Mukugadzirisa magadzirirwo ePCB, kurongeka kwezvikamu kwakakosha, izvo zvinotarisa kutsvinda uye kwakanaka dhigirii rebhodhi uye kureba uye huwandu hwewaya yakadhindwa, uye ine chimwe chinokanganisa pakuvimbika kwemuchina wese.
A yakanaka redunhu bhodhi, mukuwedzera pakuzadzikiswa kweiyo musimboti webasa, asiwo kufunga EMI, EMC, ESD (electrostatic discharge), chiratidzo chekuvimbika uye mamwe maitiro emagetsi, asiwo kufunga nezve mechanical chimiro, hombe simba chip kupisa. matambudziko ekuparara.
General PCB marongerwo edimendi zvinodiwa
1, verenga dhizaini tsananguro yedhizaini, sangana neyakakosha dhizaini, yakakosha module uye zvimwe zvimiro zvinodiwa.
2, isa iyo gidhi yekumisikidza kusvika ku25mil, inogona kuwiriraniswa kuburikidza negedhi poindi, yakaenzana nzvimbo;Iyo alignment mode yakakura pamberi pediki (michina mikuru nemichina mikuru inorongedzwa kutanga), uye nzira yekurongeka iri pakati, sezvakaratidzwa mumufananidzo unotevera.
3, sangana nenzvimbo yakarambidzwa kureba muganho, chimiro uye yakakosha mudziyo dhizaini, inorambidzwa nzvimbo zvinodiwa.
① Mufananidzo 1 (kuruboshwe) pazasi: Hurefu hwemuganho zvinodikanwa, zvakamisikidzwa zvakajeka mune mechaniki layer kana yekumaka layer, yakanakira gare gare kuyambuka-cheki;
(2) Pamberi pekugadzirisa, isa nzvimbo yakarambidzwa, inoda kuti chigadziro chive 5mm kubva kumucheto kwebhodhi, usagadzirisa chigadzirwa, kunze kwekunge zvakakosha zvinodiwa kana bhodhi rinotevera rekugadzira rinogona kuwedzera nzira;
③ Kurongeka kwechimiro uye maturusi akakosha anogona kugadzikwa nemarongedzero kana nemarongesheni ekunze furemu kana mutsara wepakati wezvikamu.
4, marongerwo anofanirwa kunge aine pre-layout kutanga, usatore bhodhi kuti itange marongero zvakananga, iyo pre-rongedzo inogona kuve yakavakirwa pane module kubvuta, muPCB bhodhi kudhirowa mutsara chiratidzo chekuyerera kuongororwa, uye ipapo yakavakirwa. pane yekuongorora kuyerera kwechiratidzo, muPCB bhodhi kudhirowa mutsara wekubatsira wemodule, ongorora yakaringana chinzvimbo chemodule muPCB uye saizi yenzvimbo yebasa.Dhirowa mutsara wekubatsira wakafara 40mil, uye ongorora kurongeka kwechimiro pakati pemamodules nemamodule kuburikidza nemashandiro ari pamusoro, sezvakaratidzwa mumufananidzo uri pazasi.
5, marongerwo anofanirwa kufunga nezve chiteshi chinosiya tambo yemagetsi, haifanirwe kunge yakanyanya kuomesesa, kuburikidza nehurongwa hwekufunga kuti simba rinobva kupi kwekuenda, sanganisa muti wesimba.
6, zvinhu zvinopisa (zvakadai se electrolytic capacitors, crystal oscillators) dhizaini inofanirwa kunge iri kure nemagetsi uye mamwe maturusi akakwira ekupisa, sezvinobvira mumhepo yekumusoro.
7, kusangana neyakaomesesa module kusiyanisa, iyo yese bhodhi dhizaini chiyero, iyo yese bhodhi wiring chiteshi kuchengetedza
I-high-voltage uye yakakwirira-yemazuva ano zviratidzo zvakaparadzana zvachose kubva kune zvisizvo zvisina simba zvemazuva mashoma uye zvishoma zvishoma.Iyo yakakwirira-voltage zvikamu zvakavharwa kunze muzvikamu zvese pasina imwe mhangura.Iyo creepage kureba pakati pe-high-voltage zvikamu inotariswa maererano neyakajairwa tafura
Iyo analog siginecha yakaparadzaniswa kubva kune yedhijitari siginecha ine hupamhi hwekuparadzanisa inosvika makumi maviri mil, uye analog neRF zvakarongwa mu '-' font kana 'L' chimiro zvinoenderana nezvinodiwa mu modular dhizaini.
Iyo yakakwira frequency chiratidzo inopatsanurwa kubva kune yakaderera frequency chiratidzo, iyo yekuparadzanisa chinhambwe ingangoita 3mm, uye kurongeka kwemuchinjikwa hakugone kuvimbiswa.
Kurongeka kwemakiyi emagetsi emagetsi akadai sekristaro oscillator uye wachi mutyairi anofanirwa kunge ari kure neiyo interface yedunhu dhizaini, kwete pamucheto webhodhi, uye kanenge 10mm kubva kumucheto kwebhodhi.Iyo crystal uye crystal oscillator inofanirwa kuiswa padyo nechip, ichiiswa muchikamu chimwe chete, usarove maburi, uye chengetedza nzvimbo yepasi.
Iyo yakafanana dhizaini yedunhu inotora iyo "symmetrical" yakajairwa dhizaini (yakananga kushandiswazve kweiyo imwechete module) kusangana nekuenderana kwechiratidzo.
Mushure mekugadzirwa kwePCB, isu tinofanirwa kuita ongororo nekuongorora kuti kugadzirwa kuwedzere kutsetseka.