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Method and system for detecting battery of mobile device in charging

A technology for mobile equipment and battery power, applied in the direction of measuring electrical variables, measuring electricity, measuring devices, etc., can solve problems such as inaccurate battery power detection, achieve the effect of simple and easy to implement detection method, low cost, and solve inaccurate detection

Active Publication Date: 2012-12-19
临沂高新人才教育发展集团有限公司
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Problems solved by technology

[0012] The technical problem to be solved by the present invention is to provide a method and system for detecting the battery power of a mobile device in a charging state in order to solve the problem of inaccurate battery power detection during charging due to the internal resistance of the battery. question

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  • Method and system for detecting battery of mobile device in charging
  • Method and system for detecting battery of mobile device in charging
  • Method and system for detecting battery of mobile device in charging

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages 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.

[0034] In order to solve the problem of "falsely high" battery power detected by the mobile device during the charging process due to the existence of battery internal resistance, the present invention first detects the "falsely high" value of the battery voltage after the battery starts charging, and When calculating the actual voltage of the battery. Subtract the "false high" value of the battery voltage detected by the mobile phone to obtain the actual voltage of the battery, and then calculate and update the battery power, so that the "false high" problem of the battery power can be ...

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Abstract

The invention discloses a method and a system for detecting battery of mobile device in charging. Virtual high voltage of a battery is detected in charging and is updated regularly. The virtual high voltage is subtracted from measured battery voltage to obtain actual battery voltage during calculation of the actual battery voltage. Actual battery capacity is obtained by checking a pre-stored relation table for the battery voltage and battery capacity. The problem that battery detection is inaccurate in charging due to internal battery resistance is solved effectively. The detecting method is simple and is easy to implement. Implementation of the detecting method by software is low in cost.

Description

technical field [0001] The invention relates to a method for detecting battery power, in particular to a method and system for detecting battery power by removing false high voltage during battery charging. Background technique [0002] At present, the battery power detection when the mobile phone is charging is mainly judged by detecting the voltage at both ends of the battery. This method is low in cost and can be realized only by detecting the voltage at both ends of the battery through an ADC. When the charger starts to charge, the battery voltage detected by the mobile device will be much higher than the actual voltage of the battery, resulting in a falsely high displayed battery level. When the charger is pulled out to stop charging, the battery voltage detected by the mobile device will return to the actual voltage of the battery, causing the displayed battery power to drop. [0003] For example, with figure 1 The battery charging circuit shown as an example, figu...

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Application Information

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IPC IPC(8): G01R31/36
Inventor 徐建峰
Owner 临沂高新人才教育发展集团有限公司
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