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DC-to-DC Module for Future Server Power Architecture

Fig. 1. 390V to 3.3V/25A LLC converter
(L W D: 4.2"1.25"0.45").
Researchers at CPES-VT cooperated with Intel on future server power architecture. This project is to design an isolated 80 W single output DC-DC module that operates from a nominal 400 V source. The module is intended to provide isolation and step-down to generate a bus voltage for powering server motherboard loads. High power-density, high efficiency, particularly at light loads, are among the design challenges.