| 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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| 09/19/2007 | CN100338866C High-voltage AC motor voltage reducing liquid resistance device with circulation cooling system |
| 09/18/2007 | US7271566 Method and system for managing the voltage on the DC bus of a speed controller for an AC motor |
| 09/18/2007 | US7271565 Apparatus for controlling speed of fan motor of air-conditioner |
| 09/13/2007 | WO2007102503A1 Earth-fault detecting method |
| 09/13/2007 | US20070210741 Driver for induction motor and method of driving the same |
| 09/13/2007 | DE202007009660U1 Elektrischer Stellantrieb Electric Actuator |
| 09/12/2007 | EP1833159A1 Method and system for controlling a rotational speed of a rotor of a turbogenerator |
| 09/12/2007 | EP1832885A1 Ground fault detection device for motor driving circuit |
| 09/12/2007 | CN200947586Y AC frequency conversion regulating speed control equipment for digger |
| 09/12/2007 | CN200946058Y Transmission control device of bobbin winder |
| 09/12/2007 | CN101034867A 风扇控制装置 Fan Control Device |
| 09/12/2007 | CN101034864A Controller for electric vehicle and driving apparatus for the electric vehicle |
| 09/12/2007 | CN101034841A Electronic direction-conversion motor with phase coil unit individually excited |
| 09/12/2007 | CN101033578A Vehicle seam speed control circuit |
| 09/12/2007 | CN100337396C Ac motor control method and control device |
| 09/12/2007 | CN100337395C Motor temperature estimator and motor controller |
| 09/11/2007 | US7268516 Circuit for use with switched reluctance machines |
| 09/11/2007 | US7268515 Three-in-one AC servo drive |
| 09/11/2007 | US7268505 Electric machine and method of operating the electric machine |
| 09/07/2007 | WO2007077001A3 Method and system of control of the converter of an electricity generation facility connected to an electricity network in the presence of voltage sags in said network |
| 09/06/2007 | US20070205743 Motor control device and motor control method |
| 09/06/2007 | US20070205742 Inverter device |
| 09/06/2007 | US20070205741 Controller for an electric vehicle and driving apparatus for the electric vehicle |
| 09/06/2007 | DE19725690B4 Antriebseinheit für Kleinaggregate insbesondere in einer Spinnanlage Drive unit for small units, particularly in a spinning plant |
| 09/05/2007 | CN200944576Y Automatic control device of double fed motor generating maximum advancing reactive power |
| 09/05/2007 | CN200944575Y DC busbar supplying crane power system |
| 09/05/2007 | CN200944195Y Limit controller of flame cutting vehicle |
| 09/05/2007 | CN100336297C Motor controller |
| 09/04/2007 | US7265516 Linear electric motor controller and system for providing linear control |
| 09/04/2007 | US7265463 Rotary electric apparatus with high cooling performance |
| 08/30/2007 | WO2007097183A1 Electric motor control apparatus |
| 08/30/2007 | US20070200531 Pulse width modulation control circuit for a multimode electrical machine, and a multimode electrical machine equipped with such a control circuit |
| 08/30/2007 | US20070200530 Frequency converter, motor, motor drive system and maintenance method for motor drive system |
| 08/30/2007 | US20070200529 Controller for an electric four-wheel-drive vehicle |
| 08/30/2007 | DE112005000733T5 Verfahren zum Verzögern eines Wechselstrommotors und Umrichtervorrichtung A method of delaying an AC motor and power converter |
| 08/30/2007 | DE102006008014A1 Windenergieanlage mit Zusatzschaltung für Schwachwindbetrieb. Wind turbine with additional circuit for low wind operation. |
| 08/29/2007 | EP1071982B1 Apparatus and method for controlling an electric assist steering system |
| 08/29/2007 | CN200941598Y Combined conversion type a.c. converter |
| 08/29/2007 | CN200941588Y Intelligence controlled electricity saver |
| 08/29/2007 | CN101027203A Motor drive apparatus |
| 08/29/2007 | CN101026326A External water-cooling energy-saving constant power speed control motor |
| 08/29/2007 | CN101025163A Fan rotating-speed control system and method |
| 08/29/2007 | CN101025156A DC frequency-changeable compressor driving apparatus and method |
| 08/29/2007 | CN100334802C Frequency converter for different mains voltages |
| 08/29/2007 | CN100334790C Dynamic unti-theft electric pulling device for beam-pumping unit |
| 08/29/2007 | CN100334401C 空调机 Air conditioners |
| 08/23/2007 | WO2007094107A1 Electromagnetic suspension device |
| 08/23/2007 | WO2007045967A8 Method for controlling a roller-blind actuator |
| 08/23/2007 | US20070194746 Electric power conversion apparatus |
| 08/23/2007 | US20070194745 Split phase polyphase inverter |
| 08/23/2007 | DE102007003737A1 Verfahren zum Betreiben eines Elektrogeräts, Elektrogerät und aus einem Umrichter versorgbarer Elektromotor Method for operating an electrical appliance, household appliances and versorgbarer from an inverter electric motor |
| 08/23/2007 | DE102006006881A1 Verfahren zum Betreiben eines Verstellantriebs mit einem impulsbreitenmodulierten Positioniersignal und Vorrichtung zur Durchführung des Verfahrens Method for operating an adjusting drive with a pulse-width-modulated positioning signal and device for carrying out the method |
| 08/23/2007 | DE102006005854A1 Verfahren und Vorrichtung zum Bestimmen des Drehmoments einer elektrischen Maschine Method and device for determining the torque of an electric machine |
