Guest ironcross Posted August 30, 2010 Share Posted August 30, 2010 buna ziuaam un ceas cu alarma alarma este un difuzor piezo care face un bip cand sunaas vrea sa fac o schema cu alimentare la 6 -9 V care sa-mi inchida un releu atunci cand sunareleul este un minireleu, alimentat la 6 V, consum de curent de 300mA cand e activatam incercat niste tranzistori npn chiar si npn-npn in darlington si nu merge, nu ma pricep la tranzistoriva multumesc anticipat Link to comment
Guest ironcross Posted September 10, 2010 Share Posted September 10, 2010 nu a mersstie cineva un circuit cu un IC care sa imi inchida un releu la pulsurile de la difuzor? Link to comment
cristian_draghiescu Posted September 10, 2010 Share Posted September 10, 2010 Foloseste (cu modificari minore, conform cerintelor tale) schema de mai jos : Link to comment
miron1947 Posted September 10, 2010 Share Posted September 10, 2010 nu a mers un releu la pulsurile de la difuzor?Vedeti si aici.viewtopic.php?p=108826#p108826 Link to comment
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now