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Double voltage sampling circuit of battery charging and discharging device

A technology of charging and discharging equipment and sampling circuit, applied in the field of dual-voltage sampling circuit, can solve the problem of battery overcharge or overdischarge, and achieve the effect of solving charging explosion, abnormal voltage protection, practical and simple principle.

Inactive Publication Date: 2018-01-26
SHENZHEN HYNN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a dual-voltage sampling circuit for battery charging and discharging equipment, which effectively solves the problem of battery overcharging or over-discharging caused by unstable sampling of the battery terminal voltage sampling line

Method used

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  • Double voltage sampling circuit of battery charging and discharging device

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Embodiment 1

[0020] Such as figure 1 As shown, a dual-voltage sampling circuit for battery charging and discharging equipment includes: a battery terminal voltage sampling input module 1, a PCB port voltage sampling input module 2, an ADC analog-to-digital conversion module 3, and an MCU control module 4. The battery terminal voltage The sampling input module 1 is connected to the ADC analog-to-digital conversion module 3, and the ADC analog-to-digital conversion module 3 is connected to the MCU control module 4, and the analog signal is converted into a digital signal by the ADC analog-to-digital conversion module 3, and then sent to the MCU control module 4 The PCB port voltage sampling input module 2 is directly connected to the ADC analog-to-digital conversion input port of the MCU control module 4 . Signal transmission is performed between the ADC analog-to-digital conversion module 3 and the MCU control module 4 through the SPI communication protocol.

[0021] The working method is ...

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PUM

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Abstract

The invention discloses a double voltage sampling circuit of a battery charging and discharging device. The circuit herein includes a battery end voltage sampling input module, a PCB port voltage sampling input module, an ADC module and a MCU control module. The battery end voltage sampling input module and the ADC module are connected. The ADC module and the MCU control module are connected. A simulation signal is converted to a digital signal through the ADC module. The digital signal is then transmitted to the MCU control module. The PCB port voltage sampling input module is in direct connection to a conversion input port of the ADC module which is carried by the MCU control module. The circuit herein has simple theories and is easy to implement, and is very practical and efficient in the field of voltage abnormality protection. The adding of the PCB port voltage sampling input module easily and effectively addresses the problems of over-charging and even charging-caused explosion of the battery due to inaccurate sampling of the battery end voltage sampling input module.

Description

technical field [0001] The invention relates to the technical field of battery charge and discharge, in particular to a dual-voltage sampling circuit for battery charge and discharge equipment during the battery formation process. Background technique [0002] In recent years, China's new energy industry has developed rapidly, and various battery manufacturers have sprung up like mushrooms. The prosperity of the industry is also accompanied by various problems, especially the safety issues in the battery production process that deserve special attention. Among them is a problem that must be paid attention to in the process of forming and dividing the battery. Loosening or falling off of the voltage sampling line during the formation and capacity separation of the battery will lead to inaccurate battery voltage sampling, which will cause overcharging or overdischarging, and eventually damage the battery or even cause the battery to explode, endangering the safety of life and ...

Claims

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Application Information

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IPC IPC(8): G01R19/25
Inventor 王守模
Owner SHENZHEN HYNN TECH CO LTD
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