Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02P - Control or regulation of electric motors, generators, or dynamo-electric converters; Controlling transformers or reactors or choke coils › H02P 25 - Arrangements or methods for the control of ac-motors characterised by the kind of ac-motor or by structural details
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)
12/2003
12/31/2003WO2004000089A1 Variable speed leaf blower
12/31/2003CA2493368A1 Variable speed leaf blower
12/31/2003CA2483672A1 Adaptive control architecture for electric machines
12/25/2003US20030233877 System and method for determining the resonant frequency and/or amplitude of an oscillating appliance such as a power toothbrush
12/25/2003US20030233730 Variable speed leaf blower
12/24/2003CN1463486A Linear compressor drive device
12/18/2003WO2003079755A3 An asymmetric drive motor for a barrier operator or the like
12/18/2003US20030231963 Apparatus and method to control a linear compressor
12/17/2003EP1372259A1 Method and apparatus for driving complex impedance loads in voltage-mode
12/04/2003WO2003100958A1 An apparatus for drive control, power conversion, and start-up control
12/04/2003WO2003100957A2 Method, apparatus, and system for drive control, power conversion, and start-up control
12/04/2003WO2003100956A1 Apparatus and method for identifying an operational phase and controlling energization
12/04/2003WO2003100948A1 Pmbdcm and two-phase srm motor
12/04/2003WO2003100944A1 Radial-axial electromagnetic flux electric motor, coaxial electromagnetic flux electric motor, and rotor for same
12/04/2003US20030222617 Motor control apparatus
12/03/2003CN1459921A Driving device for linear motor
12/02/2003US6657847 Method of using inductance for determining the position of an armature in an electromagnetic solenoid
12/02/2003US6657413 Driving equipment for synchronous motors
11/2003
11/27/2003US20030218819 Rotational vibration velocity-based sensor for disk drives
11/25/2003US6653808 Electric motor control device
11/20/2003WO2003096523A1 Reduced energy multiple-function digital controller for motors and appliances
11/20/2003US20030214266 Circuit configuration for permanent magnet synchronous motor control
11/18/2003US6650245 Multi-functional hybrid contactor
11/18/2003US6650083 Speed control apparatus of synchronous reluctance motor and method thereof
11/12/2003CN1127731C Improved notch filtering as used in disc drive servo
11/11/2003US6646851 Circuit arrangement for operating a solenoid actuator
11/11/2003US6646409 Apparatus for controlling rotation speed of motor
11/11/2003US6646408 Method for controlling operating of switched reluctance motor (SRM)
11/11/2003US6646407 Electric motor control having DC-DC converter and method of using same
11/11/2003US6646406 Electrical machines
11/05/2003EP1358711A1 Power converter device for one of several motor windings on a reluctance motor
11/05/2003EP1004164B1 Method and system for varying and regulating a motor speed
11/05/2003CN1127197C Method and device for controlling speed of a washing machine motor
11/04/2003US6643088 Magnetic disk drive and method of controlling a movement of carriage in an unload operation of head
11/04/2003US6642683 Controller and associated drive assembly for power sharing, time sliced control of a brushless direct current motor
10/2003
10/29/2003EP1357657A1 Stop control device for single-phase asynchronous motor with capacitor
10/29/2003EP1357275A1 Modelling of the thermal behaviour of a switched reluctance motor driving a supercharger of an internal combustion engine
10/29/2003EP1356486A1 System and method for servo control of nonlinear electromagnetic actuators
10/28/2003US6639378 Current chopping in switched reluctance drive systems
10/28/2003US6639373 Driver circuit for a voice coil motor in a disk drive system
10/28/2003US6639338 Controlled reluctance AC induction motor
10/28/2003US6638122 Electric marine propulsion employing switched reluctance motor drive
10/23/2003US20030198464 Speed-control drive circuit for a D.C. brushless fan motor
10/21/2003US6636772 System and method for enabling device operation attribute-controlling commands to be entered and indicated by the operation of elements from outside the device
10/16/2003WO2003085801A2 High phase order elctrical rotating machine with distributed windings
10/16/2003US20030193310 Diagnostic method for an electric motor using torque estimates
10/16/2003US20030193309 Control method for switched reluctance motor
