简易电子琴wps

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1、电子课程设计报告题目名称：简易电子琴姓名：计国春专业：应用电子班级学号：07904110同组人：胡薛城指导教师：高建波南昌航空大学高职学院2009年1月7日23摘要在刚刚进入2009年的气息下！到处都在处于经济危机的阴影下！但是这个电子行业觉感觉到了有一点复苏的气息！电子这个行业在各种高端技术方面已经站稳了它的脚跟，但还是有待提高。而在这个经济繁荣的社会上，高端技术已经林林树立！而作为钢琴来说电子琴已经比普通钢琴更受消费者喜欢和接受!特别是青少年,所以以后市场占有率肯定是空前的繁荣！就这个简易电子琴

2、它主要是由NE555定时器以及一些电阻、电容、开关、和LM386芯片串并联组成!基本设计要求是由NE555产生频率振荡，主要采取不同的电阻来控制频率、再由不同的频率来控制不同的音质啊！制作过程中发现了一些问题，通过共同的分析研究得到解决，此次的课程设计巩固了前阶段所学的理论知识，增强了动手实践能力。关键字：NE555LM386频率简易电子琴23目录前言····································································1第一章简易电

3、子琴概要设计··············································2第二章简易电子琴的详细设计2.1设计方案一·····················································62.2设计方案二·····················································72.3设计方案选择···················································8第

4、三章简易电子琴设计电路、参数计算与引脚图3.1简易电子琴控制电路··············································93.2555芯片引脚图··················································93.3LM386(小功率集成放大器）引脚图······························10第四章简易电子琴的系统组成及器件工作原理234.1脉冲形成：有电阻及555形成的多谐振荡器组成及工作原理······

5、··································································114.2驱动电路：由LM386实现，组成电路与工作原理·········································································14第五章实验调试及测试结果分析············································17设计与体会结论················

6、············································18参考文献··································································19附录一····································································20附录二··························································

7、···········21附录三····································································21前言23随着当代科学技术的发展，电子产品在人们的日常生活中占据着越来越重要的地位。电子琴作为其中的一个典型代表，引领着许多孩子进入音乐的殿堂。因此，我们选择了简易电子琴这个题目来制作，因为它不仅能够提高我的实践动手能力，还与实际生活有着紧密地联系。脉冲与数字电路是一门实践性很强的课程，而此次课程设计依据的理论基础是脉冲与数字电路的

8、相关知识。其主要目的是通过本课程的培养，启发学生的创造性思维，进一步理解数字系统的概念，掌握小型数字系统的设计方法，掌握小型数字系统的组装和调试技术，装握查阅有关资料的技能。基本任务是设计一个小型数字电子系统，基本要求是组装一个小型电子产品，一般要求焊接，检验再检验。在电子课程设计的过程中，系统的概念十分重要，熟悉从系统的层次分析问题、解决问题的方式。基本方法除了实验课中要求掌握的功能测试、故障排除等各种一般方法以外，要特别注重使用“电路拼装”的方法。课程设计的一般步