Charge and discharge circuit for electric battery

A charge-discharge circuit and battery discharge technology, applied in battery circuit devices, circuit devices, current collectors, etc., can solve the problems of battery pack damage and shortened battery pack service life, and achieve the effect of prolonging service life and improving reliability.

Inactive Publication Date: 2007-02-07
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the battery pack itself will be damaged, or the service life of the battery pack will be shortened.

Method used

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  • Charge and discharge circuit for electric battery
  • Charge and discharge circuit for electric battery
  • Charge and discharge circuit for electric battery

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] Hereinafter, embodiments of the charging and discharging circuit of the battery pack of the present invention will be described in detail with reference to the accompanying drawings.

[0029] figure 1 is a diagram showing the configuration of a battery discharge circuit according to the present invention. figure 2 It is a configuration diagram showing the charging and discharging circuit of the battery pack according to the present invention.

[0030] According to the embodiment of the present invention, for the charging and discharging circuit of the battery pack, the charging and discharging circuit inside the battery pack is connected to the battery. In this way, a battery maximum (Max) can produce a voltage of 4.2 volts. The battery pack is connected to the device (Set), and when the battery in the battery pack is discharged, if the battery voltage drops to the reference value. That is to say, if the battery in the battery pack is discharged, if the battery volt...

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PUM

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Abstract

The invention relates to a discharge / charge circuit of battery group, which comprises: a battery using chemical or physical reaction or obtain direct-current power; the first protecting circuit for checking the voltages at two ends of battery; the second protecting circuit that operating when the first protective circuit can not check the voltages, and cutting off the fusion when the voltage is higher than the maximum voltage; a charge IC for adjusting the current flown into the battery when the input terminal of power source flows power into the adaptor, utile the charge reaches the stable standard; and a micro computer for checking the convert transistor whose one end is connected to the fusion and another electrode is connected to the input terminal of power, to control the system via standard of power. The invention will charge power to the charge terminal of host, when the battery is mounted.

Description

technical field [0001] The invention relates to a charging and discharging circuit for a battery pack. In particular, it relates to a charging and discharging circuit for a battery pack that can protect the battery pack by supplying power to the charging terminal of the main system after checking whether the battery pack is installed. Background technique [0002] Generally, a portable digital video disk (Digital Video Disk; DVD) player has a battery pack that can be used continuously for a long time and is composed of a plurality of batteries. [0003] Now, the battery (Battery) of the technology used in the SONY family of portable DVD players (Portable DVD Player) that is widely used all over the world is provided with a charging and discharging circuit inside the battery pack (Battery Pack). [0004] Of course, mobile phones or PDAs use chargers with other charging devices. However, from the design level, the content is generally similar. [0005] In the conventional t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J7/04
Inventor 申钟九朴允钟
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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