Self-commutating, back-EMF sensing, brushless DC motor controlle

Details Self-commutating, back-EMF sensing, brushless DC motor controlle Self-commutating, back-EMF sensing, brushless DC motor controlle

1989-09-25

1993-04-13

Roskoski, Bernard

Electricity: motive power systems

Switched reluctance motor commutation control

318138, H02K 2902, H02P 728

Patent

active

052026140

ABSTRACT:
A method and apparatus to commutate the drive voltages of a brushless DC motor. The present invention determines rotor position and velocity by detecting the polarity reversal of the Back-EMF of an undriven leg when compared to a transformed pseudo-reference. In an extra measure of efficiency, the present invention is independent of hardware sensors; it includes a commutation delay timing circuit for optimization of motor operation, and it minimizes the participation of a microprocessor or other microcontroller.

REFERENCES:
patent: 4532459 (1985-07-01), Erdman et al.
patent: 4651069 (1987-03-01), Pellegrini
patent: 4654566 (1987-03-01), Erdman
patent: 4743815 (1988-05-01), Gee et al.
patent: 4857814 (1989-08-01), Duncan

Affiliated with

Also associated with

Rating

Self-commutating, back-EMF sensing, brushless DC motor controlle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-commutating, back-EMF sensing, brushless DC motor controlle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-commutating, back-EMF sensing, brushless DC motor controlle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1157632