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Paper Abstract and Keywords
Presentation 2019-05-16 09:30
Digital Control of LLC Converter -- Consideration of Frequency Resolution and AD Conversion Resolution --
Hironori Takemoto, Terukazu Sato (Oita Univ.) EE2019-1
Abstract (in Japanese) (See Japanese page) 
(in English) In this research, the sufficient resolution of frequency and AD conversion of the micro control unit that is used in the digitally controlled LLC converter is discussed, and furthermore the appropriate value of the cutoff frequency is verified in the RC filter of the feedback circuits. Experiments were conducted for the 48V to 24V(5A) prototype converter. As a result, it is found that the frequency resolution of the MCU needs more than 2.14ns and AD conversion resolution needs more than 6.6bit. Moreover it is found that the cutoff frequency needs less than about 1/10 of the switching frequency.
Keyword (in Japanese) (See Japanese page) 
(in English) LLC converter / digital control / MCU / frequency resolution / AD conversion / cutoff frequency / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 32, EE2019-1, pp. 1-5, May 2019.
Paper # EE2019-1 
Date of Issue 2019-05-09 (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 EE2019-1

Conference Information
Committee EE IEE-HCA  
Conference Date 2019-05-16 - 2019-05-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
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 2019-05-EE-HCA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Digital Control of LLC Converter 
Sub Title (in English) Consideration of Frequency Resolution and AD Conversion Resolution 
Keyword(1) LLC converter  
Keyword(2) digital control  
Keyword(3) MCU  
Keyword(4) frequency resolution  
Keyword(5) AD conversion  
Keyword(6) cutoff frequency  
1st Author's Name Hironori Takemoto  
1st Author's Affiliation Oita University (Oita Univ.)
2nd Author's Name Terukazu Sato  
2nd Author's Affiliation Oita University (Oita Univ.)
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Date Time 2019-05-16 09:30:00 
Presentation Time 30 
Registration for EE 
Paper # IEICE-EE2019-1 
Volume (vol) IEICE-119 
Number (no) no.32 
Page pp.1-5 
#Pages IEICE-5 
Date of Issue IEICE-EE-2019-05-09 

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