TIDT266 April 2022
This reference design provides an isolated +14-V, 56-W output with a quasi-resonant flyback topology. The power supply can be powered from the 350-V to 1000-V DC input. This design uses the cascode MOSFETs and the flyback UCC28740-Q1 controller. The line and load regulation is regulated to within ±1% precision. The peak efficiency is 84.6% at 1000-V input and 56-W output.