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Paper Abstract and Keywords
Presentation 2021-05-27 10:20
Proposal for the Optimum Operating Frequency Search Method Based on Transmission Side Information of Wireless Power Transfer Circuit
Taichi Mishima, Yuki Ito, Shingo Nagaoka, Takeshi Uematsu (OMRON) EE2021-4
Abstract (in Japanese) (See Japanese page) 
(in English) Wireless power transfer can be expected for the improvement of convenience and Improved occupancy rate of electrical equipment equipped with a battery, but since the positional relationship between transmission and reception coils is not fixed, to maximize power conversion efficiency, necessary to select the optimum operating frequency for each relationship between transmission and reception coils. In this paper, we focused on the method of searching for the optimum operating frequency in the wireless power transfer circuit, and we propose the method of searching for the frequency that maximizes the power factor of the power transmission side circuit and the transmission efficiency between coils, without using wireless communication. The circuit examined is a composite resonance circuit with series resonance on both the power transmission side and the power reception side, and the operating frequency range is 79-90 kHz. By detecting the input current of the circuit on the power transmission side, it was clarified that the optimum operating frequency can be searched without using wireless communication between power transmission side and power reception side.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless power transfer / Power factor / Efficiency / Frequency search / Wireless communication / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 40, EE2021-4, pp. 19-24, May 2021.
Paper # EE2021-4 
Date of Issue 2021-05-20 (EE) 
ISSN 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 EE2021-4

Conference Information
Committee EE IEE-HCA  
Conference Date 2021-05-27 - 2021-05-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Switching power supply, New industrial and home appliance for power, others 
Paper Information
Registration To EE 
Conference Code 2021-05-EE-HCA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal for the Optimum Operating Frequency Search Method Based on Transmission Side Information of Wireless Power Transfer Circuit 
Sub Title (in English)  
Keyword(1) Wireless power transfer  
Keyword(2) Power factor  
Keyword(3) Efficiency  
Keyword(4) Frequency search  
Keyword(5) Wireless communication  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Taichi Mishima  
1st Author's Affiliation OMRON Corporation (OMRON)
2nd Author's Name Yuki Ito  
2nd Author's Affiliation OMRON Corporation (OMRON)
3rd Author's Name Shingo Nagaoka  
3rd Author's Affiliation OMRON Corporation (OMRON)
4th Author's Name Takeshi Uematsu  
4th Author's Affiliation OMRON Corporation (OMRON)
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Speaker Author-1 
Date Time 2021-05-27 10:20:00 
Presentation Time 25 minutes 
Registration for EE 
Paper # EE2021-4 
Volume (vol) vol.121 
Number (no) no.40 
Page pp.19-24 
#Pages 6 
Date of Issue 2021-05-20 (EE) 

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