标签: couplers

摘要：一对MOSFET的驱动IC和铁氧体磁珠变压器非正统的应用程序产生一个单声道，数字信号耦合隔离。Maxim>AppNotes>COMMUNICATIONSCIRCUITSHOT-SWAPANDPOWERSWITCHINGCIRCUITSKeywords:magneticcoupling,digitalisolation,digitalsignalcouplers,MOSFETdrivers,ferrite-beadJun20,2005transformersAPPLICATIONNOTE3533IsolatedDigital-SignalCouplerTransfers30nstoDCAbstract:AnunorthodoxapplicationofapairofMOSFET-driverICsandaferrite-beadtransformeryieldsasingle-channel,isolateddigital-signalcoupler.Optocouplersaretheusualchoiceforcouplingdigitalsignalsbetweenisolatedcircuitswithdifferentgroundlevels.Optocouplershavedisadvantages,however.Theirmostimportantparameters,currenttransferandpropagationtime,changewithaging.Theyhavearelativelyhighstaticpowerconsumptionand,formosttypes,limitedspeed.……

wigglytechniqueforbroadbandnon_uniformlinecouplersWigglytechniqueforbroadbandnon-uniformlinecouplersJia-LiangChen,Sheng-FuhChang,Yng-HueyJengandChun-YoLinAnewandsuccessfulwigglytechniqueisproposedforthedesignofbroadbandnon-uniformlinecouplers,wherethecoupleriswiggledwithrectangularteethontheinnerandouteredgesofcoupledconductors.Comparedwithotherreportedquadraturecouplers,thisdesignoffersafullyplanarstructurewithoutbondwiresordielectricoverlaps.Afabricated2……

RFDirectionalCouplersand3dBHybridsOverviewApplicationNoteRFDirectionalCouplersand3dBHybridsOverviewDirectionalCouplersForprovidingasampleofthepowerpropagatinginonedirectiononatransmissionline.M560V2.003dBHybridsFordividingasignalintotwosignalsofequalamplitudeandaconstant90°or180°phasedifferential.Forquadraturecombiningorperformingsummation/differentialcombining.coupler”,“90°hybrid”,and“180°hybrid”isbasedonconvention.However,the90°and180°hybridscouldbethoughtofas3dBdirectionalcouplers.Despitethesesimilarities,theparametersusedtodescribesignalflowindirectionalcouplersandtheapplication,inactualuse,issufficientlydifferenttowarrantseparateconsiderations.180°HybridsFunctionalDescriptionA180°hybridisareciprocalfour-……

Coupled-Strip-Transmission-LineFiltersandDirectionalCouplers1956lRETRANSACTIONSONMICROWAVETHEORYANDTECHNIQUESCoupled43trip-Transmission-LineandDirectionalE.M.T.JONES~ANDFiltersCouplersJ.T.BOLLJAHN~Summary―Tkispaperdescribesthetheoryofoperationofcoupledstriplinetiltersanddh’ectionalcouplers,andpresentsinformationfromwhichthesecomponentsmaybeeasilydesigned.Low-pass,band-pass,all-pass,andall-stopfiltercharacteristicsareobtainedfromthesecoupledlineseitherbyplacingopenorshortcircuitsattwoofthefouravailableterminalpairs,orbyinterconnectingtwooftheterminalpairs.Directionalcouplershavingperfectdk-ectivityandconstantinputimpedanceatallfrequencies,andforalldegreesofcoupliig,areobtainedbyplacingequalresistiveloadsateachofthefourterminalp……