dsPICDEM™SMPS降压开发板用户指南

Figure1-1isablockdiagramofthedsPICDEM™SMPSBuckDevelopmentBoard,A

dsPIC30F2020DSCcontrolstwoindependentDC/DCsynchronousbuckconverters,

providingclosed-loopProportional,Integral,Derivative(PID)controlinsoftwareto

maintaindesiredoutputvoltagelevels.ThedsPIC

®

DSCdeviceprovidestheneces-

sarymemoryandperipheralsforA/Dconversion,PWMgenerationandgeneral

purposeI/O,precludingtheneedtoperformthesefunctionsinexternalcircuitry.dsPICDEMSMPSBuckDevelopmentBoardUser’sGuide2006MicrochipTechnologyInc.DS70181ANotethefollowingdetailsofthecodeprotectionfeatureonMicrochipdevices:MicrochipproductsmeetthespecificationcontainedintheirparticularMicrochipDataSheet.Microchipbelievesthatitsfamilyofproductsisoneofthemostsecurefamiliesofitskindonthemarkettoday,whenusedintheintendedmannerandundernormalconditions.Therearedishonestandpossiblyillegalmethodsusedtobreachthecodeprotectionfeature.Allofthesemethods,toourknowledge,requireusingtheMicrochipproductsinamannerout