Mobile terminal

Abstract

The invention discloses a mobile terminal. A load switch and a charging chip are arranged in a charging circuit of a battery concurrently to enable the mobile terminal to support a direct charging mode and a charging chip charging mode on hardware. The selecting and switching of the two charging modes is performed by automatically controlling the load switch and the charging chip to be enabled alternately according to the voltage changes of the cell of the battery; and in addition, based on a charger with adjustable dynamic output voltage, the selecting and switching of the regulation and control priority of the charging voltage is carried out automatically between the charging chip and a processor. Due to the designed charging policy, the charging safety of the mobile terminal can be ensured; the charging speed of the battery can be accelerated; the charging efficiency can be improved; the charging temperature rise can be lowered; the trouble to a user caused by long-time charging when the mobile terminal is needed frequently can be relieved to a large extent; and the user experience is improved.

Description

technical field [0001] The invention belongs to the technical field of mobile terminals, and in particular relates to a mobile terminal product supporting two charging modes of direct charging and charging chip charging. Background technique [0002] With the rapid development of electronic information technology, portable mobile terminal products (such as mobile phones, PADs, notebook computers, etc.) have penetrated into all aspects of people's lives and become the leading force leading the progress of the semiconductor industry. Most of the current mobile terminal products use rechargeable batteries to power the internal system circuits of the products. With the increasing number of functions supported by mobile terminal products, the power consumption of its system circuits also increases. In the case of limited battery capacity, the battery life after charging is gradually shortened, resulting in the charging operation becoming more and more difficult. frequently. [...

AI Technical Summary

Problems solved by technology

However, the efficiency of the built-in charging chip of the mobile phone will be limited by the chip manufacturing process, so that the maximum efficiency of the charging chip is generally limited to about 80% to 90%.

For high-current charging, even a 10% efficiency loss will translate into a high temperature rise of the mobile phone, which will affect the user's experience. This will also become a bottleneck for the continuous increase of the charging current and hinder the further improvement of the battery charging speed.

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