it is a ppt file based on presentation of brushless dc motor.

1. A Seminar on Brushless DC Motors

3. Basic Structure

5. Principle of brushless DC motor

6. Comparison of conventional and brushless dc motors

8. Unipolar drive

9. Bipolar drive

10. Applications Laser printer

11. Hard disk drive

12. Comparison of an ac synchronous motor and a brushless dc motor for an 8-inch hard disk drive

13. Efficiency Comparison brush DC to Brushless DC

15. THANK YOU