简介：Anovellowpowerandlowvoltagecurrentmirrorwithaverylowcurrentcopyerrorispresentedandtheprincipleofitsoperationisdiscussed.Inthiscircuit,thegainboostingregulatedcascodeschemeisusedtoimprovetheoutputresistance,whileusinginverterasanamplifier.ThesimulationresultswithHSPICEinTSMC0.18umCMOStechnologyaregiven,whichverifythehighperformanceoftheproposedstructure.Simulationresultsshowaninputresistanceof0.014Ωandanoutputresistanceof3GΩ.Thecurrentcopyerrorisfavorableaslowas0.002%togetherwithaninput(theminimuminputvoltageofvin,min~0.24V)andanoutput(theminimumoutputvoltageofvout,min~0.16V)complianceswhileworkingwiththe1Vpowersupplyandthe50uAinputcurrent.Thecurrentcopyerrorisnearzeroattheinputcurrentof27uA.Itconsumesonly76uWandintroducesaverylowoutputoffsetcurrentof50pA.

简介：Themagneticimprovisedexplosivedevices(IEDs),alsocommonlyknownasatypeofastickybomb,issimplyconstructeddevicesyetverylethal.Thispaperputsforwardtheideaofanelectroniccompassthatiscapableofsensingthechangeofamagneticfieldgeneratedbyamagnetandtranslatingitintointerpretabledata,whichcouldactasthebaseforthefurtherstudiesandassistindevelopingagreenerautomatedsystemfordetectingthisdevice.Theelectroniccompassisspecificallychosenforreducingpowerconsumptionofsystemsinadditiontothefactthatitisavailableatalowcost.

简介：译码性能的涡轮将在为剩余频率和阶段的原因的条件在搬运人抵消的低signal-to-noise比率(SNR)下面承受严肃的降级。在这份报纸，一个改进剩余搬运人频率偏移量评价算法基于upriori概率帮助了(APPA)阶段评价被建议。一起联合反复的涡轮解码器和阶段评估者的一个搬运人同步环被构造，在从涡轮解码器获得的外来的信息被用来帮助反复的阶段评价进程的地方。算法在很低的SNR下面成功地执行的模拟结果表演调节(例如，不到-7.4dB)与大频率偏移量和阶段错误和这的表演，算法离最佳地同步的系统很靠近。

简介：InviewofthelimitationsofaRn-GnmodelinthelowfrequencyrangeandthedefectsofanEn-Inmodelincommonusenow,thispaperbuildsacompleteEn-Inmodelaccordingtothetheoryofrandomharmonic.Theparametersforthelow-noisedesignsuchastheequivalentinputnoisyvoltageEns,theoptimumsourceimpedanceZsoptandtheminimumnoisefigureFmincanbecalculatedaccuratelybyusingthisEn-Inmodelbecauseitconsidersthecoherencebetweenthenoisesourcesfully.Moreover,thispaperpointsoutthatitwillcausethemaximum30%miscalculationwhenneglectingtheeffectsofthecorrelationcoefficient7.Usingtheseries-seriescircuitsasanexample,thispaperdiscussesthemethodsfortheEn-InnoiseanalysisofelectroniccircuitspreliminarilyanddemonstratesitscorrectnessthroughthecomparisonbetweenthesimulatedandmeasuredresultsoftheminimumnoisefigureFminofasinglecurrentseriesnegativefeedbackcircuit.

简介：ThelowresistancePTCceramicthermistormaterialwithexcellenteleectricalpropertiesaresuccessfullyfabricatedbyrawmaterialsatindustrialrangemadeinourcountryonthestudyofitscompositionexpressionandfabricationprocessbyusingtheadditionofNb,La,Y,Ta,microstructureregulatorBNandASTLphase.Thecompositionanditsfabricationmethodarestudied.TherelationofelectricalpropertiesofthePTCceramicmaterialtoitscompositionexpressionanditsrelatedelectricalpropertiesarediscussed.

简介：介绍是被调节到需要的一个低噪音接口电路自己组装单层生物传感器SoC。读出电路的相关双采样(CDS)单位能有效地减少1/f噪音，KTC噪音和微数组的固定噪音。电路在0.6m/level被模仿7标准互补金属氧化物半导体过程，和模仿的结果证明输出电压与微数组的transducing电流有好线性。这是包括分享减少联合起来的CDS的一个普通一半电路和噪音的四个放大器的一个新奇电路。它能广泛地为微数组生物传感器被使用。

简介：电力电子技术中，不断有新名词大量涌现，据统计，几乎平均每5年，电子电源方面就会出现一批的科技新名词。10年前出现的典型的电力电子新名词有：

简介：DetailedanalysisontransientcharacteristicsofECLcircuitsareperformedinthispaper,thenarelativelyexactpropagationdelayexpressionappliedforalltemperaturesispresented.Thecryogeniccharacteristicsofsomedominantparameterscontributedtopropagationdelayarealsodiscussed.Themodelachievedissuitableforoptimumdesignsofhighspeeddevicesandcircuitsatalltemperatures.

