Optimal Design of Planar Magnetic Components for a Two-Stage GaN-Based DC-DC Converter
Fu, Minfan1,2; Fei, Chao2,3; Yang, Yuchen2; Li, Qiang2; Lee, Fred C.2
2019-04
Source PublicationIEEE TRANSACTIONS ON POWER ELECTRONICS
ISSN0885-8993
Volume34Issue:4Pages:3329-3338
Status已发表
DOI10.1109/TPEL.2018.2849741
AbstractThis paper develops a 200-W wide-input-range (64-160-to-24-V) rail grade dc-dc converter based on gallium nitride devices. A two-stage configuration is proposed. The first regulated stage is a two-phase interleaved buck converter (> 400 kHz), and the second unregulated stage is an LLC (2-MHz) dc transformer. In order to achieve high frequency and high efficiency, the critical-mode operation is applied for the buck converter, and the negative coupled inductors are used to reduce the frequency and the conduction losses. Then, a systematical methodology is proposed to optimize the planar-coupled inductors. For the unregulated LLC converter, it can always work at itsmost efficient point, and an analytical model is used to optimize the planar transformer. Finally, the proposed dc-dc converter, built in a quarter brick form factor, is demonstrated with a peak efficiency of 95.8% and a power density of 195 W/in(3).
KeywordCoupled inductors critical current mode gallium nitride (GaN) devices LLC converter planar magnetic integration
URL查看原文
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000461254000031
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS KeywordBOOST-CONVERTER ; TRANSFORMER
Original Document TypeArticle
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://kms.shanghaitech.edu.cn/handle/2MSLDSTB/29164
Collection信息科学与技术学院_PI研究组_傅旻帆组
Corresponding AuthorLi, Qiang
Affiliation1.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China
2.Virginia Polytech Inst & State Univ, Ctr Power Elect Syst, Blacksburg, VA 24061 USA
3.Google Inc, Mountain View, CA 94043 USA
First Author AffilicationSchool of Information Science and Technology
First Signature AffilicationSchool of Information Science and Technology
Recommended Citation
GB/T 7714
Fu, Minfan,Fei, Chao,Yang, Yuchen,et al. Optimal Design of Planar Magnetic Components for a Two-Stage GaN-Based DC-DC Converter[J]. IEEE TRANSACTIONS ON POWER ELECTRONICS,2019,34(4):3329-3338.
APA Fu, Minfan,Fei, Chao,Yang, Yuchen,Li, Qiang,&Lee, Fred C..(2019).Optimal Design of Planar Magnetic Components for a Two-Stage GaN-Based DC-DC Converter.IEEE TRANSACTIONS ON POWER ELECTRONICS,34(4),3329-3338.
MLA Fu, Minfan,et al."Optimal Design of Planar Magnetic Components for a Two-Stage GaN-Based DC-DC Converter".IEEE TRANSACTIONS ON POWER ELECTRONICS 34.4(2019):3329-3338.
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