USB charging cable
2019-06-15
USB charging cable
The charging line uses the two lines of VCC and GND of the power supply, while the data line uses VCC, GND, and two communication lines.
How to connect the mobile phone charging cable
Red line: positive power supply (identification on wiring: +5V or VCC)
Black line: Ground (identified as: GROUND or GND)
Generally, our data cable and charging cable are generally four wires with a USB interface. The charging line uses the two lines VCC and GND of the power supply, while the data line uses VCC, GND, and two communication lines. The data line has four lines in the USB interface, and the power line has two lines in the USB line. Therefore, the data line can be used as a power line, and the power line cannot be used as a data line.
The lines inside the data line are very thin, the different line resistances are different, the current is not the same, the current is large and the charging is fast, and vice versa. Generally, the original charger rushes fast, and the repair shop buys the miscellaneous cards. The copper wire inside is very thin and the charging is slow.
