摘要
针对原有直流稳压电源只能线性调节、线下使用的缺点,设计了可远程控制的直流稳压电源。基于物联网和嵌入式技术,通过MQTT协议对电源进行实时控制,由STM32高性能处理器和运算放大器TLV1805等器件组成控制电路,实现输出电压的步进调节。测试结果表明,该电源精度高、纹波小、操作简单,能够满足线上线下实验教学的需求,提高仪器设备的智能化水平。
In view of the shortcomings of traditional DC regulated power supply which can only be adjusted linearly and used offline,a remote controlled DC regulated power supply is designed based on the internet of things and embedded technology.The power supply is controlled in real time through MQTT protocol.The control circuit composed of STM32 high-performance processor and TLV1805 realizes the stepby-step regulation of output voltage.The test results show that the power supply has high precision,small ripple and simple operation.It can meet the needs of online and offline teaching and improve the intelligent level of instruments and equipment.
作者
张红宾
李晓晨
司敏山
Zhang Hongbin;Li Xiaochen;Si Minshan(College of Electronic Information and Optical Engineering,Nankai University,Tianjin,300071,China)
出处
《中国现代教育装备》
2023年第11期4-7,11,共5页
China Modern Educational Equipment
基金
南开大学2021年本科实验教学改革项目“电路基础(实验)”(编号:21NKSYSX12)
南开大学2022年自制实验教学仪器设备项目“虚拟仪器综合实验平台”(编号:22NKZZYQ09)
南开大学2022年实验课程教学改革项目“电路基础实验”(编号:22NKSYJC01)。
关键词
直流稳压电源
MQTT协议
远程控制
智能化
DC regulated power supply
MQTT protocol
remote control
intellectualization
