Patent ID: 8154832

Claim:
A leak detecting and leak protecting circuit, comprising: a rectification circuit comprising positive and negative power output ends; current limiting resistors; a diode; a light emitting diode; a silicon controlled rectifier comprising control poles; a switch capable of linking to a resetting button; and a tripping coil comprising a built-in iron core, wherein the rectification circuit outputs DC power, wherein the tripping coil, switch, and silicon controlled rectifier are directly connected in series and are electrically connected to the positive and negative power output ends of the DC power output from the rectification circuit, wherein the light emitting diode is connected in parallel to ends of the switch and between the tripping coil and the silicon controlled rectifier, wherein a control pole of the silicon controlled rectifier is capable of connection with a shielding layer of output wires through at least one of the current limiting resistors and the diode, and wherein, when the switch is in a resetting state, the switch is closed, and, when the switch is in a tripped state, the switch is open.