Brushless motor control system

Details Brushless motor control system Brushless motor control system

H - Electricity

02

P

H02P 6/06 (2006.01) H02H 7/085 (2006.01) H02P 6/02 (1990.01)

Patent

CA 2093242

An all-digital control system far a brushless, three-phase, DC motor includes a main signal processor in direct digital communication with a drive controller. The controller generates a pulse width modulated signal having a duty cycle established by the command signal. A three-phase bridge generates a two-state control signal in response to the pulse width modulated signal. The control signal has an on-state which lasts for the duty cycle. A digital tachometer signal indicative of motor speed or position is thereupon processed and reported back to the main processor.

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