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5V convertor 3.3v ?


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Cred ca cel mai ieftin e sa pui 2-3 diode cu siliciu in serie(0,6v-0,7V cadere tensiune pe ele) sau diode Schottky dar trebuie mai multe ca au cadere de tensiune mai mica.(0,3V)Daca e musai sa iasa 3,3v atunci colegul lutza2 te-a indrumat bine ca varianta ieftina si simpla.

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LM317 daca e nevoie de max 1A .

De la 5 pana la 3,3 diferenta este de 1,7V, 317 are nevoie de mai mult pentru a stabiliza corect.


Nu s-a precizat daca cei 5V sunt stabilizati sau nu, nu s-a precizat nici ce curent este necesar de la cei 3,3V, ci doar s-a prezentat o intrebare generalizata, prin urmare si raspunsuri la fel de generaliste.

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Am nevoie pentru un ecran,am pe placa (main board) 5v,in loc de 5v am nevoie de 3.3v.
Am nevoie la alimentarea ecranului lcd de 3.3v.


Pot folosi asa ceva ?

Mai trebuie ceva piese ?

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Edited by cearda
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