Brushless motor drive circuit including a linear amplifier for s

Details Brushless motor drive circuit including a linear amplifier for s Brushless motor drive circuit including a linear amplifier for s

1994-07-07

1996-10-29

Martin, David S.

Electricity: motive power systems

Switched reluctance motor commutation control

318439, 388910, 3889281, H02P 700

Patent

active

055699880

ABSTRACT:
In a d.c. brushless motor drive circuit, the output amplifier produces a motor winding drive current with dulled rise/fall edges from a detected sinusoidal back e.m.f. voltage induced on the winding during the steady-state operation when the motor runs at the rated speed. The output amplifier includes a set of transistors each brought to a saturated conductive state or a cutoff state in accordance with the phase conduction sequence to connect one end of each motor winding to a ground voltage source, and another transistor operated continuously to connect the neutral point, which is opposite ends of the motor windings connected together, to a power voltage source.

REFERENCES:
patent: 4344023 (1982-10-01), Yokobori et al.
patent: 4353016 (1982-10-01), Burr
patent: 4390826 (1983-06-01), Erdman et al.
patent: 4492903 (1985-01-01), Knight et al.
patent: 4494058 (1985-01-01), Berti
patent: 4678973 (1987-07-01), Elliott et al.
patent: 4743815 (1988-05-01), Gee et al.
patent: 4888798 (1989-12-01), Earnest
patent: 5021997 (1991-06-01), Archie et al.
patent: 5155847 (1992-10-01), Kirouac et al.
patent: 5166886 (1992-11-01), Molnar et al.
patent: 5194286 (1993-03-01), Smith et al.
patent: 5198733 (1993-03-01), Wright
patent: 5241247 (1993-10-01), Salerno et al.
"Sensorless Drive for Brushless D.C. Motor", in Toshiba Review, vol. 45, No. 9, pp. 755-758, published by Toshiba Corp. 1990. & English translation .

Affiliated with

Also associated with

Rating

Brushless motor drive circuit including a linear amplifier for s does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Brushless motor drive circuit including a linear amplifier for s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brushless motor drive circuit including a linear amplifier for s will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1788136