Power supply management method and portable electronic device applying same

Abstract

The invention discloses a power supply management method and portable electronic device applying same. The power supply management method is applied on the portable electronic device. The portable electronic device comprises a first battery, a second battery, a central processing unit, and an operating module. The power supply management method comprises the steps which are as follows: the power consumption of a system of the portable electronic device is detected; the usable time of the second battery is calculated according to the power consumption of the system; the usable time and a preset time of the second battery are compared; when the first battery is being replaced, the power provided by the second battery is used to maintain the working state of the operating module; when the first battery is being replaced and the usable time of the second battery is smaller than the preset time, the operating frequency of the central ;processing unit is reduced. The power supply management method and portable electronic device applying same can lead a user to maintain the operating module at the original working state without interrupting all the current operations when the first battery is being replaced.

Description

technical field [0001] The invention relates to a power management technology, and in particular to a power management method and a portable electronic device using the same. Background technique [0002] With the development of technology, the application of portable electronic devices is becoming more and more common. In order to meet the characteristics of portability of portable electronic devices, the importance of batteries is self-evident. However, the capacity of the battery is usually very limited. In order to ensure the continuous use of the portable electronic device, the battery needs to be easily replaced under the normal operation of the system. [0003] Although a button battery is usually built in the current portable electronic device, the button battery is essentially an RTC battery, that is, it only provides power for the internal real-time clock and calendar, but cannot supply power to other operating modules. Therefore, if the battery is directly repla...

AI Technical Summary

Problems solved by technology

However, the capacity of the battery is usually very limited, in order to ensure the continuous use of portable electronic devices, the battery needs to be easily replaced while ensuring the normal operation of the system

[0003] Although a button battery is usually built in current portable electronic devices, the button battery is essentially an RTC battery, that is, it only provides power for the internal real-time clock and calendar, and cannot supply power to other operating modules

Therefore, if the battery is directly replaced when the portable electronic device is not connected to an external power adapter, the entire portable electronic device will not be able to operate

All operations performed by the user before replacing the battery, including surfing the Internet and transmitting data, will be interrupted, which is extremely inconvenient

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