Multi-phase brushless motor with increased starting torque and r

Details Multi-phase brushless motor with increased starting torque and r Multi-phase brushless motor with increased starting torque and r

1988-05-19

1990-03-27

Ro, Bentsu

Electricity: motive power systems

Switched reluctance motor commutation control

318138, H02P 602

Patent

active

049123793

ABSTRACT:
A multi-phase brushless motor including a stator having a plurality of drive coils each corresponding to a specific phase and a rotor having a plurality of field magnet poles of successively alternating polarity. The stator further has a plurality of Hall generators for detecting the positions of the rotor and a speed sensor for detecting the rotational speed of the rotor. The brushless motor is driven by a drive circuit which supplies drive currents to the drive coils of the stator so as to generate torques. The drive circuit is operated under control of a control circuit which comprises a first processing circuit responsive to position signals from the Hall generators to output exciting signals to the drive circuit so that the drive circuit supplies the drive currents to the drive coils thereof and a second processing circuit responsive to the speed signal from the speed sensor and the position signal to output exciting signals to the drive circuit which in turn supplies the drive currents thereto. The first and second processing circuits are selectively operated such that the first processing circuit outputs the exciting signals to the drive circuit at startup of the motor and the second processing circuit outputs the exciting signals thereto after the startup.

REFERENCES:
patent: 3909690 (1975-09-01), Sugiura
patent: 3916272 (1975-10-01), Grunleitner et al.
patent: 4097788 (1978-06-01), Nygaard et al.
patent: 4454458 (1984-06-01), Holland
patent: 4455513 (1984-06-01), Fulton et al.
patent: 4631459 (1986-12-01), Fujioka et al.
patent: 4641066 (1987-02-01), Nagata et al.
patent: 4763347 (1988-08-01), Erdman

Affiliated with

Also associated with

Rating

Multi-phase brushless motor with increased starting torque and r does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-phase brushless motor with increased starting torque and r, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-phase brushless motor with increased starting torque and r will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1653227