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amplificator cu tda2052


Guest vip2009

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Guest vip2009

am construit un amplificator cu tda2052 dar dupa schema care foloseste integratul 2030/2040 . Am urmatoarea problema daca leg amplificatorul la un difuzor se aude foarte bine daca ii dau mai tare se aude 5-6 secunde tare dupa care apare un barait, iar daca ii pun filtru nu mai baraie. Ma puteti ajuta? Care este problema?

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1-Incearca cu alta incinta si vezi daca se mai comporta la fel. Ce impedanta au incintele folosite? Ce putere nominala au?2-Masoara tensiunea de alimentare a amplificatorului fara semnal la intrare, apoi masoara tensiunea de alimentare cind amplificatorul "biriie". Compara-le.

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Guest vip2009

1 . Puterea nominala a difuzoarelor este de 50W/4Ohm2 . Buna idee cu masurarea tensiunii cand baraiedar nu prea cred ca e problema asta pentru ca folosesc un trasfomator 2x16V /3,7A /150W

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