TIDT292 June 2022
This board is a compact, 30-V DC, 400-W reference design for avionics applications, working with mains frequency between 400 Hz and 800 Hz. A two-phase interleaved transition mode (TM) power factor correction (PFC) based on the UCC28064A is used to correct power factor and at the same time to minimizes harmonic content of input current. The DC/DC is implemented employing the HB-LLC stage, using UCC256404 device. The efficiency is further improved by using synchronous rectification on the secondary side.
The reference design PMP31179 Rev_A was built on the PMP30763 Rev_D PCB.