汽车保护电路电源电压中断

摘要：该电路保持电源的负载，无论在电源电压瞬间短路或打开，包括低电流过压保护IC（MAX6495的工作），保护负载免受瞬态电压高达72V。

Maxim>AppNotes>CircuitProtectionProtectionandIsolationKeywords:automotiveelectronics,overvoltageprotection,brownoutprotection,ride-throughcapability,MOSFETsDec22,2010APPLICATIONNOTE4550AutomotiveProtectionCircuit"RidesThrough"Supply-VoltageInterruptionsand72VTransientsBy:RonaldMoradkhanAbstract:Thiscircuitmaintainspowertotheloadregardlessofmomentaryshortsoropensinthesupplyvoltage,andincludesalow-currentovervoltage-protectionIC(MAX6495)thatprotectstheloadagainsttransientvoltagesupto72V.AsimilarversionofthisarticleappearedintheNovember25,2007issueofMachineDesignmagazine.Manyapplicationsinautomotiveelectronicsrequireasupplyvoltagethatremainsuninterrupt