目录 第一章 设计目的及技术要求·····························1 第一节 设计概述····································1 第二节 技术要求····································1 第三节 设计目的····································1 第二章 电路方案的选择·································2 第一节 解读技术要求································2 第二节 确定方案····································3 第三章 电源电路设计···································4 第一节 电源电路原理图·············