Reset signal generator

Details Reset signal generator Reset signal generator

1981-01-06

1983-01-04

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307350, 307354, 340663, H03K 1722, G01R 19165, G01R 19175

Patent

active

043674232

ABSTRACT:
A reset generator circuit including a power monitor subcircuit which provides first and second logic level signals which specify the power supply as being above or below a preselected threshold level. A logic circuit comprising a series of interconnected NAND gates responds to the output signals generated by the power monitor subcircuit and to a signal from a capacitor charge monitor circuit. The capacitor charge monitor circuit develops logic signals which reflect the magnitude of the voltage across a capacitor which is part of a timing circuit. The control signal output from the logic circuit drives one input to a reset control gate and also controls the charge on the capacitor. The other input to the reset gate is also driven by the charge monitor circuit. The reset gate operates a switching element which provides the proper reset signal adapted for coupling to a microprocessor.

REFERENCES:
patent: 4232236 (1980-11-01), Yomogida et al.
patent: 4300065 (1981-11-01), Remedi et al.

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