| 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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| 03/15/2001 | WO2001018950A1 Arrangement for the protection of a power semiconductor output stage switching an inductive consumer |
| 03/15/2001 | DE19941698A1 Anordnung zum Schutz einer einen induktiven Verbraucher schaltenden Leistungshalbleiter-Endstufe Arrangement for the protection of an inductive load switching power semiconductor output stage |
| 03/14/2001 | EP1083652A2 Intelligent switch control circuit |
| 03/14/2001 | CN1063298C Controller for switched reluctance electric machine |
| 03/13/2001 | US6201368 Switched reluctance drive with high power factor |
| 03/13/2001 | CA2060625C Switched reluctance motor position by resonant signal injection |
| 03/06/2001 | US6198239 Hysteresis control in switched reluctance motors |
| 03/01/2001 | WO2001015310A1 Electrical machines |
| 03/01/2001 | WO2001015309A1 Encoderless rotor position detection method and apparatus |
| 03/01/2001 | DE19940409A1 Torque control circuit for phase control of electric motors e.g. hand-drills, has resistance connected in the motor control Triac current path for generation of voltage depending on motor |
| 02/28/2001 | EP1078448A1 Driving circuit for switched reluctance machines |
| 02/22/2001 | WO2001013511A1 Electrical machines |
| 02/22/2001 | WO2001013508A1 Electrical machines |
| 02/22/2001 | WO2001013507A1 Electrical machines |
| 02/14/2001 | EP1075730A2 Cross coupled motor gate drive |
| 02/14/2001 | CN1284213A Appts for controlling synchronous motor |
| 02/13/2001 | US6188192 Spindle motor back-EMF synchronous rectifier |
| 02/08/2001 | WO2001010010A1 A controller for electrical machines |
| 02/06/2001 | US6184665 Integrated current mode PWM drive system supply voltage scaleable while retaining a high precision |
| 01/30/2001 | US6181092 Current control circuit for a reluctance machine |
| 01/30/2001 | US6181090 Drive control method for linear oscillating motors and a linear oscillating motor |
| 01/18/2001 | DE10027586A1 Power supply unit for SR motor, has delay controller for delaying conduction of one transistor during conduction of another transistor in response to power supply indication signal |
| 01/17/2001 | EP1069284A2 A method of using inductance for determining the position of an armature in an electromagnetic solenoid |
| 01/16/2001 | US6175209 2/4-pole PSC motor with shared main winding and shared auxiliary winding |
| 01/16/2001 | US6175208 High efficiency permanent split capacitor motor for driving a compressor |
| 01/11/2001 | WO2001003283A1 Power supply circuit of an electric motor and corresponding control method |
| 01/11/2001 | DE19931972A1 Schaltungsanordnung zum Betreiben eines elektromagnetischen Stellglieds Circuit arrangement for operating an electromagnetic actuator |
| 01/10/2001 | EP1067671A1 Power supply circuit of an electric motor and corresponding control method |
| 01/10/2001 | EP1067670A2 Controlling method forswitched reluctance motor method and motor having a low peak current |
| 01/10/2001 | EP1067668A2 Circuit for operating an electromagnetic actuator |
| 01/09/2001 | US6172476 Two step power output motor and associated HVAC systems and methods |
| 01/09/2001 | US6171063 Control circuit for vibrating compressors for protecting against excessive voltage and temperature |
| 01/04/2001 | WO2001001557A1 Multi-resolution drive for actuators |
| 01/04/2001 | WO2001001393A2 Active damping of actuator bearing translational mode |
| 01/04/2001 | DE19943542A1 Regulating current in switched reluctance machine involves using control error between actual stator winding and demand currents to drive switching elements via pulse width modulator |
| 01/03/2001 | EP1064715A1 A solid state motor starter with energy recovery |
| 01/02/2001 | US6169383 Self adapting motor controller |
| 01/02/2001 | CA2113579C Electric machine system |
| 01/02/2001 | CA2062319C Synchronous motor with permanent magnets |
| 12/28/2000 | WO2000079671A1 Linear motor |
| 12/28/2000 | DE19930435C1 Electronic speed control device for electric hand tool has auxiliary operating button operated to allow pre-selected speed provided by speed selector to be locked |
| 12/28/2000 | CA2374351A1 Linear motor |
| 12/27/2000 | EP1063761A1 Power converters for variable reluctance motors |
| 12/27/2000 | EP1063760A2 Control system for a linear vibration motor |
| 12/27/2000 | CN1059989C Drive controlling method for linear vibration motor |
| 12/26/2000 | US6166511 Energization controller for a phase coil of an electric motor |
| 12/26/2000 | US6166464 Power module |
| 12/21/2000 | WO2000077921A1 Speed reduction switch |
| 12/20/2000 | CN1059766C Control loop and system for switched reluctance electric machine and its operating method |
| 12/14/2000 | WO2000046912A3 Cross coupled motor gate drive |
| 12/14/2000 | DE10006607A1 Switched reluctance motor control device uses microprocessor providing control signals for switching transistors supplying DC voltages to stator phase windings in dependence on detected rotor position |
