Charging system and charging method suitable for multi-channel USB Type-C

The invention provides a charging system and charging method suitable for multipath USB Type-C. The charging system comprises a power supply module, a Type-C voltage conversion module and a Type-C port, and the Type-C voltage conversion module comprises a step-down power circuit, a VBUS feedback control circuit, a single bus communication circuit and a VINT feedback control circuit. The VBUS feedback control circuit acquires a target voltage Vref of a Type-C port connected with a load and a voltage value of an output voltage VBUS and controls the output voltage VBUS to be consistent with the voltage value of the target voltage Vref, and the VINT feedback control circuit receives the voltage value of the target voltage Vref of the Type-C port and receives voltage values of target voltages Vref_n of other Type-C ports; the target voltage value Vref is compared with the target voltage value Vref_n, and an adjustment voltage target value VINT_Ref is outputted; the voltage value of the direct current voltage VIN i