I am a new user to PI Expert and to PI chips. We need to design a 24 V @ 10 A power supply based upon TOP260YN chip. PI Expert calculated a design for the 220 VAC range, but I think it is impossible to achieve the input power range we need. I have seen that PI uses cascaded MOSFET on top of the MOSFET inside the chip, but I don't know how to design it. Could you help me modify the circuit that PI Expert suggested for the 220 VAC mains to work in an industrial environment with a single 380V AC mains 50 Hz ? Attached are a circuit snapshot and a PI Expert file containing the closest match to what we need except for AC input.
Thank you !