基于单片机的毫伏表的设计目录 绪论..........................................................................2第 1 章系统方案的选择与论证...............................................................................................31 基本方案的论证与选择........................................................................................................31.1 放大电路方案选择.....................................................................................................31.2 交直流转换电路方案选择.........................................................................................41.3 模数转换器件选择.....................................................................................................51.4 显示模块方案选择.....................................................................................................62 总体方案论证........................................................................................................................6第 2 章 硬件电路设计.............................................................................................................72.1 衰减电路设计.............................................................................................................72.2 滤波电路设计............................................................................................................82.3 放大电路设计.............................................................................................................92.4 真有效值变换电路设计.............................................................................................92.5 模数转换电路设计...................................................................................................112.6 单片机控制电路设计...............................................................................................172.7 直流稳压电源设计...................................................................................................22第 3 章 软件设...
