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1、科技论文Frequencyconversioncontrolsystemmicrocontrollerperipheralcircuitdesign系别尚德光伏学院专业应用电子技术班级0903学生姓名学号指导教师2011年4月15无锡科技职业学院科技论文Frequencyconversioncontrolsystemmicrocontrollerperipheralcircuitdesign_______________________________________________________________________________Freq
2、uencyconversioncontrolsystemmicrocontrollerperipheralcircuitdesign【abstract】single-chipmicrocomputerwithappropriateperipheraldevicesandapplications,consistsoftheapplicationsystembecometheminimumsystem.Thearticletothefrequencyconversioncontrolsystemofthesinglechipmicrocomputerbuff
3、ercircuitdesignisdiscussed.【keywords】frequencyconversioncontrol;Singlechipmicrocomputer;BuffercircuitThisdesignUSESthechoicePHILIPSsemiconductorscompanywithmanualresetfunctionMAX708products.MAX708canalsomonitorthesecondpowersignal,astheprocessorprovidevoltagedropintowarningfuncti
4、on,usingthisfunction,thesystemcanbeinpowersupplyfalltoresetbeforeperformingsomesafetyoperation,saveparameters,sendwarningsignalsorswitchingback-upbattery,etc.Inaddition,thesystemalsoexpandedtheprogrammableperipheralPSD303chip.BecausethesystemI/Omouthquantityandreal?TheproductMAX7
5、08thatdesignstoadopttochoosePHILIPSthatthesemi-conductorcompaniestaketomovetoresetfunction.TheMAX708canalsokeepwatchonthesecondpowersignalandprovidetheelectricvoltagetheearly-warningfunctionfordroppingintoforprocessorandmakeuseofthisfunction,systemcanwhenthepowerdropintotocarryou
6、tsomesafetyoperationsbeforeresetting,keepparameter,sendoutalertsignalorcutoversparebatteryetc..Ontopofthat,thesystemexpandedprogrammableoutercirclechipPSD303.BecausetheIofsystem
7、theOamountstillhaveaverybigmarginwithactualamountneeded,pastthesystemexpandedtwoslicesof8255Asesagain,
8、theonewasusedforconnectingakeyboardandshownelectriccircuit,theoneisusedforcontacttosendletternumber,andurgentparkingsignal...etc..15无锡科技职业学院科技论文Frequencyconversioncontrolsystemmicrocontrollerperipheralcircuitdesign__________________________________________________________________
9、_____________A,keyboardwithshowelectricc