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77 个结果
  • 简介:一篇小说的设计优化综合基于为fiber-to-the-home应用的平面lightwave电路(PLC)更三重被描述。二模式的干扰coupler和Mach-Zehnder干扰被用来构造过滤器薄片。高隔离和低插入损失的模拟结果为建议设计被得到。技术忍耐为制作设备被改进。CLC数字TN256

  • 标签: 光波电路 芯片 集成光学器件 隔离
  • 简介:有非线性赔偿的一个高速度列平行CDS/ADC电路在这份报纸被建议。相关双采样(CDS)和analog-to-digital变换器(模数转换器)工作基于二漂浮门inverters和开关电容器网络集成于一个三阶段的列平行电路。传统的单个斜坡的模数转换器的变换率被划分量子化到粗糙的步和好步加快。一个存储电容器被用来存储粗糙的步的结果并且定位好步的斜面信号的节,它能从2n把钟步骤归结为2(n/2+1)。漂浮的门inverters被实现减少电源消费。它的导致的非线性的偏移量被把一个赔偿模块介绍给inverter的输入取消,它能在建议电路的三个阶段使相等联合路径。这个电路与640为互补金属氧化物半导体图象传感器被设计并且模仿,

  • 标签: CMOS图像传感器 非线性补偿电路 高速并行 ADC CDS 模拟数字转换器
  • 简介:Withtheincreaseoftheclockfrequencyandsiliconintegration,powerawarecomputinghasbecomeacriticalconcerninthedesignoftheembeddedprocessorandsystem-on-chip(SoC).Dynamicvoltagescaling(DVS)isaneffectivemethodforlow-powerdesigns.However,traditionalDVSmethodshavetwodeficiencies.First,theyhaveaconservativesafetymarginwhichisnotnecessaryformostofthetime.Second,theyareexclusivelyconcernedwiththecriticalstageandignorethesignificantpotentialfreeslacktimeofthenoncriticalstage.Thesefactorsleadtoalargeamountofpowerwaste.Inthispaper,anovelpipelinestructurewithultra-lowpowerconsumptionisproposed.Itcutsoffthesafetymarginandtakesuseofthenoncriticalstagesatthesametime.Aprototypepipelineisdesignedin0.13mtechnologyandanalyzed.Theresultshowsthatalargeamountofenergycanbesavedbyusingthisstructure.Comparedwiththefixedvoltagecase,50%oftheenergycanbesaved,andwithrespecttothetraditionaladaptivevoltagescalingdesign,37.8%oftheenergycanbesaved.

  • 标签: 流水线结构 超低功耗 低功耗设计 动态电压调节 时序 电路
  • 简介:Basedonsimpleanalyticalequations,shortcircuitcurrentdensity(JSC)oftheorganicbulkheterojunctionsolarcellshasbeencalculated.ItisfoundthattheopticalinterferenceeffectplaysaveryimportantroleinthedeterminationofJSC;andobviousoscillatorybehaviourofJSCwasobservedasafunctionofthickness.Atthesametime,theinfluenceofthecarrierlifetimeonJSCalsocannotbeneglected.Whenthecarrierlifetimeisrelativelyshort,JSConlyincreasesattheinitialstageandthendecreasesrapidlywiththeincreaseofactivelayerthickness.However,forarelativelylongcarrierlifetime,theexcitondissociationprobabilitymustbeconsidered,andJSCbehaveswave-likewiththeincreaseofactivelayerthickness.Thevalidityofthismodelisconfirmedbytheexperimentalresults.

  • 标签: 微电子学 电路 电子密度 理论
  • 简介:Mesoscopic抑制了联合的相互的电容两倍回声电路被抑制泛音振荡器量子化的方法使量子化。Hamiltonian是由单一的转变的方法的diagonalized。这个电路的精力系列被给。费用的量变化和每个环的电流被thermofield动力学(TFD)的方法处于热刺激状态,热挤压的真空状态,热真空状态和真空状态调查。费用和水流的量变化与不仅电路有关是固有的参数并且联合刺激,挤压的系数,挤压的角度和环境温度的大小,而且量数字,这被显示出。并且量变化与时间随温度和腐烂的增加增加。CLC数字TN401由山东省,中国(No.XY05WL01)和大学的Heze大学的自然科学基础支持了山东省的试验性的技术基础,中国(No.S04W138)

  • 标签: 介观电容耦合阻尼 双谐振 RLC电路 热激发态 量子涨落
  • 简介:有二个串联microring共鸣器和二U弯曲波导的一个XOR/XNOR光逻辑电路被建议。microring共鸣器用电镀物品光的聚合物做的并且通过线性电镀物品光的效果调制。二个电的信号被用于二microrings,并且同时的XOR和XNOR操作在二个不同操作模式被表明。我们也使用散布矩阵方法分析模拟输出系列,并且发现象00和11一样的不同输入能在某些波长在输出系列导致不同扑灭比率,尽管他们的数字产量是一样。

