提出了一种以STC89C52单片机为核心的直流电压与纹波测量系统,给出相关的软件程序设计.该测量系统主要包括量程选择、电压分离、A/D采样以及数据处理和显示电路,大大提高测量精度.在实际应用中,系统对某些工业现场的直流电压进行实时反馈,可以有效地对纹波进行实时监测.%A DC voltage & ripple measuring system based on STC89C52 is presented, and the associated software is provided. This measuring system used range selection, voltage isolation, A/D sampling, data processing and display circuit to improve the measurement accuracy greatly. In practice, DC voltage can be performed a real-time feedback by this system and the ripple voltage can be monitored effectively.
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