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

A notebook computer and protection device technology, applied in battery circuit devices, circuit devices, current collectors, etc., can solve the problems of effective protection of notebook computer batteries, affecting the service life of notebook computer batteries, etc., and achieve more user-friendly functions and designs. Solve the effect of repeated charge and discharge and ensure lifespan

Inactive Publication Date: 2007-09-05
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 charge and discharge control circuit of existing notebook computer has not taken the measure that the notebook computer battery is carried out effective protection, and this has had a strong impact on the service life of notebook computer 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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Experimental program
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Embodiment Construction

[0012] As shown in Fig. 2, the present invention is an improvement on the basis of Fig. 1 . Add a two-way switch inside the laptop 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 notebook computer battery to stop the continuous charging and discharging of the notebook computer battery. The function of cutting off the charging and discharging circuit can also be realized by disconnecting the ground wire signal pin "GND". Capacitors reduce the cost and ease of design.

[0013] The solution of the present invention is simple and easy to implement, and no major changes are needed on the circuit. It is only necessary to add an opening key on the battery of the notebook computer.

[0014] The present invention is to design a switch key on the notebook computer battery or the notebook computer main body to forcibly control the use of the notebook compute...

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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 charging and discharging protection device for a notebook computer battery. Background technique [0002] Notebook computers are generally equipped with a rechargeable notebook computer battery, which 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, unplugging the battery...

Claims

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Application Information

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