ampliaop.py

Created by famille-bvc

Created on May 12, 2022

1.31 KB


## Montage comparateur
     +
  Ve -|\
      | >- Vs
Vref -|/
     -
sortie = +/- Vcc

# Montage amplificateur inverseur

     --R2--
     |-   |
Ve-R1--|\ |
       | >--Vs
 masse-|/
      +

Ue*(1/R1+1/R2) = Ve/R1 + Vs/R2 
puisque Ue-=Ue+=0 
f transfert= -R2/R1 = Vs/Ve

# Montage non inverseur

        --R2--
        |-   |
Masse-R1--|\ |
          | >--Vs
       Ve-|/
         +

Ve*(1/R1+1/R2) = 0/R1 + Vs/R2 
puisque Ue-=Ue+ 
f transfert= 1 + R2/R1 = Vs/Ve

#ampli-op soustracteur (diff́erentiateur


       --R3--
       |-   |
Vi1--R1--|\ |
         | >--Vs
Vi2--R2--|/
       |+
       R4
       |
     Masse

Sortie
#V0 = (R3/R1)(Vi2-Vi1)
#   = (R3/R2)(Vi2-Vi1)
#   = ...V


# montage sommateur négatif

Ve3--R3-
       |
Ve2--R2---R--
       |-   |
Ve1--R1--|\ |
         | >--Vs
       --|/
       |+
     Masse
     
Ue-*(1/R1+1/R2+1/R3+1/R)
=Ve1/R1+Ve2/R2+Ve3/R3+Vs/R
puisque Ue- = Ue+ = 0
F transf= -R(Ve1/R1+Ve2/R2+Ve3/R3)

# Montage intégrateur

  i  --C---
  >  |-   |
Ve--R--|\ |
       | >--Vs
 masse-|/
      +

ie- = 0
        d(0-Vs)
Ve=Ri=RC-------
          dt
          
Vs(t)=Vs(t0)+int(Ve(x)dx,t0,t)

# Montage dérivateur

  i  --R---
  >  |-   |
Ve--C--|\ |
       | >--Vs
 masse-|/
      +
ie- = 0
          d(Ve-0)
Vs=-Ri=-RC-------
            dt
         dVe
Vs(t)=-RC---
         dt

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