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Mains overvoltage protection circuit
Source: InternetPublisher:Lemontree Keywords: Protection circuit overvoltage protection grid voltage Updated: 2021/08/10
When the grid voltage exceeds the upper limit setting value (set by potentiometer RPi), the circuit will quickly
cut off the power supply; when the grid voltage is lower than the lower limit setting value (set by RPz), the circuit will automatically restore power supply.
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