标签: sheilding

MechinicalDesignforEMIsheildingMechanicalDesignTipsforEMIShieldingByFredBroekhuizenHollandShieldingEverycompanytodayseemstobeinvolvedwithCE/EMIdemands.Theuseofelectronicsincreases,andsodothefrequencies.Therefore,thesedemandshavetobetakenintoaccountatanearlystageduringthedevelopmentofnewproducts.Inmanycases,itisimpossibletosolveEMIproblemsataPCBlevel,andisitnecessarytoshieldtheenclosuresandcables.ApplicationsShieldingisafastwaytocomplywithlegaldemandsortopreventelectromagneticinterference.Becausenolong-lastingdevelopmentisrequired,itisacost-effectivemethod.Thereforeshieldingisusedforsmallerseriesorifaquickmarketintroductionisneeded.Besidesthat,itisalsousedforapplianceswithhighradiationorsens……

AN_347_sheildingandguardingANALOGDEVICESONETECHNOLOGYWAYP.O.BOX9106AN-347APPLICATIONNOTENORWOOD,MASSACHUSErrS02062-91066171329-4700ShieldingandGuardingHowtoExcludeInterference-TypeNoiseWhattoDoandWhytoDoIt-ARationalApproachbyAlanRichThisisthesecondoftwoarticlesdealingwithinterferencenoise.InthelastissueofAnalogDialogue(Vol.16,No.3,pp.16-19),wediscussedthenatureofinterference,describedtherelationshipbetweensources,couplingchannels,andreceivers,andconsideredmeansofcombattinginterferenceinsystemsbyreducingoreliminatingoneofthosethreeelements.Oneofthemeansofreducingnoisecouplingisshielding.Ourpurposeinthisarticleistodescribethecorrectusesofshieldingtoreducenoise.Themajortopicswewilldiscussinclud……