Waveform shaping circuit

Details Waveform shaping circuit Waveform shaping circuit

1981-10-27

1984-01-24

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307261, 307356, 328 34, 328 58, H03K 3017, H03K 302

Patent

active

044279019

ABSTRACT:
A waveform shaping circuit which includes a voltage comparator having one input which is supplied with a reference voltage whose amplitude is determined by two voltage dividing resistors which are serially interconnected across a source voltage and having its other input supplied with a voltage across a capacitor which is charged with the source voltage in the absence of a square input pulse and which is discharged in the presence of the input pulse. In order to vary the reference voltage in the presence of the input pulse, a resistor and an NPN common emitter transistor are connected across that voltage dividing resistor which is directly connected to ground and the input pulse is supplied to the base electrode of the transistor.

REFERENCES:
patent: 4276860 (1981-07-01), Capurka
patent: 4359649 (1982-11-01), Mundel
Harvely Scherr "Output Comparator Enhances Versatility of One-Shot" Electronics, May 22, 1972, p. 98.

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