High-Frequency GaN-Based QSW Buck Converter with Coupled Inductor and Integrated Current-Balancing Transformer for Battery Fast Charging Application

Yi Dou; Ziwei Ouyang; Michael A. E. Andersen

High-Frequency GaN-Based QSW Buck Converter with Coupled Inductor and Integrated Current-Balancing Transformer for Battery Fast Charging Application

Yi Dou
, Ziwei Ouyang
, Michael A. E. Andersen

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

Abstract

This paper focuses on magnetic design for a high-frequency GaN-based dc-dc converter for fast battery charging application in portable devices. In order to enhance the current output capability of the converter, a two-phase quasi-square-wave (QSW) Buck based topology is adopted and a coupled inductor with integrated current-balancing transformer (CBT) is proposed to further increase the power density. Both the proposed topology and integrated magnetic structure are verified by the prototype with 94.5% maximum efficiency at 4V/7A output.

Original language	English
Title of host publication	Proceedings of 2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
Publication status	Published - 2019

Cite this

@inproceedings{0afe8d12f81742aa8eadf5ee996469bb,

title = "High-Frequency GaN-Based QSW Buck Converter with Coupled Inductor and Integrated Current-Balancing Transformer for Battery Fast Charging Application",

abstract = "This paper focuses on magnetic design for a high-frequency GaN-based dc-dc converter for fast battery charging application in portable devices. In order to enhance the current output capability of the converter, a two-phase quasi-square-wave (QSW) Buck based topology is adopted and a coupled inductor with integrated current-balancing transformer (CBT) is proposed to further increase the power density. Both the proposed topology and integrated magnetic structure are verified by the prototype with 94.5\% maximum efficiency at 4V/7A output.",

author = "Yi Dou and Ziwei Ouyang and Andersen, \{Michael A. E.\}",

year = "2019",

language = "English",

isbn = "978-3-8007-4938-6",

booktitle = "Proceedings of 2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management",

}

High-Frequency GaN-Based QSW Buck Converter with Coupled Inductor and Integrated Current-Balancing Transformer for Battery Fast Charging Application. / Dou, Yi; Ouyang, Ziwei; Andersen, Michael A. E.
Proceedings of 2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. 2019.

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

TY - GEN

T1 - High-Frequency GaN-Based QSW Buck Converter with Coupled Inductor and Integrated Current-Balancing Transformer for Battery Fast Charging Application

AU - Dou, Yi

AU - Ouyang, Ziwei

AU - Andersen, Michael A. E.

PY - 2019

Y1 - 2019

N2 - This paper focuses on magnetic design for a high-frequency GaN-based dc-dc converter for fast battery charging application in portable devices. In order to enhance the current output capability of the converter, a two-phase quasi-square-wave (QSW) Buck based topology is adopted and a coupled inductor with integrated current-balancing transformer (CBT) is proposed to further increase the power density. Both the proposed topology and integrated magnetic structure are verified by the prototype with 94.5% maximum efficiency at 4V/7A output.

AB - This paper focuses on magnetic design for a high-frequency GaN-based dc-dc converter for fast battery charging application in portable devices. In order to enhance the current output capability of the converter, a two-phase quasi-square-wave (QSW) Buck based topology is adopted and a coupled inductor with integrated current-balancing transformer (CBT) is proposed to further increase the power density. Both the proposed topology and integrated magnetic structure are verified by the prototype with 94.5% maximum efficiency at 4V/7A output.

UR - https://orbit.dtu.dk/en/publications/3a7ee253-4d0b-4e4f-a106-7a378613339a

M3 - Conference proceeding

SN - 978-3-8007-4938-6

BT - Proceedings of 2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management

ER -

High-Frequency GaN-Based QSW Buck Converter with Coupled Inductor and Integrated Current-Balancing Transformer for Battery Fast Charging Application

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