Efficient base drive circuit for high current transistors

Details Efficient base drive circuit for high current transistors Efficient base drive circuit for high current transistors

1978-08-08

1980-09-23

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307255, 307254, H03K 1760

Patent

active

042245354

ABSTRACT:
A high current switching transistor controlling a load in its collector circuit receives from a drive circuit sufficient base current necessary to render the transistor conductive. A low loss inductor and switching means are connected to the base of the transistor such that when switching means are rendered nonconductive, current from the inductor flows into the base of the transistor to render it conductive, thus energizing the load.
Regulating means coupled between a source of relatively high DC potential and the inductor together with unidirectional feedback path means provide a continuous current into the inductor such that when regulating means are substantially nonconductive, current is diverted away from the base of the high current transistor and circulates through the unidirectional feedback path and low loss inductor.

REFERENCES:
patent: 3206651 (1965-09-01), Proulx
patent: 3244910 (1966-04-01), Leifer
patent: 3293495 (1966-12-01), Smith
patent: 3573502 (1971-04-01), Kan

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