| 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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| 04/25/2007 | EP1516425B1 Brushless motor control utilizing independent phase parameters |
| 04/25/2007 | CN2894084Y Energy-saving and anti-unauthorizedly using electricity integrated draging device for pumping unit |
| 04/25/2007 | CN2894083Y Photosensitive resistance three-phase electric machine speed regulator |
| 04/25/2007 | CN1312828C Flat noncommutator vibration motor |
| 04/24/2007 | US7208907 System and method of restarting a switched reluctance motor after a rapid cycling of power |
| 04/24/2007 | US7208906 Excitation of switched reluctance motors |
| 04/19/2007 | WO2006131459A3 Method for controlling a reluctance motor |
| 04/19/2007 | DE102005036802B3 Verfahren und Vorrichtung zur Steigerung der Effizienz eines Elektromotors Method and apparatus for increasing the efficiency of an electric motor |
| 04/18/2007 | EP1775831A2 Motor control circuit for a power tool |
| 04/18/2007 | EP1775830A2 Method for distributig current on converter valves for a synchronous servo drive in final position |
| 04/18/2007 | EP1775823A2 Electrical machine |
| 04/18/2007 | EP1774644A1 Drive circuit for a synchronous electric motor |
| 04/18/2007 | CN2891456Y Internal feeding brushless variable speed AC motor |
| 04/18/2007 | CN1950993A Commutator motor having a number of field winding groups |
| 04/18/2007 | CN1950991A Vehicle drive system and vehicle comprising it |
| 04/17/2007 | US7206180 Method for regulating the current through an electromagnetic actuator |
| 04/17/2007 | US7205738 Method and apparatus for time-based dc motor commutation |
| 04/17/2007 | US7204011 Method for manufacturing adaptive machines |
| 04/17/2007 | CA2510649C Motor control system and method with adaptive current profile |
| 04/12/2007 | WO2007040821A1 Selectively configurable electric motor |
| 04/12/2007 | WO2007040443A1 Method for power control of an electric motor |
| 04/12/2007 | WO2007039487A1 Electronic intermediate dc circuit |
| 04/11/2007 | EP1772959A1 Rotor position detection in an electrical machine |
| 04/11/2007 | CN2888746Y Large-current circuit board for brushless motor controller |
| 04/11/2007 | CN1945960A Rotor position detection in an electrical machine |
| 04/10/2007 | US7202615 Tubular linear synchronous motor control for elevator doors |
| 04/10/2007 | US7201244 Vehicle for materials handling and other industrial uses |
| 04/05/2007 | WO2007036441A1 Electrical machine, in particular a three-phase alternator |
| 04/05/2007 | WO2007036430A1 Method and device for the inductive transfer of energy to super-conductive excitation coils of an electric machine |
| 04/05/2007 | US20070075672 Rotor position detection in an electrical machine |
| 04/04/2007 | EP1769576A1 Device for driving an electromagnet, particularly for operating pumps |
| 04/04/2007 | EP1768600A1 Power toothbrush with adjustable operation |
| 04/04/2007 | CN1943090A Series motor and method for controlling the same |
| 04/03/2007 | US7199549 Feedback parameter estimation for electric machines |
| 04/03/2007 | US7199547 Apparatus, method or system for controlling mobile body |
| 03/29/2007 | WO2007034689A1 Ac synchronous motor initial magnetic pole position estimation device and its method |
| 03/29/2007 | WO2006122307A3 Apparatus and methods for estimation of initial phase of a brushless motor |
| 03/29/2007 | WO2005089283A3 Coil switching circuit for linear electric generator |
| 03/29/2007 | US20070069677 System and method for applying energy to a motor |
| 03/29/2007 | US20070069676 System and method for commutating a motor |
| 03/29/2007 | US20070069675 System and method for attenuating noise associated with a back electromotive force signal in a motor |
| 03/29/2007 | US20070069671 Electric power tool with memory capability |
| 03/28/2007 | EP1768253A2 Method and device for messuring current with a shunt |
| 03/28/2007 | CN1938937A Control of motor |
| 03/28/2007 | CN1938936A Control of motor |
| 03/28/2007 | CN1307784C Control system for a linear vibration motor |
| 03/27/2007 | US7197390 Electric vehicle with adaptive cruise control system |
| 03/27/2007 | US7196490 Variable speed motor |
| 03/27/2007 | US7196488 Motor driving apparatus |
| 03/22/2007 | WO2007031058A1 Method for operating an electrical machine |
| 03/22/2007 | US20070063149 Positioning device and method of initializing a positioning device |
