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ELFORUM - Forumul electronistilor

MOSFET la tensiune mare, cum il comand?


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pei idea e simpla...am vreo 300V continuu si vreau sa comand o sarcina rezistiva printr-un semnal PWM cu un MOSFET(de ex IRF730).cum pot sa comand FET-ul? ar fi necesara o izolare optica intre partea "vie" a circuitului, si partea de tensiune mica.imi poate da cineva niste sugestii? preferabil nu cu integrate "exotice".multumesc!

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pei asta e ca nu prea merge....ca si eu mam gandit putin la metoda asta.dar cum se comporta traful cand am sa zicem un PWM cu 99%?as putea sa ma multumesc si cu 99%, dar nu cred ca imi iese unda dreptunghiulara din traf, chiar daca eu bag asa...se poate in vre un fel cu optocuplor?

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