简介：ForthereliabilityandpowerconsumptionissuesofEthernetdatatransmissionbasedonthefieldprogrammablegatearray(FPGA),alow-powerconsumptiondesignmethodisproposed,whichissuitableforFPGAimplementation.Toreducethedynamicpowerconsumptionofintegratedcircuit(IC)design,theproposedmethodadoptsthedynamiccontroloftheclockfrequency.Formostofthetime,whentheportisintheidlestateorlower-ratestate,userscanreduceoreventurnoffthereadingclockfrequencyandreducetheclockflipfrequencyinordertoreducethedynamicpowerconsumption.Whenthereceivingrateishigh,thereadingclockfrequencywillbeimprovedtimelytoensurethatnodatawilllost.SimulatedandverifiedbyModelsim,theproposedmethodcandynamicallycontroltheclockfrequency,includingthedynamicswitchingofhigh-speedandlow-speedclockfliprates,orstopoftheclockflip.

简介：BasedontheanalysisofDCcharacteristicsofsiliconbipolartransistorsatlowtemperature,DCanalyticmodelsofECLcircuitatlowtemperaturearederived,thencomparedwiththeexperimentaldataandcomputersimulationresults.ThemodificationofSPICEBJTmodelabouttemperatureanddesignoflowtemperatureECLcircuitarediscussed.

简介：Toutilizingthecharacteristicofradarcrosssection(RCS)ofthelowdetectableaircraft,aspecialpathplanningalgorithmtoeludingradarsbythevariableRCSispresented.ThealgorithmfirstgivestheRCSchangingmodeloflowdetectableaircraft,thenestablishesathreatmodelofaground-basedairdefensesystemaccordingtotherelationsbetweenRCSandtheradarrangecoverage.Bythenewcostfunctionsoftheflightpath,whichconsiderbothfactorsofthesurvivalprobabilityandthedistanceoftotalroute,thispathplanningmethodissimulatedbasedontheDijkstraalgorithm,andtheplannedroutemeetstheflightcapacityconstraints.Simulationresultsshowthatusingtheeffectivepathplanningalgorithm,thelowdetectableaircraftcangivefullplaytoitsownadvantageofstealthtoachievethepurposeofsilentpenetration.

简介：Becauseoflimitedresourceofembeddedplatforms,thecomputationalcomplexityofadvancedcontrolalgorithmsraisessignificantchallengesfortheuseofembeddedsystemsincomplexcontrolfield.AScilab/Scicosbasedembeddedcontrollerisdevelopedonwhichvariouscontrolsoftwarecanbeeasilymodeled,simulated,implemented,andevaluatedtomeettheever-expandingrequirementsofindustrialcontrolapplications.BuiltontheCirrusLogicEP9315ARMsystems-on-chipboard,thisembeddedcontrollerispossibletodevelopcomplexembeddedcontrolsystemsthatemployadvancedcontrolstrategiesinarapidandcost-efficientfashion.Duetothefreeandopensourcenatureofthesoftwarepackagesused,thecostoftheembeddedcontrollerisminimized.

简介：Lowtemperatureliquidphaseepitaxyofsiliconthinfilmswassuccessfullycarriedoutatatemperatureof(400-500)℃,usingAu/BialloyasaSi-saturatedSnsolutionwasusedtoprotectthesubstratesurface,preventingeffectivelytheoxidationofsilicon.ThegrownSithinfilmswereidentifiedbySEM,AESandC-Vmeasurements.

简介：Alow-complexitymethodfordirectionofarrival(DOA)estimationbasedonestimationsignalparametersviarotationalinvariancetechnique(ESPRIT)isproposed.Insteadofusingthecross-correlationvectorsinmultistageWienerfilter(MSWF),theorthogonalresidualvectorsobtainedinconjugategradient(CG)methodspanthesignalsubspaceusedbyESPRIT.Thecomputationalcomplexityoftheproposedmethodissignificantlyreduced,sincethesignalsubspaceestimationmainlyneedstwomatrixvectorcomplexmultiplicationsattheiterationofdatalevel.Furthermore,thepriortrainingdataarenotneededintheproposedmethod.Toovercomeperformancedegradationatlowsignaltonoiseratio(SNR),theexpandedsignalsubspacespannedbymorebasisvectorsisusedandsimultaneouslyrendersESPRITyieldredundantDOAs,whichcanbeexcludedbyperformingESPRIToncemoreusingtheunexpandedsignalsubspace.ComparedwiththetraditionalESPRITmethodsbyMSWFandeigenvaluedecomposition(EVD),numericalresultsdemonstratethesatisfactoryperformanceoftheproposedmethod.

