Connector leakage protection system and circuit

A connector leakage protection circuit comprising:

• a direct current (DC) power supply circuit having an output pin;
• a current foldback circuit having a first end configured to be coupled to the output pin;
• an anti-interference circuit having a first end coupled to a second end of the current foldback circuit, and a second end configured to be coupled to a power pin of a connector circuit;
• and
• a leakage protection circuit coupled between the output pin and the first end of the current foldback circuit, the second end of the current foldback circuit and the first end of the anti-interference circuit, or the second end of the anti-interference circuit and the power pin;
• wherein when the output pin outputs a DC voltage, the leakage protection circuit is switched on;
• and when the output pin does not output the DC voltage, the leakage protection circuit is switched off, thereby preventing current leakage from the power pin flowing to the output pin.

A connector leakage protection circuit comprising:

• a direct current (DC) power supply circuit having an output pin;
• a current foldback circuit having a first end configured to be coupled to the output pin;
• an anti-interference circuit having a first end coupled to a second end of the current foldback circuit, and a second end configured to be coupled to a power pin of a connector circuit;
• a filtration circuit having a first end coupled to the second end of the current foldback circuit, and a second end grounded;
• and
• a leakage protection circuit coupled between the output pin and the first end of the current foldback circuit, the second end of the current foldback circuit and the first end of the anti-interference circuit, or the second end of the anti-interference circuit and the power pin;
• wherein when the output pin outputs a DC voltage, the leakage protection circuit is switched on;
• and when the output pin does not output the DC voltage, the leakage protection circuit is switched off, preventing current leakage from the power pin flowing to the output pin.