  • 标签: 逻辑电路 谐振器 微环 弯曲波导 级联 设计
  • 简介:参加中职技能大赛有利于激发学生学习兴趣、提高学生学习水平,但任何一场中职技能比赛都离不开《电子技术基础》课程的学习、应用。然而《电子技术基础》内容庞杂、概念抽象、电路结构复杂,再加上中职学生的学习基础普遍不扎实、学习自觉性普遍较差,对这门课程的学习愈加困难。文章利用EveryCircuit对复杂电路进行仿真,使原本庞杂的内容更加清晰、抽象的概念更易理解、复杂的电路结构更加明了。学生在学习中还能直观的观察到动态电压和电流的动画,更好地激发学生学习的兴趣,调动学生学习的积极性。

  • 标签: 电子技术 EVERY CIRCUIT 单向导电性
  • 简介:在高速度的电路的域里,包含的混合电路网络的分析两个都散布了参数元素和lumped参数元素变得曾经重要。这篇论文为分析混合电路网络论述一个新方法。它补充说到古典修改节的途径和罐头的电路变量的传播线结束水流直接被用于混合电路网络。没有要求去耦,我们也介绍一种频率域技术因为多售票员传播排队。二个方法一起被联合高效地分析包含一致、不一致的、andfrequency依赖的传播线的高速度的电路网络。数字实验被介绍,结果与由PSPICE计算了那相比。

  • 标签: 分布参数 多触点传播线路 循环网络 瞬时分析
  • 简介:Withtheadvantagesoftransmittingenergyfrommultipledirectionstoonedirectionandtransformingvibrationfromonesourcetomultipledirections,thetwo-dimensionalvibrationdirectionconverterhasimportantapplicationsinpowerultrasonictechnology.However,forthecomplexityofusingthewaveequationtodesignandanalysisthetwo-dimensionalvibrationdirectionconverter,aconciseequivalentcircuitfortheconverterisinvestigated.Byintroducingthetwo-dimensionalmechanicalcouplingcoefficientandthelongitudinalforcetransformcoef-ficient,andusingtheelectromechanicalanalogyprinciple,theequivalentcircuitandresonancefrequencyequationofthetwo-dimensionalvibrationdirectionconvertervibratinginanti-phaseandin-phasetwo-dimensionalcoupledvibrationarededuced.Theresonancefrequenciesofthevibrationdirectionconvertersoftwodifferentmaterialsarecalculatedbyusingtheproposedfrequencyequation,whichareinagreementwiththeresultsfromthefiniteelementmethodandtheexperimentaltest.Itprovidesaconcisemethodforthedesignandapplicationsofsuchultrasonicvibrationsystem.

  • 标签: TWO-DIMENSIONAL COUPLED VIBRATION EQUIVALENT CIRCUIT CONVERTER
  • 简介:Akindofdrivecircuitwhichislowpowerconsumption,high-performanceandhigh-poweroutputforsteppingmotor,basedonBY-5064,andakindofdedicatedcircuitfortwo-phasehybridsteppingmotoraredesigned,drivecontrolforsteppingmotorwithhigh-powerisachieved.

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  • 简介:Afast-speedpulsedetectorbasedonn-typeSi-Schottkydiodemountedinthewaveguideisinvestigated.Therelationofthefast-speedpulsedetectorbetweenresponsetimeand3dBbandwidthisanalyzed.Byadoptingthetunablecircuit,thematchedbandwidthisachievedaswideaspossible.Experimentalresultsshowthatthepulseresponsetimeofthedetectorislessthan150pswithinrandomcarriersignal500MHzbandwidthrangebetween35GHzto39GHzviatuningcircuit.Thedetectorisveryeasytooperatebecauseitdoesnotneedbiascurrentorsynch-pulsesource.

  • 标签: 高速脉冲 调谐电路 检测器 电路基础 肖特基 N型硅
  • 简介:Weproposeasingle-stepimplementationofamuti-target-qubitcontrolledphasegatewithonecatstatequbit(cqubit)simultaneouslycontrollingn—1targetcqubits.Thetwologicstatesofac.qubitarerepresentedbytwoorthogonalcatstatesofasinglecavitymode.Inthisproposal,thegateisimplementedwithnmicrowavecavitiescoupledtoasuperconductingtransnionqutrit.Becausethequtritremainsinthegroundstateduringthegateoperation,decoherencecausedduetothequtrit5senergyrelaxationanddephasingisgreatlysuppressed.Thegateimplementationisquitesimplebecauseonlyasingle-stcpoperationisneededandneitherclassicalpulsenormeasurementisrequired.Numericalsimulationsdemonstratethathigh-fidelityrealizationofacontrolledphasegatewithonecqubitsimultaneouslycontrollingtwotargetcqubitsisfeasiblewithpresentcircuitQEDtechnology.Thisproposalcanbeextendedtoawiderangeofphysicalsystemstorealizetheproposedgate,suchasmultiplemicrowaveoropticalcavitiescoupledtoanaturalorartificialthree-levelatom.

  • 标签: circuit QED cat-state multi-target-qubit controlled phase
  • 简介:Thispaperintroducedthebasictheoryandalgorithmofthesurrogatedatamethod,whichproposedarigorouswaytodetecttherandomandseeminglystochasticcharacteristicsinasystem.TheGaussiandataandtheRosslerdatawereusedtoshowtheavailabilityandeffectivityofthismethod.Accordingtotheanalysisbythismethodbasedontheshort-circuitingcurrentsignalsundertheconditionsofthesamevoltageanddifferentwirefeedspeeds,itisdemonstratedthattheelectricalsignalstimeseriesexhibitapparentlyrandomnesswhentheweldingparametersdonotmatch.However,theelectricalsignalstimeseriesaredeterministicwhenamatchisfound.Thestabilityofshort-circuitingtransferprocesscouldbejudgedexactlybythemethodofsurrogatedata.

  • 标签: 替代数据法 时间序列 电信号 随机信号 测试 随机特性
  • 简介:Theuniformcauliflower-likeZnOfilmsweredepositedontheconductingsubstratebyachemicalbathdepositioninurea/watersolution.ThefilmstructureandmorphologywerecharacterizedbyX-raydiffraction,thermogravimetricdifferentialthermalanalysis,energydispersivespectroscopy,selectedareaelectrondiffraction,fieldemissionscanningelectronmicroscopyandhighresolutiontransmissionelectronmicroscopy.TheaveragediameterofZnOnanoparticlesandthepetalthicknesswere25nmand8mm,respectively.Dyesensitizedsolarcellsbasedonthecauliflower-likeZnOfilmelectrodeshowedtheshort-circuitcurrentdensityof6.08mA/cm2,theopen-circuitphotovoltageof0.66V,thefillfactorof0.55andtheoverallconversionefficiencyof2.18%.TheequivalentcircuitofcellsbasedontheZnOfilmelectrodeswasmeasuredbytheelectrochemicalimpedancespectroscopy.Furthermore,theanalysisofequivalentcircuitprovidedtherelationshipbetweenthecellperformanceandtheinterfacialresistance,suchastheshuntresistanceandtheseriesresistance.

  • 标签: 染料敏化太阳能电池 化学浴沉积 等效电路 光伏性能 薄膜制备 氧化锌
  • 简介:Inthisstudy,wereportanefficientCdTe-SnO2quantumdot(QD)solarcellfabricatedbyheat-assisteddrop-castingofhydrothermallysynthesizedCdTeQDsonelectrospunSnO2nanofibers.Theas-preparedQDsandSnO2nanofiberswerecharacterizedbydynamiclightscattering(DLS),UV–Visspectroscopy,photoluminescence(PL)spectra,X-raydiffraction(XRD)andtransmissionelectronmicroscopy(TEM).TheSnO2nanofibersdepositedonfluorine-dopedtinoxide(SnO2)andsensitizedwiththeCdTeQDswereassembledintoasolarcellbysandwichingagainstaplatinum(Pt)counterelectrodeinpresenceofcobaltelectrolyte.TheefficiencyofcellswasinvestigatedbyanchoringQDsofvaryingsizesonSnO2.Thebestphotovoltaicperformanceofanoverallpowerconversionefficiencyof1.10%,anopen-circuitvoltage(Voc)of0.80V,andaphotocurrentdensity(JSC)of3.70mA/cm2wereobtainedforcellswithSnO2thicknessof5–6μmandcellareaof0.25cm2understandard1Sunillumination(100mW/cm2).Theefficiencywasinvestigatedforthesamesystemsunderpolysulfideelectrolyteaswellforacomparison.

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  • 简介:摘要:军工行业用印制电路板具有多品种、小批量、需求广以及元器件种类繁多等特性。印制电路板在设计过程和工艺过程中产生的诸多问题,若无法在前期得到预防和消除,那么一定会在后续的批量制造阶段暴露,而这些问题将会对生产制造过程带来极大的负担,从而严重制约生产周期和产品质量。本文将从产品质量管理、精益生产制造等角度阐述印制电路板的设计、工艺与制造,以期从设计人员角度改变部分印制电路设计的盲区,逐步改善某些旧习沉疴。同时,观察兄弟单位在印制电路设计、工艺与制造上的新手段、新做法,利用软件审核为手段、PDCA质量管理方法为核心的手段,建立有效机制进行审查、汇总、跟踪和反馈,疏通设计、工艺与制造之间的沟通渠道,提升印制电路板的可制造性设计能力。

  • 标签: 工艺管理 可制造性设计 Valor