Connessione tra generatore e carico

V_c $\displaystyle \left(\vphantom{ f}\right.$ f $\displaystyle \left.\vphantom{ f}\right)$ = V_g $\displaystyle \left(\vphantom{ f}\right.$ f $\displaystyle \left.\vphantom{ f}\right)$ $\displaystyle {\frac{Z_{c}\left( f\right) }{Z_{c}\left( f\right) +Z_{g}\left( f\right) }}$

$\displaystyle \mathcal {W}$ _{z_c} $\displaystyle \left(\vphantom{ f}\right.$ f $\displaystyle \left.\vphantom{ f}\right)$ = $\displaystyle \mathcal {P}$ _{v_c} $\displaystyle \left(\vphantom{ f}\right.$ f $\displaystyle \left.\vphantom{ f}\right)$ $\displaystyle {\frac{R_{c}\left( f\right) }{\left\vert Z_{c}\left( f\right) \right\vert ^{2}}}$ = $\displaystyle \mathcal {P}$ _{v_g} $\displaystyle \left(\vphantom{ f}\right.$ f $\displaystyle \left.\vphantom{ f}\right)$ $\displaystyle \left\vert\vphantom{ \frac{Z_{c}\left( f\right) }{Z_{c}\left( f\right) +Z_{g}\left( f\right) }}\right.$ $\displaystyle {\frac{Z_{c}\left( f\right) }{Z_{c}\left( f\right) +Z_{g}\left( f\right) }}$ $\displaystyle \left.\vphantom{ \frac{Z_{c}\left( f\right) }{Z_{c}\left( f\right) +Z_{g}\left( f\right) }}\right\vert^{2}_{}$ $\displaystyle {\frac{R_{c}\left( f\right) }{\left\vert Z_{c}\left( f\right) \right\vert ^{2}}}$ = $\displaystyle \mathcal {P}$ _{v_g} $\displaystyle \left(\vphantom{ f}\right.$ f $\displaystyle \left.\vphantom{ f}\right)$ $\displaystyle {\frac{R_{c}\left( f\right) }{\left\vert Z_{c}\left( f\right) +Z_{g}\left( f\right) \right\vert ^{2}}}$

Osserviamo dunque che la potenza dissipata dal carico dipende da Z_c $\left(\vphantom{ f}\right.$ f $\left.\vphantom{ f}\right)$ , che compare sia a denominatore, che a numeratore con R_c $\left(\vphantom{ f}\right.$ f $\left.\vphantom{ f}\right)$ . Ci chiediamo allora quale sia il valore di Z_c che realizza il massimo trasferimento di potenza tra generatore e carico, sfruttando così appieno la