一款自适应范围电压检测电路的设计  

Design of an Adaptive Range Voltage Detection Circuit

作　　者：李鹏飞[1] 刘锐 廖锦鹏 马小伟 栗冠媛 LI Pengfei;LIU Rui;LIAO Jinpeng;MA Xiaowei;LI Guanyuan(North China University of Technology,Beijing 100144,China;Beijing Institute of Metrology,Beijing 100029,China)

机构地区：[1]北方工业大学,北京100144 [2]北京市计量检测科学研究院,北京100029

出　　处：《现代信息科技》2023年第8期64-67,71,共5页Modern Information Technology

摘　　要：以电能质量分析仪设计项目为载体,针对电能质量分析仪在实际使用过程中测量不同幅值电压时需手动操作选择合适量程的问题,设计一款自适应范围电压检测电路。该电路可以根据输入电压信号的大小选择合适量程,并对输入信号进行相应倍数的自适应放大或缩小,确保放大或缩小的电压信号能够满足AD转换器的转换范围及精度要求的电压范围。Taking the power quality analyzer design project as the carrier,an adaptive range voltage detection circuit is designed to address the issue of manually selecting the appropriate range for measuring different amplitude voltages during actual use of the power quality analyzer.The circuit can select an appropriate range based on the size of the input voltage signal,and adaptively amplify or reduce the input signal by corresponding multiples to ensure that the amplified or reduced voltage signal can meet the conversion range and accuracy requirements of the AD converter voltage range.

关 键 词：信号检测 自适应缩放 电压转换 数模转换 

分 类 号：TP39[自动化与计算机技术—计算机应用技术] TP272[自动化与计算机技术—计算机科学与技术]