Zoganizira pakutsata kwa EMI/EMC m'ma board ozungulira osinthasintha

Mu positi iyi yabulogu, tikambirana za kutsata kwa EMI/EMC pama board ozungulira okhazikika komanso chifukwa chomwe akuyenera kuyankhidwa.

Kuwonetsetsa kutsata miyezo ya electromagnetic interference (EMI) ndi electromagnetic compatibility (EMC) ndikofunikira pazida zamagetsi ndi magwiridwe antchito ake.Mkati mwamakampani a PCB (Printed Circuit Board), ma board ozungulira okhazikika ndi gawo linalake lomwe limafunikira kuganiziridwa mozama komanso kusamalitsa mwatsatanetsatane.Ma board awa amaphatikiza ubwino wa mabwalo okhwima komanso osinthika, kuwapangitsa kukhala odziwika bwino pamapulogalamu omwe malo ndi ochepa komanso kukhazikika ndikofunikira.

Chofunikira chachikulu pakukwaniritsa kutsata kwa EMI/EMC m'ma board ozungulira okhazikika ndikuyika maziko oyenera.Ndege zapansi ndi zotchinjiriza ziyenera kupangidwa mosamala ndikuyikidwa kuti zichepetse ma radiation a EMI ndikukulitsa chitetezo cha EMC.Ndikofunikira kupanga njira yochepetsetsa ya EMI pakalipano ndikuchepetsa kukhudzidwa kwake padera.Mwa kuonetsetsa kuti pakhale dongosolo lokhazikika lokhazikika pa bolodi lonse la dera, chiopsezo cha mavuto okhudzana ndi EMI chikhoza kuchepetsedwa kwambiri.

Mbali ina yofunika kuiganizira ndi kuyika ndi kuwongolera ma sigino othamanga kwambiri.Zizindikiro zokhala ndi nthawi yofulumira komanso yotsika zimatha kutengeka ndi ma radiation a EMI ndipo zimatha kusokoneza zinthu zina pa bolodi.Mwa kulekanitsa mosamala ma siginecha othamanga kwambiri kuchokera kuzinthu zovutirapo monga mabwalo a analogi, chiwopsezo cha kusokoneza chingachepe.Kuonjezera apo, kugwiritsa ntchito njira zowonetsera zosiyana kungathe kupititsa patsogolo ntchito za EMI / EMC chifukwa zimapereka chitetezo chabwino cha phokoso poyerekeza ndi zizindikiro zomaliza.

Kusankhidwa kwamagulu ndikofunikiranso pakutsata kwa EMI/EMC pama board ozungulira okhazikika.Kusankha zigawo zomwe zili ndi makhalidwe oyenera a EMI/EMC, monga kutulutsa mpweya wochepa wa EMI ndi chitetezo chabwino ku kusokoneza kwakunja, kungathandize kwambiri ntchito yonse ya gululo.Zida zokhala ndi mphamvu zomangidwira za EMI/EMC, monga zosefera zophatikizika kapena zotchingira, zitha kupititsa patsogolo kapangidwe kake ndikuwonetsetsa kuti zikutsatira malamulo.

Kutsekereza koyenera ndi chitetezo ndizofunikiranso.M'mabwalo ozungulira okhazikika, magawo osinthika amatha kupsinjika ndi makina ndipo amatha kutengeka ndi ma radiation a EMI.Kuwonetsetsa kuti magawo osinthika amakhala otetezedwa mokwanira komanso otetezedwa kungathandize kupewa zovuta zokhudzana ndi EMI.Kuphatikiza apo, kutchinjiriza koyenera pakati pa magawo oyendetsa ndi ma siginecha kumachepetsa chiopsezo cha crosstalk ndi kusokoneza ma sign.

Okonza akuyeneranso kulabadira masanjidwe onse ndi kusanjika kwa matabwa olimba-flex.Pokonzekera mosamala zigawo ndi zigawo zosiyanasiyana, ntchito ya EMI/EMC ikhoza kuyendetsedwa bwino.Zigawo zazizindikiro ziyenera kuyikidwa pakati pa nthaka kapena mphamvu kuti muchepetse kulumikizana kwa ma siginecha ndikuchepetsa chiopsezo cha kusokoneza.Kuphatikiza apo, kugwiritsa ntchito malangizo ndi malamulo a EMI/EMC kungathandize kuwonetsetsa kuti masanjidwe anu akukwaniritsa zofunikira.

Kuyesa ndi kutsimikizira kumagwira ntchito yofunika kwambiri pakukwaniritsa kutsata kwa EMI/EMC pama board ozungulira okhazikika.Pambuyo pomaliza kukonza, kuyezetsa koyenera kuyenera kuchitidwa kuti zitsimikizire momwe gulu likuyendera.Kuyesa kutulutsa kwa EMI kumayesa kuchuluka kwa ma radiation a electromagnetic opangidwa ndi board board, pomwe kuyezetsa kwa EMC kumayesa chitetezo chake ku kusokonezedwa kwakunja.Mayesowa atha kuthandizira kuzindikira zovuta zilizonse ndikulola kusinthidwa kofunikira kuti akwaniritse kutsatiridwa.

Powombetsa mkota, kuwonetsetsa kuti EMI/EMC ikutsatiridwa ndi ma board ozungulira okhazikika kumafuna kulingalira mozama pazinthu zosiyanasiyana.Kuchokera pakuyika koyenera ndi kusankha zigawo kupita kumayendedwe amawu ndi kuyesa, sitepe iliyonse imakhala ndi gawo lofunika kwambiri pakukwaniritsa gulu lomwe limakwaniritsa malamulo.Pothana ndi malingalirowa ndikutsatira machitidwe abwino, opanga amatha kupanga ma board ozungulira olimba komanso odalirika omwe amachita bwino m'malo opsinjika kwambiri pomwe akukwaniritsa zofunikira za EMI/EMC.