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＜departmental bulletin paper＞
Design Consideration of Low-Profile LLC Resonant Converter for Reducing Temperature of the Transformer

Creator
Author PID
K005019
Creator Name
Yang, Sihun
梁, 時熏
ヤン, シフン
Affiliation
Affiliation Name
Department of Electrical and Electronic Engineering, Graduate Student
九州大学大学院システム情報科学府電気電子工学専攻博士後期課程
Author PID
K002889
Creator Name
Abe, Seiya
安部, 征哉
アベ, セイヤ
Affiliation
Affiliation Name
The International Centre for the Study of East Asian Development
国際東アジア研究センター
Author PID
K000230
Creator Name
Shoyama, Masahito
庄山, 正仁
ショウヤマ, マサヒト
Affiliation
Affiliation Name
Department of Electrical Engineering
九州大学大学院システム情報科学研究院電気システム工学部門
Language
English
Publisher
九州大学大学院システム情報科学研究院
Faculty of Information Science and Electrical Engineering, Kyushu University
Date
2012-09-26
Source Title
Research reports on information science and electrical engineering of Kyushu University
Vol
17
Issue
2
First Page
49
Last Page
54
Publication Type
Version of Record
Access Rights
open access
JaLC DOI
https://doi.org/10.15017/26513
Related DOI
Research Reports on Information Science and Electrical Engineering of Kyushu University || 17(2) || p49-54
九州大学大学院システム情報科学紀要 || 17(2) || p49-54
https://portal.isee.kyushu-u.ac.jp/
Related URI
Research Reports on Information Science and Electrical Engineering of Kyushu University || 17(2) || p49-54
九州大学大学院システム情報科学紀要 || 17(2) || p49-54
https://portal.isee.kyushu-u.ac.jp/
Relation
Research Reports on Information Science and Electrical Engineering of Kyushu University || 17(2) || p49-54
九州大学大学院システム情報科学紀要 || 17(2) || p49-54
https://portal.isee.kyushu-u.ac.jp/
Abstract This paper presents the design consideration of a low-profile LLC resonant converter using two flat transformers. The trend toward high power density, high efficiency, and low profile in power supplie...s has exposed a number of limitations in the use of magnetic component structures. The LLC resonant converter can be operated at a high switching frequency with high efficiency because the switching loss is reduced by soft-switching. However, flat transformer loss causes problems at a high switching frequency. As a result, temperature of flat transformers becomes high. Therefore, it is necessary to reduce the transformer temperature by analyzing the loss. In this proposed converter, flat transformer is integrated into advanced power conversion application systems. Low-profile power module of profile of about 14mm is achieved. Temperature inside of transformer repressed to 66.5 ℃ and an overall efficiency of about 96.5% was obtained.show more

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Details

PISSN
1342-3819
EISSN
2188-0891
NCID
AN10569524
Record ID
26513
Peer-Reviewed
Refereed
Subject Terms
LLC resonant converter
soft switching
Thermal design
flat transformer
Type
紀要論文
Created Date 2013.06.13
Modified Date 2020.11.27

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