Regular intensidad LED
Datos del circuito:
- Vcc = 9V / 220mA
- Led = 3,3V / 20mA
- Resistencias = 330 Ohmios y 1/2W
2 Respuestas
El montaje que debe conectar, debe conservar la resistencia de 330 Ohmios en serie de cada LED, y disponer un reóstato en serie con el conjunto de los 6 LED y su respectiva resistencia en serie.
Con un potenciómetro en conexión reóstato (el terminal central y uno los laterales, dejando el otro libre) de 1 K o 2 K o quizá más, la luminosidad bajará fuertemente, aunque quizá para anularla del todo, el potenciómetro deberá tener un interruptor al final del recorrido que corte el circuito.
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