High Step-Down Single-Stage DC-DC Converter with Improved Planar Matrix Transformer for High-Current Data Center Application

Chang Wang; Mingxiao Li; Ziwei Ouyang; Zhe Zhang; Gabriel Zsurzsan; Michael A.E. Andersen

doi:10.1109/APEC43599.2022.9773658

High Step-Down Single-Stage DC-DC Converter with Improved Planar Matrix Transformer for High-Current Data Center Application

Chang Wang, Mingxiao Li, Ziwei Ouyang, Zhe Zhang, Gabriel Zsurzsan, Michael A.E. Andersen

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

The torrent of information technology assigns a significant role to the nowaday data center. Since substantial energy consumption is reported in data center operation, the point-of-load (POL) converter in data center desiderates high efficiency and high power density to output a large current for the specific server. A 4-phases LLC converter is designed by implementing an improved matrix magnetic core along with the interleaving and integration of windings. Balanced current sharing and less conduction loss are achieved by the interleaving and integration strategies. An 800 W LLC experimental prototype is built under 500 kHz switching frequency with 40V-48V/5V-6V voltage conversion. Peak efficiency achieves 98.1% along with power density of 240 W/in3 with the experimental result. Excellent thermal performance is achieved along with the potential for delivering more power.

Original language	English
Title of host publication	Proceedings of 2022 IEEE Applied Power Electronics Conference and Exposition
Publisher	IEEE
Publication date	2022
Pages	709-715
ISBN (Print)	978-1-6654-0689-5
DOIs	https://doi.org/10.1109/APEC43599.2022.9773658
Publication status	Published - 2022
Event	2022 IEEE Applied Power Electronics Conference and Exposition - George R. Brown Convention Center, Houston, United States Duration: 20 Mar 2022 → 24 Mar 2022

Conference

Conference	2022 IEEE Applied Power Electronics Conference and Exposition
Location	George R. Brown Convention Center
Country/Territory	United States
City	Houston
Period	20/03/2022 → 24/03/2022

Keywords

Data center
LLC
Magnetic integration
Matrix transformer
Point-of-load converter
POL converter

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/APEC43599.2022.9773658

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@inproceedings{92c6f7fb3a26429aa2b4ff3dbf6b4f49,

title = "High Step-Down Single-Stage DC-DC Converter with Improved Planar Matrix Transformer for High-Current Data Center Application",

abstract = "The torrent of information technology assigns a significant role to the nowaday data center. Since substantial energy consumption is reported in data center operation, the point-of-load (POL) converter in data center desiderates high efficiency and high power density to output a large current for the specific server. A 4-phases LLC converter is designed by implementing an improved matrix magnetic core along with the interleaving and integration of windings. Balanced current sharing and less conduction loss are achieved by the interleaving and integration strategies. An 800 W LLC experimental prototype is built under 500 kHz switching frequency with 40V-48V/5V-6V voltage conversion. Peak efficiency achieves 98.1% along with power density of 240 W/in3 with the experimental result. Excellent thermal performance is achieved along with the potential for delivering more power.",

keywords = "Data center, LLC, Magnetic integration, Matrix transformer, Point-of-load converter, POL converter",

author = "Chang Wang and Mingxiao Li and Ziwei Ouyang and Zhe Zhang and Gabriel Zsurzsan and Andersen, {Michael A.E.}",

note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 IEEE Applied Power Electronics Conference and Exposition , APEC 2022 ; Conference date: 20-03-2022 Through 24-03-2022",

year = "2022",

doi = "10.1109/APEC43599.2022.9773658",

language = "English",

isbn = "978-1-6654-0689-5",

pages = "709--715",

booktitle = "Proceedings of 2022 IEEE Applied Power Electronics Conference and Exposition",

publisher = "IEEE",

address = "United States",

}

Wang, C, Li, M, Ouyang, Z, Zhang, Z, Zsurzsan, G & Andersen, MAE 2022, High Step-Down Single-Stage DC-DC Converter with Improved Planar Matrix Transformer for High-Current Data Center Application. in Proceedings of 2022 IEEE Applied Power Electronics Conference and Exposition. IEEE, pp. 709-715, 2022 IEEE Applied Power Electronics Conference and Exposition , Houston, Texas, United States, 20/03/2022. https://doi.org/10.1109/APEC43599.2022.9773658

High Step-Down Single-Stage DC-DC Converter with Improved Planar Matrix Transformer for High-Current Data Center Application. / Wang, Chang; Li, Mingxiao; Ouyang, Ziwei et al.
Proceedings of 2022 IEEE Applied Power Electronics Conference and Exposition. IEEE, 2022. p. 709-715.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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AU - Wang, Chang

AU - Li, Mingxiao

AU - Ouyang, Ziwei

AU - Zhang, Zhe

AU - Zsurzsan, Gabriel

AU - Andersen, Michael A.E.

PY - 2022

Y1 - 2022

N2 - The torrent of information technology assigns a significant role to the nowaday data center. Since substantial energy consumption is reported in data center operation, the point-of-load (POL) converter in data center desiderates high efficiency and high power density to output a large current for the specific server. A 4-phases LLC converter is designed by implementing an improved matrix magnetic core along with the interleaving and integration of windings. Balanced current sharing and less conduction loss are achieved by the interleaving and integration strategies. An 800 W LLC experimental prototype is built under 500 kHz switching frequency with 40V-48V/5V-6V voltage conversion. Peak efficiency achieves 98.1% along with power density of 240 W/in3 with the experimental result. Excellent thermal performance is achieved along with the potential for delivering more power.

AB - The torrent of information technology assigns a significant role to the nowaday data center. Since substantial energy consumption is reported in data center operation, the point-of-load (POL) converter in data center desiderates high efficiency and high power density to output a large current for the specific server. A 4-phases LLC converter is designed by implementing an improved matrix magnetic core along with the interleaving and integration of windings. Balanced current sharing and less conduction loss are achieved by the interleaving and integration strategies. An 800 W LLC experimental prototype is built under 500 kHz switching frequency with 40V-48V/5V-6V voltage conversion. Peak efficiency achieves 98.1% along with power density of 240 W/in3 with the experimental result. Excellent thermal performance is achieved along with the potential for delivering more power.

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KW - LLC

KW - Magnetic integration

KW - Matrix transformer

KW - Point-of-load converter

KW - POL converter

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M3 - Article in proceedings

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BT - Proceedings of 2022 IEEE Applied Power Electronics Conference and Exposition

PB - IEEE

T2 - 2022 IEEE Applied Power Electronics Conference and Exposition

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ER -

High Step-Down Single-Stage DC-DC Converter with Improved Planar Matrix Transformer for High-Current Data Center Application

Abstract

Conference

Keywords

UN SDGs

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