单片机科技论文.docx

单片机科技论文.docx

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单片机科技论文

科技论文

Frequencyconversioncontrolsystemmicrocontrollerperipheralcircuitdesign

系别尚德光伏学院

专业应用电子技术

班级

学生姓名

学号

指导教师

Frequencyconversioncontrolsystemmicrocontrollerperipheralcircuitdesign

【abstract】single-chipmicrocomputerwithappropriateperipheraldevicesandapplications,consistsoftheapplicationsystembecometheminimumsystem.Thearticletothefrequencyconversioncontrolsystemofthesinglechipmicrocomputerbuffercircuitdesignisdiscussed.

【keywords】frequencyconversioncontrol;Singlechipmicrocomputer;Buffercircuit

ThisdesignUSESthechoicePHILIPSsemiconductorscompanywithmanualresetfunctionMAX708products.MAX708canalsomonitorthesecondpowersignal,astheprocessorprovidevoltagedropintowarningfunction,usingthisfunction,thesystemcanbeinpowersupplyfalltoresetbeforeperformingsomesafetyoperation,saveparameters,sendwarningsignalsorswitchingback-upbattery,etc.Inaddition,thesystemalsoexpandedtheprogrammableperipheralPSD303chip.BecausethesystemI/Omouthquantityandreal?

TheproductMAX708thatdesignstoadopttochoosePHILIPSthatthesemi-conductorcompaniestaketomovetoresetfunction.TheMAX708canalsokeepwatchonthesecondpowersignalandprovidetheelectricvoltagetheearly-warningfunctionfordroppingintoforprocessorandmakeuseofthisfunction,systemcanwhenthepowerdropintotocarryoutsomesafetyoperationsbeforeresetting,keepparameter,sendoutalertsignalorcutoversparebatteryetc..

Ontopofthat,thesystemexpandedprogrammableoutercirclechipPSD303.BecausetheIofsystem|theOamountstillhaveaverybigmarginwithactualamountneeded,pastthesystemexpandedtwoslicesof8255Asesagain,theonewasusedforconnectingakeyboardandshownelectriccircuit,theoneisusedforcontacttosendletternumber,andurgentparkingsignal...etc..

A,keyboardwithshowelectriccircuit

Designatthisin,establishanoperationelectriccircuitof9keystoreplacephysicallytheoperationbuttononthescene.6LEDsshowthatelectriccircuitisusedfortoshowtoturnsoon,electriccurrent,andadjusttotryofrelateditem'sshowing.

Moreover,forthesakeofeasytothespotworkitestablished5×sthen4ofmatrixtypekeyboard,usedforwhenthesystemsoftwarewaitstoappearamistake,butagaintheinconveniencedirectlycarryonmodifyingtotheprocedureofadjusttotryofuse.

Two,becomerepeatedlysystemdesign

Themodernbecomesrepeatedlyinthetechniqueandmainlyhas2kindstobecomerepeatedlytechnique:

Handover-keep-handovertobecomerepeatedlyatechniqueandhandover-handovertobecomerepeatedlyatechnique.Handover-keep-handovertobecomerepeatedlytechniqueforhandover-keep-handovertobecomerepeatedlyandadjustsoonsystemtoprovidetobecomerepeatedlythepower.Handover-keep-handovertobecomerepeatedlyconstituteelectriccircuithavealreadycommutatedelectriccircuitandnegativechangeelectriccircuittwoparts,commutateelectriccircuitworkrepeatedlythealternatecurrentcommutateintodirectcurrentandgoagainsttochangeelectriccircuitagaindirectcurrentnegativechangeintoadjustablefrequencyalternatecurrent.Accordingtobecomingrepeatedlythepropertyofthepowercanisdividedintoelectricvoltagetypeandelectriccurrenttypetobecomerepeatedly.

Thisdesignisusedandhandedover-handoverandbecomerepeatedlyelectriccircuitisanimpassabilityandleadinthecenterdirectcurrentlink,butbecomethebecomingofalternatecurrentofdifferentfrequencytothealternatecurrentofthechargedbarbedwirenetfixedfrequencydirecttransformationrepeatedlyelectriccircuit.Thiskindofbecomesrepeatedlytheelectriccircuitbeextensivelyappliedtothebigpoweralternatecurrentmotiveadjuststosoonspreadsystemandphysicallyuseofmainlyisthreemutuallyoutputtohandover-handovertobecomerepeatedlyelectriccircuit.Thecharacteristicsofthiskindofelectriccircuit:

（1）Becauseisadirecttransformation,havenointhecenterlink,socomparegeneraloftheinverterefficiencyhavetobehigh;

（2）Itisdirecttooutputelectricvoltagewithitsexchangesfromcommunicatethatsomepartsthatinputelectricvoltagewavewrapnetconstitute,asaresultitsexportationfrequencytheratioinputthefrequencyofACpowerlow,theexportationwaveformisalsogood;（3）Becausebeinglimitedbychargedbarbedwirenetfrequency,usuallyoutputtingthefrequencyofelectricvoltageislower,orsofor1/3ofchargedbarbedwirenetfrequency;（4）Thepowerfactorislower,especiallymuchlowerwhenthelowspeedcirculates,needadequacyrepair.

