桂林电子技大学信息科技学院2013级模拟电子电路实训(功放).doc

桂林电子科技大学信息科技学院 《模拟电子技术》实训报告 学 号 姓 名 指导教师： 郝建卫 易艺 梁晓梅 年 月 日 实训题目：单声道功率放大器的设计与制作 1 整机设计 1.1 设计任务及要求 使输出的音频达到较好的性能指标，希望在一定负载条件下输出功率尽 可能的大，输出信号的非线性失真要小，效率要高，同时还要有高、低音频的调 整以满足不同的音源和个人爱好的要求 从方框图可知，单声道功率放大器音调控制、音量控制、功放 和喇叭部分组成。由音调控制 电路对音频信号中的高频低频部分进行提升或衰减补偿以改善最后输出的音质 效果。最后通过音量大小的控制输入到功放进行功率放大以推动喇叭发声。 [1]?AltumDesigner原理图与PCB及仿真．机械工业出版社，?2004.1?[2]?李长俊．模拟电子技术．北京：科学出版社，2010??[3]?李长俊．模拟电子技术．学习指导?实验与实训教程．北京：科学出版社，2011?[4]?华成英、童诗白?模拟电子技术基础(第四版)．北京：高等教育出版社，2006.5 family 7 being killed there. Zhu Xi forces, hundreds of people were killed and 19 captured fighters of their respective Corps Youth pioneers, opening of a temple by the Japanese military in ocean a thick wire through the Palm of each hand, pulled a long, red with the blood of the Earth. The face of the enemys power, captured 19 young men and women, none have ever been intimidated, no yield. Escort of the Japanese captain, kept shouting vicious Zhu Xi forces, an enemy of the Imperial Army, big bad! Japan helps you build a new order in East Asia, you see, as long as you repent and regret, in favour of Japan-China goodwill, is overkill. Enemy of 18 year old twin sisters are hypocritically surnamed Yao said: our youth, a lot of things are waiting for you, how can you quickly leave the world. In the face of enemy threats, seduce, 19 soldiers die, shouting: down with Japan imperialism! long live the nation! Ictus of times, fell to the enemy under the butchers knife. 　　He (she) for the liberation of the Chinese nation, the beauty of youth to the liberation cause of the Chinese nation, motherland cavity blood sprinkled on the ground. Zhong Jia DUN bloody battle, belongs to a group of Zhu Xi forces, two missions, Chen Qi, Zhu Jiemin Brigade Brigade suffered heavy casualties. Chinese Communist Party Member Xu, Xu Quansheng, head of three Wang Yulin and other sacrifices in the battle. Zhong Jia DUN battle casualties, Zhu Xi withdrew the