Connector

A connector, wherein a first end of the connector is provided with a first interface, a second end of the connector is provided with a second interface, the first interface is connected to a charging power supply, and the second interface comprises:

• a first switch unit, wherein the first switch unit is connected in series between a power input terminal and a power output terminal of the second interface;
• and
• a second switch unit, wherein the second switch unit is connected to a control terminal of the first switch unit and a ground pin of the second interface, wherein
• in a case that the second interface is disconnected from a to-be-charged device, a high-level reference voltage is input into the ground pin of the second interface so that the second switch unit is in an off state, which causes the first switch unit to be in an off state;
• and in a case that the second interface is connected to the to-be-charged device, the ground pin of the second interface is connected to a ground pin of the to-be-charged device, the ground pin of the second interface is grounded, and the first switch unit is in an on state.