Hi

I developed this synchronous buck rectifier (LT spice simulation attached).
But i want to verify the efficiency since i seem to get the 'wrong' answer

efficiency = outputPower/inputPower

Note that all gate drivers are powered by the input power supply. I compute the average input current & output volltage by considering an integral number of cycles.

 

Hi

I developed this synchronous buck rectifier (LT spice simulation attached).
But i want to verify the efficiency since i seem to get the 'wrong' answer

efficiency = outputPower/inputPower

Note that all gate drivers are powered by the input power supply. I compute the average input current & output volltage by considering an integral number of cycles.

If you hold down Alt and right click on the power supply you can read the power using spice. Then do the same with the load.