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mariusamplifier

Ajutor sursa Phantom Power +48V

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Buna ziua tuturor. As vrea sa inlocuiesc sursa prajita dintr-un mixer audio cu un transformator toroidal si m-am gandit sa va cer ajutorul pt alegerea unei scheme de stabilizator pentru tensiunea de 48V. Transformatorul Imi furnizeaza 40V / 0,15A. De asemenea as dori sa stabilizez si alimentarea simetrica +/- 15V, pt aceasta avand o infasurare in secundarul transformatorului de 2x15V/2,5A. In sursa originala au fost folositi tranzistori TIP31 si TIP 32

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Imi permit sa observ ca schema contine informatii foarte importante (denumirea electrozilor tranzistorului) insa 

cele secundare au fost neglijate (valoarea componentelor, tensiuni, tip Zenner); erau oricum, lipsite de

semnificatie. Stabilizatorul de -15 oare cum s-a realizat?

 

Repetorul asta e o schema grozav de performanta, nu-i asa, colegi electronisti? Ce LM 317/337....

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