Patent attributes
The present disclosure provides a fast charging method, a power adapter, and a mobile terminal. The method includes: transmitting, by the power adapter, a clock signal to the mobile terminal via a first data line of a USB interface in a process of coupling the power adapter with the mobile terminal, where the clock signal is configured for indicating a communication sequence between the power adapter and the mobile terminal; conducting, by the power adapter, a bidirectional communication with the mobile terminal via a second data line of the USB interface under control of the communication sequence, so as to determine to charge the mobile terminal in a fast charging mode; and adjusting, by the power adapter, a charging current to be a charging current of the fast charging mode to charge the mobile terminal.
