Method for charging mobile phone under low temperature

A technology of mobile phone charging and mobile phone charger, which is applied in the direction of secondary battery charging/discharging, secondary battery repair/maintenance, etc., and can solve the problem of charging can not be fully charged, etc.

Active Publication Date: 2011-11-16
HUIZHOU TCL MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a mobile phone charging method at low temperature, aiming to solve the problem that the existing mobile phone cannot be fully charged after being charged in a low temperature environment after transitional discharge

Method used

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  • Method for charging mobile phone under low temperature
  • Method for charging mobile phone under low temperature
  • Method for charging mobile phone under low temperature

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Embodiment Construction

[0023] 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.

[0024] see figure 2 , the specific steps of the charging method are:

[0025] Step S100: Plug in the mobile phone charger.

[0026] Step S200: Detect whether the battery voltage is less than 2.9V, if yes, execute step S300, otherwise execute step S500.

[0027] Step S300: Start the pre-charging process.

[0028] Step S400: Stop the pre-charging process when it is detected that the battery voltage reaches 3.2V.

[0029] Step S500: Start the boot process.

[0030] Step S600: Turn on the charging circuit before the end of the boot process, and give a charging current pulse to the battery.

[0031] It can be at a certain point in time between the boot process, generally it can be set at 1 to 1.5 seconds after the start of the boot proc...

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Abstract

The invention discloses a method for charging a mobile phone under a low temperature. The method comprises the following steps: step S100, inserting a mobile phone charger; step S200, detecting whether a battery voltage is lower than 2.9V, executing step S300 if the battery voltage is lower than 2.9V, and executing step S500 if not; step S300, starting a pre-charging process; step S400, stopping the pre-charging process when a detected battery voltage reaches 3.2V; step S500, starting a power-on process; step S600, starting a charging circuit to provide the battery with a charging current pulse; step S700, detecting whether the battery voltage is higher than 2.9V when the power-on process is finished, executing step S800 if the battery voltage is higher than 2.9V, and executing step S300 if not; step S800, starting a constant heavy-current charging process. When a mobile phone battery is over-discharged, the battery can not be fully charged under a low-temperature. With the method provided by the invention, the problem can be solved.

Description

technical field [0001] The invention relates to a method for charging a mobile phone, in particular to a method for solving the problem of charging an MTK platform mobile phone at low temperature after the battery is over-discharged. Background technique [0002] For some mobile phones currently on the market, when the power in the battery is exhausted after normal use, or because the battery is excessively consumed after being idle for a long time, the user plugs in the charger to charge the mobile phone. Depending on the power consumption of the battery, this time is also different, ranging from a few minutes to tens of minutes), the phone may not respond (the screen will not show the charging status like the usual charging status, and some phones will add an additional indicator light ). This is a normal phenomenon, and this process is usually called the pre-charging process of the mobile phone. This is because the voltage of the mobile phone battery is very low after o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44
CPCY02E60/12Y02E60/10
Inventor 李坚陈佳娜
Owner HUIZHOU TCL MOBILE COMM CO LTD
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