1 多功能数字计时器设计 姓名：杨会章 学号: 1004220242 专业：通信工程 学院：电光学院 指导教师： 2021-9-15 2 目录 一、设计内容简介··················································3 二、电路功能设计要求··············································3 三、电路原理简介··················································3 四、各单元电路原理 1、脉冲发生电路 ···············································3 2、计时电路 ··················································4 3、译码显示电路················································4 5、校分电路····················································5 4、清零电路····················································6 6、报时电路 ···················································7 7、基本电路原理图··············································8 8、动态显示原理················································9 9、动态显示原理图················································10 10、波形图······················································11 五、实验中问题及解决办法··········································11 六、附录··························································12 1、元件清单 ···········································...
