Circuit for the detection of voltage thresholds

Details Circuit for the detection of voltage thresholds Circuit for the detection of voltage thresholds

1993-04-28

1997-02-11

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327530, 327576, 327 78, 327 79, 327 50, 327 81, 327 63, 327 55, 327143, H03K 112

Patent

active

056025009

ABSTRACT:
A circuit to detect the crossing of at least one voltage threshold by an input voltage of an integrated circuit has two arms mounted in negative feedback configuration, each comprising a forward biased diode in series with a current generator. The current generator of an arm is controlled in voltage by the other arm. An inverter calibrated to detect a crossing of a given threshold is connected at input to the connection point between the diode and the generator of one of the arms.

REFERENCES:
patent: 3508081 (1970-04-01), Matsuda
patent: 3681623 (1972-08-01), Hoffman, Jr. et al.
patent: 3733498 (1973-05-01), Watson et al.
patent: 4558232 (1985-12-01), Simpson
patent: 4857769 (1989-08-01), Kotera et al.
patent: 4983857 (1991-01-01), Steele
patent: 5140183 (1992-08-01), Takenaka

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