Idizayini evamile ye-PCB yamanje ayidluli ku-10A, ikakhulukazi kuma-electronics asendlini nabathengi, ngokuvamile ukusebenza okuqhubekayo ku-PCB akudluli u-2A.

Kodwa-ke, eminye imikhiqizo yenzelwe izintambo zamandla, futhi okwamanje okuqhubekayo kungafinyelela cishe ku-80A.Uma kucatshangelwa umsinga osheshayo futhi ushiya umkhawulo walo lonke uhlelo, i-current eqhubekayo ye-wiring yamandla kufanele ikwazi ukumelana nokungaphezu kuka-100A.

Khona-ke umbuzo uwukuthi, hlobo luni lwe-PCB olungamelana namandla amanje ka-100A?

Indlela 1: Isakhiwo ku-PCB

Ukuthola amandla amanje e-PCB, siqale siqale ngesakhiwo se-PCB.Thatha i-PCB enezingqimba ezimbili njengesibonelo.Lolu hlobo lwebhodi lesifunda luvame ukuba nesakhiwo sezendlalelo ezintathu: isikhumba sethusi, ipuleti, nesikhumba sethusi.Isikhumba sethusi yindlela okudlula kuyo i-current and signal ku-PCB.

Ngokolwazi lwe-physics yesikole esiphakathi, singakwazi ukwazi ukuthi ukumelana kwento kuhlobene nempahla, indawo enqamula izingxenye, kanye nobude.Njengoba i-current yethu isebenza esikhumbeni sethusi, i-resistivity ilungisiwe.Indawo ye-cross-sectional ingathathwa njengobukhulu besikhumba sethusi, okuwugqinsi lwethusi ezinkethweni zokucubungula ze-PCB.

Imvamisa ukujiya kwethusi kuvezwa ku-OZ, ukujiya kwethusi okungu-1 OZ kungu-35 um, u-2 OZ kungu-70 um, njalonjalo.Khona-ke kungaphethwa kalula ngokuthi uma i-current enkulu izodluliswa ku-PCB, izintambo kufanele zibe zifushane futhi zibe nkulu, futhi ukuqina kwethusi kwe-PCB, kungcono.

Empeleni, kwezobunjiniyela, alikho izinga eliqinile lobude bezintambo.Imvamisa esetshenziswa kubunjiniyela: ukujiya kwethusi / ukukhuphuka kwezinga lokushisa / ububanzi bentambo, lezi zinkomba ezintathu zokukala umthamo wamanje wokuthwala webhodi le-PCB.