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)
11/2007
11/28/2007CN100352147C Reacting force treating system of operation table device
11/28/2007CN100352146C Opening/closing reluctance motor and initial driving method
11/28/2007CN100351519C Linear compressor and device for controlling same
11/22/2007WO2007089529A3 Permanent magnet disc motor with dual stators and its control
11/22/2007US20070267926 Mechatronic integration of motor drive and E-machine, especially smart-E-motor
11/22/2007DE102006021498A1 Electrical alternating current machine e.g. induction machine, for use in e.g. collector design, has winding arrangement with winding segments that are switched such that some windings are supplied with current of different amperages
11/21/2007EP1597818B1 Method and apparatus for adjustment of the rotor angle of an elevator motor
11/20/2007US7298106 Motor driving device and motor driving method
11/17/2007CA2589400A1 Medical instrument having a catheter and having a catheter accessory device and method for using
11/15/2007WO2006111252A8 Heat treatment of metal work pieces
11/14/2007EP1522141B1 Motor control system and method with adaptive current profile
11/14/2007CN200976564Y PWM motor driving circuit
11/14/2007CN200976562Y Electromagnetic speed governing brake motor
11/08/2007WO2007126024A1 Servo motor control device and method
11/07/2007EP1852965A1 Apparatus and method of controlling synchronous reluctance motor
11/07/2007CN200973067Y Single-phase electric saving for sewing machine
11/07/2007CN101068103A Diesel engine linear electric motor speed regulating actuator
11/07/2007CN100347944C Induction motor controller
11/07/2007CN100347943C Induction motor controller
11/06/2007US7292012 Control method of generator
11/01/2007WO2007123323A1 Driving control apparatus and method for linear compressor
11/01/2007US20070252551 Control of Electrical Machines
11/01/2007US20070252543 Electric Drive for a Vehicle
10/2007
10/31/2007CN200969551Y Single-phase tap speed governing motor
10/30/2007US7288915 Rotor position detection of an electrical machine
10/30/2007US7288911 System and method for commutating a motor
10/25/2007US20070247014 Communicator Motor Having Number of Field Winding Groups
10/25/2007CA2629725A1 Application of a switched reluctance motion control system in a chiller system
10/18/2007US20070241705 Method & arrangement for sensorless operation of an electronically commutated motor
10/17/2007CN200962576Y Automatic capacitance-changing energy-saving electromotor
10/17/2007CN101056082A Motor drive circuit
10/11/2007WO2007114109A1 Ac motor driving apparatus and control method
10/11/2007WO2007114058A1 Permanent magnet synchronization motor magnetic pole position detecting method
10/10/2007EP1842484A1 Control system of an electric motor for surgical applications
10/10/2007EP1529335B1 Device for controlling power by phase control, and method for reducing harmonic waves
10/10/2007CN200959587Y Controller of double-speed asynchronous motor
10/09/2007US7280308 Motor drive semiconductor integrated circuit and magnetic disk storage apparatus
10/09/2007US7279864 Control unit for driving a regulating transistor of a fan arrangement
10/09/2007US7279860 System and method for evaluating back electromotive force in a motor
10/04/2007WO2007110328A1 Injection moulding machine
10/04/2007US20070228844 Alignment apparatus and exposure apparatus using the same
10/03/2007EP1841056A1 A motor controller
10/03/2007CN200956563Y High-voltage AC winding motor rotor variable frequency speed-regulating control system
10/03/2007CN101047360A Method and apparatus for increasing AC motor torque output at low frequency
10/03/2007CN100341236C Motor control apparatus
10/02/2007US7276821 Moving magnet type linear slider
09/2007
09/26/2007EP1837629A1 Method and device for estimating displacements of the rotor of a motor
09/26/2007EP1836765A1 Transistor matrix switched reluctance variable speed motor drive
09/26/2007EP1358711B1 Power converter device for one of several motor windings on a reluctance motor
09/26/2007CN101043197A 驱动电路 Drive circuit
09/26/2007CN100340058C Three-phase AC. electric motorelectricity-saver
09/25/2007US7274866 Power tool and method for controlling a power tool
09/20/2007DE102006011993A1 Control loop drive for working unit e.g. manure distributor, of land vehicle e.g. agricultural machine, has three-phase alternator, drive motor e.g. three-phase motor, and frequency converter forming electrically encapsulated unit
