Method and an apparatus to detect low voltage

Details Method and an apparatus to detect low voltage Method and an apparatus to detect low voltage

2006-10-17

2006-10-17

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C320S124000, C320S127000

Reexamination Certificate

active

07123033

ABSTRACT:
A method and an apparatus to detect low voltage have been disclosed. One embodiment of the apparatus includes a main circuit powered at a supply voltage, wherein the supply voltage changes over time and a test circuit coupled to the main circuit, the test circuit being representative of a voltage sensitivity of the main circuit to dynamically determine if the supply voltage is above a minimum voltage at which the main circuit operates correctly, wherein the minimum voltage changes over at least one of a temperature and a time and between different instances of the main circuit.

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