| 12/12/2000 | US6160328 Electric motor |
| 12/07/2000 | WO2000074205A2 Method and circuits for controlling the power of an electronically switched, two-phase reluctance machine |
| 12/05/2000 | US6157160 Energization control of a switched reluctance motor |
| 11/30/2000 | WO2000071861A1 Method for controlling an electromagnetic valve drive mechanism for a gas exchange valve in an internal combustion piston engine |
| 11/30/2000 | DE10004774A1 Linear motor driver, has screen against magnetic fields of several permanent magnets, and controller board on U-shaped frame that detects magnetic fields generated by magnetic sensor unit |
| 11/29/2000 | CN1275257A Method for the starting and steady-state supply of a permanent-magnet synchronous motor particularly for driving hydraulic pump |
| 11/29/2000 | CN1275256A Method and system for varying and regulating motor speed |
| 11/28/2000 | US6153998 Method of controlling a two-degree-of-freedom control system |
| 11/28/2000 | US6153956 Switched reluctance position sensing |
| 11/22/2000 | EP1054506A2 Variable-speed motor drive controller for a pump-motor assembly |
| 11/21/2000 | US6150853 Integrated unit gain output stage |
| 11/21/2000 | US6150791 Operation of switched reluctance machines |
| 11/21/2000 | US6150778 Sensorless rotor position detection for switched reluctance machines having irregular poles |
| 11/15/2000 | EP1052768A2 Control of line harmonics |
| 11/15/2000 | EP1052762A1 Curcuit for enhancing the performance of motors driven by main supply |
| 11/02/2000 | DE10013151A1 Chopping controller for three phase switched reluctance motor, changes drive signals input respectively to two switching elements after preset time elapse, when switching elements are in same operating state |
| 10/31/2000 | US6140795 Variable speed control for AC induction motors |
| 10/31/2000 | US6140794 Energization controller for a phase coil of an electric motor |
| 10/31/2000 | US6140784 Power off velocity control for disk drives |
| 10/31/2000 | US6140729 Electrical machines |
| 10/26/2000 | DE10015894A1 Excitation controller for an electrical motor, comprises data entry device for acquiring rotational angle, memory for storing control data and controller that receives values for causing first and second torque values |
| 10/24/2000 | US6137257 Method for monitoring the position of a switched reluctance motor |
| 10/24/2000 | US6137256 Soft turn-off controller for switched reluctance machines |
| 10/24/2000 | US6137248 Sensing load and/or speed changes in a switched reluctance motor through current chopping |
| 10/18/2000 | EP1045510A2 Starter circuit for motors, particularly for refrigerator compressors |
| 10/18/2000 | EP1044921A2 Control device for a lifting apparatus, in particular a compact lifting apparatus |
| 10/18/2000 | CN1270094A Reciprocal dry shaver |
| 10/17/2000 | US6133701 Driving circuit for oscillatory actuator |
| 10/17/2000 | US6133699 Method and apparatus for operating a plurality of motors with a single controller |
| 10/12/2000 | WO2000060731A1 Method and apparatus for controlling a compressor |
| 10/05/2000 | DE19956104A1 Sensorlose Erfassung eines festgestellten Rotors eines Motors mit geschalteter Reluktanz Sensorless detection of a detected rotor of a switched reluctance motor |
| 09/27/2000 | EP1039625A2 Operation of a switched reluctance machine from dual supply voltages |
| 09/27/2000 | CN1267952A Operation of conversion magnetic resistance electric machine with double-power voltage supply |
| 09/19/2000 | US6121746 Speed reduction switch |
| 09/19/2000 | US6121744 Control apparatus for position control motor |
| 09/13/2000 | EP1034615A1 Commutator motor control system |
| 09/13/2000 | EP0868771B1 Variable reluctance motor systems |
| 09/13/2000 | CN1266015A Driving device with controller for lifting or lowering mechanism of crane |
| 09/12/2000 | US6118613 Electromagnetic actuator drive circuit |
| 09/12/2000 | US6118245 Control device and control process for motors |
| 09/12/2000 | US6118239 Speed control drive circuit for blower motor |
| 09/12/2000 | US6118235 Circuits for controlling reciprocation amplitude of a linear motor |
| 09/12/2000 | US6116408 Apparatus and system for controlling the operating frequency of an electromagnetic vibratory feeder at a submultiple of the power line frequency |
| 09/07/2000 | DE19911429A1 Stopping electric motor operated with d.c. and/or a.c. current, especially for elevator, involves exchanging rotor winding connections within series circuit, short circuiting series windings |
| 09/06/2000 | EP0902918B1 Motor-regulating device and method |
| 09/06/2000 | CN1265781A Linear motor compressor |
| 08/31/2000 | DE19935601A1 Motorantriebsvorrichtung, Verfahren zum Einstellen derselben und Informationsspeichervorrichtung Motor driving apparatus, and method for adjusting the same information storage device |
| 08/30/2000 | EP1032116A2 Vacuum cleaner |
| 08/30/2000 | CN1056021C Method and device for controlling load power via phase adjustment system |