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Paper Abstract and Keywords
Presentation 2014-01-24 13:25
Efficiency Improvement of Switching Power Supply with Transient Current Circuit Using Digital Control
Haruomi Takashita, Masahito Shoyama (Kyushu Univ), Yu Yonezawa, Yoshiyasu Nakashima (Fujitsu Lab) EE2013-46
Abstract (in Japanese) (See Japanese page) 
(in English) The more Miniaturization of switching power supplies is required with the background of the annual miniaturization of electric equipment. As the miniaturization of power supplies, the switching frequency become higher. It increases the switching-loss. This loss cause the lower efficiency. There are the technics called soft switching for reduce the loss and many circuit is suggested. Transient current circuit is one of the circuits and it reduce the switching-loss by zero current switching when this circuit is attached with buck converter so this circuit can be operated in high efficiency with high frequency. We have known that the problems of the circuit that the decrease of efficiency at light load and the complexity of the control. In this research, digital control is used in the circuit and this made the control easier. When the circuit is operated efficiently depended on the situation.
Keyword (in Japanese) (See Japanese page) 
(in English) Soft switching / Zero current switching / Transient current Power supply / Digital control / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 392, EE2013-46, pp. 91-96, Jan. 2014.
Paper # EE2013-46 
Date of Issue 2014-01-16 (EE) 
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)
Download PDF EE2013-46

Conference Information
Committee EE  
Conference Date 2014-01-23 - 2014-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English) MIYAZAKI KANKO HOTEL 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EE 
Conference Code 2014-01-EE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Efficiency Improvement of Switching Power Supply with Transient Current Circuit Using Digital Control 
Sub Title (in English)  
Keyword(1) Soft switching  
Keyword(2) Zero current switching  
Keyword(3) Transient current Power supply  
Keyword(4) Digital control  
Keyword(5)  
Keyword(6)  
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1st Author's Name Haruomi Takashita  
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 Yu Yonezawa  
3rd Author's Affiliation Fujitsu Laboratories LTD (Fujitsu Lab)
4th Author's Name Yoshiyasu Nakashima  
4th Author's Affiliation Fujitsu Laboratories LTD (Fujitsu Lab)
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Speaker Author-1 
Date Time 2014-01-24 13:25:00 
Presentation Time 25 minutes 
Registration for EE 
Paper # EE2013-46 
Volume (vol) vol.113 
Number (no) no.392 
Page pp.91-96 
#Pages 6 
Date of Issue 2014-01-16 (EE) 

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