03/30/2000WO2000017998A1 Motor controller
03/30/2000DE19945656A1 Control circuit for motor, has phase coils excited selectively by single phase power source in which currents in both coils are displaced relatively in phase
03/28/2000US6043619 Method and circuit arrangement for commutation of a multiple winding electric motor
03/21/2000CA2148633C Motor drive with programmable function switches
03/15/2000CN1247645A Motor controller
03/15/2000CN1050467C Motor control appts. equiped with control means for controlling rotational position of motor
03/14/2000US6037736 Apparatus for determination of control constant
03/14/2000US6037734 Motor velocity controlling method employing detection of all side edges of phase signals of an encoder to generate control target values for updating a motor control command
02/2000
02/29/2000US6031966 Motor speed control device
02/24/2000DE3645316C2 Washing machine control
02/23/2000CN1049775C Speed controlling method for rotary dc motor and apparatus thereof
02/01/2000US6020707 Servo-motor driving method
01/2000
01/25/2000US6018224 Anti-clipping circuit for induction motor drive system
01/13/2000WO1999057802A3 Device for regulating rotational speed
12/1999
12/28/1999CA2033450C Method and apparatus for controlling reciprocation of movable mirror for photoacoustic fourier transform spectroscopy
12/22/1999EP0965725A1 End of travel detecting device for a bidirectionally mobile element, especially roller shutter drum, and driving device of bidirectionally mobile element equipped with such end of travel device
12/22/1999EP0965724A1 Driving device for a bi-directionally rotatable tubular roll, drum of roller shutter equipped with such driving device, roller shutter equipped with such winding drum
12/22/1999EP0964974A1 An operating system for electrically operated devices such as doors, windows and the like, and drive unit for the use in such a system
12/22/1999CN1047700C Motor speed controller
12/21/1999US6005784 Voltage type inverter device and method of controlling the same
12/07/1999US5998954 Electrical actuator with a refined cascade control unit
12/01/1999CN1047042C Motor ratational speed control apparatus
11/1999
11/30/1999US5994870 Method of estimating field pole position of synchronous motor, motor controlled, and electric vehicle
11/30/1999US5994868 Motor control device
11/30/1999US5992383 Control unit having a disturbance predictor, a system controlled by such a control unit, an electrical actuator controlled by such a control unit, and throttle device provided with such an actuator
11/25/1999DE19823379A1 Signalgeber für die Drehzahl- und Drehrichtungsermittlung von Elektromotoren Signal generator for the speed and direction determination of electric motors
11/23/1999US5990656 Frequency detector
11/23/1999US5990645 Mechanical vibration detector and vibration damping controller
11/17/1999EP0957566A2 Asynchronous motor with controllable speed and direction of rotation for drive units, in particular for hoisting units or running gears
11/17/1999EP0956640A2 Current regulated multiphase motor driver with a common current sense element
11/17/1999CN1235709A Rotating machine integrated with controller and inverter
11/16/1999US5986428 Method for controlling acceleration/deceleration of an induction motor and a control device
11/11/1999WO1999057802A2 Device for regulating rotational speed
11/11/1999DE19819956A1 Vorrichtung zur Drehzahlregelung Device for speed control
11/03/1999EP0954092A2 Drive control apparatus for electric synchronous machine having field winding
10/1999
10/28/1999DE19910755A1 Linear current sensing circuit for motor controller
10/27/1999CN1046067C Motor drive unit and method for controlling the motor drive unit
10/26/1999US5973473 Motor control circuit
10/26/1999US5973461 Method and device for starting and synchronizing a three-phase motor
10/21/1999WO1999053607A1 Method and device for controlling a static converter powering an electrical source
10/21/1999CA2324882A1 Method and device for controlling a static converter powering an electrical source
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
10/06/1999EP0948124A1 Motor controller
10/06/1999EP0947043A1 Power electronic unit for a synchronous motor
10/05/1999CA2153111C Air conditioning device
09/1999
09/30/1999DE19813362A1 Verfahren zur Bestimmung der Ausgangsspannung eines Zweipunkt-Wechselrichters Method for determining the output voltage of a two-level inverter
09/29/1999EP0945970A2 Method for determining the output voltage of a two-level inverter
09/28/1999US5959429 Variable speed controlling device for induction motor
09/14/1999US5953490 Circuit for speed control for a one-phase or three-phase motor
09/07/1999US5949158 Method and arrangement for controlling the output of electrical consumers connected to an AC line voltage
09/01/1999EP0939473A2 Motor controller based on pwm system
08/1999
08/31/1999US5945802 Ground fault detection and protection method for a variable speed ac electric motor
08/26/1999DE19907757A1 Speed controller for motor with resilient shaft connection to load
08/24/1999US5942868 Speed and phase controller for motor and video cassette recorder having same
08/18/1999EP0936729A1 Rotating machine integrated with controller, and inverter
08/17/1999US5940286 Method for controlling the power to be transferred via a mains inverter
08/11/1999EP0935337A2 Control device for a household electrical appliance, with a non-volatile memory easily reprogrammable from the outside
08/03/1999US5933344 Microprocessor having timer circuit generating complementary non-overlapped PWM signals
08/03/1999US5932980 Driven by an electric motor
07/1999
07/30/1999CA2259712A1 Method and apparatus for controlling an induction motor
07/29/1999WO1999027644A3 Current regulated multiphase motor driver with a common current sense element
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