| Patents for H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage (13,284) |
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| 02/28/2007 | CN2874921Y General motor energy saving device |
| 02/28/2007 | CN1922783A Induction motor stopping method and control apparatus |
| 02/28/2007 | CN1921292A Voltage and speed regulating controller for single-phase asynchronous motor and air-conditioner using the same |
| 02/27/2007 | US7183740 Motor drive apparatus, vehicle having the same mounted therein, and computer readable storage medium having a program stored therein to cause computer to control voltage conversion |
| 02/27/2007 | US7183728 Motor drive system and process |
| 02/22/2007 | WO2006134848A3 Voltage conversion device |
| 02/22/2007 | US20070040532 Motor controller and control method thereof, and error detecting apparatus of inverter |
| 02/22/2007 | DE102005061565A1 Elevator system, has three phase machines whereby feed back converter has network sided main clocked-rectifier and self commutated pulse current rectifier which are directly linked with each other on DC voltage side |
| 02/21/2007 | EP1755213A1 Method and device for producing rectifier gating signals using a peak detector |
| 02/21/2007 | EP1753634A1 Motor drive apparatus |
| 02/21/2007 | CN2872736Y Power-supply controlling system of beam-pumping unit |
| 02/21/2007 | CN2872715Y Integrated energy-saving dragger against charge evasion |
| 02/21/2007 | CN2871932Y Multi-gear adjusting electric fan |
| 02/21/2007 | CN1918782A Motor driving apparatus |
| 02/21/2007 | CN1917360A Motor controller and control method thereof, and error detecting apparatus of inverter |
| 02/21/2007 | CN1915855A Energy saving method for circulating equipment of oxidation channel in sewage disposal plant |
| 02/21/2007 | CN1301586C Electric motor pole position sensing method, pole position sensing apparatus, and electric motor control apparatus using the same |
| 02/20/2007 | US7180262 Control system and method for electric drives with a.c. motors |
| 02/20/2007 | US7180258 Controlling current supplied to electric motor of a seat belt retractor |
| 02/15/2007 | WO2007018537A1 System and method for starting a wound rotor motor |
| 02/15/2007 | WO2007018321A1 Vehicle control device, vehicle, and vehicle control method |
| 02/15/2007 | US20070035271 Method and apparatus for detecting multiple overcurrent thresholds using a single comparator device |
| 02/15/2007 | DE10214622B4 Sensorlose Regelung für einen Asynchronmotor Sensorless control for an induction motor |
| 02/14/2007 | EP1751839A1 Low loss propulsion system |
| 02/14/2007 | EP0899864B1 Induction motor controller |
| 02/14/2007 | CN2870272Y Electric control circuit for stable control to powder-feeder frequency variator |
| 02/14/2007 | CN1914788A Brushless motor start method, drive device, and refrigerator |
| 02/14/2007 | CN1913342A Variable speed control device |
| 02/14/2007 | CN1913332A Method and system for starting a sensorless motor |
| 02/14/2007 | CN1912364A Motor-driven supercharger |
| 02/14/2007 | CN1911705A Power supply device for vehicle and method of controlling the same |
| 02/14/2007 | CN1300932C Motor driving apparatus |
| 02/13/2007 | US7176653 Electric motor drive |
| 02/13/2007 | US7176652 Motor control apparatus |
| 02/13/2007 | US7176644 Motor driving apparatus |
| 02/08/2007 | US20070029986 Power supply device for vehicle and method of controlling the same |
| 02/08/2007 | US20070029963 Ac motor control method and control device |
| 02/07/2007 | CN2867721Y Electric motor electricity-saving device |
| 02/07/2007 | CN2867715Y Frequency conversion and power frequency outputting transforming device |
| 02/07/2007 | CN2867415Y Main electric control cabinet for metal wire twining device |
| 02/07/2007 | CN1910812A Electric power converting apparatus |
| 02/07/2007 | CN1908287A Method of controlling motor-driven washing machine and control system for the same |
| 02/07/2007 | CN1908286A Method of controlling motor-driven washing machine and control system for the same |
| 02/07/2007 | CN1908285A Method of controlling motor-driven washing machine and control system for the same |
| 02/06/2007 | US7173394 Apparatus and method for controlling inverter |
| 02/06/2007 | US7173393 Phase current detection method, inverter control method, motor control method, and apparatuses used in these methods |
| 02/01/2007 | WO2007013291A1 Inverter device |
| 02/01/2007 | US20070024230 Electrically powered hand tool |
| 02/01/2007 | DE102005035073A1 Verfahren und Vorrichtung zur Regelung einer elektrischen Maschine Method and apparatus for controlling an electrical machine |
| 02/01/2007 | DE10125910B4 Verfahren und Schaltung zur Erkennung von Motor-Isolationsfehlern Method and circuit for detection of motor insulation faults |
