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CV-03-BTF

Comanda releu

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salut... va rog frumos daca imi puteti recomanda o schema care sa-mi comande aclansarea unui releu pe 12 volti timp de o fractiune de secunda ( timpul nu e critic ..sa zicem poate varia intre o fractiune de secunda si chiat o secunda..!!) apoi sa se elibereze... comanda sa se repete de fiecare data numai cand montajul este alimentat.... ( 12 V ) montajul imi este necesar pentru comanda fazei lungi la un far auto multumesc anticipat...

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Pentru SCR1, trebuie un tiristor de putere mica, 100mA(ex. P0102DA, asta are 500mA), pentru tranzistor depinde de curentul prin bobina releului, un bc546 duce 100mA maximu, pentru un releu de 50-70mA este deajuns, diodele sunt 1n4001.La simulare se vede intarzierea de ~0.6s, daca vrei mai mult pui un condesator mai mare, sau rezistenta mai mare(dar nu mai mare de 6k), daca vrei un timp mai scurt reduci rezistenta.

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