> I got some doubts on theoretical concepts,
> 
> Maximum power transfer theorem states that maximum power
> is supplied to the load when load resistance is equal to output
> impedance. so in that case , efficiency will be only 50% .
> 
> But class C ,D  amplifiers claim more than 50% efficiency. 
> If we match impedance , will it reduce their efficiency ?

I don't see any discrepancy. Read carefully, maximum efficiency is not
the same as maxium power supplied to the load.

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu
 

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