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Paper Abstract and Keywords
Presentation 2020-01-15 10:00
Study on Design Method of Wireless Power Transfer Circuit using Load Independence
Takeshi Uematsu, Yuki Ito, Taichi Mishima, Goro Nakao, Shingo Nagaoka (OMRON), Hiroo Sekiya (Chiba Univ.) EE2019-49
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we focused on the load independence of the wireless power transfer circuit and examined the circuit design that can easily CV/CC charging. The analyzed circuit is a multi-resonant circuit in which the primary side and the secondary side are both series resonant. We examined a design method in which the operating frequency range of CV/CC charging is 79 -90 kHz and clarified that it cannot be realized unless the coupling coefficient is 0.298 or less. Also, the load-independent mechanism is examined, and we found that the change in the input effective power contributes and that the input power factor is always 1 for CC charging.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless power transfer / Load independence / Multi-Resonant circuit / CV/CC charging / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 364, EE2019-49, pp. 1-6, Jan. 2020.
Paper # EE2019-49 
Date of Issue 2020-01-08 (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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EE2019-49

Conference Information
Committee EE  
Conference Date 2020-01-15 - 2020-01-16 
Place (in Japanese) (See Japanese page) 
Place (in English) HOUZAN HALL 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EE 
Conference Code 2020-01-EE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on Design Method of Wireless Power Transfer Circuit using Load Independence 
Sub Title (in English)  
Keyword(1) Wireless power transfer  
Keyword(2) Load independence  
Keyword(3) Multi-Resonant circuit  
Keyword(4) CV/CC charging  
1st Author's Name Takeshi Uematsu  
1st Author's Affiliation OMRON Corporation (OMRON)
2nd Author's Name Yuki Ito  
2nd Author's Affiliation OMRON Corporation (OMRON)
3rd Author's Name Taichi Mishima  
3rd Author's Affiliation OMRON Corporation (OMRON)
4th Author's Name Goro Nakao  
4th Author's Affiliation OMRON Corporation (OMRON)
5th Author's Name Shingo Nagaoka  
5th Author's Affiliation OMRON Corporation (OMRON)
6th Author's Name Hiroo Sekiya  
6th Author's Affiliation Chiba University (Chiba Univ.)
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Date Time 2020-01-15 10:00:00 
Presentation Time 25 
Registration for EE 
Paper # IEICE-EE2019-49 
Volume (vol) IEICE-119 
Number (no) no.364 
Page pp.1-6 
#Pages IEICE-6 
Date of Issue IEICE-EE-2020-01-08 

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