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Paper Abstract and Keywords
Presentation 2015-03-25 10:35
Development of Microwave Power Receiving Device for Driving DC Motor with Dynamic Resistance Characteristic
Yong Huang, Takaki Ishikawa, Tomohiko Mitani, Naoki Shinohara (Kyoto Univ.) WPT2014-103
Abstract (in Japanese) (See Japanese page) 
(in English) Input load characteristics of DC motor fluctuate as the input power is changed. Also the conversion efficiency of a RF-DC rectifier circuit is strictly affected by the output load. To drive a DC motor by microwave power transfer (MPT), we have to improve the efficiency-load characteristics of rectifying circuit. This study proposes a power-receiving device consisted of a rectenna array and a special buck-boost converter with constant input load characteristics. We design four different power-receiving devices combined by two different rectennas and two different buck-boost converters. We conduct experiments on driving a low-power DC motor by MPT using the power-receiving device. We successfully drive the DC motor at the maximum efficiency point of the rectifying circuit despite different power levels. The measured overall efficiency from receiving antenna array to the input of DC motor is over 70%.
Keyword (in Japanese) (See Japanese page) 
(in English) DC motor / MPT / buck-boost converter / RF-DC conversion efficiency / rectenna array / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 524, WPT2014-103, pp. 49-54, March 2015.
Paper # WPT2014-103 
Date of Issue 2015-03-17 (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)
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Conference Information
Committee WPT  
Conference Date 2015-03-24 - 2015-03-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Univ. Uji Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Power Transfer, SPS Technology, etc 
Paper Information
Registration To WPT 
Conference Code 2015-03-WPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of Microwave Power Receiving Device for Driving DC Motor with Dynamic Resistance Characteristic 
Sub Title (in English)  
Keyword(1) DC motor  
Keyword(2) MPT  
Keyword(3) buck-boost converter  
Keyword(4) RF-DC conversion efficiency  
Keyword(5) rectenna array  
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Keyword(7)  
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1st Author's Name Yong Huang  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Takaki Ishikawa  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Tomohiko Mitani  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Naoki Shinohara  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2015-03-25 10:35:00 
Presentation Time 25 minutes 
Registration for WPT 
Paper # WPT2014-103 
Volume (vol) vol.114 
Number (no) no.524 
Page pp.49-54 
#Pages 6 
Date of Issue 2015-03-17 (WPT) 

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