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Protector for battery charge-discharge control circuit of note-book computer

A charge and discharge control, notebook computer technology, applied in battery circuit devices, circuit devices, current collectors, etc., can solve the problems of effective protection of rechargeable batteries, affecting the service life of rechargeable batteries, etc., to ensure life, function and design more humane to solve the effect of repeated charging and discharging

Inactive Publication Date: 2005-03-23
宏电脑上海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But the charging and discharging control circuit of the existing notebook computer does not take measures to effectively protect the rechargeable battery, which seriously affects the service life of the rechargeable battery

Method used

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  • Protector for battery charge-discharge control circuit of note-book computer
  • Protector for battery charge-discharge control circuit of note-book computer

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Embodiment Construction

[0012] like figure 2 As shown, the present invention is in figure 1 based on improvements. A bidirectional switch is added inside the battery to control the on and off of the "SMC" and "GND" signals (the left end of the figure). Disconnecting "GND" means disconnecting the charging and discharging circuit of the battery to stop the battery from continuing to charge and discharge. The function of cutting off the charging and discharging circuit can also be realized by disconnecting the ground signal pin "GND". Ease of cost and design.

[0013] The solution of the present invention is simple and easy, and there is no need for major changes on the circuit. It is only necessary to add a switch key on the battery.

[0014] The present invention is to design a switch key on the battery or the main body of the notebook computer to forcibly control the use of the battery. With the popularization of notebook computers, the requirements for the battery life of the computer will becom...

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PUM

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Abstract

The invention discloses a protection device of charge-discharge control circuit of the cells of the notebook PCs. The rechargeable cell connects with the abovementioned charge-discharge control circuit. There is a two direction switch to control the switch-on and switch-off between the signal base pin and the ground base pin of the control interface in the cell. Adding a two direction switch to the cell can control the switch-on and switch-off of the signal of the SMC and GND. Set the key-press of the switch on the part easy to be operated by the user on the cells of the notebook PCs or on the main body. Thus if the notebook PC does not use the rechargeable cell, it can shut off at any moment and the detect circuit can not detect the electrical voltage of the cell and will judge that it has no electricity. In this way, can avoid the alternating charge and discharge of the rechargeable cell of the notebook PC, guarantee its useful life and protect the rechargeable cell completely.

Description

technical field [0001] The invention relates to a protection device for a charge and discharge control circuit of a notebook computer battery. Background technique [0002] A rechargeable battery is generally provided in a notebook computer, and the rechargeable battery is generally a lithium-ion battery with better performance. Since the service life of a lithium-ion battery is related to its charge and discharge times, effectively controlling its use times can prolong the service life of the battery. There are two power supply methods for notebook computers, namely adapter power supply and battery power supply. In use, the two are often used interactively. In many cases, the battery starts to charge before it is completely discharged, but this is also counted as one charge. Careful people who use laptops often unplug the battery to reduce the number of times the battery is used. Since the laptop battery is generally made into a built-in or part of the laptop structure, un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/16H02J7/00
Inventor 汤士东
Owner 宏电脑上海
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