- 0 - 目录 第1 章 交通信号灯控制器的总方案及总设计框图········································1 1.1 交通信号灯控制器的方案比较························································1 1.2 交通信号灯控制器的总方案选择····················································1 1.3 交通信号灯控制器的总设计框图····················································1第2 章 单元电路设计···········································································2 2.1 秒脉冲发生器的设计·································································2 2.1.1 秒脉冲发生器的功能及组成元件 ··············································2 2.1.2 秒脉冲发生器的工作原理 ························································2 2.1.3 秒脉冲发生器电路所用芯片的管脚图········································3 2.1.4 秒脉冲发生器电路元件参数的计算 ···········································4 2.2 定时器电路的设计····································································4 2.2.1 定时器的功能及组成元件························································4 2.2.2 定时器电路所用芯片的管脚图及其功能表 ·································5 2.2.3 定时器电路工作原理······························································7 2....
