How To Connect The Three Pins Of A Dc Socket

The dc socket generally consists of three pins, but generally only two pins are connected. The center of the dc socket pin socket is positive, and the side of the socket is positive.

is negative. The connection between the single chip microcomputer and the socket core is connected to VCC, the VCC is connected to the dc socket pin of the tube and connected to GND, and the pin on the side is generally fixed.

Function, can not be connected (the pin on the side is used to connect the battery) the pin on the side and the pin on the bottom are not connected to the dc socket when the state is Unicom

of. Then the pin behind the dc socket is connected to the ground wire of the circuit board, and the pin at the bottom is connected to the positive terminal of the circuit board. (If using battery power,

The pin on the side is connected to the positive terminal of the battery)