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ELFORUM - Forumul electronistilor
Guest ghedaniel0

aplicatii cu leduri(cum fac un led sa clipeasca dupa bass)

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Guest ghedaniel0

Mi-a venit o idee sa pun un led albastru superluminos de la brichete de alea, stiiti voi, intr-un subwoofer sa se vada in gaura aia misto, dar acuma mi-a venit alta idee sa fac ledul sa clipeasca in functie de bass.Intrebarea e: Cum fac asta ?

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poti face ca in unele casetofoane chinezesti :finga:

LED-ul in serie cu o rezistenta.. calculezi tensiunea la puterea maxima si apoi alegi rezistenta in functie de tensiunea rezultata, tinand cont ca LED-ul albastru are tensiunea de 3,5V pe el si un curent maxim de 20mA (nu 4,5V cat e supravoltat in bricheta)

 

poate te ajuta ceva de la http://www.tehnic.go.ro/LED.htm

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