Drive circuit for brushless motor

Details Drive circuit for brushless motor Drive circuit for brushless motor

1992-10-29

1994-02-15

Ro, Bentsu

Electricity: motive power systems

Switched reluctance motor commutation control

H02P 714, H02P 602

Patent

active

052870448

ABSTRACT:
A drive circuit for a brushless motor includes position detectors for detecting a rotational position of a rotor of the brushless motor, thereby generating position detection signals. A plurality of amplifiers have respective transistors at least in its output stage and feed an electric power to stator windings of the brushless motor through the transistors of the output stage in a timing in accordance with the position detection signals from the position detectors respectively. Each amplifier has an amplification degree varied based on a speed control signal. A voltage detector detects an output voltage of each amplifier. A power supply adjusting device controls a power supply voltage applied to each amplifier based on a detection voltage of the voltage detector.

REFERENCES:
patent: 3611081 (1971-10-01), Watson
patent: 3916272 (1975-10-01), Grunleitner et al.
patent: 4359674 (1982-11-01), Gotou
patent: 4472666 (1984-09-01), Akeda et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1210003