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

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-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 languageEnglish
Title of host publicationProceedings of 2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
Number of pages8
PublisherIEEE
Publication date2019
ISBN (Print)978-3-8007-4938-6
Publication statusPublished - 2019
Event2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management - NurnbergMesse , Nuremberg, Germany
Duration: 7 May 20199 May 2019

Conference

Conference2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
LocationNurnbergMesse
CountryGermany
CityNuremberg
Period07/05/201909/05/2019

Cite this

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

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PY - 2019

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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

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Dou Y, Ouyang Z, Andersen MAE. 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