Mhangura yakafa inofanira kubviswa mukati PCB dhizaini?

Vamwe vanhu vanoti inofanirwa kubviswa nezvikonzero zvinotevera: 1. Matambudziko EMI achakonzerwa. 2, wedzera kugona kwekuvhiringidza. 3. Mhangura yakafa haibatsiri.

Vamwe vanhu vanoti inofanirwa kuchengetwa, zvikonzero zvacho zvingave: 1. Dzimwe nguva nzvimbo huru isina chinhu haitaridzike. 2, wedzera michina zvivakwa zvebhodhi, kudzivirira chinoshamisa chekusaenzana kukotama.

Chekutanga, hatidi kufa mhangura (chitsuwa), nekuti chitsuwa chiri pano kuti chigadzire kanyanga, kana simba remwaranzi rakatenderedza mutsetse rakakura, rinowedzera simba remwaranzi kutenderedza; Uye ichaumba iyo antenna yekugamuchira mhedzisiro, inozounza kupesana kwemagetsi emagetsi kune yakatenderedza wiring.

Chechipiri, tinogona kudzima zvimwe zviwi zvidiki. Kana isu tichida kuchengeta iyo yemhangura kupfeka, chitsuwa chinofanira kuve chakabatana kwazvo neGND kuburikidza nepasi gomba kuti igadzire nhovo.

Yetatu, yakakwira-frequency, wiring yekuparadzira capacitance pane yakadhindwa wedunhu bhodhi ichashanda, kana iyo urefu iri inopfuura 1/20 yeruzha frequency inoenderana wavelength, inogona kuburitsa iyo antenna mhedzisiro, ruzha ruchaburitsa kunze kuburikidza newiring, kana paine vakaipa kumisikidza mhangura yakapfekerwa muPCB, mhangura yakapfeka yakava chishandiso chekufambisa ruzha, saka, mune yakakwira frequency dunhu, usafunge, Iyo ivhu kumwe kwakabatana nepasi, iyi ndiyo “ivhu”, inofanirwa kunge iri pasi pe λ / 20 kupatsanurana, mugomba rewiring, uye pasi peiyo multilayer board “yakanaka grounding”. Kana iyo yemhangura kupfeka ikarapwa zvakanaka, iyo yemhangura yekumhara haingowedzere iyo yazvino chete, asi zvakare inoita basa rechipiri mukudzivirira kupindira.

Chechina, nekuchera gomba repasi, chengetedza chakafukidza mhangura yechitsuwa, kwete chete chingaitisa basa mukudzivirira kupindirana, asi zvakare zvinogona kudzivirira PCB deformation.