Electric leakage detection circuit in purification voltage stabilizer

The utility model provides an electric leakage detection circuit in a purification voltage stabilizer. The electric leakage detection circuit performs electric leakage detection on all equipment powered by the purification voltage stabilizer. Wherein a live wire and a zero wire of input mains supply penetrate through a magnetic ring of the mutual inductor together, the filtering and sampling circuit is used for filtering and sampling electric signals output by the mutual inductor, and the model of the leakage protection IC is VG54123A. Two output ends of the mutual inductor are respectively connected with two input ends of the filter; two output ends of the filter are respectively connected with an IN1 pin and an IN2 pin of the leakage protection IC, and a VSS pin of the leakage protectionIC is grounded. An NC pin and an OA pin are grounded through a capacitor C37, a DLY pin is grounded through a capacitor C52, and an OS pin outputs a signal indicating whether electric leakage occursor not after passing throu