西华大学电气信息学院智能化测控应用系统设计报告目录1前言······················································································································12总体方案设计········································································································22.1方案比较·········································································································22.1.1方案一········································································································22.1.2方案二········································································································32.1.3方案三········································································································32.2方案论证·········································································································42.3方案选择·········································································································43单元模块设计········································································································53.1各单元模块功能介绍及电路设计·······································································53.2各单元模块······································································································53.2.1电压电流采样模块设计················································································53.2.2按键和复位模块设计···················································································63.2.3数码显示电路模块设计················································································73.2.4电源电路设计·····························································································83.2.5基准电压电路设计············································...