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ELFORUM - Forumul electronistilor

Switch on/off cu senzor optic


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schemele se pot adapta la ce ai nevoie . cand fotorez nu este "iluminat" rezistenat e f mare cadt il luminezi rez scade (se aseamana cu un comutator -depinde insa la ce prag de lumina .poti pune in loc de comutator un montaj darlington si fototranzistorul sau fotorez. daca pragul de "aclansare" nu este satisfacator")

cu buton

utile

One Button On Off Switch with 4093 and IRFZ44

schema cu senzor IR mai complexa

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