Ucd style with si8244 gate driver

[PetruV]

put the current transformer in series with the inductor or simply add a sense winding to the output inductor

yes and low pass it to 20khz or something to get rid of the carrier current ,that could work,rectify it and stick it into a 555 monostable bonus points if it also runs into a limiter or vca kind of device to automatically lower drive before hitting a hard limit,hopefully the delay is not too large by the end of it