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Intrebare circuit


Guest vvlladdd

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Guest vvlladdd

salutare ce face circuitul din imagine? mentionez ca sunt niste greseli intentionate am nevoie pentru un proiect. multumesc

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Editat de Madalina: modificare nume subiect(12.01.2012)

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Este practic un amplificator neinversor. Daca notezi cu R1 rezistorii de 11k si cu R2 pe cel de 820 atunci castigul amplificatorului este:Vo/Vi = 2*R2/R1. In cazul tau e in jur de 0.149Daca n-ar exista reactia pozitiva prin rez de 11k atunci amplificarea ar fi:Vo/Vi = 2*R2/(R1+R2). In jur de 0.138.Dupa cum vezi reactia pozitiva corecteaza usor castigul ca sa fie determinat de o relatie mai simpla.

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