Mobile terminal for detecting electric quantity of battery on line and detection method thereof

Abstract

The invention discloses a mobile terminal for detecting the electric quantity of a battery on line and a detection method thereof. The mobile terminal comprises a voltage measuring module, an energy storage unit, an MCU (Micro Control Unit) control module and the battery, wherein the MCU control module, the battery and the energy storage unit are mutually connected in parallel; the voltage measuring module and the MCU control module are connected with the anode and the cathode of the battery; the MCU control module is used for controlling a power supply circuit of the battery, the voltage measuring module and the MCU control module and a power supply circuit of the battery and the energy storage unit to be conducted and controlling a power supply circuit of the energy storage unit and theMCU control module to be broken off when the mobile terminal normally works; and when the mobile terminal is positioned in the electric quantity detection state of the battery, the MCU control moduleis used for controlling the power supply circuit of the energy storage unit and the MCU control module to be conducted and controlling the power supply circuit of the battery, the voltage measuring module and the MCU control module and the power supply circuit of the battery and the energy storage unit to be broken off. According to the invention, on the premise of ensuring the manufacturing costof the mobile terminal, the accurate detection of the electric quantity of the battery can be realized.

Description

technical field [0001] The invention relates to a battery power detection technology, in particular to a mobile terminal for online detection of battery power and a detection method thereof. Background technique [0002] In portable electronic products, users need to know the power level of the battery in real time. Existing methods for detecting battery power are generally divided into two types: one is to detect the online battery voltage; the other is to calculate the battery power by integrating current. [0003] Among the above methods, the error of the first method is large, especially when the electric current used by the electronic product is relatively large, the measured battery power is seriously lower than the actual battery power. Although the second method is more accurate, as the electronic product is used for a long time, the capacity of the battery changes, making this detection method require regular calibration. In addition, the cost of this method is re...

AI Technical Summary

Problems solved by technology

Although the second method is more accurate, as the electronic product is used for a long time, the capacity of the battery changes, making this detection method require regular calibration

In addition, the cost of this method is relatively high, and a dedicated IC (integrate circuit, integrated circuit) is required to realize

[0004] Therefore, the battery power detection technology of existing electronic products still needs to be improved and improved.

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