Under-Temperature Switch


Posted on Nov 7, 2012

The reference current is fed from the supply voltage via Rl, to the inverting terminal, and the variable (noninver


Under-Temperature Switch
Click here to download the full size of the above Circuit.

ting) current is supplied from the junction of R3 and R4. Because the value of Ri is approximately double that of R2, and generates a current that is proportional to the supply voltage, the trip temperature (preset via R3) is independent of the supply voltage.




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