Water heater electric leakage detection circuit

The utility model discloses a water heater electric leakage detection circuit, including live wire and zero line, live wire and zero line pass the primary that an annular magnetic core L201 constitutes output electric leakage signal it has electric capacity C102, resistance R101 and resistance R102 to connect in parallel between live wire and the zero line, electric capacity C102 and resistance R101 and chip U101's an interface connection, resistance R102 and chip U101's the 2nd interface connection, primary is still external to have an electric capacity C101, and electric capacity C101 is connected with electric capacity C104's one end, electric capacity C104's the other end respectively with chip U101's fourth interface and the 5th interface connection, chip U101's third interface ground connection, chip U101's the 6th interface and electric capacity C103's one end are connected, and chip U101's the 7th interface and electric capacity C103's the other end are connected. 本实用新型公开了种热水器漏电检测电路，包括火线和零线，所述火线和零线穿过环