bip.py

Created by mailystrehel

Created on November 20, 2022

660 Bytes

Ic0=BibO
Ube0= 0,68
Ie0=Ic0

Etude statique
Théorème de thevenin à gauche 
Eth= vcc*R2/R2+R1
Rth=R1//R2=R1*R2/R1+R2

Mailes à gauche et à droite 
Eth=Re.Ie0(Ic0)+Ube0+Rth.Ib0
E=Re.Ie0+Uce0+Rc.Ic0

Eth=Re.Ie0(Ic0)+Ube0+Rth.Ib0
->Ib0=Eth-Ube0/B.Re+Rth

E=Re.Ie0+Uce0+Rc.Ic0
->Uce0=E-(Re+Rc)Ic0

Ic0=Bib0=B(Eth-Ube0/B.Re+Rth)

2.Etude dynamique
Avc(gain en charge)= Vs/Ve
U=R.I
Vs=-Bib.(Rc//Rl)
Ve=h11.ib
Avc=(-B.(Rc//Rl))/h11

Av0(gain à vide) on enlève RL
Vs=-Bib.Rc
Ve=h11.ib
Av0=-B.Rc/h11

Zen(impédance d’entree)=Ve/ie
Ve=(R2//R1//h11).ie
Zen=Req.ie/ie=Req

Zs(impédance de sortie)=Vs/is Ve=0(court-circuit)
ib=0
Vs=Rc.is
Zs=Rc.is/is=Rc

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