基于网络音频系统的数字功放的设计

Design of Digital Power Amplifier Based on Network Audio System

基于以太网的网络音频传输技术是专业音频行业的技术亮点,基于该技术生产的功放机、音频平台和信号处理器、扩声控制系统等成为了新的技术热点。文中提出的一种利用CobraNet技术所设计的数字功放,用于数字网络音频传输系统中,它包含四个组成部分:输入级,放大级,输出级以及信号校正电路,实现了模拟音频信号高效、低失真的放大。

The network audio transmission technology based on Ethernet is the technical highlight of the professional audio industry.The power amplifier,audio platform,signal processor and sound reinforcement control system based on this technology have become a new technical hotspot.In this paper,a digital power amplifier designed by CobraNet technology is used in the digital network audio transmission system.It includes four components:input stage,amplification stage,output stage and signal correction circuit,which realizes the efficient and low distortion amplification of analog audio signal.