Power on reset circuit for microprocessor

Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons

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Details

307200B, 307601, 307603, 307605, H03K 5153

Patent

active

045530548

ABSTRACT:
A circuit for generating a pulse when a voltage (VDD) is applied thereto comprising an input (10) for receiving the applied voltage, an output (36), a first capacitor (16) connected to be charged from the input through a first switch (12), a second capacitor (18) connected to be charged from the first capacitor through a second switch (14), control means (34) for alternately enabling the first and second switches and switch means (20, 22, 24, 26) connected to the second capacitor for applying the applied voltage to the output when the voltage on the second capacitor is less than a predetermined value and for applying ground voltage to the output when the voltage on the second capacitor is greater than the predetermined value.

REFERENCES:
patent: 4365174 (1982-12-01), Kucharewski

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