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Storage battery protection circuit preventing overcharge

A protection circuit, overcharging technology, applied in battery circuit devices, emergency protection circuit devices, circuit devices, etc., can solve the problems of increasing the plate resistance, affecting the capacity and life of the battery, preventing overdischarge, protecting the capacity and life. , to ensure the effect of normal use

Inactive Publication Date: 2015-01-14
费新华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Take the lead-acid battery as an example, if the discharge is excessive, the lead sulfate crystal will form a larger body, which not only increases the resistance of the plate, but also makes it difficult to restore it during charging, which directly affects the capacity and life of the battery.

Method used

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  • Storage battery protection circuit preventing overcharge
  • Storage battery protection circuit preventing overcharge

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Embodiment Construction

[0015] see figure 1 and figure 2 , a storage battery protection circuit for preventing overcharging, comprising a charging power supply, a storage battery 1 and a charging protection circuit 2, the charging power supply is connected to the storage battery through the charging protection circuit 2, and the storage battery is connected to a load 4 through the discharging protection circuit 3, not only It can prevent overcharging during the charging process, and prevent over-discharging during the discharging process, so as to ensure the normal use of the battery and protect the capacity and life of the battery. The discharge protection circuit 3 includes a discharge comparator and an electronic switch I, the discharge comparator is connected to the electronic switch I and sends a control signal to it, and the non-inverting input terminal and the reverse input terminal of the discharge comparator are respectively connected to On the positive and negative poles of the battery, t...

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PUM

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Abstract

The invention discloses a storage battery protection circuit preventing overcharge. In the working process of an existing storage battery, the existing storage battery only has the charging protection function and is lack of the discharging protection function, over-discharge will damage the capacity of the storage battery and shorten the service life of the storage battery. The storage battery protection circuit preventing overcharge comprises a charging source, a storage battery and a charging protection circuit. The charging source is connected with the storage battery through the charging protection circuit. The storage battery is connected with loads through a discharging protection circuit. Due to the facts that the charging source is connected with the storage battery through the charging protection circuit and the storage battery is connected with the loads through the discharging protection circuit, overcharge can be prevented in the charging process, over-discharge can also be prevented in the discharging process, normal use of the storage battery is guaranteed, and the capacity and the service life of the storage battery are protected.

Description

[0001] This application is a divisional application, the original application number is 2013100146460, the application date is January 15, 2013, and the title of the invention is a battery protection circuit. technical field [0002] The invention relates to the technical field of power circuits, in particular to a storage battery protection circuit. Background technique [0003] During the use of the battery, it goes through a charging process and a discharging process. The charging process is often protected by a protection circuit, but the discharging process lacks protection. When the battery is over-discharged, it will seriously damage the battery itself. Take the lead-acid battery as an example, if the discharge is excessive, the lead sulfate crystal will form a larger body, which not only increases the resistance of the plate, but also makes it difficult to restore it during charging, which directly affects the capacity and life of the battery. . Contents of the inv...

Claims

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Application Information

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IPC IPC(8): H02H7/18H02J7/00
Inventor 费新华
Owner 费新华
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