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https://hdl.handle.net/20.500.14094/0100488374

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Metadata ID
0100488374
Access Rights
open access
Version
Accepted Manuscript
Title
MHz-Driven Snubberless Soft-Switching Current-Fed Multiresonant DC-DC Converter
Author
Mishima, Tomokazu ; Liu, Shiqiang ; Taguchi, Ryotaro ; Lai, Ching-Ming
Author ID
A1733
NRID
1000040370019
ORCID
0000-0002-5170-277X
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=c3bfabda904cb619520e17560c007669
Author Name
Mishima, Tomokazu
三島, 智和
ミシマ, トモカズ
Affiliation
海事科学研究科
Author Name
Liu, Shiqiang
Author Name
Taguchi, Ryotaro
Author Name
Lai, Ching-Ming
language
English (英語)
Source Title
IEEE Transactions on Power Electronics
Volume (Issue)
39(7)
Page
8404-8416
Publisher
IEEE
Date of Publication
2024-07
Date of Deposit
2024-04-02
Abstract
A new multiresonant step-up dc-dc converter is proposed in this article, which is suitable for obtaining a high dc-dc voltage ratio with minimizing the counts of active and passive components. The proposed dc-dc converter features the snubberless zero current soft-switching (ZCS) commutation with megahertz (MHz) high frequency driving of GalliumNitride-High Electron Mobility Transistor (GaN-HEMT)- based two-phase class-E inverters by adopting quasi resonance and dual parallel load resonance; multiresonant circuitry. The circuit configuration and operation principle are described together with the theory of switch-mode transitions and steadystate power transfer. A frequency-domain analysis is provided on the basis of the equivalent circuit, and the design guideline of multiresonant tanks is provided in details. The essential performances of the proposed dc-dc converter are demonstrated by experiment of 1-2 MHz / 120W prototype; ZCS operations are confirmed over the wide range of load variations (40-100%) with maximum efficiency 91.3% at 86.5% load, electromagnetic interference (EMI) noise reduction 29-79% as compared to hard switching, and the voltage ratio 1.5 times higher than the non-multiresonant topology, and less than 1% low-current ripple factor in the dc inductor.
Keywords
current-fed high frequency inverter
high stepup dc-dc converter
interleaved
multiresonant converter
snubberless
zero current soft-switching (ZCS)
Category
Graduate School of Maritime Sciences
Journal Article
Rights
© 2024, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Relation
DOI
https://doi.org/10.1109/TPEL.2024.3380069