文档介绍：超外差收音机论文
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专科毕业设计科毕业设计( 2010 届)
题学专班学
目院业
超外差收音机设计物理与电子工程学院应用电子技术
级 07 应用电子技术(1)班号 0705510057 谭国飞杨金伟讲师 2010 年 3 月
学生姓名指导教师完成日期
台州学院毕业设计(论文)
超外差收音机设计
The Superheterodyne radio designs
学生姓名:谭国飞 Student: Tan Guofei 指导教师:杨金伟讲师 Advisor: Yang Jinwei
台州学院物理与电子工程学院
School of Physics & Electronic Engineering Taizhou University Taizhou, Zhejiang, China
2010 年 3 月
March 2010
I
台州学院毕业设计(论文)
摘要
随着科学技术的发展,调频收音机的应用十分广泛,尤其消费类占有相当的市场。从分离元件组成的收音机到由集成电路组成的收音机, 调频收音机技术已达到十分成熟的地步。从普通的调幅收音机到高级调频收音机,调频收音机以较高的技术含量和较高的音质得到了广泛的欢迎。本课题主要研究调频收音机的设计全过程,各部分电路的组成、作用、性能指标和工作原理。主要的设计思路是:由天线、输入回路、高频放大电路、混频电路、本机振荡电路、中频放大电路、鉴频电路、低频功率放大电路、扬声器组成。本课题设计成果,基本上满足要求,性能指标符合。本电路缺点的是音质噪声大,电路还有一点失真等等,还需改进。
关键词
超外差,收音机,变频器,功放级,前置低放级
II
台州学院毕业设计(论文)
Abstract
Along with the development of science and technology, FM radio, a wide range of applications, in particular, occupy a considerable consumer market. Separation ponents from position of the radios to integrated circuits formed by the radio, FM radio technology has reached a very mature stage. From the ordinary AM radio to high-FM radio, FM radio with a high technological content and high quality has been widely ed. The major research topics FM radio the whole process of design, the various parts of the circuit of position, role, performance indicators and work. The main idea is: from the antenna, input circuit, high-frequency amplifier circuit, mixer circuit, local oscillator circuit, IF amplifier, frequency discriminator circuit, low-frequency power amplifier circuit, ponent. The design results in this issue, basically meet the requirements, performance indicators in line. Disadvantage that the sound quality of this circuit noise large, the circuit there is little distortion, etc., require improvement.
Key words
Superheterodyne, radio, converter, power amplifier stage, pre-low-level class
III
台州学院毕业设计(论文)
目
录
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