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Lead-acid battery fast charging control circuit

A lead-acid battery and control circuit technology, applied to battery circuit devices, circuit devices, collectors, etc., can solve problems such as reducing the service life of lead-acid batteries

Active Publication Date: 2017-01-18
上海力申科学仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally, the charging of lead-acid batteries is uncontrollable, and the charging process is constant; when the lead-acid battery is fully charged, if it is still charged continuously with a large current, the service life of the lead-acid battery will be greatly reduced, and some unpredictable failures may occur

Method used

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  • Lead-acid battery fast charging control circuit

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Embodiment Construction

[0011] The lead-acid battery fast charging control circuit of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0012] Such as figure 1 As shown, the lead-acid battery fast charging control circuit of the present invention includes an AC power supply 1, a rectification filter circuit 2, a first step-up / down module 3, a second step-up / down module 4, a lead-acid battery 5, and a pulse trigger circuit 6 , a first comparator 7, a second comparator 8, a switch circuit 9 and a MOS tube.

[0013] Do not connect AC and lead-acid battery 5, connect direct current VMAX at the connection end of lead-acid battery 5, the voltage value is the maximum charging voltage of lead-acid battery 5, adjust variable resistor R7 so ​​that V4 is a voltage value; then change the direct current The voltage value is V1 (such as the voltage of the lead-acid battery 5 is 12V, then the value is 11.5V), and the variable resistor R3 is adjusted to...

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Abstract

The invention relates to a lead-acid cell quick charge control circuit. The lead-acid cell quick charge control circuit comprises a power supply, a rectification filter circuit, a first step-up / step-down module, a second step-on / step-down module, a lead-acid cell, a pulse trigger circuit, a first comparator, a second comparator and an MOS (metal oxide semiconductor) transistor. The lead-acid cell quick charge control circuit can control charging of the lead-acid cell, namely, start a quick charge mode when the lead-acid battery needs charging, and stop the quick charge mode and enter a floating charge mode when the lead-acid cell is fully charged.

Description

technical field [0001] The invention relates to a control circuit, in particular to a fast charging control circuit for a lead-acid battery. Background technique [0002] Generally, the charging of lead-acid batteries is uncontrollable, and the charging process is constant; when the lead-acid battery is fully charged, if it is still charged continuously with a large current, the service life of the lead-acid battery will be greatly reduced, and some unpredictable failures may occur. Contents of the invention [0003] The object of the present invention is to provide a fast charging control circuit for lead-acid batteries that is simple, controllable, safe and stable. [0004] In order to solve the above technical problems, the lead-acid battery fast charging control circuit of the present invention includes a power supply, a rectification filter circuit, a first step-up / down module, a second step-up / down module, a lead-acid battery, a pulse trigger circuit, and a first com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/02
CPCH02J7/045
Inventor 陈浩唐肖敏
Owner 上海力申科学仪器有限公司
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