Current level detector

Details Current level detector Current level detector

1975-09-05

1976-09-07

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307296, H03K 520

Patent

active

039796060

ABSTRACT:
At least two current mirrors, both responsive to the same input current, the output transistor of the first serving as a current sink for the output current supplied by the second. At least the first mirror is a two-ratio mirror, its output current demand increasing at a rate within the output current supply capacity of the second in a first input current range and increasing at a rate faster than the rate of increase of the output current of the second mirror in a second input current range. A signal detector coupled to the output circuits of both mirrors indicates when the input signal current reaches a given level by detecting when current demanded by said sink exceeds the output current of the second mirror.

REFERENCES:
patent: 3648069 (1972-03-01), Frederiksen
patent: 3760194 (1973-09-01), Lutz et al.
patent: 3868517 (1975-02-01), Schoeff
patent: 3872323 (1975-03-01), Frederiksen et al.

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