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Class Information
Number: 318/138
Name: Electricity: motive power systems > Space-discharge-device commutated motor
Description: Subject matter in which space discharge devices are connected in the armature or primary circuit of the motor and are connected so as to effect the commutation of the motor.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 7279864 |
Control unit for driving a regulating transistor of a fan arrangement |
Oct. 9, 2007 |
| 7279863 |
Method and apparatus for detecting excitation position of SRM by comparison of detected current |
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 |
| 7271556 |
Method and apparatus for estimating rotor position of switched reluctance motor, and method and apparatus for sensorless control of switched reluctance motor |
Sep. 18, 2007 |
| 7268513 |
Motor/generator unit |
Sep. 11, 2007 |
| 7268509 |
Electric driven tool device |
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 |
| 7256561 |
Method for operating a rotating electrical machine |
Aug. 14, 2007 |
| 7256560 |
Circuit arrangement for supplying a control electronics system in electric machines |
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 |
| 7248006 |
Electronically controlled electric motor |
Jul. 24, 2007 |
| 7245097 |
Motor control system and vacuum pump equipped with the motor control system |
Jul. 17, 2007 |
| 7245096 |
Method and apparatus for controlling the speed of a DC motor |
Jul. 17, 2007 |
| 7242857 |
Motor control circuit |
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 |
| 7235938 |
Motor drive and magnetic disc apparatus |
Jun. 26, 2007 |
| 7233123 |
Electrical machine rotor position identification |
Jun. 19, 2007 |
| 7230398 |
Brushless motor control apparatus and brushless motor control method |
Jun. 12, 2007 |
| 7227320 |
Disc drive apparatus and motor driver circuit |
Jun. 5, 2007 |
| 7224134 |
Device for controlling inductive load |
May. 29, 2007 |
| 7215091 |
Method for controlling a DC printer motor with a motor driver |
May. 8, 2007 |
| 7211981 |
Electric motor movement controlling method, an electric motor movement controlling system and a compressor |
May. 1, 2007 |
| 7211973 |
System and process for utilizing back electromotive force in disk drives |
May. 1, 2007 |
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