qam傳輸系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)畢業(yè)設(shè)計(jì)

1、韶 關(guān) 學(xué) 院畢 業(yè) 設(shè) 計(jì)題 目： 目：音響放大器設(shè)計(jì)學(xué)生姓名： 學(xué)生姓名： 學(xué) 號(hào)： 號(hào)：09101071040院 （系）： （系）：物理與機(jī)電工程學(xué)院 電子系專 業(yè)： 業(yè)：電子信息科學(xué)與技術(shù)班 級(jí)： 級(jí)：2009 級(jí) 1 班指導(dǎo)老師姓名及職稱： 指導(dǎo)老師姓名及職稱：起止時(shí)間： 起止時(shí)間： 2012 年 9 月 —— 2013 年 5 月Abstract Abstract：Audio technology

2、development history can be divided into the electron tube, transistor, integrated circuits, MOSFET in four phases. Long time, high-quality audio amplifier class, restricted to category a (group a) and AB class (b

3、 class). Due to the past only tube devices, category b (b) tube amplifiers produce distortion even when the public broadcasting are difficult to be accepted. All claim to be high fidelity amplifiers are work

4、ing in push-pull class a (group a).With the emergence and development of semiconductor device, amplifier design got more freedom. Amplifier for category is not limited to class a (group a) and AB class (b class), t

5、here are more types of amplifiers. However, it should be noted that, for the time being, work categories for audio power amplifier, class a (group a), the AB class (b class) and category b (b) three types of se

6、miconductor amplifier of amplifier is still covered with the vast majority of.This design uses design amplifier transistor devices, and advantage to this method is that the transistor amplifier incorporates a fine and at