Simple Over-voltage Protection Circuit Diagram. This circuit is a safety circuit This is a very simple Simple Over-voltage Protection Circuit Diagram. When testing a circuit, a source of voltage that is variable and has over-voltage shutdown is very 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. To reset, reduce Rl below trip threshold and depress reset switch SI.
Simple Over-voltage Protection Circuit Diagram
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