文档介绍：-1- 模电课程设计报告课题名称: 信号波形的产生与滤波电路专业班级: ******* 学生姓名: ** 学生学号: ********** 指导教师:韩焱青设计时间: 2012 年6月 13日-2- 摘要方波信号是一种应用极为广泛的信号,它在科学研究、工程教育及生产实践中的使用也非常普遍。它通常作为标准信号,应用于电子电路的性能试验或参数测量。另外, 在许多测试仪中也需要标准的方波信号检测一些物理量。方波产生电路可以由迟滞比较器和 R、C基本回路构成,也可以由 555 定时器加一些电阻、电容组成外围电路构成。滤波电路也在电子电路中也有较大的应用,例如人们往往要得到某种特定频率的信号,而实际输入的包含有各种频率的信号,这时就要用到与之相对应的滤波电路滤去不需要频率的信号,而保留人们想要频率的信号。构成滤波电路的有低通滤波、高通滤波及带通滤波电路,本设计是基于二阶带通滤波电路的一个中心频率为 10KHZ 的滤波电路。关键字:二阶无线增益带通滤波电路;中心频率; 迟滞比较器; Abstract Square wave signal isa kind of application of the signal, it is widely in scientific research, engineering education and the use of the production practice and is very popular. It is usually used as standard signal, used in electronic circuit performance test or parameter measurement. In addition, in many tester are required in the standard square wave signal detection some physical quantities. Produced by square wave circuit can parator and R C, basic circuit structure, by555 the timer add some resistance, capacitance ofa peripheral device. Filter circuit is also in electronic circuits also have larger applications, such as people tend to get a specific frequency of the signal, but the actual input contains various frequency signal, would then use with the corresponding filter circuit to filter the frequency of the signal don't need and keep that people want to frequency signal. Constitute the filter circuit with low pass filter high-pass filter, and bandpass filter circuit, the design is based on second-order band-pass filter circuit ofa center frequency for 10 KHZ filter circuit. Key words: Second order wireless gain bandpass filters circuit;Center frequency ; parator; -3- 第一章绪论设计目的由于在课堂上学****的都是一些纯粹的理论知识,没有在实践中得到检验,始终无法令人信服。本设计基于对滤波电路的基础上对信号处理做了一个简单大设计,可实现当输入一个方波时,输出同频率的正弦波,完成方波到正弦波的转化,通过设计可以将所学的电子技术知识运用到实际上,加深对滤波电路、方波产生电路的理解,锻炼自己的动手能力,培养团队合作精神。设计内容(1)了解信号波形的产生于滤波电路的基本原理; (2)完成信号波形的产生与滤波电路(设计并分析计算单元电路,对元器件进行选型); (3)绘制信号波形的产生与滤波电路电路图; (4)组装调试滤波电路; (5)进行实物检查,设计答辩并完成设计报告; 设计要求 1、在教师指导下完成信号波形的产生与滤波电路设计 2、组装、调试信号波