Overvoltage Protection Circuit Circuit


Posted on Mar 21, 2013

When testing a circuit, a source of voltage that is variable and has overvoltage shutdown is veiy useful. In this circuit, Rl is adjusted to 1 to 2 V below the eventual shutdown threshold. R2 sets the trip voltage. When this voltage is reached, the circuit shuts the voltage to the circuit under test down.


Overvoltage Protection Circuit Circuit
Click here to download the full size of the above Circuit.

To reset, reduce Rl belowtrip threshold and depress reset switch SI.




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