| 08/22/2007 | EP1821283A2 Display device and displaying method |
| 08/22/2007 | EP1163716B1 Electronic controller for an electric hand tool |
| 08/22/2007 | CN2938567Y Explosive-proof compatible safe four-quadrant frequency converter speed regulation system of digital mine hoist |
| 08/22/2007 | CN2938566Y AC motor intermittent drive device for blast regulation system |
| 08/22/2007 | CN1333521C Motor drive device, hybrid vehicle drive device equipped therewith, and computer readable storage medium recording program for making computer implement control of motor drive device |
| 08/22/2007 | CN1333520C Method and device for the regulation of a permanent-magnet excited synchronous machine having reduced power oscillations in the higher rotational speed range |
| 08/22/2007 | CN101022262A Clamping five level variable frequency driving device utilizing internal and external ring double-group rectifier bridge |
| 08/22/2007 | CN101022261A Ac motor system and method for controlling same, and related power conversion device |
| 08/22/2007 | CN101022248A Universal control device for frequency transformer and control method thereof |
| 08/21/2007 | US7259530 Power output apparatus, motor driving method and computer-readable recording medium having program recorded thereon for allowing computer to execute motor drive control |
| 08/17/2007 | CA2568479A1 Medium voltage inverter system |
| 08/16/2007 | WO2007091428A1 Motor drive device, hybrid vehicle using the same, and electric power conversion device stop/control method |
| 08/16/2007 | US20070187186 Speed control method of elevator-purpose inverter and speed control apparatus thereof |
| 08/16/2007 | DE19954931B4 Schalteinrichtung an einem von Hand führbaren, auf ein pulsierendes Drehmoment umschaltbaren Elektrowerkzeug Feasible switching device on a manually switchable to a pulsating torque power tool |
| 08/15/2007 | EP1819034A2 Voltage conversion apparatus, power output apparatus, and control method of voltage converter |
| 08/15/2007 | EP1817844A2 Advanced current control method and apparatus for a motor drive system |
| 08/15/2007 | EP1219014A4 Minimization of motor torque ripple due to unbalanced conditions |
| 08/15/2007 | CN2935628Y Large power converter based on input electric network compensation |
| 08/15/2007 | CN101019304A Adaptive system for optimizing excitation current waveform profiles for electric motors |
| 08/15/2007 | CN101019303A Ac rotary machine constant measuring apparatus |
| 08/15/2007 | CN101018039A Fully digital dual-feedback speed-adjusting device of high-voltage motor |
| 08/15/2007 | CN101018038A Speed adjusting device and method |
| 08/15/2007 | CN101018037A Offset PWM signals for multiphase motor |
| 08/15/2007 | CN101018008A Voltage conversion apparatus, power output apparatus, and control method of voltage converter |
| 08/14/2007 | US7256563 Method and device for the sensor reduced regulation of a permanent magnet excited synchronous machine |
| 08/09/2007 | US20070182358 Method of braking induction motor and control apparatus |
| 08/09/2007 | DE102006004801B3 Sawing fixture e.g. buzz-saw, for sawing of e.g. board, has sawing tool for sawing of goods that are to be sawn, where tool has nano-tubes for producing relative movement between tool and goods |
| 08/08/2007 | CN2932775Y Oil field oil extractor electricity-saving control cabinet |
| 08/08/2007 | CN101015116A Rectifier and system for controlling the speed of an electric motor |
| 08/08/2007 | CN101015115A Motor controller |
| 08/08/2007 | CN101013880A Special converter for pumping unit |
| 08/08/2007 | CN101013879A Intelligent control apparatus for multiple variable-frequency control system |
| 08/08/2007 | CN101013878A Half-wave rectifier motor and half-wave rectifier transformer |
| 08/08/2007 | CN101013876A Voltage decoupling variable-frequency control vector controlling method with parameter self-regulating function |
| 08/08/2007 | CN101013861A Electric power converting device and motor drive device using the same |
| 08/08/2007 | CN101012906A DSP based control-drive integrated two-freedom degree pan |
| 08/08/2007 | CN101012836A Variable-frequency speed-adjusting energy-saving water pump fuzzy control method |
| 08/02/2007 | WO2007086263A1 Electric motor drive apparatus and vehicle including the same |
| 08/02/2007 | WO2007086257A1 Electric compressor |
| 08/02/2007 | WO2007086235A1 Power source apparatus for vehicle, vehicle and method of controlling power source apparatus |
| 08/02/2007 | US20070176577 Motor controller |
| 08/02/2007 | US20070176576 Smart power converter |
| 08/02/2007 | US20070176575 Electric power converter and motor driving system |
| 08/02/2007 | US20070176574 Power converter topologies for better traction drive packaging |
| 08/02/2007 | DE102006003890A1 Verfahren zum Speichern von Betriebszustandsdaten eines Elektromotors sowie ein Elektromotor zur Durchführung eines solchen Verfahrens A process for storing operating condition data of an electric motor and an electric motor for performing such a method |
| 08/02/2007 | DE10055223B4 Stromdetektionseinrichtung und Stromdetektionsverfahren Current detection device and current detection method |
| 08/01/2007 | EP1814215A1 Electric power converter and motor driving system |