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ELFORUM - Forumul electronistilor

3.3V continuu din 220V alternativ


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bogdan_: am cautat mult si am gasit cum se calculeaza. cred ca voi renunta la partea de wireless si atunci pot redute mult condesatorul acela. 1.5uF/630VAre cineva idee de ce se incalzeste rezistenta de la intrare? Trebuie neaparat triac-ul acolo?

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