Yakadhindwa redunhu bhodhi (PCB) ndiko kutsigirwa kwematunhu edunhu uye zvinhu zvemagetsi zvigadzirwa. Inopa kubatana kwemagetsi pakati pezvinhu zvematunhu nemidziyo. With kukurumidza kukura zvemagetsi michina, pcb arambe achirema iri kuwedzera uye yakakwirira. Iko kugona kwePCB dhizaini yekudzivisa kupindirwa kunoita mutsauko mukuru. Kudzidzira kwakaratidza kuti kunyangwe iyo wedunhu schematic dhizaini iri yechokwadi uye yakadhindwa wedunhu bhodhi dhizaini isina kukodzera, kuvimbika kwezvinhu zvemagetsi zvigadzirwa kuchakanganiswa zvakashata. Semuenzaniso, kana mitsara miviri yakatetepa yakafanana pabhodhi rakadhindwa iri padyo pamwe chete, pachave nekunonoka muchiratidzo chemasaisai, zvichikonzera ruzha runoratidzwa panoperera tambo yekufambisa. Naizvozvo, kana tichigadzira yakadhindwa redunhu bhodhi, isu tinofanirwa kuteerera kune chaiyo nzira, kutevedzera general chirevo chePCB dhizaini, uye inofanirwa kusangana nezvinodiwa zvekurwisa-kupindira dhizaini.

General misimboti pcb dhizaini

Kurongeka kwezvinhu uye wiring kwakakosha pakuita kwakaringana kwemaseketi emagetsi. Kuti ugadzire PCB nemhando yakanaka uye nemutengo wakaderera, zvinotevera zvirevo zvinofanirwa kuteverwa:

1. Wiring

Nheyo dze wiring ndedzinotevera:

(1) Wiresi dzakaenzana panopinza nekubuda zviteshi zvinofanirwa kudzivirirwa kusvika pazvinogoneka. Zvirinani kuwedzera pasi tambo pakati pewaya kudzivirira mhinduro yekubatanidza.

(2) Iyo yakaderera upamhi pcb waya inowanzo simbiswa nekunamatira simba pakati petambo uye inodzivirira substrate uye kukosha kwezvino kuyerera kuburikidza navo. Kana pakukora kwemhangura foil iri 0.5mm uye hupamhi iri 1 ~ 15mm, iyo yazvino kuburikidza 2A, iyo tembiricha haizove yakakwira kupfuura 3 ℃. Naizvozvo, iyo yakafara waya ye 1.5mm inogona kusangana nezvinodiwa. Kune macircuit akabatanidzwa, kunyanya masekiti edhijitari, 0.02 ~ 0.3mm waya upamhi inowanzo sarudzwa. Ehezve, pese pazvinokwanisika, shandisa tambo dzakafara, kunyanya magetsi netambo dzepasi. Iko kushomeka kwepakati kwetambo kunonyanya kutemerwa neiyo yekudzivirira kusagadzikana uye kuputsika kwemagetsi pakati pewaya mune yakaipa kesi. Kune macircuit akabatanidzwa, kunyanya masekiti edhijitari, nzvimbo yacho inogona kunge iri pasi pe5 ~ 8mil sekureba sekutendera kwacho.

(3) Yakadhindwa waya yakakotama kazhinji inotora yakatenderera arc, uye kurudyi Angle kana inosanganisirwa Angle mune yakakwira frequency dunhu inokanganisa mashandiro emagetsi. Uye zvakare, dzivisa kushandisa yakakura yemhangura foil kusvika pazvinogoneka, zvikasadaro, kana ukapisa kwenguva yakareba, mhangura foil iri nyore kuwedzera uye kudonha. Kana nzvimbo hombe dzemhangura foil dzichifanira kushandiswa, zviri nani kushandisa gridhi. Izvi zvinobatsira kubviswa kwemhangura foil uye substrate kubatana pakati pekupisa kunogadzirwa nemhepo isina kugadzikana.