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Florin_dioda

TDA 7294

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Intr-un final mi-am cumparat transformatorul pentru amplificatorul meu cu TDA7294, iar acum trebuie sa-l leg la puntea redresoare si am o oarecare retinere ca se face cum cred eu.

 

Mai jos sunt niste poze pe care le-am facut in Cinema4D in care am incercat sa reprezint cat mai bine cam cum arata transformatorul si ce scrie pe el, pentru ca din poze nu prea s-ar intelege:

post-17100-0-57084600-1387454786_thumb.jpg post-17100-0-30144700-1387454791_thumb.jpg post-17100-0-58582400-1387454796_thumb.jpg

 

Vreau sa stiu daca asa se leaga la puntea redresoare:

post-17100-0-83730300-1387454930_thumb.jpg post-17100-0-18501400-1387454891_thumb.jpg

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Cel mai sigur ar fi sa verificati legand impreuna doua fire apartinand fiecare altei infasurari(dupa mine unul verde cu unul albastru ca in imaginea a doua) si daca la capetele libere masurati in AC dublul tensiunii masurate intre capetele unei infasurari, acel nod il conectati la 0V.

Edited by miron1947

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conform imagini "trofo2" leaga verde din stanga cu albastru din dreapta la 0v iar celelalte 2 ramase la puntea redresoare pe alternativ

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Cu ce pot inlocui condensatorul de 1uF de la intrare pentru ca nu gasesc cu film metalic?

post-17100-0-95154000-1424353563_thumb.gif post-17100-0-86136200-1424353639_thumb.jpg

Edited by Florin_dioda

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puteti folosi 2 condensatori electrolitici de 2,2uf legati in serie PLUS cu PLUS. Astfel aveti capete libere cele 2 minusuri ramase. De asemenea , eu am folosit la un etaj final cu TDA7294 pe intrare condensator de 680nf cu poliester.

Edited by Mircea Radulescu

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