Design of audio amplifier
Zhang Wen-jua · Electronic Design Engineering · 2015
According to traditional audio amplifier design shortcomings, combined with modern electronic technology, using audio amplification IC, an approach of the audio amplifier is designed. Firstly,analysis the principle and circuit of the audio amplifier.then introduces the power circuit design, power rectifier, power filtering in detail; preamplifier design; PA design.At last, debugging the major technical indicators such as the effective frequency, THD, the rated output power, input impedance, output impedance etc. Debugging results showed that the main technical indicators have reached the design requirements, which has a good value for money, ideal for audio output.