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Paper Abstract and Keywords
Presentation 2017-01-27 13:10
Wide Load Range and High Power Efficiency Power Conversion with Unbalanced Parallel Operated LLC Resonant Converter
Shotaro Karasuyama, Hisashi Yamanaka, Yoichi Ishizuka (Nagasaki Univ.), Hisatsugu Kato (Tabuchi Electric/Nagasaki Univ.) EE2016-82
Abstract (in Japanese) (See Japanese page) 
(in English) One of the major issues for LLC current resonant converter is a large peak current because of resonance. If peak current increaser, conduction loss will be increased. In order to reduce a peak current, it is proposed parallel LLC resonant converter. However, if LLC resonant converter of same parameter connected in parallel, power efficiency is decreased at the light load because the fixed loss is increased. In this study, parallel unbalance LLC resonant DC-DC converter is proposed. An unbalance paralleled. An unbalance parallelization is using circuit of 100W and 200W in two parallel, if the output is taken as 300W.
Keyword (in Japanese) (See Japanese page) 
(in English) LLC Current Resonant DC-DC Converter / Unbalanced Parallel / Power Balance / Digital Controller / / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 429, EE2016-82, pp. 177-182, Jan. 2017.
Paper # EE2016-82 
Date of Issue 2017-01-19 (EE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee EE  
Conference Date 2017-01-26 - 2017-01-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagasaki University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EE 
Conference Code 2017-01-EE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Wide Load Range and High Power Efficiency Power Conversion with Unbalanced Parallel Operated LLC Resonant Converter 
Sub Title (in English)  
Keyword(1) LLC Current Resonant DC-DC Converter  
Keyword(2) Unbalanced Parallel  
Keyword(3) Power Balance  
Keyword(4) Digital Controller  
1st Author's Name Shotaro Karasuyama  
1st Author's Affiliation Nagasaki University (Nagasaki Univ.)
2nd Author's Name Hisashi Yamanaka  
2nd Author's Affiliation Nagasaki University (Nagasaki Univ.)
3rd Author's Name Yoichi Ishizuka  
3rd Author's Affiliation Nagasaki University (Nagasaki Univ.)
4th Author's Name Hisatsugu Kato  
4th Author's Affiliation Tabuchi Electric/Nagasaki University (Tabuchi Electric/Nagasaki Univ.)
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Speaker Author-1 
Date Time 2017-01-27 13:10:00 
Presentation Time 30 minutes 
Registration for EE 
Paper # EE2016-82 
Volume (vol) vol.116 
Number (no) no.429 
Page pp.177-182 
Date of Issue 2017-01-19 (EE) 

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