NEGATIVE VOLTAGE DETECTOR

A negative voltage detector includes a first n-channel transistor having a coupled gate node and drain node, a second n-channel transistor having a gate coupled to the gate of the first n-channel transistor, a first current source coupled to a drain of the first n-channel transistor, a second curren...

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Bibliographic Details
Main Authors YEH CHUN LIANG, HUANG CHAO HSING, HSU CHIH CHI
Format Patent
LanguageEnglish
Published 10.04.2008
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
PULSE TECHNIQUE
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Summary:A negative voltage detector includes a first n-channel transistor having a coupled gate node and drain node, a second n-channel transistor having a gate coupled to the gate of the first n-channel transistor, a first current source coupled to a drain of the first n-channel transistor, a second current source coupled to a drain of the second n-channel transistor, an output terminal coupled to the drain of the second n-channel transistor, and an input terminal coupled to a source of the first n-channel transistor. The gate voltage of the first n-channel transistor, i.e., the gate voltage of the second n-channel transistor, depends on its source voltage (the voltage of the input terminal), and the switching operation of the second n-channel transistor can be performed by controlling the voltage of the input terminal to change the output voltage of the output terminal.
Bibliography:Application Number: US20060557600