| |
 |
|
Class Information
Number: 318/439
Name: Electricity: motive power systems > Motor commutation control systems
Description: Subject matter in which means are provided for facilitating or otherwise controlling commutation in commutator motors.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7288911 |
System and method for commutating a motor |
Oct. 30, 2007 |
| 7288910 |
Sensorless control in a permanent magnet machine |
Oct. 30, 2007 |
| 7288905 |
Integrated circuit and method for trainable control and operation of DC motor |
Oct. 30, 2007 |
| 7285931 |
Brushless motor commutation and control |
Oct. 23, 2007 |
| 7285930 |
Method and device for controlling a multiphase electronically commutated motor |
Oct. 23, 2007 |
| 7285929 |
Brushless motor commutation and control |
Oct. 23, 2007 |
| 7282888 |
AC fan motor driving circuit having detecting current wave capability |
Oct. 16, 2007 |
| 7282878 |
Systems for brushless DC electrical drive control |
Oct. 16, 2007 |
| 7282877 |
DC brush motor rotation amount detection method and apparatus |
Oct. 16, 2007 |
| 7282876 |
System for driving brushless DC motor and method of driving same |
Oct. 16, 2007 |
| 7279863 |
Method and apparatus for detecting excitation position of SRM by comparison of detected current |
Oct. 9, 2007 |
| 7279860 |
System and method for evaluating back electromotive force in a motor |
Oct. 9, 2007 |
| 7279859 |
EC motor and method for operating same |
Oct. 9, 2007 |
| 7279857 |
System, method, and computer-readable medium for reduction of commutation-related acoustic noise in a fan system |
Oct. 9, 2007 |
| 7276867 |
Controller arrangement with adaptive non-overlapping commutation |
Oct. 2, 2007 |
| 7274162 |
Motor spindle control system and method |
Sep. 25, 2007 |
| 7272303 |
Method and control circuit for driving an electric motor of a seatbelt retractor |
Sep. 18, 2007 |
| 7271559 |
Method and switching apparatus for recording the current in an electrical device |
Sep. 18, 2007 |
| 7271557 |
AC motor driving apparatus and method of controlling the same |
Sep. 18, 2007 |
| 7268509 |
Electric driven tool device |
Sep. 11, 2007 |
| 7268505 |
Electric machine and method of operating the electric machine |
Sep. 11, 2007 |
| 7268502 |
Method and arrangement for controlling the synchronous running of a plurality of electronically commutated motors |
Sep. 11, 2007 |
| 7265505 |
Control apparatus for selectively driving plural stator windings of synchronous motor |
Sep. 4, 2007 |
| 7262578 |
Direct control of an induction motor |
Aug. 28, 2007 |
| 7262576 |
Method for driving a synchronous electric motor in particular for fans |
Aug. 28, 2007 |
| 7262570 |
Motor controller with enhanced noise immunity unbuffered hall sensors |
Aug. 28, 2007 |
| 7262569 |
Electronic rotor pointing with high angular resolution |
Aug. 28, 2007 |
| 7260319 |
Abnormality monitoring device for motor control system |
Aug. 21, 2007 |
| 7259531 |
Speed control of brushless DC motors |
Aug. 21, 2007 |
| 7256564 |
System and method for attenuating noise associated with a back electromotive force signal in a motor |
Aug. 14, 2007 |
| 7256561 |
Method for operating a rotating electrical machine |
Aug. 14, 2007 |
| 7256558 |
Brushless motor and disk drive device using the same |
Aug. 14, 2007 |
| 7253581 |
Data storage device, motor control device, and motor control method |
Aug. 7, 2007 |
| 7253574 |
Effective switching frequency multiplier inverter |
Aug. 7, 2007 |
| 7250794 |
Voltage source converter |
Jul. 31, 2007 |
| 7250735 |
Driving circuit of a fan |
Jul. 31, 2007 |
| 7250733 |
Circuit arrangement and method for controlling a brushless, permanently excited direct current motor |
Jul. 31, 2007 |
| 7248006 |
Electronically controlled electric motor |
Jul. 24, 2007 |
| 7245097 |
Motor control system and vacuum pump equipped with the motor control system |
Jul. 17, 2007 |
| 7242175 |
Determining rotation of a freewheeling motor |
Jul. 10, 2007 |
| 7242160 |
Starting method for Hall-less single-phase BLDCM |
Jul. 10, 2007 |
| 7239102 |
Phase adjustment circuit, motor driving control circuit, and motor apparatus |
Jul. 3, 2007 |
| 7239098 |
Digital adaptive sensorless commutational drive controller for a brushless DC motor |
Jul. 3, 2007 |
| 7235946 |
Actuator current control method |
Jun. 26, 2007 |
| 7235941 |
Phase commutation method of brushless direct current motor |
Jun. 26, 2007 |
| 7235938 |
Motor drive and magnetic disc apparatus |
Jun. 26, 2007 |
| 7233123 |
Electrical machine rotor position identification |
Jun. 19, 2007 |
| 7233121 |
Fan speed control circuit |
Jun. 19, 2007 |
| 7231139 |
Digital noise reduction for motors |
Jun. 12, 2007 |
| 7230400 |
Electronically commutated motor |
Jun. 12, 2007 |
|
|
|
