| Patents for H02P 4 - Arrangements specially adapted for regulating or controlling the speed or torque of electric motors that can be connected to two or more different voltage or current supplies (242) |
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| 03/11/2010 | US20100060216 Blower motor for hvac systems |
| 03/11/2010 | US20100060214 Blower motor for hvac systems |
| 01/21/2010 | US20100013427 Motor controller system and method for maximizing energy savings |
| 01/07/2010 | WO2010000865A1 A motor |
| 12/24/2009 | DE102008029574A1 Electrical drive unit for use in wind power machine i.e. windmill, to adjust rotor blades, has commutator provided for successively connecting supply terminals with potentials, where supply terminals are provided in three-phase motor |
| 12/09/2009 | CN100568686C Method for controlling operation of compressor and apparatus thereof |
| 11/12/2009 | DE102008022077A1 Schaltung zur Speisung einer Antriebsmaschine mit mehreren Wicklungssystemen Circuit for supplying a driving machine with several winding systems |
| 10/29/2009 | US20090267556 Fuel cell drive system |
| 10/22/2009 | DE102008019910A1 Electric motor, has stator comprising oppositely faced coils that are switchable in parallel or in series, where switching of oppositely faced coils takes place in course of plugging-in accumulator |
| 10/01/2009 | DE102008016472A1 Circuit arrangement for operating universal motor of washing machine, has potential transformer coupled with electrical machine to convert supply voltage into operating voltage, where control- and/or regulating unit controls transformer |
| 09/24/2009 | US20090237012 Cordless power tool and battery device used for same |
| 09/23/2009 | EP2104223A2 Switching unit for controlling an electronically commuted ventilation motor |
| 09/17/2009 | WO2009112629A1 Conveyor system |
| 09/10/2009 | US20090227418 Methods and Systems for Regulating Hill Descent Speed of an Electric Vehicle |
| 08/19/2009 | CN100529400C Torque control device of compressor and method thereof |
| 08/12/2009 | EP2088669A2 Apparatus and method to operate machines at single phase alternating current or three phase alternating current for mortar processing |
| 08/05/2009 | CN101499752A Interlock circuit |
| 05/28/2009 | US20090134828 Method and system for operating an electric motor coupled to multiple power supplies |
| 04/16/2009 | US20090096399 Intelligent motorized appliances with multiple power sources |
| 04/09/2009 | US20090091277 Dust extractor for a battery-operated electric hand-held power tool |
| 03/12/2009 | US20090066277 Voltage Conversion Apparatus and Vehicle Including the Same |
| 03/12/2009 | DE102008034773A1 Power tool i.e. magnetic-base drill press, has power supply switching unit electrically coupled to power source and power input and selectively and electrically coupling motor with power source or power input |
| 03/04/2009 | CN100466451C Motor control circuit of waste paper destroying machine |
| 02/05/2009 | US20090033274 System for using a multi-phase motor with a double-ended inverter system |
| 02/05/2009 | US20090033266 Solid state switch gate firing with phase shift delay line |
| 02/05/2009 | US20090033252 Double ended inverter system for a vehicle having two energy sources that exhibit different operating characteristics |
| 02/05/2009 | US20090033251 Series-coupled two-motor drive using double-ended inverter system |
| 01/09/2009 | CA2636870A1 Power tools |
| 12/31/2008 | CN101332832A Match design method of vehicle electric power-assisted steering electric motor |
| 12/18/2008 | US20080309261 Electric drive fuel control system and method |
| 12/10/2008 | CN101322304A Rechargeable vacuum with reduced AC voltage |
| 12/04/2008 | US20080297086 Cleaner and method for driving the same |
| 11/27/2008 | US20080290824 Apparatus and method for controlling operation of motor |
| 11/04/2008 | US7446491 Intelligent power management for actuators |
| 10/23/2008 | US20080256742 housings contains a rechargeable battery and a cord reel; alternately operating in a battery mode and a mains mode; and charging the rechargeable battery during operation in the mains mode; can be used in certain area without power outlet closed by |
| 10/09/2008 | US20080246363 Controller of electric motor |
| 10/08/2008 | CN201130918Y Controller for switching bidirectional power supply of AC motor |
| 10/01/2008 | CN201125715Y Direct drive tower type oil pumping machine |
| 09/17/2008 | EP1969702A1 Rechargeable vacuum with reduced ac voltage |
| 09/04/2008 | US20080211441 Motor controller of electric power steering device |
| 09/04/2008 | US20080211437 Power supply system for driving electric rotating machine |
| 08/20/2008 | CN201103555Y Intelligent electricity economizer of fan water pump |
| 06/19/2008 | DE102006058613A1 Vacuum cleaner e.g. floor vacuum cleaner has battery and cable drum arranged in housing as permanently integrated components so as to selectively operate vacuum cleaner on battery power and on mains voltage |
