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Class Information
Number: 318/727
Name: Electricity: motive power systems > Induction motor systems
Description: Subject matter wherein the system of supply and/or control is for an induction motor.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7423405 |
Electromagnetic rotating machine |
Sep. 9, 2008 |
| 7411363 |
Conservation of electrical energy and electro-magnetic power in motor, generator, and product components |
Aug. 12, 2008 |
| 7407137 |
Dual voltage integrated power and attitude control system and method |
Aug. 5, 2008 |
| 7408322 |
Device for determining constant of rotating machine |
Aug. 5, 2008 |
| 7402975 |
Motor drive device and drive method |
Jul. 22, 2008 |
| 7385371 |
Vector controller for induction motor |
Jun. 10, 2008 |
| 7378816 |
System and method for confirming a detection of low voltage and shorted SCRs |
May. 27, 2008 |
| 7375485 |
Control systems and methods for starting permanent magnet rotating machines |
May. 20, 2008 |
| 7375489 |
Apparatus for generating sine waves of electromotive force, rotary switch using the apparatus, and generators using the rotary switch |
May. 20, 2008 |
| 7375934 |
Power converter controlling apparatus and method applying a fault protection scheme in a motor drive system |
May. 20, 2008 |
| 7368890 |
Power converter with active discharging for improved auto-restart capability |
May. 6, 2008 |
| RE40250 |
Pulse width modulation circuit controlling output current of an inverter circuit for motor-driven blower or electric vacuum cleaner |
Apr. 22, 2008 |
| 7358694 |
Apparatus and method for determining normal start up of sensorless motor |
Apr. 15, 2008 |
| 7358699 |
Rotating electric machine with built-in control device |
Apr. 15, 2008 |
| 7348751 |
Apparatus for deciding position of traction |
Mar. 25, 2008 |
| 7345449 |
Method of rotating a polyphase motor at less than rated speed |
Mar. 18, 2008 |
| 7342366 |
Controller for brushless motor |
Mar. 11, 2008 |
| 7339346 |
Motor and drive control device therefor |
Mar. 4, 2008 |
| 7336051 |
Voltmeter relay with built-in terminal board |
Feb. 26, 2008 |
| 7332888 |
Driving apparatus for a motor |
Feb. 19, 2008 |
| 7330004 |
Method and apparatus for quiet variable motor speed control |
Feb. 12, 2008 |
| 7330010 |
Method for operating a rotating electrical machine and apparatus for carrying out the method |
Feb. 12, 2008 |
| 7327113 |
Electric starter generator system employing bidirectional buck-boost power converters, and methods therefor |
Feb. 5, 2008 |
| 7308383 |
System and method for providing electrical system monitoring and diagnosis |
Dec. 11, 2007 |
| 7282886 |
Method and system for controlling permanent magnet motor drive systems |
Oct. 16, 2007 |
| 7279855 |
Electric drive device for vehicle and hybrid engine/motor-type four wheel drive device |
Oct. 9, 2007 |
| 7276869 |
Motor controller and motor controlling method |
Oct. 2, 2007 |
| 7262577 |
Method for estimating the sum of stator and rotor resistances |
Aug. 28, 2007 |
| 7262579 |
Inverted electric motor and method for using such to propel a vehicle |
Aug. 28, 2007 |
| 7250739 |
Method for estimating the rotor time constant of an induction machine |
Jul. 31, 2007 |
| 7239061 |
Switching pattern AC induction motor |
Jul. 3, 2007 |
| 7235947 |
Synchronous motor control method and synchronous motor control system |
Jun. 26, 2007 |
| 7230403 |
System and method for elimination of DC offset feedback in AC drives |
Jun. 12, 2007 |
| 7221121 |
Frequency converter for different mains voltages |
May. 22, 2007 |
| 7215092 |
Radio-linked, bi-directional control system for model electric trains |
May. 8, 2007 |
| 7211984 |
Start-up and restart of interior permanent magnet machines |
May. 1, 2007 |
| 7208910 |
Method for modifying baseline circuit architecture for a cycle-skipping control system including computer readable code and controller for performing such method |
Apr. 24, 2007 |
| 7208911 |
Method for controlling a cycle-skipping control system including computer readable code and controller for performing such method |
Apr. 24, 2007 |
| 7208891 |
Variable speed drive for a chiller system |
Apr. 24, 2007 |
| 7202627 |
Load and speed sensitive motor starting circuit and method |
Apr. 10, 2007 |
| 7199548 |
Drive control apparatus and method of alternating current motor |
Apr. 3, 2007 |
| 7196485 |
Universal low-power ceiling fan controller |
Mar. 27, 2007 |
| 7190144 |
System and method for adjusting a PID controller in a limited rotation motor system |
Mar. 13, 2007 |
| 7187155 |
Leakage inductance saturation compensation for a slip control technique of a motor drive |
Mar. 6, 2007 |
| 7180259 |
Driving apparatus for driving multiple induction motors |
Feb. 20, 2007 |
| 7180263 |
Synchronous motor control method and device |
Feb. 20, 2007 |
| 7170248 |
Systems and methods for operating a barrier |
Jan. 30, 2007 |
| 7170245 |
Motor power supply control apparatus |
Jan. 30, 2007 |
| 7164254 |
Modulation methods and apparatus for reducing common mode voltages |
Jan. 16, 2007 |
| 7164251 |
Oscillation adjuster and oscillation adjusting method |
Jan. 16, 2007 |
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