Mobile terminal and Power management method thereof

Abstract

The invention relates to the technical field of wireless communication and provides a power management method of a mobile terminal. The mobile terminal comprises a power source management chip for managing a power source; the power management chip is provided with a crystal power source for controlling the output of the power source; the power source management method comprises the following steps of: controlling the crystal power source to be turned on or off according to a control signal; turning on or off the crystal power source by the response control of the crystal power source and generating a corresponding prompt signal; and controlling the output of a power supply source according to the prompt signal to enable the system to be in a working state or deep sleep state. The invention also provides a power source management device of the mobile terminal and the mobile terminal provided with the power source management device. The invention simplifies the control flow of the powersupply source of the mobile terminal, and improves the control efficiency of a mobile terminal system between the normal working state and the deep sleep state.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and more specifically, to a mobile terminal power management method and a mobile terminal. Background technique [0002] With the popularization and increasingly powerful functions of mobile terminals (such as mobile phones, PDAs, etc.), the mobile terminals have more and more external devices, and the requirements for power management are also getting higher and higher. The current terminal power management scheme needs to control the power management chip through the baseband chip to turn off the relevant power supply or change the power supply voltage in turn before entering deep sleep; The chip controls the power management chip to turn on the relevant power supply or change the power supply voltage in turn. This solution needs to wake up the baseband chip first and then control the power management chip through the baseband chip when the terminal transitions from deep ...

AI Technical Summary

Problems solved by technology

The current terminal power management solution needs to control the power management chip through the baseband chip to turn off the related power supply or change the power supply voltage in turn before entering deep sleep; The chip controls the power management chip to turn on the relevant power supply or change the power supply voltage in turn. This solution needs to wake up the baseband chip first and then control the power management chip through the baseband chip when the terminal transitions from deep sleep to normal working state. The conversion speed is slow. ,low efficiency

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