Compensating resonant converters

I had a question regarding the compensation of a resonant converter be it a resonant inverter or a half/full bridge converter that has DC output voltage or any of the ZVS/ZCS half wave or full wave QR or QSW converters that we studied in class. How do we go about compensating such converters? Is a typical PID controller enough like the one we studied in intro to Power electronics? Or is there something additional required? Any tips and references are appreciated.

How to find jm1 for active clamp forward?

I'm stuck as I can't seem to get an expression for jm1 for the active clamp forward.

Unable to view lectures

Anyone else having issues viewing lectures in cuengineeringonline. I have been unable to since this morning.

Gvd of full bridge

To find the Gvd of a full bridge: In a full bridge if the primary switches at fsw then the inductor sees 2fsw due to the center tapped secondary. So to fing the Gvd can we average the currents and voltage of C and L from 0 to Tsw/2 as from Tsw/2 to Tsw they are repeated?

Will this work? If it does it can be applied to a push pull converter and half bridge too, correct?

Proximity effect

Can we have a situation where m is less than 1? Certainly seems so from the geometry and MMF graph.