Charging method and mobile terminal

A mobile terminal and charging method technology, applied in the communication field, can solve the problems of short constant current charging time, long constant voltage charging time, and long charging time of lithium batteries, etc.

Active Publication Date: 2016-03-30
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual charging process, due to the internal resistance of the lithium battery, the lithium battery voltage measured by the power management chip is often higher than the actual voltage ...

Method used

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  • Charging method and mobile terminal
  • Charging method and mobile terminal
  • Charging method and mobile terminal

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0045] Embodiments of the present invention provide a charging method and a mobile terminal, which can shorten the charging time of a battery. Each will be described in detail below.

[0046] see figure 1 , figure 1 It is a flow chart of a charging method disclosed in the embodiment of the present invention. Such as figure 1 As shown, the charging method described in this embodiment includes steps:

[0047] 101. When charging the battery wit...

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Abstract

The embodiment of the invention discloses a charging method and a mobile terminal. The method comprises the steps as follows: when constant-current charging is carried out on a battery, an initial cutoff voltage and an initial charging current of the battery are set; the initial cutoff voltage is greater than a safety cutoff voltage of the battery; the difference between the initial cutoff voltage and the safety cutoff voltage is smaller than or equal to a preset voltage difference value; a battery voltage of the battery is detected; whether the present value of the battery voltage is equal to the initial cutoff voltage or not is judged; when the present value of the battery voltage is equal to the initial cutoff voltage, the initial cutoff voltage and the initial charging current are gradually turned down until the initial cutoff voltage is smaller than or equal to the safety cutoff voltage, and constant-voltage charging is carried out on the battery; and the constant-voltage charging voltage is the safety cutoff voltage. Through implementation of the charging method and the mobile terminal, the charging time of the battery can be shortened.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a charging method and a mobile terminal. Background technique [0002] At present, mobile terminals such as mobile phones and tablet computers generally use lithium batteries for power supply, and the charging of lithium batteries is generally divided into four processes: trickle charging, pre-charging, constant-current charging, and constant-voltage charging. During the constant current charging process, due to the high current charging, the lithium battery can be charged quickly, saving the charging time of the lithium battery. When the voltage of the lithium battery reaches the safe cut-off voltage, it enters the constant voltage charging stage. In order to ensure the safety of the lithium battery, the safe cut-off voltage is generally set to a fixed value, which is lower than the safe voltage of the lithium battery. However, in the actual charging process, due to the ...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0071H02J7/00
Inventor 邓南巍
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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