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Class Information
Number: 318/779
Name: Electricity: motive power systems > Induction motor systems > Primary circuit control > Starting control > With speed control
Description: Subject matter wherein means are provided for controlling motor speed during any mode of motor operation.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619385 |
Motor controller, washing machine, air conditioner and electric oil pump |
Nov. 17, 2009 |
| 7596304 |
Starting device and method for eliminating a peak current |
Sep. 29, 2009 |
| 7579804 |
Method to measure the angular speed of an induction motor |
Aug. 25, 2009 |
| 7570009 |
Fan system and its control device and control method |
Aug. 4, 2009 |
| 7525278 |
Voltage conversion apparatus, power output apparatus, and control method of voltage converter |
Apr. 28, 2009 |
| 7498763 |
Apparatus and method for reducing the current drawn during starting of a single-phase AC asynchronous motor |
Mar. 3, 2009 |
| 7471058 |
Starting device and starting method for a single-phase induction motor |
Dec. 30, 2008 |
| 7417389 |
Speed control for an electric motor |
Aug. 26, 2008 |
| 7345449 |
Method of rotating a polyphase motor at less than rated speed |
Mar. 18, 2008 |
| 7315147 |
Motor and motor drive system |
Jan. 1, 2008 |
| 7291995 |
Air fan rotation speed control method and structure thereof |
Nov. 6, 2007 |
| 7265506 |
Noise improved linear DC motor control systems and methods |
Sep. 4, 2007 |
| 7218075 |
Electronic circuit for starting a single phase induction motor |
May. 15, 2007 |
| 7141948 |
Electromotive power steering system |
Nov. 28, 2006 |
| 7138772 |
Electrically movable vehicle and control program for driving electrically movable vehicle |
Nov. 21, 2006 |
| 7091691 |
Variable speed motor |
Aug. 15, 2006 |
| 7084598 |
Driver of electric compressor |
Aug. 1, 2006 |
| 7075260 |
Motor controlling method and apparatus thereof |
Jul. 11, 2006 |
| 7068009 |
Drive arrangement, especially for a lifting mechanism and/or a traveling drive |
Jun. 27, 2006 |
| 7047770 |
Washing machine agitation action control |
May. 23, 2006 |
| 7026785 |
Motor controller |
Apr. 11, 2006 |
| 7023167 |
Control arrangement for an induction motor compressor having at least three windings, a torque-augmentation circuit a starting capacitor and a resistive element |
Apr. 4, 2006 |
| 7023169 |
Method for changing speed of motor group |
Apr. 4, 2006 |
| 6946815 |
Switch for a variable-speed induction motor |
Sep. 20, 2005 |
| 6924611 |
Brushless motor drive device |
Aug. 2, 2005 |
| 6831431 |
Method for regulating the rotational speed of a motor and a motor for carrying out a method of this type |
Dec. 14, 2004 |
| 6815926 |
Single phase induction motor with partially shared windings |
Nov. 9, 2004 |
| 6806677 |
Automatic control switch for an electric motor |
Oct. 19, 2004 |
| 6741061 |
Efficient stator |
May. 25, 2004 |
| 6737828 |
Washing machine motor drive device |
May. 18, 2004 |
| 6713986 |
Controller for air conditioners and heat pumps |
Mar. 30, 2004 |
| 6680997 |
System and method for enabling a high torque/high speed brushless DC motor |
Jan. 20, 2004 |
| 6597140 |
Sensorless motor starting system |
Jul. 22, 2003 |
| 6586905 |
Automatic sensing of bypassing of soft starter or controller |
Jul. 1, 2003 |
| 6501244 |
Method and apparatus for controlling a high-speed AC permanent magnet synchronous motor coupled to an industrial turbo engine |
Dec. 31, 2002 |
| 6492789 |
Method and apparatus for controlling a high-speed AC permanent magnet synchronous motor coupled to an industrial turbo engine |
Dec. 10, 2002 |
| 6481974 |
Fan motor with constant speed control by a microprocessor system |
Nov. 19, 2002 |
| 6420848 |
Method and controlling the starting of an AC induction motor with closed loop current control |
Jul. 16, 2002 |
| 6380708 |
Method for controlling the starting of an AC induction motor |
Apr. 30, 2002 |
| 6369544 |
Furnace and air conditioner blower motor speed control |
Apr. 9, 2002 |
| 6346790 |
Induction motor system with an induction motor and an electrically isolated voltage modulation motor controller |
Feb. 12, 2002 |
| 6307275 |
Method and apparatus for controlling a high-speed AC permanent magnet synchronous motor coupled to an industrial turbo engine |
Oct. 23, 2001 |
| 6288510 |
Drive controller for motor-driven high-speed rotating body and method for discriminating type of machine used therefor |
Sep. 11, 2001 |
| 6175208 |
High efficiency permanent split capacitor motor for driving a compressor |
Jan. 16, 2001 |
| 6141401 |
Drive device for a rotary anode of an X-ray tube, and method of controlling the drive device |
Oct. 31, 2000 |
| 6040666 |
Machine tool control system and machine tool control method, and detection system and detection method therefor |
Mar. 21, 2000 |
| 6025682 |
Infinitely variable wash action |
Feb. 15, 2000 |
| 5952798 |
Brushless DC motor assembly control circuit |
Sep. 14, 1999 |
| 5894209 |
Apparatus for and method of controlling stepping motor |
Apr. 13, 1999 |
| 5892349 |
Control circuit for two speed motors |
Apr. 6, 1999 |
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