dear:
in my 3000w pfc desingn with 28035, i found when output power close to 2200W,my design is change into overcurrent state,i used about 0.05 ohm resistor to obtain the current signal, the reference for the voltage comparator in tms28035 i set 900.the L=250uH,at the same time ,i also found the duty for pwm is about 78%. now I think whether it is because the duty ratio is too large to current ?
i do not know my idea is right or not ,who can help me ?