Abstract – Multi-phase interleaved converters represent
interesting solutions in terms of reduced current rating of
each module, reduction of input and output current
ripples, and possibility of redundancy. However, when
attempt to interleave resonant converters operating at the
same switching frequency, the resonant
components’ tolerance can cause severe current
unbalance between them.
In this paper, a two-phase interleaved LLC resonant
converter is proposed that employs a current-controlled
inductor to adjust the resonance frequency of one
module, thus compensating for component mismatch.
Experimental results of a prototype rated at 24V-12A
output are presented, confirming the theoretical
forecasts.