| 06/12/2008 | US20080135357 Electromechanical Braking System |
| 06/05/2008 | US20080133076 Efficiency optimized hybrid operation strategy |
| 06/05/2008 | US20080131287 Vsd Control |
| 06/05/2008 | US20080129234 Activation current for dc motor having brake and emergency operation supply unit |
| 05/15/2008 | US20080111421 Modular and scalable power conversion system for aircraft |
| 04/24/2008 | DE102006049490A1 Direct current motor operating control circuit for wind- or water power plant, has stopping brake that is connected either with three-bridge power inverter or emergency operation supply device over emergency operation-brake-switching unit |
| 04/17/2008 | US20080088266 Hybrid electric device |
| 04/17/2008 | US20080086997 Hybrid electric device |
| 02/06/2008 | CN101119089A Motor drive interlock circuit |
| 01/08/2008 | US7317296 Electric motor |
| 08/29/2007 | CN100334802C Frequency converter for different mains voltages |
| 07/18/2007 | CN101000051A Torque control device of compressor and method thereof |
| 06/28/2007 | WO2007073415A1 Rechargeable vacuum with reduced ac voltage |
| 06/14/2007 | DE102005058140A1 Vorrichtung und Verfahren zur Steuerung eines Energieflusses zwischen einer Solarenergiequelle und einem elektrischen Motor Apparatus and method for controlling an energy flow between a solar power source and an electric motor |
| 05/22/2007 | US7221121 Frequency converter for different mains voltages |
| 04/19/2007 | WO2007042747A1 Method of operating a pumping system |
| 12/13/2006 | EP1732202A2 Electrical power conversion |
| 09/12/2006 | US7106012 Electronic control unit, electric power-assisted steering device and transmission ratio-variable steering unit |
| 02/01/2006 | CN1729609A Method for controlling operation of compressor and apparatus thereof |
| 01/24/2006 | US6989650 AC motor control system using parallel integrated sub systems |
| 10/12/2005 | CN1223076C Operation of switch magneto-resistance drive system using double voltage source |
| 08/02/2005 | US6924618 Inverter controller for driving motor, and air conditioner |
| 07/26/2005 | US6922038 Speed control circuit for a dc brushless motor |
| 03/31/2005 | US20050068001 Frequency converter for different mains voltages |
| 03/17/2005 | US20050057213 AC motor control system using parallel integrated sub systems |
| 03/02/2005 | CN1589519A Frequency converter for different mains voltages |
| 02/08/2005 | US6853159 Apparatus and method for generating torque |
| 12/30/2004 | US20040263101 Apparatus and method for generating torque |
| 12/16/2004 | US20040251869 Electric motor |
| 11/24/2004 | EP1480327A1 Electric motor |
| 11/23/2004 | US6822419 Speed control circuit for a DC brushless motor |
| 11/04/2004 | US20040217730 Speed control circuit for a dc brushless motor |
| 11/03/2004 | CN1543047A Inverter controller for driving motor, and air conditioner |
| 10/21/2004 | US20040207360 Inverter controller for driving motor, and air conditioner |
| 08/18/2004 | EP1446869A1 Frequency converter for different mains voltages |
| 07/13/2004 | US6762595 Power distribution system |
| 03/23/2004 | US6710571 Household electrical appliance operable at more than one A.C. frequency |
| 11/13/2003 | US20030210007 Input power control device |
| 10/23/2003 | US20030197483 Speed control circuit for a dc brushless motor |
| 09/30/2003 | US6628105 Operation of switched reluctance drive systems from dual voltage sources |
| 07/24/2003 | US20030137285 Power distribution system |
| 05/30/2003 | WO2003044939A1 Frequency converter for different mains voltages |
| 12/17/2002 | US6495985 Operation of a switched reluctance machine from dual supply voltages |
| 09/11/2002 | CN1090738C Air conditioner controller |
| 08/22/2002 | US20020113567 Electric household appliance with a synchronous motor |
| 07/03/2002 | CN1356766A Operation of switch magnetoresistance drive system using double voltage source |
| 05/29/2002 | EP1209790A1 Switched reluctance drive operated from dual voltage sources and method for operating the same |
| 01/01/2002 | US6335871 Motor operation controller and insulation type bidirectional DC voltage converter |
| 12/06/2001 | DE10025735A1 Voltage converting frequency converter has wide voltage input range between 70, 300 volts at 50 to 60 Hz, between 11,100 volts d.c., input control circuit interacting with converter input |
| 10/31/2001 | EP0931378B1 Operating system for a vacuum pump |
| 10/25/2001 | WO2001080415A1 Electric household appliance with a synchronous 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 |
| 12/29/1999 | CN1047895C Motor operation controller and insulation type bidirectional DC voltage converter |
| 07/28/1999 | EP0931378A1 Operating system for a vacuum pump |
| 07/27/1999 | US5929591 Air conditioner |
| 04/23/1998 | WO1998016995A1 Operating system for a vacuum pump |