Method and device for charging battery of terminal equipment

A terminal equipment and battery charging technology, applied in battery circuit devices, secondary battery charging/discharging, circuit devices, etc., can solve the problem that the system is difficult to take protection

Inactive Publication Date: 2017-05-31
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the sharp increase in current during this process will bring certain challenges to the design of the charger performance, and if there is any abnormality in the mobile terminal, it is difficult for the system to take protective measures in such a short period of time
Therefore, this method has certain security risks

Method used

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  • Method and device for charging battery of terminal equipment
  • Method and device for charging battery of terminal equipment
  • Method and device for charging battery of terminal equipment

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Embodiment Construction

[0049] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0050] An embodiment of the present disclosure provides a method for charging a battery of a terminal device, which can be used in a charging device.

[0051] figure 1 It is a flowchart of a method for charging a battery of a terminal device according to an exemplary embodiment.

[0052] Such as figure 1 As shown, the method includes steps S101-S104:

[0053] In step S101, during t...

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Abstract

The invention relates to a method and device for charging a battery of terminal equipment. The method comprises the steps of detecting charging voltage of the battery in the charging process of the battery; when detecting that the charging voltage is smaller than or equal to startup voltage of the terminal equipment, charging the battery by adopting first preset current; when the charging voltage is greater than the startup voltage and smaller than the preset voltage, carrying out constant-current charging by adopting the method of ascending charging current to the maximum charging current permitted by the battery in a stepped manner; and when detecting that the charging voltage is increased to preset voltage, descending the charging current to second preset current in a stepped manner and carrying out constant-voltage charging in an on-off charging manner. Through the method and the device, the line damage caused by over-high current at the beginning of constant-current charging is avoided, the design pressure of a charger is lowered, and if abnormal power supply appears, the charger has enough time for protection, so that the uncertain condition due to the fact that the current ascends too fast is effectively avoided, so that the battery is protected.

Description

technical field [0001] The present disclosure relates to the technical field of battery charging, and in particular, to a battery charging method and device for a terminal device. Background technique [0002] Fast charging includes a variety of methods, including QC protocol and PD protocol. For the mobile terminal itself, the low voltage and high current of PD is the most efficient and will become the mainstream of charging. The charging method is that when the voltage reaches a certain value, the current will immediately rise from the original small current to a large current for charging; when the voltage reaches a certain value, the current will decrease to realize fast charging. However, the sharp increase in current during this process will bring certain challenges to the design of the charger performance, and if there is any abnormality in the mobile terminal, it is difficult for the system to take protective measures in such a short period of time. Therefore, ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H02J7/00
CPCH01M10/446H02J7/007Y02E60/10
Inventor 范杰许春利雷振飞
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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