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Method and equipment for shortening charging time

A technology that shortens charging time and equipment. It is used in secondary battery charging/discharging, current collectors, electric vehicles, etc., and can solve the problems of insufficient charging time and shortening.

Inactive Publication Date: 2015-05-13
GUANGDONG XIAOTIANCAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method of shortening the charging time with higher charging efficiency, aiming at solving the problem that the parasitic resistance of the existing battery charging method is set to a fixed value, and the maximum advantage of shortening the charging time cannot be exerted

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Embodiment Construction

[0016] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] see figure 1 and figure 2 , the method for shortening the charging time in a preferred embodiment of the present invention is applied to a portable electronic device including a rechargeable battery, such as a mobile terminal, and the method includes the following steps:

[0018] Step S110, acquiring the variation of the current value and the voltage value of the battery, and calculating the parasitic resistance of the battery. The voltage of the battery and the data of charging and discharging current can be obtained at any time through a device, such as...

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Abstract

The invention provides a method and equipment for shortening charging time. The method comprises the following steps: the variation of the current value and the voltage value of a battery is acquired, and the parasitic resistance of the battery is calculated; battery charging is started with preset charging current and preset fully charging voltage; the actual charging current is detected, and the preset fully charging voltage is adjusted according to the change of the actual charging current relative to the preset charging current until the battery is fully charged. According to the method, the voltage and charging and discharging current data of the battery at any moment are acquired to increase the charging voltage of the battery, so that the battery can be in a constant-current charging stage as long as possible only through software treatment under the condition that the current hardware is not changed, and the charging time is shortened.

Description

technical field [0001] The invention relates to battery charging technology, in particular to a method and equipment for shortening charging time. Background technique [0002] At present, in portable electronic products, the charging of the battery is basically controlled by a charging IC (integrated circuit). The entire charging process is divided into three stages: trickle charging, constant current charging, and constant voltage charging. The cut-off voltage is the full-charge voltage of the battery, that is, when the full-charge voltage reaches the full-charge voltage of the battery during the constant-current charging stage, the charging IC will switch to constant-voltage charging; due to the parasitic resistance of the entire path from the battery cell to the charging IC Existence (such as the internal resistance of the battery cell, the impedance of the MOS tube on the protection board, the impedance of the PTC (Positive Temperature Coefficient, thermistor), the impe...

Claims

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Application Information

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IPC IPC(8): H01M10/44H02J7/00
CPCY02E60/10
Inventor 廖黎
Owner GUANGDONG XIAOTIANCAI TECH CO LTD
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