Kuchotsa kusokoneza kwa electromagnetic (EMI) kuchokera ku PCB (yosindikiza dera losindikizidwa) kungakhale kovuta ndipo kumafuna magawo angapo.Zina mwazofunikira kwambiri mwa njirazi ndi izi:
Dziwani komwe EMI imachokera:
Gawo loyamba pakuchotsa kwa EMI ndikuzindikira zomwe zingasokoneze.Gawoli limaphatikizapo kuyang'ana mawonekedwe ozungulira ndikuzindikira zinthu monga ma oscillator, owongolera osinthira ndi ma sign a digito omwe amakonda kupanga EMI.
Konzani kayikidwe kagawo:
Kuyika zigawo pa PCB kumawapatsa mwayi wabwino kwambiri.Kutchinga kapena kusefa kumathandizira kusiyanitsa mabwalo okhudzidwa, kapena mungafunike kusuntha zigawo kuti muchepetse danga pakati pawo.
1. Gwiritsani ntchito njira zoyenera zoyatsira pansi
Kuyika pansi ndikofunikira kuti muchepetse EMI.Kuti muchepetse kuthekera kwa EMI muyenera kugwiritsa ntchito njira yoyenera yoyambira.Gawoli limaphatikizapo kugwiritsa ntchito ndege yodzipatulira pansi kuti igawanitse zizindikiro za analogi ndi digito, kapena kulumikiza zigawo zambiri ku ndege imodzi yapansi.
2. Gwiritsani ntchito chitetezo ndi kusefa
Nthawi zina, zigawo zomwe zimagwiritsidwa ntchito poteteza kapena kusefa zingathandize kuthetsa EMI.zigawo zosefera zimathandizira kuchotsa ma frequency osafunika pa siginecha, pomwe kutchingira kungathandize kuletsa EMI kuti isafikire mabwalo ovuta.
3. Kuyesedwa ndi kutsimikizira
Pambuyo pokonzekera bwino, muyenera kuonetsetsa kuti mwachotsa EMI molondola.Kuchotsa kumeneku kungafunike kuyeza mpweya wamagetsi wa PCB ndi EMI analyser, kapena kuyesa PCB muzochitika zenizeni padziko lapansi kuonetsetsa kuti ikugwira ntchito monga momwe anakonzera.
Kuyesa EMI mu mapangidwe a PCB
Kodi muyenera kuyesa EMI pamapangidwe anu a PCB ndipo ngati ndi choncho, zotsatirazi zikuyenera kukuthandizani kuti muyende.Pambuyo pake, mudzafuna kutsatira njira zotsatirazi:
1. Kufotokozera za mayeso
Fotokozani kuchuluka kwa ma frequency, njira zoyesera ndi malire.Mulingo wazogulitsa uyenera kutsimikizira zoyeserera.
2. Zida zoyesera
Khazikitsani cholandila cha EMI, jenereta ya ma sign, spectrum analyzer ndi oscilloscope.Zida ziyenera kuyesedwa ndikutsimikiziridwa musanayesedwe.
3. Konzani PCB
Zolinga zoyesera, onetsetsani kuti mwayika zigawo zonse molondola ndikupatsa mphamvu PCB moyenera poyilumikiza ku zida zoyesera.
4. Yesani kuyesa kwa mpweya
Kuti muyese kuyesa kotulutsa mpweya, ikani PCB m'chipinda cha anechoic ndikutumiza chizindikirocho ndi jenereta yolumikizira pomwe mukuyesa mulingo wotulutsa ndi cholandila EMI.
5. Kuyesedwa kwa umuna
Kuyesedwa kotulutsa mpweya polowetsa ma siginecha mu mphamvu ndi mizere yama siginecha ya PCB, ndikuyesa mulingo wotulutsa ndi wolandila EMI.
6. Unikani zotsatira zake
Unikani zotsatira za mayeso kuti muwone ngati mapangidwe a PCB akukwaniritsa zoyeserera.Ngati zotsatira za mayeso sizikukwaniritsa zofunikira, zindikirani komwe kumachokera mpweyawo ndikuchitapo kanthu koyenera, monga kuwonjezera chitetezo cha EMI kapena kusefa.
Mbiri Yakampani
Zhejiang NeoDen Technology Co., Ltd. yakhala ikupanga ndi kutumiza kunja makina osiyanasiyana ang'onoang'ono osankha ndi malo kuyambira 2010. Kutengera mwayi wathu olemera odziwa R&D, kupanga ophunzitsidwa bwino, NeoDen imapeza mbiri yabwino kuchokera kwa makasitomala padziko lonse lapansi.
ndi kupezeka kwapadziko lonse lapansi m'maiko opitilira 130, magwiridwe antchito abwino kwambiri, kulondola kwambiri komanso kudalirika kwa makina a NeoDen PNP amawapangitsa kukhala abwino pa R&D, kujambula akatswiri komanso kupanga magulu ang'onoang'ono mpaka apakatikati.Timapereka yankho laukadaulo la zida za SMT imodzi.
Onjezani: No.18, Tianzihu Avenue, Tianzihu Town, Anji County, Huzhou City, Province la Zhejiang, China
Foni: 86-571-26266266
Nthawi yotumiza: May-06-2023