基于otl音頻功率放大器設(shè)計 畢業(yè)設(shè)計-文庫吧
2025-05-14 08:59 本頁面
【正文】 ier of the transistor and integrated operational amplifier, also have album into power amplifier circuit, etc. In this paper, the design is A OTL power amplifier, the amplifier adopts TDA2030 integrated high fidelity audio frequency power amplifier chip, TDA2030 audio amplifier is the most monly used to audio power amplifier, power output is more than 10 w, frequency response of 10 ~ 1400 hz ac, output current peak value maximum can reach A, the internal circuit includes input level, middle level and output level, and short circuit protection and overheating protection, safe and reliable to ensure that the work of the circuit. Circuit adopts is single output power supply. The physical product using printed circuit board PCB manufacture (single panel) and the good performance meet the design requirements and appearance. Secondly, with multisim software simulation of OTL power amplifier. According to the example and has given the original parameters of the circuit, and use multisim software to simulate the circuit, and carries on the static analysis, dynamic analysis, show that wave diagram, design and calculation data, etc to acplish achieve the whole process of OTL power amplifier. 目錄 第一章 前言 ............................................................ 1 第二章 OTL 功率放大器設(shè)計 ............................................... 1 第一節(jié) 設(shè)計思路 ..................................................... 1 第二節(jié) 設(shè)計方案 .................................................... 1 第三節(jié) OTL 功放各級的作用和電路結(jié)構(gòu)特征 ............................. 1 第四節(jié) 簡要原理分析 ................................................ 2 第三章 選擇器件及參數(shù)計算 .............................................. 5 第一節(jié) 功率放大器芯片 TDA2030 介紹 ................................... 5 第二節(jié) 參數(shù)及功率、效率的計算 ............................................ 7 參數(shù)計算 ........................................................... 7 功率和效率的計算 ................................................... 7 第四章 實物電路安裝調(diào)試及使用 .......................................... 9 第一節(jié) 元件的安裝 ................................................... 9 第二節(jié) 電路調(diào)整與測試 .............................................. 10 通電前調(diào)試 ........................................................ 10 元件的調(diào)試 ........................................................ 11 第五章 總結(jié) ............................................................ 1 第六章 參考文獻 ........................................................ 1 第一章 前言 OTL Output Transformerless 電路是 單端推挽式無輸出變壓器功率放大電路。通常采用單電源供電 ，從兩組串聯(lián)的輸出中點通過電容耦合輸出信號。過去大功率的功率放大器多采用變壓耦合方式 ，已解決阻抗變換問題，使電路得到最佳負值。但是這種電路有體積大、笨重、頻率特性不好等缺點，目前已較少使用。 OTL 電路不再用輸出變壓器 ，而采用輸出電容與負載連接的互補對稱功率放大電路，使電路輕便、適于電路的集成化，只要輸出電容的容量足夠大，電路的頻率特性也能保證。是目前常用的一種功率放大
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