Rectangular wave-shaping circuit with varying threshold level

Details Rectangular wave-shaping circuit with varying threshold level Rectangular wave-shaping circuit with varying threshold level

1985-07-08

1987-03-24

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307359, 307360, 328146, H03K 501, H03K 1200, H03K 5153

Patent

active

046527745

ABSTRACT:
A wave-shaping circuit for receiving an electrical signal from a photosensitive device, for example, and delivering a rectangular output does not use an expensive DC amplifier but comprises a comparator, a pair of diodes connected between first and second input terminals of the comparator in an antiparallel relation, and a capacitor placed between the first input terminal of the comparator and the signal input terminal of the circuit for filtering out DC component. A combination of a zener diode and a capacitor is connected to the second terminal of the comparator to establish a threshold level, with which the signal level applied to the first input terminal of the comparator is compared.

REFERENCES:
patent: 3700920 (1972-10-01), Eyler

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