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

A notebook computer and protection device technology, applied in battery circuit devices, secondary battery charging/discharging, circuit devices, etc., can solve problems affecting the service life of notebook computer batteries, effective protection of notebook computer batteries, etc. Humanized, avoid repeated charge and discharge, and ensure the effect of life

Inactive Publication Date: 2007-10-17
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 for note-book computer
  • Protector for battery charge-discharge control circuit for note-book computer

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Experimental program
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Embodiment Construction

[0013] As shown in Fig. 2, the present invention is an improvement on the basis of Fig. 1 . Through the analysis of the principle of the circuit in Figure 1, it can be known 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 line of "+" and "SMC". In this way, the "+" signal is cut off, that is, the charging and discharging current of the laptop 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 It cannot be detected, so the system will default to the state of no battery. Users 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 also adds a 0.1uF capacitor between the ch...

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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 charging and discharging protection device for a notebook computer battery. Background technique [0002] Laptops are equipped with rechargeable laptop batteries. Laptop batteries are provided with batteries, which are generally lithium-ion batteries 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 laptops, namely adapter power supply and battery power supply. During use, the two are often used interactively. Many times, the laptop battery starts charging before it is completely discharged, but this is also counted as one charge. Careful people who use laptops often unplug the laptop battery to reduce the number of times the battery is used. Since the laptop battery is generally built-in or a part of the laptop structure, unplugging th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44G06F1/26
CPCY02E60/12Y02E60/10
Inventor 汤士东
Owner 宏电脑上海
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