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Contactless DC connector has been proposed for the next generation 380 V DC distribution system in data centers. A LLC resonant DC-DC converter topology with Gallium Nitride (GaN) power transistors has been applied to realize the short-distance inductively-coupled connector. A prototype of a 1.2 kW 384 V–192 V connector has been fabricated under 500 kHz operation. The conversion efficiency of 95%...
A novel approach has been proposed to expand the possibility of high-density converter design. The approach is based on series-parallel connection of low-power isolated dc-dc converters. A DC 384V - DC 384 V 2.4-kW isolated converter with 10 W/cm3 has been fabricated, and experimental results have been shown to confirm the validity of the proposed approach. An advanced approach to achieve more than...
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