Power Stacked Structure: Multi-Phase Interleaved Resonant Converter Based on Y-Connection Transformer

Abstract

This paper proposes a new structure for offboard ultra-fast EV chargers, which facilitates simple power stacking for DC/DC converters. Originality work in this paper is the introduction of odd/even phases interleaved output current ripple characteristics and a unified R ac expression. The structure's advantages are comprehensively outlined, and validated through experimental testing.