简介：Basedonanalyzingsignificanceofcontrollingclockindesignoflowpowersequentialcircuits,thispaperproposesatechniquethatthegatingsignalisderivedfromthemasterlatchinaflip-floptomakethederivedclockhavingnoglitchandnoskew.Thedesignofadecimalcounterwithhalf-frequencydivisionshowsthatbyusingthesynchronousderivedclockthecounterhaslowerpowerdissipationaswellassimplercombinationallogic.Computersimulationshows20%powersaving.

简介：Thispaperproposesatechniquetomitigatethevoltageunbalanceissuecausedbythehighpenetrationofphotovoltaic(PV)systemsintothelowvoltagedistributionnetworks(LVDN)usingasinglephaseenergystoragesystem(ESS).TheESScomprisesabi-directionalpowerflowinverterandabatterybank.Thesystemiscapableofabsorbingtheexcesspoweranddeliveringpowertothenetworkinordertokeepthevoltageunbalancefactor(VUF)belowthestatutorylimitof1%.Investigationsarecarriedoutintheexperimentalsmall-scaleenergyzone(SSEZ).TheexperimentalresultsdemonstratethattheESSiscapableofmitigatingtheVUFofthenetwork.

简介：Thestructuralparametersoflow-steppedmirrorwhichisthecorecomponentofalightFouriertransforminfraredspectrometer(FTIRS)haveimportantinfluenceontheperformanceoftheinstrument.Asimplemethodofmultipledepositionisproposedtofabricatealow-steppedmirrorwithstepheightof625nm,foritshighprecision,highefficiencyandminiaturization.Sothefilmstresswillbeintroducedintheprocessofcoating,whichcanleadtostepdeformation.Webuildabendingmodelofthelow-steppedmirrorandanalyzetheinfluenceofitsdeformation.Thelightintensityandspectrumarechangedbythestepdeformation.Therefore,thefilmstressshouldbereducedinordertoensuretheaccuracyofthespectralinformation.Increasingthethicknessofsubstrateis.proposedinthispapertoreducethestepdeformation,besidesadjustingthecoatingtemperatureandaddingsub-layer.Ourresultsrevealthatthebasicrequirementsofthesystemaresatisfiedwhenthethicknessofthesubstrateis5mmintheappropriatecoatingenvironment.AnFTIRSbasedonsteppedmirrorsandgridbeamsplitterisassembledandcorrespondingexperimentiscarriedouttoobtainthespectrumcurveofacetonitrile.

简介：复合微分电压比较仪(MDVC)的一个新奇图案为减少电流和电源驱散被介绍。根据关系操作和逻辑操作的特殊性质，比较仪的部分在一些例子是冗余的，并且能因此被关掉。由选择并且切换当前的线路，几有效的微分对被单个尾巴电流stage-by-stage偏导，冗余的比较仪被切他们的尾巴电流关掉。作为结果，静止电流和电源消费极大地被减少。切换电流被输入完成微分对晶体管自己和因此没有额外的开关被要求。当MDVC很快被使用时analog-to-digital变换器(模数转换器)，它的当前的驱散比常规比较仪的低得多。这体系结构能也为逻辑操作在窗户比较仪，最大或最小的比较仪，和比较仪被使用。在所有这些盒子中的电源驱散能显著地被减少。

简介：最高的接触n类型有低操作电压的器官的地效果晶体管被采用Ta2O5/PMMA作为双绝缘体和PTCDI-C12作为半导体活跃的层。Ta2O5层被使用简单节俭的阳极化技术准备，PMMA层被使用纺纱涂层方法准备。与有单个Ta2O5绝缘体，有两倍绝缘体的设备显示出显然更好的电的性能。它有0.063厘米2/Vs,的地效果电子活动性1.7×1的开／关比率04和2.3V的阀值电压。

简介：有逐渐地沿着光线的轴增加空气洞的直径的三角形格子的高度双折射的photonic水晶纤维(PCF)被提出。形式的birefringence，分散和基本模式的监禁损失被完整的向量Galerkin有限元素方法模仿(女性)与完美地匹配的层(PML)。当空气洞的戒指是很少时，结果证明这PCF能把低监禁作为损失。当波长是1.55渭m时，birefringence，监禁损失快轴、慢轴是1.365脳10?3，0.017dB/m和0.051dB/m分别地。一个新方法被建议与高效制作polarization-mainting纤维。