Part Number:UCC28180
Dears,
I am now using UCC28180 for PFC control. The problem is when I increased output power to 1.3KW, there has a peak on current.
This cause really high power loss. The AC input voltage is 220v. The output DC is 72V.
The voltage and current in 800W output：
Output current and voltage in 1.3KW:
THE schematic is similar with TIDA-00355. Some of R,L,C value are different, the overall structure is the same.