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UCD3138FW-PFC: Power management forum

Part Number: UCD3138FW-PFC
Other Parts Discussed in Thread: UCD3138


1 - I want to change the circuit of  UCD3138 Single phase PFC of 360w rating to 2kw rating with 400v output in fusion digital power studio . Could you suggest me the calculations which i need to make for R1,R2,R3,R4,R5,R6 to change circuit from 360 w to 2kw??

2- what is the requited gain margin and phase margin for voltage and current loops to get a stable system ?? How to tune the values of Kp , Ki and Kd ??

Attaching image for your reference.

Thanks & Regards,