Series-parallel connected 10W/cm³ Dc-dc converter for advanced high-density converter design

Abstract

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/cm 3 has been fabricated, and experimental results have been shown to confirm the validity of the proposed approach. An advanced approach to achieve more than 10 W Icm 3 is also proposed on the basis of the series-parallel connection topology. Highly integrated dc-dc converters based on the integrated circuit technology contribute to achieving future higher density high-power converter design.

Wireless Input-Voltage-Sharing Control Strategy for Input-Series Output-Parallel (ISOP) System Based on Positive Output-Voltage Gradient Method

“…Hence, the proposed control strategy is more suitable for the application narrow input-voltage range. For instance, eight 48 V-48 V modules are used to construct a 384 V-48 V ISOP system for the server power supply, where the input voltage of the ISOP system is tightly regulated by a PFC converter [25]. …”