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时间: 2019-12-24 18:18
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摘要:一个DS4424可调电流DAC用于调整的DC-DC转换器的输出电压幅度。本文介绍如何正确地选择一个DC-DC转换器的反馈分压器网络的电阻值时,DS4424在设计就业。Maxim>AppNotes>DIGITALPOTENTIOMETERSKeywords:DC-DCconverter,resistivefeedbackdividernetwork,currentDAC,full-scalecurrent,sourceSep22,2008current,sinkcurrent,outputvoltagemargin,powersupply,testmargining,DC-DCconverterfeedbackmarginingAPPLICATIONNOTE4280UsingtheDS4424toMargintheOutputVoltageofaDC-DCConverterAbstract:ADS4424adjustable-currentDACisusedtoadjustthemarginofaDC-DCconverter'soutputvoltage.ThisarticledescribeshowtoproperlyselecttheresistorvaluesofaDC-DCconverter'sfeedbackdividernetworkwhentheDS4424isemployedinthedesign.IntroductionTheDS4424adjustable-currentDACissimilartotheDS4404adjustable-currentDACwithtwomajordifferences.First,theDS4424has127settingseachfor……