Threemutuallybecomerepeatedlyelectriccircuitmorethelistismutuallycomplicated,itselectriccircuitconnectsalinemethodtomainlyhavepublicexchangesmotherthelineisintothelinemethodandexportationtypecouplingmethod.Concretelysaycome,itlordelectriccircuitthepatternhave:

3zerotypeelectriccircuits,6separatetoloadabridgetypeelectriccircuit,6simproperleavetoloadabridgetypeofelectriccircuitand12bridgetypeselectriccircuitand3takethemiddlepointtriangleloadelectriccircuitand3wreathformseselectriccircuit.

Thisdesignsmoresimple1kindofchoice-3zerotypeelectriccircuits.

Three,thesynchronouselectriccircuitdesign

ThefunctionofsynchronouselectriccircuitBE,attoshouldofcrystalZhatubetheacceptanceisjustfacingthesunpoleelectricvoltageofbeginningstartapoint（namelycontrolstartingcountingofCapeαpoint）tosendoutaCPUcanidentifyiswhichsamealiketreadtheinterruptionpulseofsignalUtpiandthecontrolforαCapetocarryonpostponeofrequest,outputhomologousoftriggerpulse.Threehomologiestreadtheelectricvoltagesignalthroughthesynchronoustransformer,filterwave,steadypress,enlargetoinsulatetoconnectintorespectivelybehindwithoptoelectronicslistP2.5,P2.6andP2.7pinsesoftheslicemachine.Moreover,becauseofheredirectcurrentthepowerandtriggerelectriccircuitinthepowerusedcannottotallyuse,andtheoptoelectronicsOumatchamachineimportationtheexportationcarriesofthegroundcarrytocannottotallyuse,either,forthesakeofwithshowdifferentiation,theyofthesignallhaveadissimilarity.

Ua,UbandUcwithcancontrolHuomoduleofthreemutuallycommunicateelectricvoltagetogetherandmutually.Ua,UbandUcthroughR3,C3afterfilteringtheformtransformationlightOuofanelectriccircuitwaveinsulateorthopedicselectriccircuitoutputthreemutuallysquarewaveelectricvoltage,recordtocarryforKA,KBandKC,threemutuallysquarewavesendingtothe80C196respectivelylisttheP2people'sP2.5,P2.6andP2.7oftheslicemachine.CPUjudgesthreeaccordingtothevalueofKA,KBandKCACpowermutuallyofmutually.

Four,triggerelectriccircuit

Inthedesign,threemutuallyelectriccircuitinmutuallyandallhaveeachtimetwosetsofpositiveandnegativecrystalZhatube,eachoneadoptsthreemutuallythehalfwavetypeconnectamethod,namelyeachusethreepipes,sototallyhave18crystalZhastotakecareof,so,triggeringthepulseshouldalsohave18roads.ThetriodetransistorVenlargestransistorforoutputstagepower;Inordertoaccelerateelectriccapacity,theelectriccapacityCconstitutesdifferentialcalculuselectriccircuitwithR,canfollowbeforeraisingpulseofabruptdegree;Forgiveattentiontobothanti-interferencetheabilityandpulseisex-tofollowanabruptdegree,generallytakeCto0.1μofF.Inordertoprotectpulsetransformer,mergeelectricresistanceRandestablishingofdiodeDelectriccircuitinthepulsetransformerbothends,thegeneralRresistivitytakesto1K.TheelectricresistanceRisaleaveelectricresistancetoload.Moreover,forthesakeofinsulateimportationoutputsignal,joinedoptoelectronicsOutomatchamachine,inconsiderationofshouldhaveenoughpulsestrengthtomakethecrystalZhatubeleadsandoutputpoletheelectricvoltageestablishto15Vs.Inthemiddleofsettingoutelectriccircuit,forgettingenoughpulsewidth,andmakingpulseex-tofollowasfaraspossibleabrupt,empressalongwithdescendquickly,soadoptedpulsetransformerT~T.Moreover,forattaininganelectricityinsulationfunction,aswelljoinedoptoelectronicstoaccidentallymatchamachine.Furthermore,foreasytolistslicethemachinecarryinthesynchronoustransformer1~18importationstothecontrolthattriggerselectriccircuitandledtogointourgentblockadersignalrespectively（fromHSO.0leadtogointo）with555infixedtimemachineconstituteofmanyXiesflaptoconcussmachinesignal,whilemanyXiesflapthecontrolsignalofconcussingthemachinethenfromlistHSOoftheslicemachine.Onecontrol.Thus,whentheelectricalengineeringinputsurgentparkingsignal,listslicethemachinepassitsHSO.0outputGaoDianPing,somaketotriggeranelectriccircuitimportationportoforthenon-doorbeblockaded,alsonamelyblockadedtobecometorepeatedlyequipoftriggerpulse,maketheelectricalengineeringquicklyparkthecar.

Five,theprotectionelectriccircuitdesign

Forraisingthecredibilityandsafetyofcontrolingthesystem,indesignandmovementcommunicatingelectricpowersystem,allhavetoinconsiderationofhaveoccurrencebreakdownanddon'tworkasusualcircumstanceofpossibility.Atthreemutuallycommunicateelectricpowersystemin,themostfamiliarandthemostdangerousbreakdownismultiformshortcircuit,includethreeamongthemmutuallyshort-circuit,twomutuallyshort-circuit,onconnectingagroundofshortcircuitandelectricalengineeringandt