皮带输送机-毕业设计参考

《皮带输送机-毕业设计参考》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、河北科技师范学院本科毕业论文（设计）外文翻译LTC3105-DC/DC转换器院（系、部）名称：机电科学与工程系专业名称：电气工程及其自动化学生姓名：陈莹学生学号：9310080219指导教师：杜殿会2012年4月7日河北科技师范学院教务处制LTC3105-400mAStep-UpDC/DCConverterwithMaximumPowerPointControland250mVStart-Up1.Overview1.1FeatureslLowStart-UpVoltage:250mVlMaximumPowerPoi

2、ntControllWideVINRange:225mVto5VlAuxiliary6mALDORegulatorlBurstMode®Operation:IQ=24μAlOutputDisconnectandInrushCurrentLimitinglVIN>VOUTOperationlAntringingControllSoftStartlAutomaticPowerAdjustlPowerGoodIndicatorl10-Lead3mm×3mm×0.75mmDFNand12-LeadMSOPPackages1

3、.2TypicalApplication1.3DescriptionTheLTC3105isahighefficiencystep-upDC/DCconverterthatcanoperatefrominputvoltagesaslowas225mV.A250mVstart-upcapabilityandintegratedmaximumpowerpointcontroller(MPPC)enableoperationdirectlyfromlowvoltage,highimpedancealternativepo

4、wersourcessuchasphotovoltaiccells,TEGs(thermoelectricgenerators)andfuelcells.AuserprogrammableMPPCsetpointmaximizestheenergythatcanbeextractedfromanypowersource.BurstModeoperation,withaproprietaryselfadjustingpeakcurrent,optimizesconverterefficiencyandoutputvo

5、ltagerippleoveralloperatingconditions.TheAUXpowered6mALDOprovidesaregulatedrailforexternalmicrocontrollersandsensorswhilethemainoutputischarging.Inshutdown,IQisreducedto10μAandintegratedthermalshutdownoffersprotectionfromovertemperaturefaults.TheLTC3105isoffer

6、edin10-lead3mm×3mm×0.75mmDFNand12-leadMSOPpackages.1.4ApplicationsSolarPoweredBattery/SupercapacitorChargersEnergyHarvestingRemoteIndustrialSensorsLowPowerWirelessTransmittersCellPhone,MP3,PMPandGPSAccessoryChargers2.PackagingForcompleteanduptodatepackageinfor

7、mationanddrawings,pleaserefertoourpackagingpageDFN-10,MS-123.SimulateLTspiceIVisapowerful,fastandfreesimulationtool,schematiccaptureandwaveformviewerwithenhancementsandmodelsforimprovingthesimulationofswitchingregulators.TodownloadLTspiceIVandotherFREEsimulati

8、ontools,pleasevisitourDesignSimulationpage.TolaunchareadytorunLTspicedemonstrationcircuitforthispart:Step1:IfyouhavenotinstalledLTspiceonthiscomputer,downloadandinstallLTspiceIVSte