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ELFORUM - Forumul electronistilor

Alimentare asimetrica


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Salut!Ma puteti ajuta va rog cu o schema pentru alimentare asimetrica de la un transformator normal.Am un transformator la 220Vc.a. cu 2 iesiri (normal/uzual) care scoate in secundar 12V~Pentru ca sa alimentez un montaj audio cu TDA 2616 am nevoie de (+)12Vcc, (-)12Vcc si firul comun.Exista vreun artificiu care se face pe puntea redresoare ca sa obtin o alimentare asimetrica?Atasez si schema amplificatorului pe care doresc sa-l realizez.Va multumesc.


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Da, altfel aveti componenta continua pe difuzoare.Puteti utiliza si valori mai mari(ex.1000uF), 680uF este limita inferioara pentru a reda basii neatenuati.Tensiunea de lucru a condensatoarelor de iesire, nu o depaseste pe cea de alimentare, deci pot avea aceiasi tensiune de lucru cu cei de filtraj.

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