Apparatus for controlling the operation of power transistors in

Details Apparatus for controlling the operation of power transistors in Apparatus for controlling the operation of power transistors in

1978-03-07

1980-07-29

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307255, 307270, 307300, H03K 1700

Patent

active

042152798

ABSTRACT:
Apparatus for automatically controlling the base current of a power transistor operating in a switching mode. Logic circuit means detect the collector-emitter voltage of the power transistor reaching a critical threshold at turn-on, and impedance feedback circuit means control the minimum conducting and blocking times of the power transistor. Circuit means are also provided to control the switching state of the power transistor and to produce a signal indicative of said switching state, thereby permitting plural power transistors to operate in a parallel arrangement.

REFERENCES:
patent: 3538353 (1970-11-01), Hanger
patent: 4006370 (1977-02-01), Erler

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