Este circuito es de una documentación de 1982. Tenemos aquí una adaptación del circuito ya publicado en este sitio sin el uso de circuito temporizador de entrada. Se trata de un sistema de iluminación secuencial extensible, para ser utilizado con alimentación continua de 12 V. Los lectores podrán usar este sistema en un indicador de dirección para el coche con efectos muy atractivos o, aún, en decoración o señalización. El funcionamiento de este circuito es el siguiente: al establecerse la alimentación del circuito, todos los SCR están apagados y, por lo tanto, el relé permite la circulación de una corriente que, de inmediato, hace que L1 brille. Al mismo tiempo, el condensador C2 se carga a través de P1 / R1 hasta el punto de disparo del primer SCR. La lámpara L2, con la conducción del primer SCR, se enciende un cierto tiempo después de L1, por lo tanto. El intervalo depende básicamente del valor de C2 y del ajuste de P1. Con el encendido de L2, la tensión en este punto del circuito sube, iniciando ahora la carga de C3 vía P2 / R2. De nuevo, después de algún tiempo, el SCR2 se enciende haciendo encender L3. El proceso continuará con el encendido sucesivo de lámparas para cuantos pasos se colocan en el circuito. En el último paso se colocará el relé K1 que tiene por función apagar todo el circuito, dando inicio a un nuevo ciclo. Al accionar el último SCR (SCRx) el relé interrumpe la alimentación con el apagado de la alimentación. Todos los SCR se desconectan y se inicia un nuevo ciclo. El relé es del tipo RU101012 para12 V y las lámparas deben ser incandescentes de tipo para esta tensión.

 


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18.837MBMemory Usage48.05msRequest Duration
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