| 03/21/2007 | EP1583909B1 A linear-compressor control system a method of controlling a linear compressor a linear compressor and cooling system |
| 03/21/2007 | CN2882092Y Step speed-regulating motor |
| 03/21/2007 | CN1933294A Brushless non-slip ring AC asynchronous and synchronous electric machine with rotor winding as armature winding |
| 03/21/2007 | CN1306692C Driving circuit for improving starting of hybrid induction motor and method thereof |
| 03/15/2007 | DE102005043576A1 Verfahren zum Betrieb einer elektrischen Maschine Method for operating an electrical machine |
| 03/14/2007 | CN1930771A Motor and drive control system thereof |
| 03/13/2007 | US7190138 Failure monitor for motor drive control system |
| 03/13/2007 | US7190137 Method to control an electronically commutated motor and motor controller |
| 03/08/2007 | WO2006130565A3 Apparatus and method for increasing efficiency of electric motors |
| 03/07/2007 | EP1389362A4 Mesh connected electrical rotating machine with span changing |
| 03/07/2007 | EP1169773B1 Low cost brush motor driver in conjunction with low cost sr motor driver |
| 03/07/2007 | CN2876374Y Intelligent multi-power energy saving actuator |
| 03/07/2007 | CN1925277A Alternating current synchronous motor based on three-phase rotary transformer technology, alternating current wound rotor motor and arrangements for speed regulation |
| 03/07/2007 | CN1303754C Phase controller of AC motor for air conditionning appts. and phase control method |
| 03/06/2007 | US7187154 Motor drive apparatus and electric power steering apparatus |
| 03/01/2007 | US20070046235 Brushless motor commutation and control |
| 03/01/2007 | US20070046234 Electronic commutation method and related apparatus |
| 02/28/2007 | EP1436508B1 Electronic control system and process for electromagnetic pump |
| 02/28/2007 | CN1302613C Measurement for current change rate in switch reluctance motor |
| 02/28/2007 | CA2549055A1 Method of rotating a polyphase motor at less than rated speed |
| 02/22/2007 | WO2007020766A1 Torque ripple suppressor of engine |
| 02/22/2007 | US20070040525 Electric motor with integral regulator inductance |
| 02/21/2007 | EP1755208A2 Electric machine and method of using electric machine |
| 02/21/2007 | EP1142099B1 Method for digital control of a universal motor, in particular for electrical household appliance |
| 02/20/2007 | US7180254 Method and apparatus for controlling an oscillating electric motor of a small electric appliance |
| 02/15/2007 | WO2007016919A1 Method and device for the technique of cold microforging any freely formed 3-d surfaces |
| 02/15/2007 | US20070035265 Commutation technique for an ac-to-ac converter based on state machine control |
| 02/15/2007 | US20070035264 Control and monitoring arrangements for an aperture closure member |
| 02/15/2007 | US20070035184 Linear motor |
| 02/15/2007 | CA2617305A1 Method and device for the technique of cold microforging any freely formed 3-d surfaces |
| 02/14/2007 | CN1913341A Generic motor control system |
| 02/14/2007 | CN1300933C Apparatus for driving brushless motor and method of controlling the motor |
| 02/14/2007 | CN1300932C Motor driving apparatus |
| 02/13/2007 | US7176650 Operation of an electrical machine |
| 02/08/2007 | US20070030620 Low power solenoid driver circuit |
| 02/07/2007 | CN2867707Y Micromotor |
| 02/07/2007 | CN2867665Y Delta-to-star switching energy conservation distribution box |
| 02/07/2007 | CN2866560Y Dewatering braking device |
| 02/07/2007 | CN1910814A Method for reducing the rotational speed of a drivetrain in a wind energy plant and wind energy plant with at least two nominal speeds |
| 02/07/2007 | CN1910812A Electric power converting apparatus |
| 02/06/2007 | US7174262 Rotor position detection in an electrical machine |
| 02/06/2007 | US7173354 Flat noncommutator vibration motor |
| 02/01/2007 | US20070025861 Electromagnetic pump driving method |
| 01/31/2007 | CN2864230Y Permanent magnetic A.C. servo driving system for smoke warehouse shaker |
| 01/31/2007 | CN1906845A Electric hand-held power tool having a memory function |
| 01/31/2007 | CN1906828A Switched DC electrical machine |
| 01/30/2007 | US7170283 Device for detecting a position of a magnetic pole |
| 01/30/2007 | US7170262 Variable frequency power system and method of use |
| 01/30/2007 | US7170255 Feedforward controller for synchronous reluctance machines |