Uyilo oluqhelekileyo lwe-PCB lwangoku aludluli kwi-10 A, okanye nakwi-5 A. Ingakumbi kwi-elektroniki yasekhaya kunye nabathengi, ngokuqhelekileyo ukusebenza okuqhubekayo kwi-PCB akudluli ku-2 A.

Indlela yoku-1: Uyilo kwiPCB

Ukuqonda isakhono sangoku se-PCB, siqale siqale ngesakhiwo sePCB. Thatha i-PCB ene-double-layer njengomzekelo. Olu hlobo lwebhodi yesekethe ngokuqhelekileyo lunesakhiwo esinemigangatho emithathu: ulusu lobhedu, ipleyiti, kunye nesikhumba sobhedu. Ulusu lobhedu yindlela apho i-current kunye nesignali kwi-PCB idlula. Ngokolwazi lwefiziksi yesikolo esiphakathi, sinokwazi ukuba ukuchasana kwento kuhambelana nezinto eziphathekayo, indawo enqamlezileyo, kunye nobude. Ekubeni i-current yethu isebenza kwi-copper skin, i-resistivity imisiwe. Ummandla onqamlezileyo unokuthathwa njengobunzima besikhumba sobhedu, obunzima bobhedu kwiinketho zokusetyenzwa kwePCB. Ngokuqhelekileyo ubukhulu bobhedu bubonakaliswa kwi-OZ, ubukhulu bobhedu be-1 OZ yi-35 um, i-2 OZ yi-70 um, njalo njalo. Emva koko kunokugqitywa ngokulula ukuba xa umsinga omkhulu uza kugqithiswa kwi-PCB, i-wiring kufuneka ibe mfutshane kwaye ibe nkulu, kwaye ubukhulu be-copper ye-PCB, bungcono.

Kubunjineli bokwenyani, akukho mgangatho ungqongqo wobude bocingo. Idla ngokusetyenziswa kubunjineli: ubukhulu bobhedu / ukunyuka kweqondo lobushushu / idiameter yocingo, ezi zalathisi zintathu ukulinganisa umthamo wangoku webhodi yePCB.

Amava ocingo lwe-PCB kukuba: ukwandisa ubukhulu bobhedu, ukwandiswa kwedayamitha yocingo, kunye nokuphucula ukuchithwa kobushushu bePCB kunokunyusa umthamo wangoku we-PCB.

Ke ukuba ndifuna ukuqhuba i-current ye-100 A, ndingakhetha ubukhulu bobhedu be-4 OZ, ndisete ububanzi bokulandelela ukuya kwi-15 mm, iitrayisi ezimacala amabini, kwaye ndongeze isitya sokushisa ukunciphisa ukunyuka kobushushu bePCB kunye nokuphucula. uzinzo.

02

Indlela yesibini: i-terminal

Ukongeza kwi-wiring kwi-PCB, izithuba zocingo zingasetyenziswa.

Lungisa iitheminali ezininzi ezinokumelana no-100 A kwi-PCB okanye iqokobhe lemveliso, njengamandongomane okubekwa phezulu, iitheminali zePCB, iikholamu zobhedu, njl. Ngale ndlela, imisinga emikhulu inokudlula kwiingcingo.

03

Indlela yesithathu: ibha yobhedu yesiko

Nkqu nemivalo yobhedu inokwenziwa ngokwezifiso. Yinto eqhelekileyo kwishishini ukusebenzisa imivalo yobhedu ukuthwala imisinga emikhulu. Ngokomzekelo, abaguquli, iikhabhinethi zeseva kunye nezinye izicelo zisebenzisa imivalo yobhedu ukuthwala imisinga emikhulu.

04

Indlela yesi-4: Inkqubo ekhethekileyo

Ukongeza, kukho ezinye iinkqubo PCB ezikhethekileyo ngakumbi, kwaye usenokungakwazi ukufumana umenzi e China. I-Infineon inohlobo lwePCB ene-3-layer yoyilo lobhedu. Uluhlu oluphezulu kunye nezantsi luluhlu lwe-wiring yesignali, kwaye uluhlu oluphakathi luyi-copper layer kunye nobukhulu be-1.5 mm, esetyenziselwa ngokukodwa ukulungiselela amandla. Olu hlobo lwePCB lunokuba lula ukuba luncinci ngobukhulu. Ukuhamba ngaphaya kwe-100 A.