Terminal capable of accurately obtaining battery voltage in charging process and battery voltage obtaining method

A battery voltage and charging technology, applied in the direction of measuring current/voltage, measuring electrical variables, measuring devices, etc., can solve the problems of abnormal power display, high battery power, etc., achieve stable charging and ensure full charging

Active Publication Date: 2014-03-05
威海高新园区运营管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the internal resistance of the battery, the battery voltage obtained during charging is too high, which will lead to the high

Method used

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  • Terminal capable of accurately obtaining battery voltage in charging process and battery voltage obtaining method
  • Terminal capable of accurately obtaining battery voltage in charging process and battery voltage obtaining method
  • Terminal capable of accurately obtaining battery voltage in charging process and battery voltage obtaining method

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Embodiment Construction

[0038] The present invention provides a terminal capable of accurately obtaining battery voltage during charging and a method for obtaining battery voltage. When the battery is being charged, the real voltage of the battery can be accurately obtained, and then the accurate electric quantity of the battery can be obtained and presented to the user.

[0039] In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] see figure 2 , which is a structural block diagram of a terminal capable of accurately obtaining battery voltage during charging provided by the present invention. Such as figure 2 As shown, the terminal includes a charging interface 1...

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PUM

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Abstract

The invention discloses a terminal capable of accurately obtaining battery voltage in the charging process and a battery voltage obtaining method. The device comprises a charging port, a battery, a resistor and a power management module. The first end of the power management module is connected with the charging port. The second end and the third end of the power management module are connected with one end of the resistor and a system module of the mobile terminal. The fourth end of the power management module is connected with the other end of the resistor and an anode of the battery. The power management module is used for setting the initial charging cut-off voltage, obtaining the voltage difference at the two ends of the resistor when the battery is charged, and determining the voltage value of the battery according to the voltage difference. When the battery is charged, the actual voltage of the battery can be accurately obtained, then the real electric quantity of the battery is obtained and displayed to users, the users can know the electric quantity of the battery, and when the terminal is charged, whether the battery is fully charged can be accurately known, so that charging of the battery is stable and accurate.

Description

technical field [0001] The invention relates to electronic equipment, in particular to a terminal capable of accurately obtaining battery voltage during charging and a battery voltage obtaining method. Background technique [0002] In recent years, smart terminals such as mobile phones have developed rapidly, and have basically reached the state of one in everyone's hands. Since the development of smart terminals is moving towards smarter and larger screens, the CPU (central processing unit, central processing unit) of smart terminals needs to be faster in processing speed, so that it consumes more power. Existing smart terminals generally use large-capacity battery, so as to improve the battery life of the smart terminal. [0003] When the smart terminal is charging, it is often necessary to display the real-time power information of the battery, so that the smart terminal can judge whether it needs to continue charging, and feedback the real power of the battery to the us...

Claims

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Application Information

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IPC IPC(8): G01R19/00
Inventor 俞斌
Owner 威海高新园区运营管理有限公司
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