Method and circuit arrangement for commutation of a multiple win

Details Method and circuit arrangement for commutation of a multiple win Method and circuit arrangement for commutation of a multiple win

1998-12-10

2000-03-28

Sircus, Brian

Electricity: motive power systems

Switched reluctance motor commutation control

318138, 318439, H02P 118

Patent

active

060436190

ABSTRACT:
Method and circuit arrangement for commutation of a multiple winding electric motor. Particularly when they are operated with square-wave signals, multiple winding electric motors require effective interference voltage suppression for many applications. The invention specifies a method and a circuit arrangement by means of which trapezoidal waveform control signals are produced upstream of the respective output amplifiers, so that the motor is driven with low impedance, as a result of which there is no need for additional suppression means. The trapezoidal waveform control signals are composed of an operating voltage or a corresponding signal, a reference potential and a triangular waveform ramp voltage, using switching means.

REFERENCES:
patent: 4356437 (1982-10-01), Saito et al.
patent: 5182499 (1993-01-01), Inaji et al.
patent: 5220258 (1993-06-01), Hans et al.
patent: 5319290 (1994-06-01), Yoshino et al.
patent: 5382886 (1995-01-01), Mizuide

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