SLUAAD0 September 2021 UCC28064A
From the test results and accompanying waveforms, it was demonstrated that the paralleled TM interleaved PFC controller using simple external components was able to achieve natural load balance without requiring an additional load-sharing device. Additionally, this solution lends itself to smaller inductors, lower switching frequencies and smaller peak currents resulting in high Power Factor (PF) and low Total Harmonic Distortion (THD). It was demonstrated that multi-phase load sharing can be accomplished through a simple parallel solution consisting of two UCC28064A controllers.