电路防过电压放大器输出

摘要：为了保护音频放大器及其他汽车电子电路直接连接到汽车电池的电压，一个偶然的事件，添加所示的电路（并联稳压器，二极管，和n沟道MOSFET在音频路径与每个系列）。

Maxim>AppNotes>AmplifierandComparatorCircuitsAudioCircuitsAutomotiveCircuitProtectionKeywords:automotivevoltageprotection,dualn-channelMOSFETs,shuntregulators,classABamplifiersJan06,2011APPLICATIONNOTE4555CircuitGuardsAmplifierOutputsAgainstOvervoltageAbstract:Toprotectaudioamplifiersandotherautomotiveelectroniccircuitsintheeventofanaccidentaldirectconnectiontothecarbatteryvoltage,addthecircuitryshown(ashuntregulator,diodes,andann-channelMOSFETinserieswitheachaudiopath).AsimilarversionofthisarticleappearedintheJuly7,2007issueofEDNmagazine.Auniversalrequirementforautomotiveelectronicsisthatanydevicewithdirectconnectionstothewiringharnessmustbeabletowith