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