Anti-latch circuit for amplifier stage including bipolar and fie

Details Anti-latch circuit for amplifier stage including bipolar and fie Anti-latch circuit for amplifier stage including bipolar and fie

1978-05-15

1979-06-12

Dahl, Lawrence J.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

323 4, 330257, 330277, 330288, 361 91, H03F 345

Patent

active

041581784

ABSTRACT:
A circuit for preventing latch up of a differential-input stage, which includes both bipolar and field-effect transistors, without degrading performance including means for clamping the base electrode of the slave transistor of a current mirror whenever the potential thereacross approaches a level sufficient to forward bias the base collector junction thereof to forestall its reaching such level.

REFERENCES:
patent: 3819952 (1974-06-01), Enomoto et al.
patent: 3852679 (1974-12-01), Schade, Jr.
patent: 3879640 (1975-04-01), Schade, Jr.
patent: 4078199 (1978-03-01), Chapron et al.

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