Compact, high efficiency electronic motor controller with isolat

Details Compact, high efficiency electronic motor controller with isolat Compact, high efficiency electronic motor controller with isolat

1995-06-07

1997-04-29

Cabeca, John W.

Electricity: motive power systems

Switched reluctance motor commutation control

318599, 388804, 363 41, H02P 700

Patent

active

056252650

ABSTRACT:
A motor controller operable at a PWM (pulse width modulated) repetition rate above 6,000 Hz. A special saturable transformer with an interwinding capacitance of less than 5 picofarads is used to isolate the electronic control circuits from the power stage. PWM pulses are supplied to the saturable transformer such that the leading and trailing edges of the pulses pass through to a Schmitt trigger circuit which reconstructs the original pulse.

REFERENCES:
patent: 3577057 (1971-05-01), Dyer
patent: 3636422 (1972-01-01), Miller et al.
patent: 4447771 (1984-05-01), Langley et al.
patent: 4490661 (1984-12-01), Brown et al.
patent: 4686437 (1987-08-01), Whited
patent: 4866556 (1989-09-01), Hebenstreit

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