Apparatus and method for controlling a DC brush-less motor based

Details Apparatus and method for controlling a DC brush-less motor based Apparatus and method for controlling a DC brush-less motor based

1998-08-06

2000-05-16

Salata, Jonathan

Electricity: motive power systems

Switched reluctance motor commutation control

318439, H02P 506

Patent

active

060641630

ABSTRACT:
An apparatus for controlling a DC brush-less motor includes a switching circuit which switches a DC voltage to convert the DC voltage into first pulses and a controller which controls the switching circuit. The controller has a voltage detector which detects a voltage of second pulses induced in the windings, a duty ratio control which controls a duty ratio of the first pulse depending upon the induced voltage detected by the voltage detector, and a carrier cycle control which controls a cycle of the first pulse depending upon the duty ratio or a width of the second pulse.

REFERENCES:
patent: 4520296 (1985-05-01), Lepper et al.
patent: 4743815 (1988-05-01), Gee et al.
patent: 4912378 (1990-03-01), Vukosavic
patent: 4928043 (1990-05-01), Plunkett
patent: 4970445 (1990-11-01), Kimura et al.
patent: 5339013 (1994-08-01), Nakai et al.

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