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Terminal and method for accurately obtaining battery voltage by discharging during charging

A battery voltage and discharge voltage technology, applied in battery circuit devices, secondary batteries, circuits, etc., can solve problems such as high battery power and abnormal power display, and achieve the effect of ensuring full charging and stable charging

Active Publication Date: 2016-01-13
威海神舟信息技术研究院有限公司
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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 battery power obtained.
Therefore, when the existing mobile terminals are used in daily life, the problem of abnormal power display is common.

Method used

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  • Terminal and method for accurately obtaining battery voltage by discharging during charging
  • Terminal and method for accurately obtaining battery voltage by discharging during charging
  • Terminal and method for accurately obtaining battery voltage by discharging during charging

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Embodiment Construction

[0043] The present invention provides a terminal and method for accurately obtaining battery voltage by discharging during charging. When the battery is charging, no current flows in the internal resistance of the battery by discharging, so that the true voltage of the battery can be accurately obtained, and then Obtain the accurate power of the battery and present it to the user.

[0044] In order to make the objectives, technical solutions and effects of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0045] See figure 2 , Which is a structural block diagram of a terminal provided by the present invention for accurately obtaining battery voltage through a discharge method during charging. Such as figu...

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Abstract

The invention discloses a terminal and method of precisely acquiring battery voltage by discharging during charging. The terminal comprises a charge interface, a battery, a resistor, a power management module and a central processing unit. The power management module is used for notifying the central processing unit to set zero initial discharge current when detecting battery charging, acquiring a voltage difference of ends of the resistor, and judging whether or not current flows by the resistor according to the voltage difference; when no current flows by the resistor, the power management module directly acquires voltage of a battery; when current flows by the resistor, the power management module notifies the central processing unit to amplify the discharge current before acquiring the voltage difference of the ends of the resistor and judging whether or not the current flows by the resistor, and only when no current flows by the resistor, the power management module acquires the voltage of the battery. The terminal and the method have the advantages that no flow is enabled to flow by the internal resistor of the battery by means of discharging during battery charging, actual voltage of the battery can be obtained accurately, and true electric quantity of the battery can be obtained and displayed to users.

Description

Technical field [0001] The present invention relates to electronic equipment, and in particular to a terminal and method for accurately obtaining battery voltage through a discharge mode during charging. Background technique [0002] In recent years, smart terminals such as mobile phones have developed rapidly and have basically reached the status of one hand. As the development of smart terminals is toward smarter and larger screens, the CPU (central processing unit, central processing unit) of smart terminals is required to have faster processing speeds and make them consume more power. Existing smart terminals generally use large-capacity batteries. In order to improve the endurance of smart terminals. [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 determine whether to continue charging and feedback the real power of the battery to the user. In the existing mobile term...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00G01R31/36H01M10/48
CPCY02E60/10
Inventor 俞斌
Owner 威海神舟信息技术研究院有限公司
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