Logic driver circuit with output protection

Details Logic driver circuit with output protection Logic driver circuit with output protection

1975-02-03

1976-09-07

Miller, J D

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

317 33R, 330207P, H02H 720

Patent

active

039796434

ABSTRACT:
A resistor senses low-level drive current is a logic circuit. When the output is shorted, excessive drive current turns on a sensor transistor, which causes drive voltage to the output stage to be clamped to ground, and to remain clamped until the fault is removed.

REFERENCES:
patent: 3109980 (1963-11-01), Wiley
patent: 3447035 (1969-05-01), Boykin
patent: 3509423 (1970-04-01), Czerny
patent: 3585514 (1971-06-01), Kubicz
patent: 3714512 (1973-01-01), Grabowski
patent: 3753079 (1973-08-01), Trilling
patent: 3786364 (1974-01-01), Wheatley, Jr.

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