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

A charge and discharge control, notebook computer technology, applied in battery circuit devices, secondary battery charging/discharging, circuit devices, etc., can solve the problems of effective protection of rechargeable batteries, affecting the service life of rechargeable batteries, etc. The design is more user-friendly and solves 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 for note-book computer
  • Protector for battery charge-discharge control circuit for note-book computer

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Embodiment Construction

[0013] Such as figure 2 As shown, the present invention is in figure 1 based on improvements. pass figure 1 The analysis of the principle of the middle circuit can know that in order to control the charge and discharge of the battery, a switch device can be set on the circuit. The present invention is realized by adding a switch key on the signal lines of "+" and "SMC" (Fig. In this way, the "+" signal is cut off, that is, the charging and discharging current of the battery is cut off, and the battery stops charging and discharging; cutting off the SMC means that the system can no longer give a clock signal, and the state of the battery cannot be detected In this way, the system will default to the state of no battery, and the user can check the system information to confirm whether the current battery is available, so as to avoid the sudden power loss when the power adapter is unplugged. In addition to adding switches, the present invention adds a 0.1uF capacitor to the s...

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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 charge-discharge control circuit includes main control circuit used in setting the voltage of the charge-discharge current and reading the parameters of the cells, the safeguard protection circuit in packing the cells and the switch for the on-off of the circuit set between the charge-discharge electric current supply base pin of the control interface and the clock signal base pin. The invention increases the switching key of the cell and can cut off the loop used by the cells conveniently and quickly without removing the cell. The function and design is more humanized and resolves the problem of alternating charge and discharge.

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): G06F1/26H01M10/44H02J7/00
CPCY02E60/10
Inventor 汤士东
Owner 宏电脑上海
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