获得12V ， 8V至15V的输入

摘要：降压/升压转换器，成功地解决了调节一个12V的宽输入电压摆动与密封铅酸蓄电池的挑战。

Maxim>AppNotes>CIRCUITPROTECTIONPOWER-SUPPLYCIRCUITSKeywords:buck/boostconverter,buck-boost,dc-dcconverters,batterypowersupply,12Vregulation,MAX641Jul09,1998APPLICATIONNOTE411Derive12VFrom8Vto15VInputAbstract:Thebuck/boostconvertersuccessfullyaddressesthechallengeofregulatinga12Vfromthewideinput-voltageswingassociatedwiththesealedlead-acidbattery.Derive12VFrom8Vto15VInputYoucan'tderivearegulated12Voutputfroma12Vlead-acidbatterybyusingasimpleboostconverterbecauseititcan'tacceptaninputvoltagethatisgreaterthanitsoutputvoltage.Conversly,abuckconverterisacombinationofbuckandboostcircuitrythatsuccessfullyaddressesthechallengeofthewideinput-voltageswingassociatedwit