Question about Maximum Rectifier Efficiency with Wireless Power Transfer

Thread Starter


Joined Jan 5, 2018
I've been reading papers on wireless power transfer (including some journals) and single diode rectifiers are demonstrated with greater than 50% efficiency. Both half wave and voltage driven Class E rectifiers have shown this, even though they only conduct half the cycle. How is greater than 50% efficiency possible with this. Anyone have any clue what's going on?


Joined Sep 22, 2013
Doesn't seem to make much sense does it? It becoming a popular way to transfer and convert power. In some applications .....99% ....they are claiming.

I have only read a few articles about it. The power is being transferred and sometimes regulated thru the resonance of the circuit........not just thru the diode current.

The designs can get hairy and a lot of the parameters come from the circuit board materials and circuit layout........just like vhf, uhf circuits.

They have to be tuned......for a power bandpass.