Konzani nkhani za EMI pakupanga kosinthika kwa PCB pamapulogalamu apamwamba kwambiri komanso kuthamanga kwambiri

Kupanga mayendedwe osinthika kumagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana chifukwa cha zabwino zake zambiri monga kusinthasintha, kupepuka, kukhazikika komanso kudalirika kwakukulu. Komabe, monga kupita patsogolo kulikonse kwaukadaulo, imabwera ndi zovuta zake komanso zovuta zake.Chovuta chachikulu pakupanga mayendedwe osinthika ndi kuponderezana kwa ma electromagnetic radiation ndi electromagnetic interference (EMI), makamaka pama frequency apamwamba komanso kuthamanga kwambiri. Mu positi iyi ya blog, tiwona njira zina zothanirana ndi vutoli ndikuwonetsetsa kuti ma flex circuit akuyenda bwino.

Tisanafufuze mayankho, tiyeni timvetsetse vuto lomwe lilipo. Electromagnetic radiation imachitika pamene mphamvu zamagetsi ndi maginito zomwe zimayenderana ndikuyenda kwamagetsi akuzungulira ndikufalikira mumlengalenga. EMI, kumbali ina, imatanthawuza kusokoneza kosayenera komwe kumachitika chifukwa cha ma radiation a electromagnetic awa. M'machitidwe othamanga kwambiri komanso othamanga kwambiri, ma radiation ndi kusokoneza koteroko kumatha kukhudza kwambiri magwiridwe antchito a flex circuit, kumayambitsa zovuta zogwirira ntchito, kuchepetsa ma sign, komanso ngakhale kulephera kwadongosolo.

Tsopano, tiyeni tifufuze njira zina zothetsera mavutowa pakupanga madera osinthika:

1. Ukadaulo woteteza:

Njira yabwino yopondereza ma radiation a electromagnetic ndi EMI ndikugwiritsa ntchito ukadaulo wotchinga pakupanga ndi kupanga mabwalo osinthika. Kuteteza kumaphatikizapo kugwiritsa ntchito zida zoyendetsera, monga mkuwa kapena aluminiyamu, kupanga chotchinga chomwe chimalepheretsa minda yamagetsi kuti isathawe kapena kulowa mudera. Kuteteza kopangidwa bwino kumathandiza kuwongolera mpweya wotuluka m'mabwalo ndikuletsa EMI yosafunikira.

2. Kuyika pansi ndi kudula:

Njira zoyenera zokhazikitsira pansi ndi zolumikizira ndizofunikira kuti muchepetse zotsatira za radiation yamagetsi. Ndege yapansi kapena yamagetsi imatha kukhala ngati chishango ndikupereka njira yochepetsera pang'onopang'ono yakuyenda kwakanthawi, potero kuchepetsa kuthekera kwa EMI. Kuphatikiza apo, ma decoupling capacitors amatha kuyikidwa mwanzeru pafupi ndi zida zothamanga kwambiri kuti athetse phokoso lambiri komanso kuchepetsa kukhudzidwa kwake padera.

3. Kamangidwe ndi kakhazikitsidwe kagawo:

Kamangidwe ndi kakhazikitsidwe kagawo ziyenera kuganiziridwa mosamala panthawi yopanga ma flex circuit. Zigawo zothamanga kwambiri ziyenera kukhala zolekanitsidwa kwa wina ndi mzake ndipo zizindikiro za zizindikiro ziyenera kusungidwa kutali ndi magwero a phokoso. Kuchepetsa kutalika ndi kuzungulira kwa mawonekedwe azizindikiro kumatha kuchepetsa kwambiri kuthekera kwa ma radiation yamagetsi ndi zovuta za EMI.

4. Cholinga cha zinthu zosefera:

Kuphatikizira zosefera monga kutsokomola wamba, zosefera za EMI, ndi mikanda ya ferrite zimathandizira kupondereza ma radiation a electromagnetic ndikusefa phokoso losafunikira. Zigawozi zimalepheretsa zizindikiro zosafunikira ndikupereka impedance kwa phokoso lapamwamba, kuteteza kuti lisakhudze dera.

5. Zolumikizira ndi zingwe zimakhazikika bwino:

Zolumikizira ndi zingwe zomwe zimagwiritsidwa ntchito popanga mayendedwe osinthika ndizomwe zingapangitse ma radiation a electromagnetic ndi EMI. Kuonetsetsa kuti zigawozi zakhazikika bwino komanso zotetezedwa kungachepetse zovuta zotere. Zishango za chingwe zopangidwa mwaluso komanso zolumikizira zapamwamba zokhala ndi malo okwanira zitha kuchepetsa bwino ma radiation a electromagnetic ndi zovuta za EMI.

Powombetsa mkota

Kuthetsa ma radiation a electromagnetic ndi zovuta zopondereza za EMI pakupanga madera osinthika, makamaka pamachitidwe othamanga kwambiri komanso kuthamanga kwambiri, kumafuna njira yokhazikika komanso yokhazikika. Kuphatikizika kwa njira zotchinjirizira, kuyika pansi koyenera ndi kudulira, masanjidwe mosamalitsa ndi kakhazikitsidwe kagawo, kugwiritsa ntchito zida zosefera, ndikuwonetsetsa kukhazikika koyenera kwa zolumikizira ndi zingwe ndi njira zofunika kwambiri zochepetsera zovutazi. Pogwiritsa ntchito mayankhowa, mainjiniya ndi opanga amatha kuwonetsetsa kuti magwiridwe antchito abwino kwambiri, odalirika komanso osinthika akugwira ntchito movutikira.