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1、高功率因數(shù)開關(guān)電源設(shè)計系（部）：自動化系專業(yè)班：0803班姓名：學(xué)號：指導(dǎo)教師：2012年12月1日高功率因數(shù)開關(guān)電源設(shè)計Highpowerfactorpowerdesign摘要功率因數(shù)設(shè)計是關(guān)鍵指標(biāo)的電源、電源一貫重視開發(fā)技術(shù)問題。本文重點對當(dāng)前流行的單片開關(guān)電源芯片為普遍的低功率開關(guān)電源的設(shè)計和制造。在這里,電源控制電路,利用全氟化碳的使用UCC28019可大大提高了功率因數(shù)。電源由6個部分交直流轉(zhuǎn)換電路、電源轉(zhuǎn)換電路、功率因數(shù)檢測電路,全氟化碳的控制電路、數(shù)字集和測量電路、保護(hù)電路。交直流轉(zhuǎn)換電路使用控制整流器,電源轉(zhuǎn)換電路使用提高拓?fù)浣Y(jié)構(gòu),這可以輸出電壓值是形式
2、30到36。電源利用C8051F020,供應(yīng)鏈管理能完成數(shù)字集和措施。該系統(tǒng)具有一定的優(yōu)點:直觀特性、穩(wěn)定性好,顯著提高功率因數(shù)。關(guān)鍵詞：boost拓?fù)浣Y(jié)構(gòu)功率因數(shù)檢測UCC28019C8051F02047AbstractPowerfactoristhekeyindicatorsofthepowersupplyswitchdesign,improvingpowerfactorisinthedevelopmentofswitchpowersupplyhasalwaysattachedgreatimportancetothetechnicalproblems.Paperso
3、nthepopularsinglepieceofswitchpowersupplychip,realizethesmallpower,highpowerfactoroftheswitchingvoltagestabilizerforthedesignandproduction.ThedesignofhighpowerfactorcontrolmodeapplicationswitchingpowersupplyPFC,introduceTIcompanythelaunchofnewUCC28019controlchip,powerfactorcloseto1.Thepo
4、wersupplybyAC-DCtransformcircuit,DC-DCtransformcircuit,controlcircuitandPFCpowerfactordetectioncircuit,digitalmeasurementshowcircuitprotectioncircuit,othercomponents.Amongthem,theAC-DCtransformcircuitadoptsbridgetypeisnotinpossessionofrectifierway,DC-DCtransformcircuittopologystructureby
5、boost,whichcanrealize36Vvoltageoutput,anduseofC8051F020SCMrealizingoutputmeasurementdisplayandpowerfactortestshowedthatetc.Function.Thepowerofthemainadvantageis:thefunction,intuitive,andgoodstability,voltageadjustmentrate,theloadratearetheprescribedscopewithinthepowerfactorthantraditiona
6、lswitchingpowersupplyisgreatlyimproved.Keywords:boosttopologypowerfactortestUCC28019C8051F02047目錄1系統(tǒng)總體電路·······················71.1系統(tǒng)總體電路框架··················71.2主控芯片UCC28019的說明···············71.3DC-DC變換模塊···················121.4系統(tǒng)電路圖······················131.5小結(jié)··························
7、132功率因數(shù)檢測························142.1功率因數(shù)的基本定義··················142.2功率因數(shù)檢測的實現(xiàn)··················142.3實現(xiàn)程序························152.4小結(jié)··························163輸出采樣與顯示電路························173.1控制器的選擇······················173.2輸出采樣電路······················203.3信號
