spinach Posted July 5, 2009 Share Posted July 5, 2009 Vreau sa convertesc un semnal analogic in 2 semnale digitale , astfel:-daca semnal analog depaseste pragul de referinta -sa avem impuls pozitiv cu tranzitie de la low la high-daca semnal analog coboara sub pragul de referinta , sa avem alt impuls de la low la high Quote Link to comment Share on other sites More sharing options...
francezu Posted July 6, 2009 Share Posted July 6, 2009 Ai putea sa folosesti schema din atasament, in care U1,U2,U3 si U4 sunt comparatoare obisnuite, de preferat 4 intr-un IC (ex: LM239,LM339,TLC354).Durata impulsului de la iesire se regleaza din C1-R3, C2-R4. Cu valorile din schema impulsul dureaza ~160 ms. Quote Link to comment Share on other sites More sharing options...
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