09/19/2007EP1835615A2 Motor speed control systems
09/19/2007EP1835614A1 Motor control device
09/19/2007EP1834405A1 Method for regulating the current supply of a coil of a reluctance motor and electric circuit arrangement for said method
09/19/2007CN200948752Y Electric automobile motor controller bus wire polar plate
09/19/2007CN100338870C High-slip frequency speed-adjusting method and its mechanism
09/18/2007US7271564 Method, apparatus, and system for drive control, power conversion, and start-up control in an SRM or PMBDCM drive system
09/18/2007US7271556 Method and apparatus for estimating rotor position of switched reluctance motor, and method and apparatus for sensorless control of switched reluctance motor
09/12/2007CN200946578Y Stepless adjusting mechanism for electric fan shaking angle
09/12/2007CN101036287A Linear motor system
09/12/2007CN101034638A High-current low-voltage DC electromotor control switch
09/11/2007US7268516 Circuit for use with switched reluctance machines
09/07/2007WO2007098973A1 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
09/05/2007CN200944576Y Automatic control device of double fed motor generating maximum advancing reactive power
09/04/2007US7265516 Linear electric motor controller and system for providing linear control
09/04/2007US7265505 Control apparatus for selectively driving plural stator windings of synchronous motor
08/2007
08/30/2007US20070201842 Switched Dc Electrical Machine
08/29/2007EP1683263B1 Method for operating a synchronous machine
08/29/2007CN101026330A Magnetic micromotion machine
08/28/2007US7262578 Direct control of an induction motor
08/28/2007US7262576 Method for driving a synchronous electric motor in particular for fans
08/23/2007US20070195451 Motor drive semiconductor integrated circuit and magnetic disk storage apparatus
08/23/2007US20070194734 Method and device for controlling a multiphase electronically commutated motor
08/23/2007US20070193794 Vehicle for materials handling and other industrial uses
08/22/2007EP1821401A1 Improved method and apparatus for movable element position detection in an electrically commutated machine
08/22/2007EP1820265A2 Method for controlling a heat engine vehicle driving assembly
08/22/2007EP1820264A1 Method for controlling the operation and continuous current mode of a drive assembly for a motor vehicle provided with an internal combustion engine
08/22/2007EP1820263A1 System and method of restarting a switched reluctance motor after a rapid cycling of power
08/22/2007EP1820262A2 Operation control device and method of compressor
08/22/2007EP1163716B1 Electronic controller for an electric hand tool
08/22/2007CN1333517C Method for starting and controlling switch reluctance motor no-rotor position sensor
08/22/2007CN101022050A 控制器 Controller
08/16/2007WO2007057817A3 Driver for an inductive load
08/16/2007US20070188121 Motor and drive control system thereof
08/16/2007US20070186582 Air-seperation apparatus, integrated air-separation and metal-production apparatus, and method of starting one such air-separation apparatus
08/15/2007EP1818135A1 Linear drive apparatus
08/09/2007WO2007089529A2 Permanent magnet disc motor with dual stators and its control
08/09/2007US20070182353 Motor control apparatus
08/09/2007DE102006004277A1 Rotary semiconductor machine for motor and generator operation, has stator and rotor connected by suitable electronic control on speed-torque-characteristics, so that start-up mode combines currently known speed-torque-characteristics
08/08/2007CN1331304C Driving unit
08/07/2007US7253576 E/I core actuator commutation formula and control method
08/02/2007WO2007061901A3 Method and apparatus for quiet fan speed control
08/01/2007CN1330075C Motor with variable rotational speed
08/01/2007CN101010870A System and method of restarting a switched reluctance motor after a rapid cycling of power
08/01/2007CN101010530A Selector drive for automatic manual transmissions of motor vehicles
08/01/2007CN101009455A Long range big-push force permanent-magnet brushless linear DC motor
07/2007
07/31/2007US7250740 Method and apparatus for generating pulse-width modulated waveform
07/26/2007DE19924025B4 Erregungssteuerungseinrichtung für eine Phasenspule eines elektrischen Motors Excitation controller for a phase coil of an electric motor
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