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) |
---|
02/11/2009 | EP2023481A2 An electrical machine |
02/11/2009 | CN100461606C Inverter controlling apparatus for driving a motor and an air conditioner using same |
02/06/2009 | CA2638523A1 System for seamless estimation of speed and/or position, including standstill of a permanent magnet rotor of an electric motor |
02/05/2009 | WO2009015826A1 Method for controlling an induction motor |
02/05/2009 | US20090031991 Method And System For Controlling A Free-Piston Energy Converter |
02/04/2009 | EP2020746A1 Method for actuating an asynchronous motor |
02/03/2009 | US7486035 Power output apparatus and vehicle including such power output apparatus |
01/29/2009 | WO2009013693A1 Device for supplying a home automation actuator and operation method of said device |
01/29/2009 | WO2009013131A1 Stroke-regulated linear compressor |
01/29/2009 | DE102008034510A1 Steuerungsvorrichtung für einen Reluktanz-Synchronmotor Control device for a reluctance synchronous motor |
01/28/2009 | CN201188600Y Contactless speed-adjusting controller for coiling motor rotor |
01/28/2009 | CN201188599Y Power-saving controller for electric motor |
01/28/2009 | CN101355333A Control apparatus for reluctance type synchronous motor |
01/28/2009 | CN100456624C Motor driver and magnetic disc apparatus |
01/22/2009 | US20090021192 Switched Reluctance Machine And Method Of Operation Thereof |
01/22/2009 | US20090021089 Motor and control unit thereof |
01/21/2009 | EP2017955A2 Motor control apparatus |
01/21/2009 | EP2017954A2 Method for operating a universal motor and household device for caring for pieces of laundry |
01/21/2009 | EP2016669A1 Driving control apparatus and method for linear compressor |
01/21/2009 | CN101351957A Method and circuit for regulating the speed of a commutator series-wound motor |
01/21/2009 | CN101349924A Drive device and method |
01/21/2009 | CN100454748C Excitation of switch magnetic resistance motor |
01/21/2009 | CN100454747C Excitation circuit and control method for flux switching motor |
01/20/2009 | US7479755 Drive circuit for a synchronous electric motor |
01/14/2009 | EP2015444A2 Control system for a single phase motor, for instance a motor in a ventilator system |
01/14/2009 | EP1538963A4 Variable speed leaf blower |
01/14/2009 | CN201181926Y Automatic gear shifting system of paper chipper |
01/14/2009 | CN101346595A Application of a switched reluctance motion control system in a chiller system |
01/14/2009 | CN101346106A Adaptive drive system using current values for a personal care appliance |
01/14/2009 | CN101345509A Driving device and method |
01/08/2009 | DE102007054719A1 Electrical induction machine e.g. offshore-wind turbine, for e.g. wind power station, has electrical conductor of winding head resting in winding segments, where electrical conductor is connected with coil sides of coil of winding segments |
01/08/2009 | DE102007030383A1 Switching arrangement for small electrical device, has oscillating electric motor, capacitor, two electronic switches and gate circuit, where oscillating electric motor and capacitor are connected in series |
01/07/2009 | EP2012423A1 Ac motor driving apparatus and control method |
01/07/2009 | CN201178398Y Electricity economizer of three phase AC electric motor |
01/07/2009 | CN201178396Y Intelligent energy saving control apparatus of oil pumping machine dragging equipment |
01/07/2009 | CN201178395Y Automatic motor controlling apparatus by remote network |
01/07/2009 | CN101341652A Control of switched reluctance machines |
01/07/2009 | CN101340173A Method for suppressing pulse of linear motor pushing force system |
01/07/2009 | CN100449438C Method for regulating the current flowing through an electromagnetic actuator |
01/01/2009 | US20090001921 Electronic Method for Starting a Compressor |
12/31/2008 | EP2008861A1 Electric car drive control apparatus |
12/31/2008 | EP1698040A4 Switched dc electrical machine |
12/31/2008 | CN201174684Y Large-power high-reliable chopped series excitation speed regulating device |
12/31/2008 | CN201174682Y Intelligent motor controller |
12/31/2008 | CN201174681Y Slip ratio controlling digital intelligent speed regulating device for motor with electric grid fast switching function |
12/31/2008 | CN101335499A Controlling method of 4 phase permanent magnet fault tolerant motor |
12/25/2008 | US20080315818 Axial gap type motor/generator |
12/24/2008 | EP1645022A4 Pulse drive of resonant mems devices |
12/24/2008 | CN100446406C Control of motor |
12/18/2008 | WO2008152236A2 Reciprocating actuator with closed loop servocontrol |
