For my thesis I have been asked to test the LTC4125 transmitter IC coupled with the LTC4124 and LTC4126, and test which one works better for WPT in medical devices, considering that the power to deliver is around 50 mW and I am not using the receiver circuit to charge a battery. So there is no battery but just a large capacitor.
I have already built the circuit on the breadboard as suggested in the datasheet of the LTC4124 as posted in the photo attached, but I was wondering: the reason why the efficiency measured is very low may depend on the fact that there is no battery?
Then, literature says that to increase the efficiency, closing the loop is ideal. Do you have idea if it's actually possible to close the loop on the breadboard? Is a microcontroller necessary in this case?
Thanks in advance.
