【正文】 鎮(zhèn) 江 高 專 ZHENJIANG COLLEGE 畢 業(yè) 設 計 (論 文 ) 合并式功率放大器 Combined type power amplifier 系 名： 電子信息系 專業(yè)班級： 電氣自動化 學生姓名： 張濤濤 學 號： 100202240 指導教師姓名： 門宏 指導教師職稱： 教授 2022 年 05 月 目 錄 摘要 ........................................................ 錯誤 !未定義書簽。 引言 ........................................................................ 3 第一章 設計方案 .............................................................. 4 .......................................................... 4 .................................................. 4 ......................................................... 5 第二章 電路設計 .............................................................. 5 .......................................................... 5 .................................. 錯誤 !未定義書簽。 ........................................................ 7 ..................................................... 10 ................................................... 14 ................................................. 15 ..................................................... 20 ......................................................... 20 第三章 總 體仿真 ............................................................. 27 ............................................................. 27 ........................................................ 27 ................................................. 28 第四章 安裝與調試 ........................................................... 29 ....................................................... 29 ....................................................... 29 ......................................................... 29 總結 ....................................................................... 30 致謝 ....................................................................... 31 參考文獻 .................................................................... 32 附錄 ....................................................................... 33 1 合并式功率放大器 專業(yè)班級：電氣 101學生姓名：張濤濤 指導教師：門宏職稱：教授 摘要 合并式 功 率放大器的作用是給負載 RL 提供一定的輸出功率，當 RL一定時，希望輸出功率盡可能大，輸出信號的非線性失真可能小，且效率盡可能高。由于合并式電路采用直接耦合方式，為了保證電路工作穩(wěn)定，必須采取有效措施抑制零點漂移。為了獲得足夠大的輸出功率驅動負載工作，故需要有足夠高的電壓放大倍數。因此，性能良好的合并式功率放大器應由輸入級、推動級和輸出級等部分組成。 按照各級功能及技術要求，首先確定整機電路級數及電壓增益分配，而后分別選擇設計各級電路元器件及參數。從功放級向前逐級設計。但還是有不足之處；音頻的變化范圍較小，對電路 功能的分析有不夠詳細。 音頻功率放大器是一個技術相當成熟的領域，在現(xiàn)代音響普及中，得到很大的發(fā)展和應用。音頻功率放大器不僅僅是消費產品（音響）中不可缺少的設備，還廣泛應用于控制系統(tǒng)和測量系統(tǒng)中。 這款功放采用了典型的 OCL功放電路，為全互補對稱式純甲類 DC 結構，功放的每一級放大均工作于甲類狀態(tài)。輸入級和電壓放大級采用線性較好的沃爾漫電路，差分管及電流推動管分別為很出名的 K170、 J74（可用 K38 J109 孿生對管對換）對管和 K21 J77 中功率 MOS 管，功率輸出級為 2SC5200 和 2SA1943大 功率東芝管并聯(lián)輸出，功率強勁，驅動阻抗 2Ω的喇叭也輕松自如，毫不費力。綜合運用了我們前面所學的知識。設計完全符合要求 關鍵詞： 合并式 功率放大器 雙聲道 Combined type power amplifier Abstract Combined type power amplifier is the role of provides certain output to load RL, when RL is fixed, want to output power as high as possible, small nonlinear distortion of the output signal, and the efficiency is as high as possible. Because of the plicated circuit adopts a direct coupling mode, in order to guarantee the circuit work stable, effective measures must be taken to suppress the zero drift. In order to obtain the output 2 power is large enough to drive the load of work, so we need to have enough high voltage amplification factor. Therefore, the good performance of the bined type power amplifier by the input stage, promote the level and output level ponents. Audio power amplifier is a very mature technology field, Audio power amplifier is a very mature technology field, in the modern audio popularization, development and application of great. Audio power amplifier is not only consumer products (sound) equipment indispensable, but also widely used in the control system and the measurement the modern audio popularization, development and application of great. Audio power amplifier is not only consumer products (sound) equipment indispensable, but also widely used in the control system and the measurement system. This amplifier uses a typical OCL power amplifier, fullplementary symmetrical pure class a DC structure, power amplifiers are working at every level of magnification in a state. Input amplifier and voltage amplifier with better wall diffuse linear circuits, difference in charge and current drive pipe were very famous K170, J74 (K389, J109 twin tube on the power tube) and K214, J77 MOS, power output stage for 2SC5200 and 2SA1943 high power Toshiba tube parallel output, power strong, driving impedance 2 ohms speaker is relaxed, effortless. Comprehensive use of our previously learned knowled