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Highly efficient multi-cell rectifier using low-voltage GaN transistors has been proposed for future 380-V dc distribution in data centers. A 98.8% full-bridge 33- to 48-V ac-dc cell converter has been developed by using GaN transistors. This cell converter maximizes the performance of the multi-cell rectifier based on the series-parallel connection topology of isolated power converters. The potential...
Basic building blocks of power converters have been extracted for next generation 380 V DC distribution system. An approach has been proposed for realizing highly efficient and ultra-compact basic converters as bidirectional AC-DC converters, isolated DC-DC converters and non-isolated DC-DC converters. Based on the proposed approach, over 97 % efficient converters with 10 W/cm3 have been fabricated,...
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