Hi,

I designed this circuit with discrete high side bootstrap driver. I decided not to use IR2110 or transformer gate drive.
I dont know why but I hadn't luck with IR2110.

Lets start with the controller part:



I used the first error amplifier for feedback regulation and the 2nd for current limiting.
I supply the IC with 15V zener diode feeded from 320V with two 68k 2W resistors in parallel. I think this is enough like its in IR2153.

Now the power part: