Ubushobozi bwo gusimbuka cyangwa gukuramo ubushobozi bushobora gukemura ibibazo bimwe na bimwe, ariko hagomba gusuzumwa inzitizi rusange ya capacator, vias, padi, hamwe ninsinga.

Iyi ngingo izamenyekanisha EMC Igishushanyo cya PCB tekinoloji kuva mubice bitatu: ingamba zo gushyiraho PCB, ubuhanga bwimiterere namategeko yo gukoresha.

Ingamba zo gushyiraho PCB

Umubyimba, ukoresheje inzira n'umubare w'ibyiciro mubishushanyo mbonera byumuzunguruko ntabwo ari urufunguzo rwo gukemura ikibazo.Gutondekanya neza ni ukwemeza kuzenguruka no gukuramo bisi yamashanyarazi no kugabanya ingufu zinzibacyuho kumurongo wamashanyarazi cyangwa hasi.Urufunguzo rwo gukingira amashanyarazi yumuriro wikimenyetso no gutanga amashanyarazi.

Urebye ibimenyetso byerekana ibimenyetso, ingamba nziza zo gutondeka zigomba kuba ugushira ibimenyetso byose byerekana kumurongo umwe cyangwa nyinshi, kandi ibyo byiciro biri iruhande rwimbaraga cyangwa hasi.Kubitanga amashanyarazi, ingamba nziza zo gutondeka zigomba kuba nuko urwego rwingufu zegeranye nubutaka, kandi intera iri hagati yumurongo wamashanyarazi nubutaka ni ntoya ishoboka.Ibi nibyo tuvuga kubyerekeye "stratégie".Hano hepfo tuzavuga byumwihariko ingamba nziza za PCB.

1. Indege ya projection yumurongo wiring igomba kuba mumwanya wikigero cyindege.Niba urwego rwicyuma rutari mukarere ka projection yindege igaruka, hazaba imirongo yerekana ibimenyetso hanze yumwanya wa projection mugihe cyo gukoresha insinga, bizatera ibibazo "imirasire yumurongo", kandi bizongera ubuso bwikimenyetso, bikavamo yongeyeho imirasire itandukanye.

2. Gerageza kwirinda gushiraho ibice byegeranye.Kuberako ibimenyetso bisa nkibisobanuro byerekeranye nicyuma cyegeranye bishobora gutera ibimenyetso byambukiranya ibimenyetso, niba ibyuma byegeranye byegeranye bidashobora kwirindwa, intera iringaniye hagati yibi byuma byombi igomba kongerwa muburyo bukwiye, kandi intera iri hagati yicyuma n’umuzunguruko w’ibimenyetso igomba kugabanuka.

3. Ibice byindege byegeranye bigomba kwirinda guhuzagurika kwindege zabo.Kuberako iyo ibiteganijwe byuzuzanya, ubushobozi bwo guhuza hagati yurwego bizatera urusaku hagati yabashakanye guhuza hamwe.

Igishushanyo mbonera cyubuyobozi

Iyo inshuro yisaha irenze 5MHz, cyangwa igihe cyo kuzamuka kwikimenyetso ntikiri munsi ya 5ns, kugirango ugenzure neza agace kerekana ibimenyetso neza, muri rusange hasabwa igishushanyo mbonera cyibice byinshi.Amahame akurikira akwiye kwitabwaho mugushushanya imbaho ​​nyinshi:

1. Urufunguzo rwingenzi (umurongo aho umurongo wisaha, bisi, umurongo wibimenyetso byerekana umurongo, umurongo wa radiyo yumurongo, gusubiramo umurongo wibimenyetso, chip guhitamo umurongo wibimenyetso hamwe nimirongo itandukanye yo kugenzura biri) bigomba kuba byegeranye nindege yuzuye yubutaka, byaba byiza hagati yindege ebyiri zubutaka, Nkuko bigaragara ku gishushanyo 1.

Imirongo yingenzi yibimenyetso ni imirasire ikomeye cyangwa imirongo yerekana ibimenyetso cyane.Kwifuza hafi yindege yubutaka birashobora kugabanya ibimenyetso byerekana ibimenyetso, kugabanya ubukana bwimirasire cyangwa kunoza ubushobozi bwo kurwanya.

2. Indege yingufu igomba gukururwa ugereranije nindege yegeranye nayo (agaciro gasabwa 5H ～ 20H).Gusubira inyuma kwindege yingufu ugereranije nindege yayo igaruka birashobora guhagarika neza ikibazo "imirasire yumurongo", nkuko bigaragara ku gishushanyo cya 2.

Byongeye kandi, indege nyamukuru ikora yamashanyarazi (indege ikoreshwa cyane) igomba kuba hafi yindege yayo kugirango igabanye neza agace k’umuriro w'amashanyarazi, nkuko bigaragara ku gishushanyo cya 3.

3. Niba nta murongo wibimenyetso ≥50MHz kumurongo wa TOP na BOTTOM.Niba aribyo, nibyiza kugendera hejuru yumurongo mwinshi hagati yindege zombi kugirango uhagarike imirasire yumwanya.

