Data line and charging device with switchable configuration channel circuit

A charging device, comprising:

• a data line, comprising:
• a Type-A interface;
• a first interface, wherein the Type-A interface and the first interface are connected through a wire, the Type-A interface and the first interface both comprise a VBUS pin, a CC pin, a D+ pin, a D− pin, and a GND pin, and the Type-A interface is connected to the VBUS pin, the D+ pin, the D− pin, and the GND pin in the first interface in a one-to-one correspondence;
• and
• a circuit identification module, wherein the circuit identification module comprises a pull-up resistor, a switch circuit, a filter circuit, and a comparator circuit, wherein a first end of the switch circuit is connected to the CC pin of the first interface, a second end of the switch circuit is connected to a first end of the pull-up resistor, a third end of the switch circuit is connected to the CC pin of the Type-A interface, a second end of the pull-up resistor is connected to the VBUS pin of the first interface, a first end of the filter circuit is connected to the CC pin of the Type-A interface, a second end of the filter circuit is connected to a first input end of the comparator circuit, a second input end of the comparator circuit is connected to the VBUS pin of the first interface, and an output end of the comparator circuit is connected to a control end of the switch circuit, and wherein under the control of the comparator circuit, the first end of the switch circuit is in communication with the second end or the third end of the switch circuit;
• and
• a charger, comprising:
• a Type-A female socket matched with the Type-A interface in the data line, wherein the Type-A female socket comprises:
• a VBUS pin, a CC pin, a D+ pin, a D− pin, and a GND pin that matched with those of the Type-A interface in the data line.