自動(dòng)增益控制放大系統(tǒng)設(shè)計(jì)畢業(yè)論文-展示頁
2024-09-11 11:45本頁面
【正文】 pronunciation signals to pass. Because the frequency band scope of the pronunciation signal is 300 Hz3400 Hz, so the frequency band scope of our electric circuit should be designed within 300 Hz3400 Hz. And the electric circuit should realize the closed loop adjustment which increases, it may realize the automatic control through this electric circuit which increases when the tonic train signal is strong automatically that it can reduce the multiple of the amplifier, and when the signal is weak that it can automatically increase the amplifier the multiple, so that can realize the volume with automatic control. This topic also introduced in the concept principle of the automatic gain control as well as to automatically increases the system every part of principle of work the detailed introduction, and it pays attention to the question to the test result of this system .Finally we have make some analysis to the design. KEYWARDS： Amplifier； Automatic Gain Control； AGC； Voltage follower； Filter 安徽理工大學(xué) 畢業(yè)設(shè)計(jì) 目 錄 摘 要 .................................................................... I 第 1 章 引言 ............................................................ 1 第 2 章 自動(dòng)增益控制 .................................................... 2 自動(dòng)增益控制 ....................................................... 2 自動(dòng)增益控制電路（ AGC）存在的意義 ............................ 2 自動(dòng)增益控制的基本概念 ....................................... 2 自動(dòng)增益控制的原理 ........................................... 2 自動(dòng)增益控制放大器 ............................................. 4 本課題的研究內(nèi)容 ............................................... 4 第 3 章 自動(dòng)增益控制放大器的電路設(shè)計(jì) .................................... 5 方案選擇 ........................................................... 5 壓隨器工作原理 ..................................................... 7 整流電路工作原理 ................................................... 7 濾波電路工作原理 ................................................... 8 增益控制工作原理 ................................................... 8 電路元器件選擇 ..................................................... 9 運(yùn)算放大器 ................................................... 9 場效應(yīng)管選擇 ................................................ 10 其他元器件選擇 .............................................. 10 第 4 章：放大器電路的調(diào)試及實(shí)驗(yàn)結(jié)果 ....................................... 12 放大器電路的 調(diào)試 .................................................. 12 實(shí)驗(yàn)結(jié)果及存在問題 ................................................ 16 總結(jié) ..................................................................... 17 致謝 ..................................................................... 18 參考文獻(xiàn) ................................................................. 19 附錄 ..................................................................... 20 元器件列表 ........................................................... 20 仿真原理圖 ........................................................... 21安徽理工大學(xué) 畢業(yè)設(shè)計(jì) 1 第 1 章 引言 隨著微電子技術(shù)、計(jì)算機(jī)網(wǎng)絡(luò)技術(shù)和通信技術(shù)等行業(yè)的迅速發(fā)展，自動(dòng)增益控制電路越來越被人們熟知并且廣泛的應(yīng)用到各個(gè)領(lǐng)域當(dāng)中。由于語音信號的頻帶范圍為 300hz3400hz,所以該電路所應(yīng)設(shè)計(jì)的頻帶范圍應(yīng)在 300hz3400hz 之間，并且電路應(yīng)該實(shí)現(xiàn)增益的閉環(huán)調(diào)節(jié)，通過此電路可以實(shí)現(xiàn)增益的自動(dòng)調(diào)整，以至于使音頻信號強(qiáng)時(shí)自動(dòng)減小放大器
畢業(yè)設(shè)計(jì)相關(guān)推薦
鄂ICP備17016276號-1