CMOS Schmitt trigger with independently biased high/low threshol

Details CMOS Schmitt trigger with independently biased high/low threshol CMOS Schmitt trigger with independently biased high/low threshol

1987-07-17

1989-08-22

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307279, 307359, 307360, 307363, H03K 329, H03K 5153

Patent

active

048598739

ABSTRACT:
A Schmitt trigger circuit with independently biased threshold sections includes a drive disabling switch for blocking one of the threshold sections from driving a logic node toward a predetermined logic state. The drive disabling switch is selectively operated so that unidirectional sensitivity to the crossing of a threshold level belonging to its corresponding one threshold section is obtained.

REFERENCES:
patent: 4394587 (1983-07-01), McKenzie et al.
patent: 4438349 (1984-03-01), Shoji
patent: 4490627 (1984-12-01), Moench et al.
patent: 4503340 (1985-03-01), Linder

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