Power-on reset circuit

Details Power-on reset circuit Power-on reset circuit

2011-01-25

2011-01-25

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S142000

Reexamination Certificate

active

07876135

ABSTRACT:
A power-on reset circuit produces a reset signal output configured by an upper trip-point in an input hysteresis characteristic of the circuit. The upper trip-point is configured by resistances of a first pair of resistors coupled in series at an internal voltage reference node. A temperature coefficient of the upper trip-point is configured by resistance values of a second pair of resistors where each resistor is coupled with a corresponding switching device with an associated switching threshold. A magnitude of the input hysteresis characteristic is configured by resistances of a third pair of resistors in series. The magnitude of hysteresis is configured independent of configuring either the level or the temperature coefficient of the upper trip-point.

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