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Class Information
Number: 318/767
Name: Electricity: motive power systems > Induction motor systems > Primary circuit control
Description: Subject matter wherein the system to supply and or control the motor includes a circuit connected to the primary winding of the motor.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7612520 |
Method for operating a delta wound three-phase permanent magnet brushless motor |
Nov. 3, 2009 |
| 7602138 |
Driving apparatus and driving system for electric motor |
Oct. 13, 2009 |
| 7579805 |
Semiconductor device |
Aug. 25, 2009 |
| 7576511 |
Motor control device and motor control method |
Aug. 18, 2009 |
| 7560896 |
Vector control apparatus for permanent magnet motor |
Jul. 14, 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 |
| 7508156 |
Electrical machine having a series chopper circuit |
Mar. 24, 2009 |
| 7508637 |
Antilock system for a permanently excited electric motor drive |
Mar. 24, 2009 |
| 7394975 |
Drive circuit for a sensored brushless DC motor |
Jul. 1, 2008 |
| 7394629 |
Motor overload tripping system and method with multi-function circuit interrupter |
Jul. 1, 2008 |
| 7385371 |
Vector controller for induction motor |
Jun. 10, 2008 |
| 7346462 |
System, method, and article of manufacture for determining parameter values associated with an electrical grid |
Mar. 18, 2008 |
| 7282887 |
Laser diode triggered soft start controller for a polyphase electric motor |
Oct. 16, 2007 |
| 7279865 |
Method and apparatus for monitoring motor status using induced motor voltage |
Oct. 9, 2007 |
| 7271565 |
Apparatus for controlling speed of fan motor of air-conditioner |
Sep. 18, 2007 |
| 7239109 |
Single-phase induction motor |
Jul. 3, 2007 |
| 7224141 |
Position controller of motor |
May. 29, 2007 |
| 7221121 |
Frequency converter for different mains voltages |
May. 22, 2007 |
| 7190143 |
Pulse width modulation (PWM) rectifier with variable switching frequency |
Mar. 13, 2007 |
| 7116077 |
Diagnostic system and method for an electric motor using torque estimates |
Oct. 3, 2006 |
| 7102326 |
Motor speed variator and a driving method thereof |
Sep. 5, 2006 |
| 7095192 |
Rotating electric machine for automotive application |
Aug. 22, 2006 |
| 7088073 |
Inverter drive system |
Aug. 8, 2006 |
| 7084604 |
Speed sensorless control of an induction machine using a PWM inverter with output LC filter |
Aug. 1, 2006 |
| 7081734 |
Ride-through method and system for HVACandR chillers |
Jul. 25, 2006 |
| 7034500 |
Electric drive assembly |
Apr. 25, 2006 |
| 7026785 |
Motor controller |
Apr. 11, 2006 |
| 7019486 |
Motor control device |
Mar. 28, 2006 |
| 7016793 |
Method and apparatus for anti-islanding protection of distributed generations |
Mar. 21, 2006 |
| 6876171 |
Driving apparatus and method of three phase induction motor |
Apr. 5, 2005 |
| 6831466 |
Method and system for sensor fault detection |
Dec. 14, 2004 |
| 6815925 |
Systems and methods for electric motor control |
Nov. 9, 2004 |
| 6806677 |
Automatic control switch for an electric motor |
Oct. 19, 2004 |
| 6784634 |
Brushless doubly-fed induction machine control |
Aug. 31, 2004 |
| 6777907 |
Current ripple reduction by harmonic current regulation |
Aug. 17, 2004 |
| 6693406 |
Method of controlling a motor and a power supply apparatus |
Feb. 17, 2004 |
| 6653809 |
Method for head positioning |
Nov. 25, 2003 |
| 6636013 |
Method of rapidly starting an asynchronous motor |
Oct. 21, 2003 |
| 6611124 |
Control apparatus of induction motor |
Aug. 26, 2003 |
| 6563287 |
Method of controlling three phase motor starting sequence |
May. 13, 2003 |
| 6489742 |
Efficiency maximizing motor controller and method |
Dec. 3, 2002 |
| 6479961 |
Starting system for an electric motor |
Nov. 12, 2002 |
| 6445157 |
Method for operating an electric generator/motor system |
Sep. 3, 2002 |
| 6346790 |
Induction motor system with an induction motor and an electrically isolated voltage modulation motor controller |
Feb. 12, 2002 |
| 6331760 |
Capacitive induction motor and method |
Dec. 18, 2001 |
| 6329785 |
Pulse width modulated controlled induction motor |
Dec. 11, 2001 |
| 6242883 |
Variable speed three-phase motor drive with two inverter circuits |
Jun. 5, 2001 |
| 6219623 |
Anti-islanding method and apparatus for distributed power generation |
Apr. 17, 2001 |
| 6208111 |
Motor starter arrangement with soft start electronic control |
Mar. 27, 2001 |
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