高保真音响设计制作设计

摘  要

跟随民族经济的日渐急速开展的,科技的开展,这使布满消受到比物资消受更多的东西。,也需求更多的回想消受。。其中之一:乐谱,这是一种陈旧的消受版式。。而高保真音响执意感激乐谱的物资根底。

本文将以本钱效益为导向。,思索根本高保真合格证书,符合的年老人爱好者的高保真功率扩大者的议论。由浅到深,组合艺术品图示做准备了高保真音响的互相牵连知,详细说明引见了专门功率扩大者的任务航线。。同时还引见了所有可能的首要CMOS 芯片本身的性质及方法去设计这事体系来绥靖必然的合格证书。论文尽量浅显地来引见高保真音响,让全部地能从中学到根本的高保真音响的知的同时,沉思方法引起高保真音频扩大者。

在技术层面,该体系首要由集成CMOS 芯片填写。,因而就人家年老的被恶魔附者来说这是匹敌复杂的。,在这事设计中,NE55 32(先前是运算扩大者的天子)被应用。,典型增益为20分贝;以NSC公司LM1036为基调CMOS 芯片,连续流把持使增压找头的听觉的把持。后级功率扩大者采取NSC COM的圣典CMOS 芯片LM1875CMOS 芯片。,四片LM1875用于衔接左、右传球。,达到预期的目的更大的力气和反而更的回响比分。

在论文的后半一份遗产,理睬的报告了引起和调试中对决的软件、武器装备成绩及分解物,高菲德利工作指数国家标准测量方法。这些可以作为生产航线正中鹄的少量的提词和T的根底。。

关键词:高保真;集成CMOS 芯片;BTL;使一致把持

Abstract

With the development of our country’s economy and the modern 技术。 People no –longer just enjoy the happy brought from material, they also learned to enjoy the spiritual 东西。 For instance: Music, an old fashion of the 消受。 And 高保真音响 保真) audio system is the very suitable intermedia for enjoying 乐谱。

So this dissertation focused on the Hi-Fi amplifiers for those primary audiophiles on this 音节。 It tried to let people cost less and at the same moment , get enough enjoyment from Hi-Fi amplifiers and satisfy those basic standards of Hi-Fi 体系。 This dissertation presented the ideas from easy to hard, and described the relative knowledge of the Hi-Fi audio system with those graphics and 为设计情节。 It also wrote about the details of the whole working process of this design 逐渐地。 This dissertation also introduced those characteristics of those chips used in my design, and how to realize those system’s targets given .The dissertation tried to introduce Hi-Fi audio system commonly,and let  you learn some basic knowledge of this Hi-Fi system, at the same time , eventually learn how to accomplish a Hi-Fi audio 扩大者。

Refer to the technology, IC was used to finish this graduate design, because it”s relatively easier for primary audiophiles to design a audio 扩大者。 The pre-amp is NE5532, which was ever called as “The KING of amplifiers” ,and its typical gain is 20dB;LM1036 produced by 国家安全委员会 Semiconductor 公司) was used here for tone adjustment 集成环形道。 And LM1036’s tone control can be controlled by changing the DC control 使增压。 The second amplifier IC is LM1875, also made by 国家安全委员会。 It is very classical . Four LM1875 chips were used to make a 抵消的  Transformer 少) circuit of  each channel to achieve more power and  to make the whole system’s timbre to be 反而更。

The last paragraph of this dissertation, I mainly introduce some software and hardware problems I met during making the board and debugging, and how I solved those 成绩。 Also I presented you the national standard test methods for audio amplifier 性质。 Hope these can be your hints and help during your executing for audio 扩大者。

Key words: Hi-Fi; Integrated Circuit; BTL; Tone control

目    录

小引1

1  高保真音响体系1

1.1 高保真音响体系明确1

1.2 高保真音响体系结合2

2 高保真功率扩大者3

2.1 功率扩大者的典型3

2.2 高保真功率扩大者首要合格证书4

3  功率缩小器电源8

3.1 功率扩大者综述8

3.2 功率扩大者集会8

3.3 改正滤波环形道10

3.4 电压稳定环形道13

4 谋划能抵御与论述14

4.1 设计销路14

4.2 谋划能抵御14

4.2.1级缩小后谋划的选择14

4.2.2前置扩大者谋划的选择14

4.2.3腔调CMOS 芯片谋划选择15

4.2.4供电谋划的选择15

4.3 详细谋划论述15

4.3.1前置扩大者谋划15

4.3.2后级缩小谋划19

4.3.3功率扩大者谋划22

5 高保真功率扩大者板23

5.1 制板中应理睬的成绩23

5.2 压印经历24

5.2.1制板诉讼程序24

5.2.2 PROTEL99 SE经历总结25

5.2.3板创造中对决的成绩26

6 功率扩大者调试26

6.1 调试诉讼程序27

6.2 模块调试27

6.2.1电源调试27

2.2.2使一致模块调试27

62.3前置扩大者模块调试28

2.2.4后级扩大者模块调试28

6.3 片面调试28

7 高保真功率扩大者工作指数受考验29

7.1 工作指数受考验的必要性29

7.2 首要工作指数受考验29

7.3 受考验装置32

7.4 受考验意见32

8  总结33

8.1 终结程度33

8.2 技术优点33

8.3 技术缺陷33

8.4 双重情义33

谢  辞34

参考文献35

附  录36

阑尾1环形道示意图36

阑尾2 PCB 图39

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