Non-saturating tri-state driver circuit

Details Non-saturating tri-state driver circuit Non-saturating tri-state driver circuit

1985-01-09

1987-03-10

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307443, 307454, 307455, 307300, H03K 19013

Patent

active

046492984

ABSTRACT:
A single chip, bipolar logic circuit receives input signals in a differential amplifier or comparator stage coupled, without saturation, by differential current mirrors to drive an output stage of the push-pull variety. Various circuit arrangement are included to keep other bipolar transistors out of their saturation operating regions, and master transistors of the current mirror are provided with trickle bias when in the operating state to hold them at turn-on threshold for fast response to changes in state of the digital signals.

REFERENCES:
patent: Re29982 (1979-05-01), Aoki
patent: 3792292 (1974-02-01), Priel
patent: 4110641 (1978-08-01), Payne
patent: 4363978 (1982-12-01), Heimbigner
patent: 4376900 (1983-03-01), Metzger
patent: 4380080 (1983-04-01), Rattlingourd
patent: 4418290 (1983-11-01), Nagano
patent: 4471237 (1984-09-01), Kaplan
patent: 4504745 (1985-03-01), Spence et al.
patent: 4567384 (1986-01-01), Stuhlmiller

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