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Industry Sessions

IS13.2 - High Power Density 8kW Power Supply for Server and Data Center Applications

Wednesday, March 19, 2025
1:55 PM – 2:20 PM ET
Location: Level Four, A412
Presentation Description: This industry session will introduce an 8 kW server power supply for supporting the foreseen power demand of artificial intelligence applications in data centers. The presented power supply utilizes the three available power semiconductor technologies in an interleaved totem-pole PFC and a full bridge LLC, with 400 kHz resonance frequency, to obtain a peak efficiency of 97.5%. Furthermore, the form factor has been reduced a 38% in respect to the ORv3 requirement, for a total power density of 100 W/in3. Design considerations as EMI reduction with interleaving, LLC transformer design for high power density, hold-up time extension and re-rush limitation and mechanical and thermal considerations will be presented.