Ukuphazamiseka okushisayo nokumelana nokuthuthukile PCB design

Ukuphazamiseka okushisayo kuyisici esibalulekile okufanele siqedwe ekwakhiweni kwe-PCB. Kucatshangwa ukuthi izingxenye nezingxenye zinezinga elithile lokushisa ngesikhathi sokusebenza, ikakhulukazi ukushisa okukhishwa izingxenye ezinamandla kakhulu kuzophazamisa izingxenye ezizungezile ezizwela ukushisa. Uma ukuphazamiseka okushisayo kungacindezelwa kahle, khona-ke yonke isifunda Izakhiwo zikagesi zizoshintsha.

Ukuze kuncishiswe ukuphazamiseka kwe-thermal, izinyathelo ezilandelayo zingathathwa:

(1) Ukubekwa kwesici sokushisa

Ungayibeki ebhodini, ingathuthelwa ngaphandle kwekesi, noma ingaklanywa njengeyunithi ehlukile yokusebenza, ibekwe eduze komphetho lapho kulula khona ukukhipha ukushisa. Isibonelo, ukunikezwa kwamandla kagesi we-microcomputer, ithubhu ye-amplifier yamandla exhunywe ngaphandle kwecala, njll. Ngaphezu kwalokho, amadivayisi anenani elikhulu lokushisa namadivayisi anenani elincane lokushisa kufanele abekwe ngokuhlukana.

(2) Ukubekwa kwemishini enamandla amakhulu

kufanele ihlelwe eduze konqenqemeni ngangokunokwenzeka lapho ibhodi eliphrintiwe, futhi kufanele lihlelwe ngaphezu kwebhodi eliphrintiwe ngangokunokwenzeka endleleni eqondile.

(3) Ukubekwa kwamadivayisi azwelayo kukushisa

Idivayisi ezwelayo kumazinga okushisa kufanele ibekwe endaweni yokushisa ephansi kakhulu. Ungalokothi uyibeke ngaphezu kwedivayisi yokushisisa.

(4) Ukuhlelwa nokugeleza komoya kwamadivayisi

Azikho izimfuneko ezithile. Ngokuvamile, ingaphakathi lemishini isebenzisa i-convection yamahhala ukuze ikhiphe ukushisa, ngakho-ke izingxenye kufanele zihlelwe zibheke phezulu; uma ukushisa kuphoqeleka ukuba kuhlakazeke, izingxenye zingahlelwa ngokuvundlile. Ukwengeza, ukuze kuthuthukiswe umphumela wokushisa ukushisa, izingxenye ezingahlangene nesimiso sesifunda zingangezwa ukuze ziqondise ukuhanjiswa kokushisa.