La fonction de ce montage est une mise sous tension « prudente » de charges à forte consommation, un amplificateur audio par exemple, ceci de manière à limiter le courant de mise en fonction et partant d'éviter l'entrée en fonction du (des) fusible(s).
Composants
Résistances : R1, R2 = 470 kOhm
R3 = 220 Ohm
R4 à R7 = 10 Ohm/5 W
Condensateurs : C1 = 330 nF/250 VAC (Philips 333.4 MP-KT)
C2, C3 = 470 µF/40 V
Semi-conducteurs : B1 = B250C1500 (circulaire)
Divers : K1, K2 = Bornier à vis à deux contacts, RM7,5
Re1 = Relais 24 V/1200 W, contacts 250 V/8 A (Siemens V23057-B6-A201)
F1 = (*)
Comment faire Temporisation de mise sous tension secteur
comment fabrique
comment creer
publié dans Elektor n° 229, juillet/août 1997
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