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ELFORUM - Forumul electronistilor

Zgomot de la ceas cu atmega8


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Am facut un ceas digital cu display cu leduri cu atmega8 si daca il alimentez de la aceeasi sursa in din care alimentez un amplificator audio imi introduce un bazait ciudat si cand punctele de separare ora si minut se sting si se aprind bazaitul se schimba. Eu cred ca sunt ceva paraziti fie de la quartul pentru ceas fie de la ceasul intern al atmega8. Ce filtru imi recomandati sa pun intre alimentare si alimentarea ceasului?

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