| 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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| 08/16/2012 | WO2011076827A3 Braking device for a universal motor |
| 08/16/2012 | DE102011079135A1 Method for operating three-phase machine, involves maintaining main and additional three-phase windings of stator in connected state to supply network during operation of three-phase machine |
| 08/16/2012 | DE102011003946A1 Verfahren zum Regeln eines von einer elektrischen Maschine in einem Kraftfahrzeug abgegebenen Ist-Drehmoments auf ein Soll-Drehmoment A method for controlling an output of an electric machine in a motor vehicle actual torque to a target torque |
| 08/15/2012 | EP1547235B1 Circuit arrangement for controlling an oscillating electric motor |
| 08/15/2012 | CN202385050U Motion control card based on FPGA (field programmable gate array) |
| 08/15/2012 | CN202385049U Pulse width modulation (PWM) driving speed governing circuit for speed regulating and control of alternating current motor of household appliances |
| 08/15/2012 | CN102640413A Controllable direct current motor with a modified characteristic curve |
| 08/15/2012 | CN102640064A A motor and a relay for a motor |
| 08/15/2012 | CN102638218A Motor driving control apparatus for controlling motor output according to power characteristics of AC power supply |
| 08/15/2012 | CN101977014B Energy consumption-time optimal control method for linear motor servo system and established system |
| 08/09/2012 | DE102011003759A1 Energiespeichereinrichtung für eine fremderregte elektrische Maschine Energy storage device for a separately excited electric machine |
| 08/08/2012 | CN202374213U Improved permanent magnet motor controller of electric walking-assistant vehicle |
| 08/08/2012 | CN202374212U Electronic circuit of separately excited motor driving controller |
| 08/08/2012 | CN202374211U Energy-saving controller for speed regulation of motor |
| 08/08/2012 | CN1992503B Apparatus and method for varying speed of hybrid induction motor |
| 08/08/2012 | CN102629849A Device for on-line adaptation of motor for automatic operation at optimum efficiency |
| 08/08/2012 | CN102097916B Long-stroke DC linear motor and control system thereof |
| 08/08/2012 | CN101505929B Method for determining the dirtiness of an electrically driven cutting tool, and hair cutting device |
| 08/01/2012 | EP1454410B1 Method for reducing the influence of a dc current component in the load current of an asynchronous motor |
| 08/01/2012 | CN102625977A Electric motor system |
| 07/31/2012 | US8231355 Linear motor controller improvements |
| 07/26/2012 | WO2012099183A1 Method for driving linear actuator |
| 07/26/2012 | WO2011112363A3 Method and system for controlling a permanent magnet synchronous motor |
| 07/26/2012 | US20120190554 Electric drive shaft and vehicle comprising such an electric drive shaft |
| 07/26/2012 | US20120187893 Electric motor system |
| 07/26/2012 | DE102011090029A1 Verfahren, Systeme und Geräte für das Steuern der Dritte-Harmonische-Spannung, wenn eine Viel-Phasen-Maschine in einem Übermodulationsbereich betrieben wird Methods, systems and devices for controlling the third-harmonic voltage when a multi-phase machine is operated in an overmodulation region |
| 07/25/2012 | EP2479885A1 Flux cancellation in a permanent magnet generator |
| 07/25/2012 | EP2313967B1 Resonance-based rotor position estimation |
| 07/25/2012 | CN202353409U Novel double-speed single-phase asynchronous motor |
| 07/25/2012 | CN1728536B Rotor position detection in an electrical machine |
| 07/25/2012 | CN102611384A MO51 chip based speed-setting controller for single-phase asynchronous motor |
| 07/25/2012 | CN101800511B Single-phase motor-driving device with energy saving module |
| 07/25/2012 | CN101546950B Method for controlling operation of a linear vibration motor |
| 07/19/2012 | WO2011080180A3 Method for limiting the current output of an electric generator at a high rotational speed |
| 07/19/2012 | US20120181970 Variable-flux motor drive system |
| 07/18/2012 | EP2477326A1 Electromotor with parallel series connection of partial windings and method for operating same |
| 07/18/2012 | EP2477007A1 Interface circuit, inverter apparatus, inverter system and transmission/reception method |
| 07/18/2012 | EP2476202A2 Controllable direct current motor with a modified characteristic curve |
| 07/18/2012 | CN202340203U 抽油机电动机节电控制装置 Pumping motor power control device |
| 07/18/2012 | CN102594256A Motion control system of underground linear motor and motion control method of underground linear motor |
| 07/18/2012 | CN102594255A Method for controlling movement displacement of linear motor |
| 07/18/2012 | CN102594161A Two-phase variable frequency power source and output method thereof |
| 07/18/2012 | CN101567652B Permanent magnet motor start-up |
| 07/17/2012 | US8222842 Motor with rotor-mounted control circuitry |
| 07/17/2012 | CA2650801C Mitigation of harmonic currents and conservation of power in non-linear load systems |
| 07/11/2012 | EP2474091A2 Method for determining the rotor position of a synchronous machine with field-oriented control |
| 07/11/2012 | EP2474090A2 Method and device for determining a rotor position of a synchronous machine |
| 07/11/2012 | EP1820263B1 System and method of restarting a switched reluctance motor after a rapid cycling of power |
| 07/11/2012 | CN202334400U 电机节电器 Electric Power Saver |
