Fast-charging method and mobile terminal

A technology for fast charging and mobile terminals, applied in electric vehicles, data exchange chargers, charging and maintenance charging/discharging, etc. It can solve the problems that charging time affects users' daily use of mobile terminals and reduces satisfaction, so as to speed up charging , Improve satisfaction, and increase charging current

Active Publication Date: 2015-10-07
QINGDAO HISENSE MOBILE COMM TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

The long charging time seriously affects the daily use of mobil...

Method used

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  • Fast-charging method and mobile terminal
  • Fast-charging method and mobile terminal
  • Fast-charging method and mobile terminal

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Embodiment Construction

[0031] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] In this embodiment, in order to make full use of the characteristics of the dynamically adjustable output voltage of the direct charging source adapter to achieve a significant increase in charging speed, firstly, the hardware of the mobile terminal with a built-in rechargeable battery is modified so that the mobile terminal can support conventional charging. Mode, that is, the battery is charged through the power management chip inside the mobile terminal; it can also support the direct charging mode, that is, the charging power is directly delivered to the battery, and the battery is directly charged with a large current. Then, according to the modified hardware circuit, a software program is designed to dynamically adjust the charging voltage output by the direct charging source adapter according to the real-tim...

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Abstract

The invention discloses a fast-charging method and a mobile terminal. The fast-charging method is provided based on the power adapter of which output voltage dynamic is adjustable. The voltage of the battery-core of a battery is divided into multiple sections, then a sectional-type constant-current charging way is adopted, the value of the charging voltage output through the power adapter is adjusted dynamically according to the located sections of the battery-core voltage of the battery inside the mobile terminal in the charging process, and the battery is charged directly through the charging voltage output through the power adapter, so that the charging current is improved greatly, thereby the charging speed of the battery is accelerated, the single-time charging time needed by the movable terminal is shortened, the influence of the situation that the mobile terminal needs to be charged frequently for a long time on daily use of a user is lowered, and the customer-using satisfaction degree in promoted to a large extent.

Description

technical field [0001] The invention belongs to the technical field of DC charging, and in particular relates to a method for fast charging a battery inside a mobile terminal and a mobile terminal designed based on the charging method. Background technique [0002] At present, mobile terminals have penetrated into all aspects of people's lives and become the leading force leading the progress of the semiconductor industry. Most of the current mobile terminals use rechargeable batteries to power the internal system circuits of the products. As portable products support more and more functions, the power consumption of their system circuits also increases. In the case of limited battery capacity, the battery life after charging is gradually shortened, resulting in more and more frequent charging operations. . [0003] At present, there are two main battery charging methods widely used: one is to use a conventional power adapter (charger) to charge the battery, that is, the s...

Claims

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Application Information

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IPC IPC(8): H02J7/04
CPCH02J7/00036H02J7/00047H02J7/0045H02J7/0069H02J7/00H02J7/007184
Inventor 李春乾赵玉峰杜文娟俞茂学
Owner QINGDAO HISENSE MOBILE COMM TECH CO LTD
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