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3.4 Fonctions de transfertP l (s)H 21 (s)U r (s)H 11 (s)H 22 (s)U l (s)H 12 (s)P r (s)Figure 10 – Quadripôle en variables (P, U)Fonctions de transfert en variables (P, U) Voir figure 10H 11 (s) = 1 C Γ (s)+σ l S Γ (s)s S Γ (s)H 22 (s) = − 1 C Γ (s)+σ r S Γ (s)s S Γ (s)( ) 3 Rl 1 1H 12 (s) = −R r s S Γ (s)H 21 (s) =(RrR l) 31s1S Γ (s)Fonctions de transfert en variables (p in ,p out ) Voir figure 11p inl(s)T + p (s)p outr (s)R l p(s)R r p(s)p outl(s)T − p (s)p inr (s)Figure 11 – Quadripôle en variables (p in ,p out )T + p = R lR r((1 + kl )(1 − k r )T φ)/dpT − p = R rR l((1 − kl )(1 + k r )T φ)/dpR l p = ( k l + k l k r R r φ + k rR l φ Rr φ + Rl φ − k rT 2 φ)/dpRp r = ( k r + k r k l Rφ l + k lRφ r Rl φ + Rr φ − k lTφ) 2 /dpd p = 1+ ( k l Rφ l + k rRφ r + k lk r Rφ l Rr φ − k lk r Tφ2 )