Ungayisetha kanjani ububanzi bomugqa we-wiring ye-PCB?

Intambo ye-PCB iyingxenye ebucayi kakhulu yokwakhiwa kwe-PCB. Abanye abangane abazi ukuthi ububanzi bemigqa yocingo lwe-PCB ngokuvamile busethwe kangakanani. Ake sethule ukuthi ububanzi bemigqa yocingo lwe-PCB ngokuvamile busethwe kanjani.

Ngokuvamile, kunezinkinga ezimbili okufanele uzicabangele ububanzi bomugqa wiring we-PCB. Owokuqala ngusayizi wamanje. Uma ukugeleza kwamanje kukhulu, umkhondo awunakuba mncane kakhulu; okwesibili ukubheka amandla wangempela wokukhiqiza webhodi lefektri yebhodi. Uma i-current incane, umkhondo ungaba mncane, kepha uma uncane kakhulu, Ezinye izimboni zebhodi le-PCB kungenzeka zingakwazi ukuzikhiqiza, noma zingazikhiqiza kepha izinga lesivuno selikhuphukile, ngakho-ke ifektri yebhodi kufanele icatshangwe .

Ingakanani i-PCB wiring line wide ngokuvamile isethwe

Ngokuvamile, ububanzi bomugqa nokuhlukaniswa kwemigqa kulawulwa ku-6 / 6mil, futhi umgodi nge-12mil (0.3mm). Abakhiqizi abaningi be-PCB bangayikhiqiza, futhi izindleko zokukhiqiza ziphansi.

Ubuncane bomugqa nobubanzi besikhala somugqa bulawulwa ku-4 / 4mil, kanti imbobo nge-8mil (0.2mm). Ngaphezu kwengxenye yabakhiqizi be-PCB bangayikhiqiza, kepha inani lizobiza kancane kunangaphambilini.

Ubuncane bomugqa nobubanzi besikhala somugqa bulawulwa ku-3.5 / 3.5mil, kanti imbobo nge-8mil (0.2mm). Bambalwa abakhiqizi be-PCB abakwazi ukukhiqiza, futhi intengo izobiza kancane.

Ubuncane bomugqa nobubanzi besikhala somugqa bulawulwa ku-2 / 2mil, futhi umgodi nge-4mil (0.1mm). Abakhiqizi abaningi be-pcb abakwazi ukukhiqiza. Lolu hlobo lwentengo luphezulu kakhulu.

Uma ububanzi bomugqa busethwe ngokuya ngobuningi bedizayini ye-PCB, ukuminyana kuncane, futhi ububanzi bomugqa nokuhlukaniswa kwemigqa kungasethwa kube kukhulu, nobuningi bungasetwa bube buncane:

1) 8 / 8mil, 12mil (0.3mm) ye ngembobo.

2) 6 / 6mil, 12mil (0.3mm) ye ngembobo.

3) 4 / 4mil, 8mil (0.2mm) ye ngembobo.

4) 3.5 / 3.5mil, 8mil (0.2mm) ye ngembobo.

5) 3.5 / 3.5mil, 4mil ye nge imbobo (0.1mm, laser imishini).

6) 2 / 2mil, 4mil ye nge imbobo (0.1mm, laser imishini).