Date post: | 15-Nov-2014 |
Category: |
Documents |
Upload: | vishal-barvaliya |
View: | 13,466 times |
Download: | 19 times |
AASeminar on Seminar on
Brushless DC MotorsBrushless DC Motors
Basic StructureBasic Structure
Principle of brushless DC motorPrinciple of brushless DC motor
Comparison of conventional and Comparison of conventional and brushless dc motorsbrushless dc motors
Drive circuitsDrive circuits
Unipolar driveUnipolar drive
Bipolar driveBipolar drive
Unipolar driveUnipolar drive
Bipolar driveBipolar drive
ApplicationsApplicationsLaser printer
Hard disk drive
Comparison of an ac synchronous motor and a brushless dc motor for an 8-inch hard disk drive
Efficiency Comparison brush DC to Brushless DC
ADVANTAGESADVANTAGES
It is more efficient.It is more efficient. Need less maintenance.Need less maintenance. It can operate higher speeds than conventional dc It can operate higher speeds than conventional dc
motor.motor. High efficiency & small size are especially High efficiency & small size are especially
important for military, aircraft, & automotive important for military, aircraft, & automotive application.application.
Speed accuracy is very high.Speed accuracy is very high. Speed control over a very wide speed range.Speed control over a very wide speed range.