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本用户手册描述了负载达到5W的-12V和-3.3VAC/DC模式开关电源。UM10523TEA1721universalmainswhitegoodsflybackSMPSdemoboardRev.1―27January2012UsermanualDocumentinformationInfoContentKeywordsTEA1721XT,flyback,non-isolated,dualoutput,whitegoods,SMPS,verylowno-loadpower,primary-sidefeedbackAbstractThisusermanualdescribestheTEA1721based12Vand3.3VAC/DCSMPSdemoboardwhichprovides5Wintoaload.NXPSemiconductorsUM10523UniversalmainswhitegoodsflybackSMPSdemoboardRevisionhist……