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Class Information
Number: 318/799
Name: Electricity: motive power systems > Induction motor systems > Primary circuit control > Responsive to motor condition > Responsive to speed or rotation phase angle
Description: Subject matter wherein the means to sense is responsive to the speed or the rotational phase angle of the motor being controlled or a device driven by the motor.


Sub-classes under this class:

Class Number Class Name Patents
318/804 With controlled magnetic reactance 66
318/800 With controlled power conversion 392


Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
7622879 Thermal protection apparatus and method for hybrid vehicles Nov. 24, 2009
7612517 Stepping motor controller and gaming machine Nov. 3, 2009
7598698 Motor control device Oct. 6, 2009
7595598 Magnetizing motor and magnetizing method thereof Sep. 29, 2009
7588124 Speed control method of elevator-purpose inverter and speed control apparatus thereof Sep. 15, 2009
7589489 Method and arrangement for controlling the electricity supply of an electronically commutated motor Sep. 15, 2009
7586286 Method and apparatus for motor control Sep. 8, 2009
7579805 Semiconductor device Aug. 25, 2009
7579800 Motor control method and device thereof Aug. 25, 2009
7557530 Method, apparatus and article for detecting rotor position Jul. 7, 2009
7554780 Inverter system, AC rotating machine and electric power converter Jun. 30, 2009
7545114 Parameterization method for a converter and converter implementing the method Jun. 9, 2009
7545116 Driver for induction motor and method of driving the same Jun. 9, 2009
7541765 Motor controlling circuit and method Jun. 2, 2009
7538514 Systems and methods for controlling torque of a motor May. 26, 2009
7535188 Motor driving apparatus, motor driving method and disk driving apparatus May. 19, 2009
7524400 Process for controlling torque in a calendering system Apr. 28, 2009
7521888 Electric motor controller for a domestic appliance Apr. 21, 2009
7508159 Method for controlling a cycle-skipping control system including computer readable code and controller for performing such method Mar. 24, 2009
7501786 Stabilizer control apparatus Mar. 10, 2009
7453231 Electric vehicle control device Nov. 18, 2008
7443127 Apparatus and method for motor control using table Oct. 28, 2008
7443130 Motor driving control device Oct. 28, 2008
7429847 Motor control device Sep. 30, 2008
7411370 Vector controller of induction motor Aug. 12, 2008
7408322 Device for determining constant of rotating machine Aug. 5, 2008
7403700 Motor control device Jul. 22, 2008
7362071 Rotation control device, rotation control method and construction machine Apr. 22, 2008
7342371 System and method for detecting motor run condition Mar. 11, 2008
7342380 System and method for adjustable carrier waveform generator Mar. 11, 2008
7342372 Method for power control of an electric motor Mar. 11, 2008
7332888 Driving apparatus for a motor Feb. 19, 2008
7310475 Motor driving apparatus Dec. 18, 2007
7279865 Method and apparatus for monitoring motor status using induced motor voltage Oct. 9, 2007
7274161 Motor driving apparatus Sep. 25, 2007
7245095 Control circuit of rotational speed of a fan Jul. 17, 2007
7245104 Position-sensorless motor control device Jul. 17, 2007
7196491 System and method for stall detection of a motor Mar. 27, 2007
7193383 Enhanced floating reference frame controller for sensorless control of synchronous machines Mar. 20, 2007
7190146 Control system and method for an overhead bridge crane Mar. 13, 2007
7187155 Leakage inductance saturation compensation for a slip control technique of a motor drive Mar. 6, 2007
7187152 AC servo drive without current sensor Mar. 6, 2007
7187154 Motor drive apparatus and electric power steering apparatus Mar. 6, 2007
7180262 Control system and method for electric drives with a.c. motors Feb. 20, 2007
7174270 Rotation angle detecting apparatus and method of detecting rotation angle Feb. 6, 2007
7164242 Variable speed drive for multiple loads Jan. 16, 2007
7138773 Multiple inverters for motors Nov. 21, 2006
7138772 Electrically movable vehicle and control program for driving electrically movable vehicle Nov. 21, 2006
7134290 Phase correction method and apparatus Nov. 14, 2006
7129659 Stabilizer apparatus for vehicle Oct. 31, 2006

1 2 3 4 5 6 7


 
 
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