Current feedback Schottky logic

Details Current feedback Schottky logic Current feedback Schottky logic

1983-09-19

1986-05-20

Anagnos, Larry N.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307454, 307458, 307291, 307460, H03K 19084, H03K 1901, H03K 1912, H03K 3286

Patent

active

045903921

ABSTRACT:
A bipolar OR logic circuit includes input diodes directly connected to a switching transistor. A first current source is coupled to the transistor's emitter and a load is directly connected to and between the collector and a voltage reference point. A second current source, connected to the transistor's base, sets the switching point of the transistor. The output is taken at the collector. A second bipolar transistor can be cross coupled to the first transistor to provide a voltage reference for the base of the first transistor and/or shift the logic level by taking the output at the emitter of the second transistor.

REFERENCES:
patent: 2901638 (1959-08-01), Huang
patent: 2950461 (1960-08-01), Tryon
patent: 3283180 (1966-11-01), Pressman
patent: 3795822 (1974-03-01), Skokan
patent: 4400635 (1983-08-01), Mazgy

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