what is the accurate method for measuring dc input power of a square wave inverter,with variable duty cycle?how does the current fed back to battery(through reverse diodes of mosfets) when the two mosfets are OFF is accounted(considering push-pull operation). Will the RMS power be equal to the average power if we consider near
50% operation? there is no active clamp circuit and consider 50hz operation(no hf dc-dc link) with iron core transformer