Overload protection circuit for output driver

Details Overload protection circuit for output driver Overload protection circuit for output driver

1979-10-15

1982-05-11

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307549, 307571, 307270, H03K 500

Patent

active

043296009

ABSTRACT:
A protection circuit for preventing excessive power dissipation in an output transistor whose conduction path is connected between a power terminal and an output terminal. The protection circuit includes means for sensing the application of a turn on signal to the output transistor and the voltage at the output terminal. When the turn on signal is maintained for a period of time greater than a given period without the voltage at the output terminal reaching a predetermined value, the protection circuit decreases the turn on signal to, and the current conduction through, the output transistor.

REFERENCES:
patent: 3493878 (1970-02-01), Fautale
patent: 3641361 (1972-02-01), Limberg
patent: 3641368 (1972-02-01), Gamble et al.
patent: 3979607 (1976-09-01), Beelitz
patent: 4037114 (1977-07-01), Stewart et al.
patent: 4061983 (1977-12-01), Suzuki
patent: 4194134 (1980-03-01), Bjorklund et al.
patent: 4232273 (1980-11-01), Leidich

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