Control apparatus for brushless motor

Electricity: motive power systems – Switched reluctance motor commutation control

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

318138, 318439, H02P 602

Patent

active

046410660

ABSTRACT:
A control apparatus detects a suitable starting point during rotational oscillation of a rotor at the start of a brushless motor by combining the polarity of a counter electromotive force generated in an armature coil of an armature winding of the brushless motor for a nonexcited phase due to the rotational oscillation of the rotor (when armature coils for particular phases are excited at the start of the brushless motor) with the pulse edge of an excitation switchover signal obtained from the potential of a neutral point of the armature winding having the armature coils connected in star-connection and that of a neutral point of a detecting resistance circuit having resistors connected in star-connection. Each of the resistors of the resistance circuit is arranged in parallel with a corresponding one of the armature coils the armature winding. By driving the brushless motor from the detected suitable starting point, it is possible to effect smooth and quick control of the starting operation of the brushless motor.

REFERENCES:
patent: 3264539 (1966-08-01), Sander
patent: 3439243 (1969-04-01), Roth

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Control apparatus for brushless motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control apparatus for brushless motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control apparatus for brushless motor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1092709

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.