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 proceeding › Article in proceedings › Research › 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
Number of pages	8
Publisher	IEEE
Publication date	2019
ISBN (Print)	978-3-8007-4938-6
Publication status	Published - 2019
Event	2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management - NurnbergMesse , Nuremberg, Germany Duration: 7 May 2019 → 9 May 2019

Conference

Conference	2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
Location	NurnbergMesse
Country	Germany
City	Nuremberg
Period	07/05/2019 → 09/05/2019

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Cite this

@inproceedings{3a7ee2534d0b4e4fa1067a378613339a,

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",

publisher = "IEEE",

address = "United States",

note = "2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe Conference 2019 ; Conference date: 07-05-2019 Through 09-05-2019",

}

Dou, Y , Ouyang, Z & Andersen, MAE 2019, High-Frequency GaN-Based QSW Buck Converter with Coupled Inductor and Integrated Current-Balancing Transformer for Battery Fast Charging Application. in Proceedings of 2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. IEEE, 2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, Germany, 07/05/2019.

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. IEEE, 2019.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › 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.

M3 - Article in proceedings

SN - 978-3-8007-4938-6

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

PB - IEEE

T2 - 2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management

Y2 - 7 May 2019 through 9 May 2019

ER -