Design the High-frequency DC-DC Converter with Integrated Coupled Inductor and Current-Balancing-Transformer

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

doi:10.1109/APEC39645.2020.9124329

Design the High-frequency DC-DC Converter with Integrated Coupled Inductor and Current-Balancing-Transformer

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

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

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Abstract

This paper presents a design for a high-frequency DC-DC converter with the coupled inductor and integrated current balancing transformer. The converter can deliver 32 W from 12 V intput to the 4 V output. A high efficiency and high power density are achieved by ZVS turn-on and the magnetic integrated. In order to deliver a 6 A rated output current, a two-phase QSW Buck converter operating at the synchronous mode is seleted as the topology to reduce the conduction loss both for the switches and the windings. The current unbalancing issue is solved by an integrated magnetic component with a customized core. The semiconductors selection and the core design are also discussed in the paper. A 1 MHz prototype is built to verify the design process. The prototype achieves 97.45% efficiency at 4 V/ 6 A output and the ZVS turn-on capability is also verified experimentally.

Original language	English
Title of host publication	Proceedings of 35th Annual IEEE Applied Power Electronics Conference and Exposition
Publisher	IEEE
Publication date	Mar 2020
Pages	2610-2616
Article number	9124329
ISBN (Electronic)	9781728148298
DOIs	https://doi.org/10.1109/APEC39645.2020.9124329
Publication status	Published - Mar 2020
Event	2020 IEEE Applied Power Electronics Conference and Exposition - New Orleans, United States Duration: 15 Mar 2020 → 19 Mar 2020 https://ieeexplore.ieee.org/xpl/conhome/9121924/proceeding

Conference

Conference	2020 IEEE Applied Power Electronics Conference and Exposition
Country/Territory	United States
City	New Orleans
Period	15/03/2020 → 19/03/2020
Sponsor	IEEE, Power Sources Manufacturers Association
Internet address	https://ieeexplore.ieee.org/xpl/conhome/9121924/proceeding

Keywords

Converter design
Coupled inductor
Current balancing transformer
High-frequency DC-DC converter
Planar magnetics
ZVS Buck converter

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title = "Design the High-frequency DC-DC Converter with Integrated Coupled Inductor and Current-Balancing-Transformer",

abstract = "This paper presents a design for a high-frequency DC-DC converter with the coupled inductor and integrated current balancing transformer. The converter can deliver 32 W from 12 V intput to the 4 V output. A high efficiency and high power density are achieved by ZVS turn-on and the magnetic integrated. In order to deliver a 6 A rated output current, a two-phase QSW Buck converter operating at the synchronous mode is seleted as the topology to reduce the conduction loss both for the switches and the windings. The current unbalancing issue is solved by an integrated magnetic component with a customized core. The semiconductors selection and the core design are also discussed in the paper. A 1 MHz prototype is built to verify the design process. The prototype achieves 97.45% efficiency at 4 V/ 6 A output and the ZVS turn-on capability is also verified experimentally.",

keywords = "Converter design, Coupled inductor, Current balancing transformer, High-frequency DC-DC converter, Planar magnetics, ZVS Buck converter",

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

year = "2020",

month = mar,

doi = "10.1109/APEC39645.2020.9124329",

language = "English",

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booktitle = "Proceedings of 35th Annual IEEE Applied Power Electronics Conference and Exposition",

publisher = "IEEE",

address = "United States",

note = "2020 IEEE Applied Power Electronics Conference and Exposition, APEC 2020 ; Conference date: 15-03-2020 Through 19-03-2020",

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}

Dou, Y, Ouyang, Z & Andersen, MAE 2020, Design the High-frequency DC-DC Converter with Integrated Coupled Inductor and Current-Balancing-Transformer. in Proceedings of 35th Annual IEEE Applied Power Electronics Conference and Exposition., 9124329, IEEE, pp. 2610-2616, 2020 IEEE Applied Power Electronics Conference and Exposition, New Orleans, Louisiana, United States, 15/03/2020. https://doi.org/10.1109/APEC39645.2020.9124329

Design the High-frequency DC-DC Converter with Integrated Coupled Inductor and Current-Balancing-Transformer. / Dou, Yi; Ouyang, Ziwei ; Andersen, Michael A.E.
Proceedings of 35th Annual IEEE Applied Power Electronics Conference and Exposition. IEEE, 2020. p. 2610-2616 9124329.

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

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N2 - This paper presents a design for a high-frequency DC-DC converter with the coupled inductor and integrated current balancing transformer. The converter can deliver 32 W from 12 V intput to the 4 V output. A high efficiency and high power density are achieved by ZVS turn-on and the magnetic integrated. In order to deliver a 6 A rated output current, a two-phase QSW Buck converter operating at the synchronous mode is seleted as the topology to reduce the conduction loss both for the switches and the windings. The current unbalancing issue is solved by an integrated magnetic component with a customized core. The semiconductors selection and the core design are also discussed in the paper. A 1 MHz prototype is built to verify the design process. The prototype achieves 97.45% efficiency at 4 V/ 6 A output and the ZVS turn-on capability is also verified experimentally.

AB - This paper presents a design for a high-frequency DC-DC converter with the coupled inductor and integrated current balancing transformer. The converter can deliver 32 W from 12 V intput to the 4 V output. A high efficiency and high power density are achieved by ZVS turn-on and the magnetic integrated. In order to deliver a 6 A rated output current, a two-phase QSW Buck converter operating at the synchronous mode is seleted as the topology to reduce the conduction loss both for the switches and the windings. The current unbalancing issue is solved by an integrated magnetic component with a customized core. The semiconductors selection and the core design are also discussed in the paper. A 1 MHz prototype is built to verify the design process. The prototype achieves 97.45% efficiency at 4 V/ 6 A output and the ZVS turn-on capability is also verified experimentally.

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Design the High-frequency DC-DC Converter with Integrated Coupled Inductor and Current-Balancing-Transformer

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