PCB chinhu chakakosha chemagetsi chikamu uye kwakabva zvinhu zvese zvemagetsi.Yakava yakawanda uye yakaoma zvikuru kubva payakaonekwa munyika yekupedzisira.Kubva kune imwechete-layer kusvika kaviri-layer, ina-layer, uyezve kune yakawanda-layer, kuoma kwekugadzira kuri kuwedzerawo.chikuru.Kune wiring kumativi ese maviri epaneru mbiri, iyo inobatsira zvikuru kwatiri kuti tinzwisise uye tigone iyo wiring musimboti.Ngatitarisei iyo wiring musimboti wePCB kaviri bhodhi.
Iyo PCB yepasi yakapetwa kaviri bhodhi yakagadzirwa muchimiro chefenzi yakatenderedza bhokisi chimiro, ndiko kuti, divi rePCB rakanyanya kufanana nepasi, uye rimwe divi ndiro vertical pasi waya kopi bhodhi, uye ipapo ivo vanobatanidzwa-yakabatana. ine metallized vias (kuburikidza-gomba kuramba idiki).
Tichifunga kuti panofanirwa kuve newaya yepasi padhuze neimwe IC chip, kazhinji waya yepasi inogadzirwa yega 1 ~ 115cm, izvo zvichaita kuti nzvimbo yechiratidzo loop ive diki uye kubatsira kuderedza mwaranzi.Nzira yekugadzira network inofanira kunge iri pamberi pemutsara wechiratidzo, kana zvisina kudaro zvakaoma kuita.
Signal line wiring musimboti:
Mushure mekurongeka kunonzwisisika kwezvikamu zvakatemwa, zvichiteverwa nekaviri-layer board, ipapo dhizaini yevhu rekudzivirira waya, uye ipapo waya dzakakosha (sensitive wire, high frequency wire uye common wire kumusana).Waya dzinokosha dzinofanira kunge dziine simba rakaparadzana, kudzoka kwepasi, waya uye ipfupi kwazvo, saka dzimwe nguva pasi padyo newaya yakakosha iri pedyo newaya yechiratidzo kuitira kuti diki inoshanda loop iumbwe.
Iyo ina-layer board ine kaviri kumusoro kumusoro, uye pasi peiyo wiring board ndiyo mutsara wechiratidzo.Chekutanga pane zvese, kiyi yekristaro jira, crystal circuit, wachi yedunhu, chiratidzo mutsara uye mamwe maCPU anofanirwa kuenderana nemusimboti wenzvimbo diki yekuyerera sezvinobvira.
Kana iyo yekudhinda ndiro IC dunhu iri kushanda, nzvimbo yekutenderera inotaurwa kakawanda, inova iyo pfungwa yekusiyanisa mode radiation.Zvakadai setsanangudzo yekusiyanisa modhi radiation: dhizaini inoshanda ikozvino inoyerera muchiratidzo chedunhu, uye iyo chiratidzo loop inoburitsa magetsi emagetsi, ayo anokonzerwa neazvino mutsauko modhi, saka iyo yekusiyanisa modhi chiratidzo loop inonzi inogadzirwa nemwaranzi. Mwaranzi, uye kusimba kwenzvimbo yemwaranzi Iyo yekuverenga formula ndeye: E1 = K1, f2, ia/gamma
Type: E1 - differential mode kopi bhodhi, iyo spatial gamma radiation munda simba rePCB redunhu rinogona kuwonekwa kuburikidza nemusiyano modhi radiation fomula, iyo radiation yemunda simba inoenderana neanoshanda frequency f2, A circulation nzvimbo, uye inoshanda ikozvino, I senge nguva yekuziva basa Iyo frequency f uye saizi yenzvimbo yekuyerera ndizvo zvinhu zvakakosha zvatinogona kudzora zvakananga mukugadzira.Panguva imwecheteyo, chero basa rekuyerera richisangana nekuvimbika, kukurumidza, uye ikozvino, iyo yakakura zviri nani, iyo yakamanikana kurova pamucheto wechiratidzo, yakakura chikamu che harmonic, iyo yakawanda yakafara, yakakwirira iyo electromagnetic. radiation, inofanirwa kutaurwa (pamusoro) iyo yakakura simba reiyo ikozvino, iyo yatisingadi.
Kana zvichibvira, komberedza zvisungo zvakakosha newaya yepasi.Paunenge uchifambisa PCB kopi bhodhi imwe mushure meimwe, iyo inowanikwa pasi waya inovhara mazamu ese, asi kutarisirwa kunofanira kutorwa kune ese aya mawaya epasi, zvikonzero zvinogadzira pfupi uye yakakura yakaderera impedance coupling, inogona kuwana mhedzisiro yakanaka (Cherechedza: Pane chinodiwa chenzvimbo chinofanirwa kusangana nemamiriro, senge creepage distances).
Nguva yekutumira: Jun-09-2022