10/16/2003DE20312831U1 Parallel switched brushless double phase full wave dc motor has two sensor drive element controls
10/14/2003US6633149 Method for digital control of a universal motor, in particular for electrical household appliances
10/07/2003US6631045 Method and apparatus for ramp loading in a hard disk drive using pulse width modulation
10/07/2003CA2232888C Simplified control for running a switched reluctance motor
10/02/2003WO2003081765A1 Synchronous reluctance motor control device
10/02/2003WO2003079755A2 An asymmetric drive motor for a barrier operator or the like
10/02/2003CA2478820A1 An asymmetric drive motor for a barrier operator or the like
10/01/2003EP1349265A1 Linear compressor drive device
10/01/2003EP1349028A2 Control device of a roller shutter driving motor
09/2003
09/30/2003US6628105 Operation of switched reluctance drive systems from dual voltage sources
09/30/2003US6628100 Controller for electrical machines
09/30/2003US6628004 Device and method for generating a partially synthesized signal with very good dynamic quality for the acceleration of a rotor in an electrical drive mechanism
09/25/2003WO2003079534A1 Ac motor vector control method and ac motor
09/25/2003US20030179359 Stage system
09/25/2003US20030178962 Asymmetric drive motor for a barrier operator or the like
09/25/2003US20030178957 Asymmetric drive motor for a barrier operator or the like
09/24/2003EP1236266B1 High stability dynamic force reluctance motor
09/24/2003EP1188221A4 Linear motor
09/23/2003US6623246 Apparatus and method for controlling operation of linear motor compressor
09/18/2003US20030173835 Vibrating linear actuator and portable information apparatus having the same
09/16/2003CA2348870C Soft turn-off controller for switched reluctance machines
09/11/2003US20030169012 Method of controlling a motor and device therefor
09/04/2003US20030164691 Linear compressor drive device
09/03/2003EP1341295A1 Power supply circuit for a three-phase motor
09/02/2003US6614195 Linear actuator control structure
09/02/2003US6614137 Linear motor, driving and control system thereof and manufacturing method thereof
08/2003
08/27/2003EP1339163A1 PWM/linear driver for an electromagnetic load
08/27/2003EP0879499B1 Method for powering an electronically switched variable-reluctance electric motor, and power supply circuit therefor
08/27/2003EP0876705B1 Method for powering an electronically switched variable reluctance motor, and power supply circuit therefor
08/21/2003US20030155896 PWM/linear driver for an electromagnetic load
08/19/2003US6608462 Method and system for determining rotor position in a switched reluctance machine
08/19/2003US6608426 Driving device of a vibration type actuator
08/19/2003CA2171107C Pulse width modulating motor controller
08/14/2003WO2003067739A1 Single phase induction motor with partially shared windings
08/14/2003CA2474499A1 Single phase induction motor with partially shared windings
08/07/2003US20030146732 Single phase induction motor with partially shared windings
08/07/2003US20030146730 Power failure tolerant motor drives for dual voltage systems
08/06/2003EP1333327A2 Stage system
08/06/2003EP1333251A1 Angle or position determining device and method, servo device and servo method, and motor
07/2003
07/31/2003WO2003007468A9 Variable speed controller for air moving applications using an acinduction motor
07/30/2003EP1330864A2 Xyz-axes table
07/29/2003US6600618 Time domain voice coil motor control circuit and method
07/22/2003US6595756 Electronic control system and process for electromagnetic pump
07/15/2003US6593720 Method of optimizing performance parameters of a switched reluctance motor
07/10/2003US20030128003 Methods and apparatus to improve the performance of universal electric motors
07/09/2003CN1429422A Reluctance motor and method for controlling reluctance motor
07/09/2003CN1114255C Reluctance motor with fractional pitch winding and drive thereof
07/03/2003WO2003054978A2 Vibrating linear actuator and portable information apparatus having the same
07/02/2003EP1324484A2 Rotor position detection of a switched reluctance device
07/02/2003CN1427541A Rotor position detecting for conversion-type magnetic resistance drive
07/01/2003US6586904 Compensation for variable voltage
07/01/2003US6586903 Rotor position monitoring of a reluctance drive
07/01/2003US6586897 Method of controlling alignment of a rotator of SRM and SRM driving circuit for realizing the same
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