Logic interface circuit with high stability and low rest current

Details Logic interface circuit with high stability and low rest current Logic interface circuit with high stability and low rest current

1987-09-30

1989-03-07

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307443, 307448, 307475, 323317, H03K 1902, H03K 1716, H03K 19017, G05F 316

Patent

active

048109029

ABSTRACT:
An improved logic interface circuit having both a low current drain under rest conditions and a great stability in respect of temperature variations, is based on an original and effective implementation of the so-called bandgap-type voltage reference circuit, according to which the intrinsic gain of the bandgap system is not utilized, as normally happens in such voltage reference circuits for providing a negative feedback capable of compensating the temperature coefficient of the V.sub.be, but for obtaining, under open loop conditions, a transition of the output of the circuit when the input of the circuit crosses a certain threshold voltage.

REFERENCES:
patent: 4656374 (1987-04-01), Rapp

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