数电课程设计报告-电子流水灯

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1、电子技术课程设计报告设计题目：电子流水灯院（部）：物电学院专业班级：电科14-1学生姓名:学号:指导教师:20目录摘要·························································3一、选题与需求分析············································4二、总体设计·················································42.1系统原理框图··········································42.2各模块

2、的组成及功能分析································42.3实验方法··············································42.4简要原理··············································5三、详细电路设计···············································53.1脉冲产生电路·········································53.2复位电路··············20······

3、·························83.3分频电路·············································93.4移位控制电路·········································113.5显示部分·············································12四、电路图及工作原理··········································13五、元器件清单·······································

4、·········15六、PCB实物图·················································15七、设计总结··················································167.1电路的特点和方案的优缺点·····························167.2心得体会·············································16八、参考文献20·················································

5、·17摘要电子技术实验是一门重要的实践性技术基础课程。开设本课程的目的在于使学生理论联系实际，在朱老师的指导下完成大纲规定的实验任务。通过实验熟悉电工.电子技术的应用中常用的设备和电子器件，熟悉常用仪器的使用方法，掌握正确记录、处理实验数据、绘制曲线、分析实验结果的方法，从而开发学生分析问题或解决问题的能力。流水彩灯控制器在我门日常生活中有重要的运用，如广告牌的设计和节日彩灯的设计都能运用到它的原理。本次设计的流水彩灯控制器是其中较简单的，但这是进行复杂设计的基础。本次课程设计要设计一个流水彩灯控制器（用7只发光二极管显示，至少三种工作方式）。首先要分析设计要求，

6、从要实现至少三种工作方式入手推导出要使用的芯片。在逻辑功能上是由脉冲产生电路、复位电路、分频电路、移位控制电路，以及显示电路等五部分组成；另设置了脉冲工作指示和左右移动工作指示电路，由LM555定时器组成时钟发生电路，为整个电路提供所需的时钟信号CP。按钮开关启动全电路的清零电路，电路中所有芯片的清零端接在一起，当按钮动作，直接清零，使电路恢复初始状态。分频电路由74LS161与74LS112组成，74LS161对脉冲进行十六分频。经实验验证，所设计的流水彩灯控制器能完成题目要求。关键词:时钟脉冲；分频；555定时器；拨码开关；20一、选题与需求分析（一）题目：流

7、水彩灯控制器（二）设计任务A.用所提供的芯片设计一个流动彩灯控制器；B画电路图，进行仿真调试；C在PCB板子上焊接电路，进行实际电路调试；（三）设计要求A输出为7路LED灯；B要求能实现左移右移功能，左右移自动切换；C移动速度约为260ms一位；D每个循环左移和右移的步数和变化规律自定；、（四）开发工具Multisim二、总体设计2.1系统原理框图流水灯的20设计可先对几个独立的功能模块进行设计，每一个模块完成特定的功能,再把它们有机的组织起来构成一个系统完成彩灯控制器的设计。系统可由四个模块组成，它们分别是：时钟电路、单种码产生电路、拨码开关控制电路、数据输出，

8、设计框图如