标签: ds3903

摘要：本应用指南介绍如何使用数字电位器生成使用MAX1776降压直流-直流转换器可调节电压供应。使用DS3903的参考设计显示功能产生1.25v和5.50V与电位器之间的受规管的供应能力允许所需的电压水平的1.8%内必须进行校正，供应。取决于当前的限制设置与MAX1776一起使用，设计是电流的有能力提供高达600mA。Maxim>AppNotes>DIGITALPOTENTIOMETERSPOWER-SUPPLYCIRCUITSKeywords:MAX1776,DS3903,digitalpot,digipot,epot,dc-dcconvertor,dc-dcconversion,dc-dcconverters,Dec10,2002digitalpotentiometersAPPLICATIONNOTE225UsingDigitalPotentiometersinAdjustableStep-DownDC-DCConverterDesignsAbstract:ThisapplicationnotedescribeshowtouseadigitalpotentiometertogenerateanadjustablevoltagesupplyusingaMAX1776step-downDC-DCconverter.AreferencedesignusingtheDS3903isshownthatfeaturestheabilitytoproducearegulatedsupplybetween1.25Vand5.50V,andthepotentiometerallowsthesupplytobecalibratedtowithin1.8%ofthedesiredvoltagelevel.DependingonthecurrentlimitsettingsusedwiththeMAX1776,thedesigniscapableofsup……

摘要：一些数字系统控制位设置为高或低取决于系统的配置。一个常见的例子是在一台PC配置跳线或DIP开关设置光盘驱动器是一个ISA总线上的船长或奴隶。在其他应用程序，这些配置位可启用或禁用功能，如马达驱动器或灯泡时功率为允许处理器时间采取控制系统，使安全或电源预算的原因，有秩序地功能。本应用笔记演示如何备用非易失（NV）数字电位器可以用于数字配置位。Maxim>AppNotes>DIGITALPOTENTIOMETERSGENERALENGINEERINGTOPICSKeywords:NV,nonvolatile,digipot,digitalpotentiometer,digitalpots,digitalconfiguration,epot,DS3903,Mar03,2003DS1846APPLICATIONNOTE235UsingSpareNVDigitalPotsasNVDigitalConfigurationBitsAbstract:SomedigitalsystemshavecontrolbitsthataresettoHIorLOdependingontheconfigurationofthesystem.AcommonexampleinaPCisaconfigurationjumperordipswitchthatsetswhichdiscdriveisthemasterorslaveonanISAbus.Inotherapplications,theseconfigurationbitsmayenableordisableafunctionsuchasamotordriveorlampaduringpower-uptoallowaprocessortimetotakecontrolofthesystemandenablefunctionsinanorderlymannerforsafetyorpowerbudgeti……