基于LM4766的音频功率放大器设计

Design of Audio Power Amplifier Based on LM4766

介绍音频功率放大器的原理与设计,讨论了主要元器件及参数的选择。整个电路主要由稳压电源、前置放大器、功率放大器共三个部分构成。其中LM4766是一立体声音频放大器电路,采用双电源应用电路。电路结构简单,并给出了测试结果,实验结果表明该功率放大器在带宽、失真度、效率等方面具有较好的指标。

This paper discusses the principle and design of the audio power amplifier and the choice of the main components and parameters. The entire circuit is mainly comprised of regulated power supply, preamplifier and power amplifier, among which LM4766 is a stereo audio amplifier using dual power supply application circuit. The structure of this circuit is simple. The experimental results show that the power amplifier performs well in such aspects as bandwidth, distortion factor, efficiency, etc.