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An inductively coupled 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 highly efficient contactless power transfer. A prototype of a 1.2-kW 384- to 192-V connector has been fabricated and the conversion...
Contactless DC connector has been proposed for high power density 380 V DC power feeding system. A LLC resonant DC-DC converter topology with GaN power transistors and Si-SBDs has been applied to realize high frequency and high efficiency inductively-coupled contactless DC connector. ISOP (input series and output parallel)-IPOS (input parallel and output series) connection topology has been also employed...
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%...
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