汽车故障诊断与D类音频放大器

摘要：本应用笔记介绍了如何运行的MAX13300/MAX13301/MAX13302汽车D类放大器的诊断。

Maxim>AppNotes>AmplifierandComparatorCircuitsAudioCircuitsAutomotiveKeywords:MAX13300,MAX13301,ClassD,ClassDaudio,highpoweraudio,automotiveaudio,automotiveClassD,automotiveClassDMar31,2011audioAPPLICATIONNOTE4943DiagnosingAutomotiveFaultswithClassDAudioAmplifiersBy:JonWallaceAbstract:ThisapplicationnoteexplainshowtorunthediagnosticsfortheMAX13300/MAX13301/MAX13302automotiveClass-Damplifiers.IntroductionTheMAX13300automotiveClassDaudioamplifiersincorporatemanybuilt-indiagnosticstohelplocatefaultsinthesystem.Theamplifiersdetectthefollowingfaultconditionsonthespeakeroutputswhenthereisnoaudiopresent.Sinceaudiomaynotbepresentduringthesetests,thosetestsaretypicallyrunonce