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Paper Abstract and Keywords
Presentation 2011-10-14 14:55
A study of efficiency improvement of wireless power transfer by impedance matching
Kenichiro Ogawa, Noriaki Oodachi, Hiroki Kudo, Shuichi Obayashi, Hiroki Shoki (TOSHIBA), Tasuku Morooka AP2011-85
Abstract (in Japanese) (See Japanese page) 
(in English) In magnetic resonance type radio electric power transmission, when a foreign substance approaches a coil, impedance mismatching occurs. Thereby, the transmission efficiency in frequency to perform electric power transmission in deteriorates. In this paper, the composition which uses the loop for a resonance coil and excitation is used. In order to improve degradation of the transmission efficiency of this system, the composition which adds a capacitor to the loop by the side of power transmission is used.Because the impedance matching is done by adjusting the capacity value of the capacitor to minimize the amount of the reflection from the power transmission side, and the thing that the transmitting efficiency in the frequency in which the electric power wants to transmit is improved was confirmed by the measurement, it reports.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless Power Transfer / Magnetic Resonance / Transfer Efficiency / Impedance Matching / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 231, AP2011-85, pp. 49-54, Oct. 2011.
Paper # AP2011-85 
Date of Issue 2011-10-06 (AP) 
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 AP WPT  
Conference Date 2011-10-12 - 2011-10-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Kanagawa Womens Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2011-10-AP-WPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study of efficiency improvement of wireless power transfer by impedance matching 
Sub Title (in English)  
Keyword(1) Wireless Power Transfer  
Keyword(2) Magnetic Resonance  
Keyword(3) Transfer Efficiency  
Keyword(4) Impedance Matching  
1st Author's Name Kenichiro Ogawa  
1st Author's Affiliation TOSHIBA Corporation (TOSHIBA)
2nd Author's Name Noriaki Oodachi  
2nd Author's Affiliation TOSHIBA Corporation (TOSHIBA)
3rd Author's Name Hiroki Kudo  
3rd Author's Affiliation TOSHIBA Corporation (TOSHIBA)
4th Author's Name Shuichi Obayashi  
4th Author's Affiliation TOSHIBA Corporation (TOSHIBA)
5th Author's Name Hiroki Shoki  
5th Author's Affiliation TOSHIBA Corporation (TOSHIBA)
6th Author's Name Tasuku Morooka  
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Date Time 2011-10-14 14:55:00 
Presentation Time 25 
Registration for AP 
Paper # IEICE-AP2011-85 
Volume (vol) IEICE-111 
Number (no) no.231 
Page pp.49-54 
#Pages IEICE-6 
Date of Issue IEICE-AP-2011-10-06 

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