Schmitt trigger input buffer circuit

Details Schmitt trigger input buffer circuit Schmitt trigger input buffer circuit

1992-10-27

1994-07-05

Callahan, Timothy P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307360, 307445, 3072721, H03K 3295

Patent

active

053270207

ABSTRACT:
A Schmitt trigger input buffer circuit includes two inverting gates with different threshold voltages, which receive an input signal, a dual-input-AND pair and dual-input-NOR composite gate, and another inverting gate. Two of the inputs of the composite gate receive the outputs from the two inverting gates. The output signal of the composite gate and its inverted version are fed back respectively to the remaining two inputs of the composite gate.

REFERENCES:
patent: 4044312 (1977-08-01), D'Ortenzio
patent: 4498021 (1985-02-01), Uya
patent: 4703202 (1987-10-01), Enomoto et al.
patent: 4786824 (1988-11-01), Masuda
patent: 5097147 (1992-03-01), Stuebing et al.

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