Power supply control circuit and method of mobile terminal and power supply management module

Abstract

The embodiment of the present invention discloses a power supply control circuit and method of a mobile terminal and a power supply management module. The power supply control circuit comprises an external power supply input end, a battery, a voltage conversion module, a first switch, a mainboard, the power supply management module, a voltage comparison module, a switch control module and a voltage stabilization capacitor. The voltage comparison module and the power supply management module are connected with the switch control module, and the switch control module is connected with the first switch. The switch control module is used to control the first switch to connect an external power supply circuit if the voltage comparison module determines that an external power supply inputted by the external power supply input end satisfies a threshold condition, and the power supply management module outputs an instruction for connecting the external power supply circuit, so that the battery does not supply power, the situation that the battery is charged while discharging can be reduced, the charge and discharge times of the battery can be reduced, and the service life of the battery is prolonged. Otherwise, the switch control module is used to control the first switch to connect a battery power supply circuit, thereby guaranteeing the power supply continuity to the mobile terminal.

Description

technical field [0001] The present invention relates to the technical field of terminals, in particular to a power supply control circuit, a power supply control method and a power management module of a mobile terminal. Background technique [0002] With the development of mobile terminal technology, mobile terminals, such as mobile phones and tablet computers, have increasingly powerful functions, gradually covering all aspects of people's lives, and people are increasingly dependent on mobile terminals. With the intensive use of mobile terminals by people and the limitation of the standby time of mobile terminals, such a situation often occurs that when a user is using a mobile terminal, the remaining power of the mobile terminal is low and cannot support the user to continue using it. [0003] For this reason, users often use the mobile terminal while connecting the power cord. Power supply to support the user to continue to use. [0004] However, the life of the exist...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a power supply control circuit, a power supply control method, and a power management module of a mobile terminal, which are used to solve the problem of increasing battery charging and discharging times caused by connecting an external power supply while the mobile terminal is running

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