| 07/11/2012 | CN102577082A Method for at least determining the rotor position of rotating or linear synchronious machines |
| 07/11/2012 | CN102572018A Mobile terminal with vibrating motor |
| 07/11/2012 | CN102570966A Multifunctional electric controller of clutch motor |
| 07/11/2012 | CN102554282A Multifunctional inductive electric spindle |
| 07/11/2012 | CN101552591B Method and apparatus for torque ripple reduction |
| 07/10/2012 | CA2720974C Electric motor |
| 07/05/2012 | WO2012090781A1 Motor control apparatus, motor control method, and control program |
| 07/05/2012 | WO2011137501A3 System for controlling a resonant linear compressor piston, method for controlling a resonant linear compressor piston, and resonant linear compressor |
| 07/05/2012 | DE102011085857A1 Verfahren, Systeme und Geräte für das Einstellen der Aussteuerung von Pulsbreiten modulierten (PWM) Wellenformen Methods, systems and devices for adjusting the modulation of pulse width modulated (PWM) waveforms |
| 07/04/2012 | EP2472195A1 Solar panel channel |
| 07/04/2012 | CN202309611U 电动机串联斩波调速装置 Chopper series motor speed control device |
| 07/04/2012 | CN202309605U 易接线的风电变桨专用伺服驱动器 Wind easy wiring pitch dedicated servo drives |
| 07/04/2012 | CN102549912A Control method and drive system of linear motor |
| 07/04/2012 | CN102545776A Variable frequency control circuit and control method for electric hoist |
| 07/04/2012 | CN102545772A Control circuit for gear shifting of multi-gear motor and control method |
| 07/04/2012 | CN102545771A Current loop realization method and realization system of switched reluctance motor controller |
| 07/04/2012 | CN102545770A Motor driving module capable of adjusting output pulse width modulation control signal |
| 07/04/2012 | CN101835980B Reciprocating compressor |
| 07/03/2012 | US8212510 Fiber optically communicated motor temperature and position signals |
| 06/28/2012 | WO2012086852A1 Electric power tool |
| 06/28/2012 | WO2012025312A3 Method and device for controlling a synchronous machine |
| 06/28/2012 | WO2011098245A3 Method and control unit for determining the strength of a magnetization current for an asynchronous motor |
| 06/28/2012 | WO2010149656A3 Method and device for compensating for load factors in permanently excited motors |
| 06/28/2012 | US20120161689 Controller |
| 06/27/2012 | EP2469704A2 Motor drive circuit |
| 06/27/2012 | EP2469703A2 System and method for synchronous machine health monitoring |
| 06/27/2012 | EP2467933A2 Circuit assembly for a motor vehicle |
| 06/27/2012 | CN102522872A High-frequency short-distance reciprocating motion mechanism of linear motor and control method of high-frequency short-distance reciprocating motion mechanism |
| 06/26/2012 | US8207700 Electric motor drive |
| 06/26/2012 | US8207698 Electric drive system for an automotive vehicle |
| 06/21/2012 | WO2012080813A1 Method for braking a single-phase electric motor, as well as a single-phase electric motor implementing such method |
| 06/21/2012 | WO2012003825A3 Method for compensating a phase offset between a rotor position sensor and the rotor position of an electrically commutated motor |
| 06/19/2012 | US8203302 System and method for controlling four-quadrant operation of a switched reluctance motor drive through a single controllable switch |
| 06/19/2012 | US8203291 Generator assembly |
| 06/14/2012 | WO2011157553A3 Method and device for starting an electric motor |
| 06/14/2012 | WO2011124346A3 Method for controlling an optimal operating point in a synchronous machine and inverter-fed synchronous machine |
| 06/14/2012 | DE102011055519A1 Geschalteter Durchmesserwicklungs-Reluktanzmotor Switched reluctance motor winding diameter |
| 06/14/2012 | DE102004057062B4 Lineardirektantriebsanordnung und Verfahren zu seiner Regelung Linear direct drive assembly and method of control |
| 06/13/2012 | EP2464003A2 Electronically commuted electric motor with two phases and use of such an electric motor |
| 06/13/2012 | CN102497158A Method for reducing leakage current of electrical equipment and electrical equipment |
| 06/13/2012 | CN102497157A Sensor-less control device and control method of sectional-winding linear motor |
| 06/13/2012 | CN101436842B Motor drive circuit |
| 06/12/2012 | US8198836 Hybrid vehicle and method of controlling hybrid vehicle |
| 06/07/2012 | WO2012050362A3 Method for expressing vibration pattern of non-resonance frequency vibration motor |
| 06/07/2012 | WO2012050361A3 Method for saving vibration pattern of resonance-free frequency vibration motor |
| 06/07/2012 | WO2011157552A3 Method and device for adjusting a speed range of an electric motor |
| 06/07/2012 | US20120141300 Linear motor, a linear compressor, a method of controlling a linear compressor, a cooling system, and a linear compressor controlling a system |
| 06/06/2012 | EP2460267A1 Assembly comprising a switching system, synchronous machine, and variable-speed drive |
| 06/06/2012 | CN202268840U 一种开关磁阻电机升压功率变换器 A switched reluctance motor boost power converter |
| 06/06/2012 | CN101479939B Circuit arrangement and method for controlling an electrical consumer |
| 05/31/2012 | DE102010062060A1 Drehstrom-Asynchronmaschine und Verfahren zum Betreiben einer Drehstrom-Asynchronmaschine in einem Luft- oder Raumfahrzeug Three-phase asynchronous and method for operating a three-phase asynchronous in an aircraft or spacecraft |