Power-up detection circuit

Details Power-up detection circuit Power-up detection circuit

1995-12-18

1997-03-11

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327142, H03L 700

Patent

active

056105428

ABSTRACT:
A power-up detection circuit which generates a power-up detection pulse by comparing the directly applied power supply voltage and the delayed power supply voltage so that the application of power supply voltage thereto is exactly detected even though the power supply voltage has a varying rise time. The circuit is disabled when the delayed power supply voltage rises to the full power supply voltage level after a predetermined delay time.

REFERENCES:
patent: 4717840 (1988-01-01), Ouyang et al.
patent: 4888498 (1989-12-01), Kadakia
patent: 5376835 (1994-12-01), Van Buskirk et al.
patent: 5508649 (1996-04-01), Shay
patent: 5519347 (1996-05-01), Kim

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