Maximum Power Transfer
Suppose we have a voltage source or battery that's internal resistance is Ri and a load resistance RL is connected across this battery . Maximum power transfer theorem determines the value of resistance RL
for which, the maximum power will be transferred from source to it.
Actually the maximum power, drawn from the source, depends upon the
value of the load resistance.
Power delivered to the load resistance,
To find the maximum power, differentiate the above expression with respect to resistance RL and equate it to zero. Thus,
A resistive load in a resistive network
will abstract maximum power when the load resistance is equal to the
resistance viewed by the load as it looks back to the network. Actually
this is nothing but the resistance presented to the output terminals of
the network. This is actually Thevenin equivalent resistance as we
explained in Thevenin's theorem if we consider the whole network as a
voltage source. Similarly, if we consider the network as current source,
this resistance will be Norton equivalent resistance as we explained in
Norton theorem.
TO UNDERSTAND MAXIMUM POWER TRANSFER:
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