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amplificateur operationnel

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amplificateur operationnel

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December 31, 2021
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2021/2022
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Exercices avec solutions : filière EEA Par Abdelali ASTITO Exercices avec solutions : filière EEA Par Abdelali ASTITO



Les amplificateurs opérationnels Exercice II
Soit l'amplificateur du montage suivant :
Exercice I 1) Calculer la fonction de transfert
+E H(jω)= Vs/Ve
Les amplificateurs opérationnels sont parfaits et
fonctionnent en régime non linéaire. On suppose R
que ses alimentations sont -E et +E .
2) Montrer qu'elle peut se mettre sous
3
la forme :
+
Calculer Vs1 et Vs2 lorsque Ve varie de -E à +E 6
2
-
Tracer Vs1 et Vs2 en fonction de Ve sur un même Vs1
R
graphe
3 +
Ve 6
2 -




R Vs2
Et donner les expressions de H0, ω', ω2 et ω3

Réponse On donne R1 = 1,04 KΩ, C2 = 330 nF, C3 = 100nF, quelles sont les valeurs à
donner à R2 et R3 pour que f2 = (ω2/2 ) soit égale 50 Hz

Et f3 = (ω3/2 ) soit égale à 2000 Hz

Calculer numériquement f' = (ω'/2 )




Solution :




Page FST Tanger 2015/2016 Page FST Tanger 2015/2016
R212,08
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