Power-on detector and method thereof

Details Power-on detector and method thereof Power-on detector and method thereof

2011-01-11

2011-01-11

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S050000, C327S142000, C327S198000

Reexamination Certificate

active

07868668

ABSTRACT:
A power-on detector and a method thereof are provided. The power-on detector includes four transistors, two resistors, and a comparator. The power-on detector can detect an input voltage and then determine whether the power is turned on or not. The power-on determination is substantially immune to temperature variation. The power-on detector is noise-free and stable in various temperatures.

REFERENCES:
patent: 6137324 (2000-10-01), Chung
patent: 6894543 (2005-05-01), Ho et al.
patent: 7046055 (2006-05-01), Lee et al.

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