Supply-discriminating supply-adaptive electronic system

Details Supply-discriminating supply-adaptive electronic system Supply-discriminating supply-adaptive electronic system

1994-04-11

1996-05-07

Sterrett, Jeffrey L.

Electricity: power supply or regulation systems

Starting circuits

323281, G05F 140

Patent

active

055149510

ABSTRACT:
A novel supply discriminator circuit is disclosed for detecting the level of a supply voltage during power-up of a system for configuring an integrated analog circuit such as a PCMCIA card. The circuit compares a reference voltage with a divided down supply voltage and latches the result a predetermined delay later. The delay thus provides timing for the supply voltage to stabilize after power-up to assure accurate detection, as well as noise immunity from other devices.

REFERENCES:
patent: 4806842 (1989-02-01), Bittner
patent: 5073850 (1991-12-01), Pace
patent: 5359281 (1994-10-01), Barrow et al.

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