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Laptop lithium battery charging protection method

A charging protection, lithium battery technology, applied in the direction of battery disconnection circuit, battery circuit device, safety/protection circuit, etc., can solve the problems of battery power consumption, battery life reduction, lithium battery bulging and other problems

Pending Publication Date: 2019-12-24
SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hard drives, other disk drives, and LCD monitors all drain a lot of battery power
Even browsing the internet over a wireless connection can consume some battery power
When the lithium battery is low in power, it needs to be charged, but when the lithium battery is overcharged or overdischarged, it is easy to cause the lithium battery to bulge and swell, reducing the service life of the battery

Method used

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  • Laptop lithium battery charging protection method
  • Laptop lithium battery charging protection method

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Embodiment Construction

[0023] The invention provides a charging protection method for a notebook lithium battery, which uses a power supply control circuit to control a switch control circuit to manage the lithium battery charging circuit, wherein the power supply control circuit includes a BIOS, and the maximum supported charging current is set in the BIOS, and by setting the EC The GPIO signal enable state controls the on-off of the switch control circuit. When the GPIO signal is set high, the switch control circuit is connected to the lithium battery charging circuit. When the maximum supported charging current is exceeded, the GPIO signal is set low, and the switch control circuit disconnects the lithium battery. charging circuit.

[0024] Simultaneously provide a kind of notebook lithium battery charging protection system corresponding to the above method, including a power supply control module, a switch control module and a lithium battery charging module,

[0025] The power control module us...

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Abstract

The invention discloses a laptop lithium battery charging protection method, which relates to the technical field of laptop batteries. A power supply control circuit is used for controlling a switch control circuit to manage a lithium battery charging circuit, the power supply control circuit comprises a BIOS, the maximum supported charging current is set in the BIOS, on or off of the switch control circuit is controlled by setting the GPIO signal enabling state of the EC, when the GPIO signal is set to be high, the switch control circuit is connected with the lithium battery charging circuit,and when the maximum supported charging current is exceeded, the GPIO signal is set to be low, and the switch control circuit disconnects the lithium battery charging circuit.

Description

technical field [0001] The invention discloses a charging protection method for a notebook lithium battery and relates to the technical field of notebook batteries. Background technique [0002] Notebook Computer (NoteBook Computer, abbreviated as: NoteBook, NB), also known as notebook, portable or laptop computer (Laptop Computer, can be shortened to Laptop) in Chinese, is a small, portable personal computer, usually weighing 1- 3 kg. Its development trend is that the volume is getting smaller and smaller, the weight is getting lighter and lighter, and the function is more and more powerful. Like Netbook, which is commonly known as netbook, the main difference from PC is that it is portable and convenient, referred to as "PC". [0003] Both laptops and desktops require electrical current to operate and have small batteries to keep the real-time clock running. However, unlike desktops, laptops are very portable and can operate on batteries alone. [0004] Lithium batteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/007H02J7/0031
Inventor 马丽丽宋立伟郭坤
Owner SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD