标签: plane

电磁兼容与印刷电路板：设计_图像平面_ImagePlane

EffectPowerPlaneInductancePDNs

【应用笔记】为高速通道设计优化由表面贴装焊盘引起的阻抗不连续(OptimizingImpedanceDiscontinuityCausedbySurfaceMountPadsforHigh-SpeedChannelDesigns)由于数据传输速率不断增加，如今的高速板设计师对升级他们的设计来满足不断增张的带宽需求，面临巨大挑战。Asdataratescontinuetoincrease,today’shigh-speedboarddesignersfacetremendouschallengesupgradingtheirdesignstomeetincreasingbandwidthrequirements.Whenimplementinghigh-speeddesigns,anysmalldiscontinuitiesinthephysicalgeometriesalongthetransmissionpathcansignificantlydegradethesignal.Thisdegradationincludeslossofsignalamplitude,reductionofsignalrisetime,andincreasedjitter.Asaresult,youmustbeabletoidentifythesediscontinuitiesinthehigh-speedchannelandprovidewaystomitigatetheireffectsforbettersignaltransmission.OptimizingImpedanceDiscontinuityCausedbySurfaceMountPadsforHigh-SpeedChannelDesignsMay2008,version1.0ApplicationNote530IntroductionAsdataratescontinuetoincrease,today’shigh-speedboarddesignersfacetremendouschallengesupgradingtheirdesignstomeetincreasingbandwidthrequirements.Whenimplementinghigh-speeddesigns,anysmalldiscontinuitiesinthephysicalgeometriesalongthetransmissionpathcansignificantlydegradethesignal.Thisdegradationincludes……

高通gpsOne資料_gpsOne_User_Plane_MS-MPC……

Acircularlypolarizedmicrostripantennawithaphotonicbandgapgroundplane……

PowerPCB目前已在我所推广使用，它的基本使用技术已有培训教材进行了详细的讲解，而对于我所广大电子应用工程师来说，其问题在于已经熟练掌握了TANGO之类的布线工具之后，如何转到PowerPCB的应用上来。所以，本文就此类应用和培训教材上没有讲到，而我们应用较多的一些技术技巧作了论述。……

摘要：DC-DC转换器的电场和磁场的极好来源。他们的EMI频谱开始在开关频率和经常超过100MHz的扩展。在印刷电路板（PCB）布局，以尽量减少电容式联轴器和磁性联轴器护理必须行使。电路的寄生电容和寄生电感，必须进行评估，因此，早在设计阶段可适当权衡。Maxim>AppNotes>AUTOMOTIVEGENERALENGINEERINGTOPICSPOWER-SUPPLYCIRCUITSPROTOTYPINGANDPCBOARDLAYOUTKeywords:printedcircuitboard,PCBlayout,parasiticinductance,parasiticcapacitance,EMI,DC-DC,dcdc,Mar01,2001converters,convertors,groundplane,groundloopAPPLICATIONNOTE735LayoutConsiderationsforNon-IsolatedDC-DCConvertersAbstract:DC-DCconvertersareanexcellentsourceofelectricfieldsandmagneticfields.TheirEMIspectrumbeginsattheswitchingfrequencyandoftenextendsover100MHz.Tominimizecapacitivecouplingsandmagneticcouplingscaremustbeexercisedinprintedcircuitboard(PCB)layout.Parasiticcapacitanceandparasiticinductanceofthecircuitmustbeevaluatedsothatthepropertrade-offcanbemadeearl……