语音放大器电路设计

语音放大器电路设计

ID:17632662

大小:828.00 KB

页数:21页

时间:2018-09-04

语音放大器电路设计_第1页
语音放大器电路设计_第2页
语音放大器电路设计_第3页
语音放大器电路设计_第4页
语音放大器电路设计_第5页
资源描述:

《语音放大器电路设计》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库

1、-21-摘要设计一个对弱的语音信号具有放大能力的放大器电路,其规格如下:1)输入信号源为话筒舒服,幅度大小为0~5mV.2)最大输出公里为8W。3)负载阻抗为8Ω4)频带宽度BW=80~6000Hz。5)非线性失真系≤3%(在BW内满功率下)。6)设计具有音调控制功能。在1KHz为0dB;在100HZHE10kHz处又±12dB的调节范围。通过多级放大的方法进行设计和对各级的放大倍数调整,从而得到一个可以消除噪声影响的语音放大系统,要求效率高,对原声的失真程度小,输出的功率大。语音放大器可以把一些弱小的声音信号进行放大,达

2、到能够清晰辨认其内容。目录一、语音放大器的方案设计···················4二、单元电路的设计·····························52.1——前置放大级的···································52.2——音调控制器设计设计·····································62.2.1——低频工作时原件参数计算···························72.2.1.1——低频提升·················

3、······················92.2.1.2——低频衰减·······································102.2.2——高频工作时的原件计算·····························112.2.2.1——高频提升·······································132.2.2.2——高频衰减·······································142.3——21-21-摘要设计一个对弱的语音信号具有放大能力的

4、放大器电路,其规格如下:1)输入信号源为话筒舒服,幅度大小为0~5mV.2)最大输出公里为8W。3)负载阻抗为8Ω4)频带宽度BW=80~6000Hz。5)非线性失真系≤3%(在BW内满功率下)。6)设计具有音调控制功能。在1KHz为0dB;在100HZHE10kHz处又±12dB的调节范围。通过多级放大的方法进行设计和对各级的放大倍数调整,从而得到一个可以消除噪声影响的语音放大系统,要求效率高,对原声的失真程度小,输出的功率大。语音放大器可以把一些弱小的声音信号进行放大,达到能够清晰辨认其内容。目录一、语音放大器的方案设

5、计···················4二、单元电路的设计·····························52.1——前置放大级的···································52.2——音调控制器设计设计·····································62.2.1——低频工作时原件参数计算···························72.2.1.1——低频提升·······································92

6、.2.1.2——低频衰减·······································102.2.2——高频工作时的原件计算·····························112.2.2.1——高频提升·······································132.2.2.2——高频衰减·······································142.3——21-21-功率输出级的设计···································1

7、42.3.1—确定电源电压·······································162.3.2——功率输出级的设计·································162.3.2.1——输出晶体管的选择·······························162.3.2.2——复合管的选择···································172.3.2.3——电阻`R12的估算·····························172.3.2.4——

8、确定偏置电路···································172.3.2.5——反馈电阻的决定························18三、语音放大器设计电路的总电路图·······19四、设计结论····································

当前文档最多预览五页,下载文档查看全文

此文档下载收益归作者所有

当前文档最多预览五页,下载文档查看全文
温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,天天文库负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。