12/18/2008 | CA2687069A1 Reciprocating actuator with closed loop servocontrol |
12/16/2008 | US7466098 Method for controlling operation of compressor and apparatus thereof |
12/12/2008 | CA2633370A1 Dual-motor whole body vibration machine with tilt mode |
12/12/2008 | CA2632463A1 Circuit and method for reducing a voltage being developed across a field winding of a synchronous machine |
12/10/2008 | EP2001123A1 Method for operating a three-phase rotating electric machine and device for implementing the method |
12/10/2008 | CN101320957A Control device of primary winding segmenting structure permanent magnet synchronous linear electric motor |
12/10/2008 | CN100441867C Apparatus and method for controlling operation of compressor |
12/04/2008 | US20080297097 Motor driver system and method for controlling motor driver |
12/04/2008 | US20080297095 Drive control circuit for polyphase motor capable of reducing variation among armature currents of respective phases, and spindle apparatus using the same |
12/04/2008 | US20080296976 Power system with multiple generator units |
12/04/2008 | US20080296896 Stirling Engine Instability Detection and Prevention |
12/03/2008 | EP1997220A1 Driving apparatus for fan using multiple him motor |
12/03/2008 | EP1664533A4 Linear motor controller improvements |
12/03/2008 | CN101317326A Apparatus and method for driving two-phase SRM electric motor |
12/03/2008 | CN101316093A Constant slip frequency vector control method and system for linear induction motor |
12/02/2008 | US7459824 High torque repulsion motor |
12/01/2008 | CA2631373A1 Washing machine apparatus and method |
11/27/2008 | US20080290764 Electrodynamic machine control |
11/27/2008 | DE102008024278A1 Elektrodynamikmaschinensteuerung Electrodynamics machine control |
11/27/2008 | DE102007020706A1 Polumschaltbare Asynchronmaschine für variable Speisefrequenz Multi-speed asynchronous variable supply frequency |
11/26/2008 | CN201156684Y Duplexing voltage air exhausting fan |
11/26/2008 | CN101313462A Driving an inductive load |
11/26/2008 | CN101313458A Driving mechanism for fan using multiple HIM motors |
11/26/2008 | CN100438318C Methods and apparatus for fault-tolerant control of electric machines |
11/26/2008 | CN100438316C Method for reducing the rotational speed of a drivetrain in a wind energy plant and wind energy plant with at least two nominal speeds |
11/20/2008 | WO2008116995A3 Method for operating a variable reluctance motor |
11/20/2008 | US20080284368 Apparatus and Method for Driving 2-Phase Srm |
11/20/2008 | US20080284361 Method and Circuit For Regulating the Speed of a Commutator Series-Wound Motor |
11/19/2008 | EP1992056A1 Method for the predictive closed-loop control of a linear drive or of a linear compressor and linear drive or linear compressor subject to predictive closed-loop control |
11/19/2008 | CN201153233Y Electronic tubular motor |
11/19/2008 | CN101308366A Fan speed-changer |
11/19/2008 | CN100435477C Electric motor speed and direction controller and method |
11/19/2008 | CN100435472C Operation of an electrical machine and system thereof |
11/13/2008 | DE102008019569A1 Wechselrichtertopologie für einen Elektromotor Inverter topology for an electric motor |
11/12/2008 | EP1990909A2 Control methodologies for a motor control module |
11/12/2008 | CN201150045Y All digital speed-regulating control cabinet for rotary drill |
11/12/2008 | CN101304233A Coiling type asynchronous motor rotor voltage/frequency synchronous tracking timing control system |
11/12/2008 | CN101304225A Motor energy-saving converting controller and control method |
11/12/2008 | CN100433539C Motor control apparatus and electric appliance using the same |
11/12/2008 | CN100433538C Drive circuit of PWM motor |
11/06/2008 | US20080272721 Control of a brushless electrical machine |
11/06/2008 | US20080272719 Selectively configurable electric motor |
11/06/2008 | US20080272669 Electric Machine, in Particular a Synchronous Motor, With Redundant Stator Windings |
10/30/2008 | US20080265828 Variable frequency reduced speed variation electric drive |
10/30/2008 | US20080265804 Speed Control of a Variable Speed Motorized System |
10/30/2008 | DE102005036802C5 Verfahren und Vorrichtung zur Steigerung der Effizienz eines Elektromotors Method and apparatus for increasing the efficiency of an electric motor |
10/29/2008 | EP1986318A2 Motor control device |
10/28/2008 | US7443126 Controller for synchronous machine |
10/28/2008 | US7443125 Power conversion apparatus |
10/23/2008 | US20080258656 Control apparatus for electric vehicles |