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Paper Abstract and Keywords
Presentation 2017-07-27 09:30
[Invited Lecture] 6.78-MHz Current Doubler Rectifier with High-Q Inductor
Kyohei Yamada (TUT) EE2017-10 WPT2017-15
Abstract (in Japanese) (See Japanese page) 
(in English) This technical report talks about prototyping of a 6.78-MHz current doubler rectifier in which an inductor with high unloaded Q factor is used for impedance matching. The rectifier was fabricated for Radio Frequency Rectifier Competition, sponsored by IEICE Technical Committee on Wireless Power Transfer, held in 2017 IEICE General Conference, and recorded the highest power conversion efficiency of 76.7% in the competition.
The key points of the fabrication are choice of the efficient rectifier topology and low-loss impedance matching. Focusing on these two points, the process to select current doubler, and what I minded when I designed the high-Q inductor are noted.
Keyword (in Japanese) (See Japanese page) 
(in English) wireless power transfer / circuit competition / rectifier / unloaded Q factor / inductor / ISM band / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 158, WPT2017-15, pp. 1-4, July 2017.
Paper # WPT2017-15 
Date of Issue 2017-07-20 (EE, WPT) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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)
Download PDF EE2017-10 WPT2017-15

Conference Information
Committee EE WPT IEE-SPC  
Conference Date 2017-07-27 - 2017-07-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WPT 
Conference Code 2017-07-EE-WPT-SPC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) 6.78-MHz Current Doubler Rectifier with High-Q Inductor 
Sub Title (in English)  
Keyword(1) wireless power transfer  
Keyword(2) circuit competition  
Keyword(3) rectifier  
Keyword(4) unloaded Q factor  
Keyword(5) inductor  
Keyword(6) ISM band  
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1st Author's Name Kyohei Yamada  
1st Author's Affiliation Toyohashi University of Technology (TUT)
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Speaker Author-1 
Date Time 2017-07-27 09:30:00 
Presentation Time 25 minutes 
Registration for WPT 
Paper # EE2017-10, WPT2017-15 
Volume (vol) vol.117 
Number (no) no.157(EE), no.158(WPT) 
Page pp.1-4 
#Pages 4 
Date of Issue 2017-07-20 (EE, WPT) 

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