# Maximum Power Transfer Theorem DC & AC

#### Agonche

Joined Aug 26, 2011
30
Can anyone help me with the theorem "Maximum Power Transfer" on DC and AC circuits.

I know that
$$R_{L}=R_{S}$$
and
$$X_{L}=-X_{S}$$

but why. I need a proof.
can anyone explain the derivative of dP/dR, or how it should be solved.
any information would be appreciated.

#### jegues

Joined Sep 13, 2010
733
Can anyone help me with the theorem "Maximum Power Transfer" on DC and AC circuits.

I know that
$$R_{L}=R_{S}$$
and
$$X_{L}=-X_{S}$$

but why. I need a proof.
can anyone explain the derivative of dP/dR, or how it should be solved.
any information would be appreciated.