| 01/31/2007 | CN2864230Y Permanent magnetic A.C. servo driving system for smoke warehouse shaker |
| 01/31/2007 | CN1906836A Voltage conversion device |
| 01/31/2007 | CN1906786A Fuel cell system and method of correcting fuel cell current |
| 01/31/2007 | CN1905603A Flexible driving monitoring system |
| 01/31/2007 | CN1905354A Multi-mode integrated regulating circuit for controlling fan |
| 01/31/2007 | CN1905349A Motor drive device with combined charge controller |
| 01/30/2007 | US7170283 Device for detecting a position of a magnetic pole |
| 01/30/2007 | US7170246 Motor control apparatus |
| 01/30/2007 | CA2230500C Power converting apparatus and power converting method |
| 01/25/2007 | US20070018606 Method and device for sensorless vector control for ac motor |
| 01/25/2007 | DE102006031645A1 Drive, has gear with parameters that are stored in converter for controlling converter to reduce rotary moment of gear, and sensor such as torque sensor for determining angular position of initial stroke of teeth of gear |
| 01/25/2007 | DE102005033761A1 Antrieb und Verfahren Drive and procedures |
| 01/24/2007 | CN1297066C Motor driving apparatus |
| 01/23/2007 | US7166982 Hardware based configurable motion control apparatus and method |
| 01/18/2007 | WO2007007920A1 Overvoltage suppression technique for variable frequency drives operating reciprocating loads |
| 01/18/2007 | WO2007007900A1 Secondary battery control device and control method |
| 01/18/2007 | WO2007007833A1 Motor drive system |
| 01/18/2007 | WO2007007466A1 Polyphase inverter, control method therefor, blower, and polyphase current output system |
| 01/18/2007 | WO2007007413A1 Motor drive system |
| 01/18/2007 | WO2007007387A1 Controller of field winding type synchronous motor, electric drive system, electric four wheel driving vehicle, and hybrid automobile |
| 01/18/2007 | US20070013339 Motor control method and device thereof |
| 01/18/2007 | US20070013238 Mesh connected electrical rotating machine with span changing |
| 01/17/2007 | EP1743416A1 Adaptive system for optimizing excitation current waveform profiles for electric motors |
| 01/17/2007 | CN1898858A Method and system for managing processor excution time utilizing variable frequency switching |
| 01/17/2007 | CN1898845A Method and apparatus for supplying charge with electric energy recovery |
| 01/17/2007 | CN1898142A Method and device for controlling speed of inverter for elevator |
| 01/17/2007 | CN1897456A Permanent magnetism synchrounous electromotor control device |
| 01/17/2007 | CN1897455A Motor drive unit |
| 01/17/2007 | CN1897454A Intelligent frequency-variable module |
| 01/17/2007 | CN1897447A Ac motor driving apparatus and method of controlling the same |
| 01/17/2007 | CN1295859C Method for measuring modulation efficiency of generating set primary frequency-modulation |
| 01/17/2007 | CN1295470C Refrigerant compressor driven by variable supply frequency motor |
| 01/16/2007 | US7164253 Motor drive control apparatus |
| 01/16/2007 | US7164252 Electrically powered hand tool |
| 01/11/2007 | US20070007928 Frequency converter, motor, motor drive system and maintenance method for motor drive system |
| 01/10/2007 | CN1894847A Control device for variable speed electric motors, particularly for power tools |
| 01/10/2007 | CN1294696C Intelligentized electricity-saving protector for three-phase asynchronous motor |
| 01/10/2007 | CN1294695C Vector control system without sensor for inductive motor and method |
| 01/09/2007 | US7161456 Systems and methods for driving large capacity AC motors |
| 01/09/2007 | US7161323 Motor drive apparatus, electric actuator and electric power steering apparatus |
| 01/04/2007 | WO2007001007A1 Power conversion control device, power conversion control method, and power conversion control program |
| 01/04/2007 | US20070001643 Method and control circuit for determining an operating state when controlling a fan motor |
| 01/04/2007 | US20070001630 Electric motor movement controlling method, an electric motor movement controlling system and a compressor |
| 01/04/2007 | DE102005030634A1 Schaltungsanordnung zur Ermittlung von Nulldurchgängen einer Wechselspannung Circuit arrangement for detecting zero crossings of an alternating voltage |
| 01/03/2007 | CN2854929Y Electric saver for single-phase electric motor |
| 01/03/2007 | CN1890872A Controlling of a direct-current motor |
| 01/03/2007 | CN1890869A Starting system for a single-phase induction motor |
| 01/03/2007 | CN1890868A Device for power adjustment by phase control and method for reduction of harmonic waves |
| 01/03/2007 | CN1889359A High-voltage variable frequency speed regulating method and apparatus thereof based on alph-beta current component direct-filling |
| 01/03/2007 | CN1889358A Permasyn electric machine control system based on adaptive sliding moding structure |