The discussion referred to was on a somewhat different topic - this one was more specific - that of which controller might be recommended? I too would love to know just exactly what is fed back in terms of a signal in order to achieve what?
Are we discussing a power source which sets a desired voltage level but compares the actual instantaneous output with the desired or is it some measure of a pulsed variable frequency square wave which is regulated by the reflected component voltage?
I thought that all my years in electronic control engineering left little room for non knowledge but I am definitely lacking in this area!
Regards