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ELFORUM - Forumul electronistilor

releu comandat


Guest I_robot
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Guest I_robot

O mare rugaminte catre membrii familiarizati cu componentele electronice: ce tip de releu are urmatoarele caracteristici:tens/curentul de comanda provin de la un LED (2-5V, 20mA), tensiunea comandata 12V, puterea de ordinul catzva Watts(concret, sunt 2 LED-uri care se aprind simultan, se elimina unul, in locul lui se pune un releu care comanda o sonerie) daca se poate, cateva linkuri catre site-uri care le comercializeaza ar fi f. utilemultumesc.

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Releul nu e singura solutie, cred ca poti face comanda mai economic cu un tranzistor. Mai da cateva detalii:- de unde provine semnalul de comanda (microprocesor la 5V ?)- ce sonerie folosesti (piezoelectrica la 12V ?) si cat curent necesita (mA) - ai sursa de alimentare pt. sonerie ?

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Guest I_robot

multam ptr raspunsuride ex o sonerie de ceas desteptator se poate alimenta direct de tranzistor (la 1,5V), ce tip de tranzistor se foloseste?

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