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Paper Abstract and Keywords
Presentation 2018-10-03 11:45
Improvement of Efficiency in High Frequency Using Soft Switching MVAC Converter
Daiki Nagashima, Masahito Shoyama (Kyushu Univ.), Mitsuru Sato, Shingo Nagaoka (OMRON Corp.) EE2018-20
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, the power conversion circuit has been used in a wide range of applications, and further miniaturization and high efficiency of the circuit are demanded.A method for downsizing the switching power supply is to increase the switching frequency However, since the switching loss increases in proportion to the frequency, it causes a decrease in the power conversion efficiency. Therefore, for the purpose of preventing increase of the switching loss while increasing the frequency, the soft switching DC - In this research, we developed a simple boosting circuit that performs hard switching and a Minimum-Voltage Active-Voltage control circuit that performs soft switching using a DC-DC converter, Minimum-Voltage Active-Clamping DC-DC Converter. Perform comparison of the efficiency of the clamping DC-DC converter in the actual machine at 100 kHz to 300 kHz, and the efficiency improvement effect by the soft switching effect Experiments were also conducted on the effect of reducing the turn-off loss when adding a snubber capacitor between the drain and the source for the purpose of further increasing the efficiency of the MVAC circuit.
Keyword (in Japanese) (See Japanese page) 
(in English) Soft Switching / ZVS / High Frequency / Boost DC-DC Converter / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 226, EE2018-20, pp. 11-16, Oct. 2018.
Paper # EE2018-20 
Date of Issue 2018-09-26 (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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EE2018-20

Conference Information
Committee WPT EE  
Conference Date 2018-10-03 - 2018-10-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Univ. Uji Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Power conversion, Wireless power transfer, others 
Paper Information
Registration To EE 
Conference Code 2018-10-WPT-EE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement of Efficiency in High Frequency Using Soft Switching MVAC Converter 
Sub Title (in English)  
Keyword(1) Soft Switching  
Keyword(2) ZVS  
Keyword(3) High Frequency  
Keyword(4) Boost DC-DC Converter  
1st Author's Name Daiki Nagashima  
1st Author's Affiliation Kyushu University (Kyushu Univ.)
2nd Author's Name Masahito Shoyama  
2nd Author's Affiliation Kyushu University (Kyushu Univ.)
3rd Author's Name Mitsuru Sato  
3rd Author's Affiliation OMRON Corporation (OMRON Corp.)
4th Author's Name Shingo Nagaoka  
4th Author's Affiliation OMRON Corporation (OMRON Corp.)
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Date Time 2018-10-03 11:45:00 
Presentation Time 20 
Registration for EE 
Paper # IEICE-EE2018-20 
Volume (vol) IEICE-118 
Number (no) no.226 
Page pp.11-16 
#Pages IEICE-6 
Date of Issue IEICE-EE-2018-09-26 

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