Mobile terminal, direct charging power adapter and charging method

Abstract

The invention discloses a mobile terminal, a direct charging power adapter and a charging method. The charging method comprises the steps that firstly, the direct charging power adapter is arranged and is in communication with the mobile terminal in a UART communication mode; secondly, according to the difference of the configuration conditions of communication pins of different charged devices, a charging type identification strategy is designed in the mobile terminal, and accordingly automatic identification of the mobile terminal on the types of external devices is achieved. Meanwhile, a special fast charging mode is designed for the direct charging power adapter; charging voltage output by the direct charging power adapter is used for conducting high-current direct charging on a battery during the period when centralized charging is conducted on the battery of the mobile terminal, and the volt value of the charging voltage is adjusted dynamically according to change of the voltage of the battery; thus, on the premise of ensuring battery charging safety, the charging speed of the battery is substantially increased, the time required for charging the mobile terminal every time is shortened, and the influence caused when the mobile terminal needs to be charged frequently for a long time on a user during daily use is reduced.

Description

technical field [0001] The invention belongs to the technical field of DC charging, and in particular relates to a method for charging a battery inside a mobile terminal, a mobile terminal and a direct charging source adapter supporting the charging method. Background technique [0002] At present, portable mobile terminals have penetrated into every aspect of people's lives and become the leading force leading the progress of the semiconductor industry. Most of the current portable mobile terminals use rechargeable batteries to power the internal system circuits of the products. As portable products support more and more functions, the power consumption of their system circuits also increases. In the case of limited battery capacity, the battery life after charging is gradually shortened, resulting in more and more frequent charging operations. . [0003] At present, there are two main battery charging methods widely used: one is to use a conventional power adapter (char...

AI Technical Summary

Problems solved by technology

The long charging time seriously affects the user's daily use of portable mobile terminals, which greatly reduces user satisfaction

Images