The only other thing i can think of is the gate source resistor is not close enough to the FET. Or the gate trace is to long and could be oscillating.wally7856 Yesterday, 02:20 PM
doesnt his schematic have 1k gate-source resistors?
i have a similar issue with my attempt on a simple IR2153 HB converter. used a 27k 6W
Here is a suggested answer to your problem.
I understand that you use PWM with a duty-cycle below 50%. This results in long deadtime and can trigger the intrinsic body diodes of Power-Mosfets, whichmark space 11-29-2015, 01:22 PM
I have a problem now with IR2110 (lol!). I remember someone here suggested me that I will have problems with it, there you go.