Ikibaho kimwe hamwe nuburyo bubiri bwibishushanyo mbonera

Kubishushanyo mbonera yimbaho ​​imwe hamwe nimbaho ​​ebyiri, igishushanyo cyimirongo yingenzi yerekana ibimenyetso nimirongo y'amashanyarazi bigomba kwitabwaho.Hagomba kubaho insinga yubutaka kuruhande kandi ibangikanye nimbaraga zamashanyarazi kugirango igabanye ubuso bwumuriro wamashanyarazi.

"Ubuyobozi bwa Ground Line" bugomba gushyirwa kumpande zombi zumurongo wingenzi wibimenyetso byumurongo umwe, nkuko bigaragara ku gishushanyo cya 4. Umurongo wingenzi wibimenyetso byumurongo wibice bibiri ugomba kuba ufite ubuso bunini bwubutaka ku ndege ya projection , cyangwa uburyo bumwe nkurubaho rumwe, shushanya "Guide Ground Line", nkuko bigaragara ku gishushanyo cya 5. "Umuzamu wubutaka" ku mpande zombi zumurongo wingenzi wibimenyetso urashobora kugabanya agace kerekana ibimenyetso kuruhande rumwe, kandi nanone wirinde kunyura hagati yumurongo wibimenyetso nindi mirongo yerekana ibimenyetso.

Ubuhanga bwo gutunganya PCB

Mugihe utegura imiterere ya PCB, ugomba kubahiriza byimazeyo ihame ryo gushushanya ryo gushyira kumurongo ugororotse werekeza icyerekezo cyerekana ibimenyetso, hanyuma ukagerageza kwirinda gusubira inyuma, nkuko bigaragara ku gishushanyo cya 6. Ibi birashobora kwirinda guhuza ibimenyetso bitaziguye kandi bigira ingaruka kumiterere yikimenyetso .

Byongeye kandi, kugirango hirindwe kwivanga no guhuza hagati yumuzunguruko nibikoresho bya elegitoronike, gushyira imiyoboro hamwe nimiterere yibigize bigomba gukurikiza amahame akurikira:

1. Niba intera "isukuye" yateguwe ku kibaho, ibice byo kuyungurura no kwigunga bigomba gushyirwa kumurongo wigunga hagati y "ubutaka bwera" nubutaka bukoreramo.Ibi birashobora kubuza ibikoresho byo kuyungurura cyangwa kwigunga guhuza hamwe binyuze mumurongo wa planar, bigabanya ingaruka.Mubyongeyeho, kuri "butaka bwera", usibye gushungura no kurinda ibikoresho, ntakindi gikoresho gishobora gushyirwa.

2. Iyo imirongo myinshi ya module ishyizwe kuri PCB imwe, imiyoboro ya sisitemu hamwe nizunguruka zisa, imiyoboro yihuta kandi yihuta igomba gushyirwaho ukwayo kugirango hirindwe kwivanga hagati yumuzunguruko wa sisitemu, imiyoboro ya analogi, imiyoboro yihuta, na buke -umuzunguruko wihuta.Byongeye kandi, iyo imiyoboro miremire, iringaniye, kandi yihuta ibaho ku kibaho cyumuzunguruko icyarimwe, kugirango twirinde urusaku rwinshi rwumuzunguruko uturuka kumurongo, ihame ryimiterere mubishusho 7 rigomba kuba.

3. Akayunguruzo k'umuzunguruko w'icyambu cyinjiza icyambu cyumuzunguruko kigomba gushyirwa hafi yimbere kugirango wirinde kongera guhuza umuzunguruko.

4. Gushungura, kurinda no kwigunga ibice byumuzunguruko bishyirwa hafi yimbere, nkuko bigaragara ku gishushanyo cya 9, gishobora kugera ku ngaruka zo kurinda, gushungura no kwigunga.Niba hari akayunguruzo hamwe nu kurinda uruziga kuri interineti, ihame ryo kubanza kurinda hanyuma gushungura bigomba kuba.Kuberako uruzinduko rwokwirinda rukoreshwa mumashanyarazi arenze urugero no guhagarika birenze urugero, niba uruzinduko rwuburinzi rushyizwe nyuma yumuzunguruko, uruzunguruko ruzangirika bitewe na voltage nyinshi kandi birenze.

Mubyongeyeho, kuva ibyinjijwe nibisohoka imirongo yumuzunguruko bizagabanya intege zo kuyungurura, kwigunga cyangwa kurinda ingaruka mugihe bihujwe hamwe, menya neza ko ibyinjira nibisohoka imirongo yumuzunguruko (filteri), kwigunga no kurinda umuzenguruko ntibikora. abashakanye hamwe na hamwe mugihe cyimiterere.

5. Inzira yumvikanisha cyangwa ibice (nko gusubiramo imirongo, nibindi) bigomba kuba byibura kilometero 1000 uvuye kuruhande rwibibaho, cyane cyane inkombe yimbere.


6 imirongo.

7. Ibiyungurura bigomba gushyirwa kuruhande kugirango birinde uruzunguruko rwongeye kutabangamirwa.

8. Gumana ibikoresho bikomeye byimirasire nka kristu, oscillator ya kristu, relay, guhinduranya ibikoresho byamashanyarazi, nibindi kure yumwanya wibibaho byibuze mil.Muri ubu buryo, intambamyi irashobora gukwirakwira hanze cyangwa ikigezweho gishobora guhuzwa na kabili isohoka kugirango imurikire hanze.

NYAKURI: Icapa ryumuzingo ryacapwe, Igishushanyo cya PCB, Inteko ya PCB