The Design And Implementation Of The Power Amplifier Blu-ray Player

With the gradual improvement of the people for family audio-visual experience requirements,network bandwidth's expanding,a variety of storage media and lower prices,as well as the continuous development of related technologies of various kinds of audio and video,a blu-ray player can no longer meet the needs of people's Audio-visual requirements.The power amplifier blu-ray player designed in this article,it not only has generally blu-ray player function,but also has the function that the 5.1-channel audio borne power amplifier,satisfy the people's demand for quality and sound quality.through the analysis for the current mainstream audio and video technology and the characteristics of the various types of audio power amplifier,considering the advantages of type D digital power amplifier,such as high efficiency,occupy small volume,no deep negative feedback,reduce the high frequency phase distortion and high conversion efficiency,finally established the design thought which combine type D digital power amplifier with blu-ray player.Firstly,establish the framework of the whole system,then divide the whole system into decoding module and the design of audio power amplifier module of two parts to elaborate.First,the use of expertise is described.Then it discusses the realization of the function of the two parts.Lastly,it's the performance test part.Through the testing of the important parameters such as amplitude frequency response of audio equipment,signal-to-noise ratio,distortion rate and so on,to complete the design of the power amplifier blu-ray player,which can play blu-ray discs,both USB file and Internet audio and video,and other video source input,as well as the 5.1-channel power output.