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| Presentation | 2021-01-25 17:00 Digitally controlled boundary current mode buck converter Reo Sumita, Terukazu Sato (Oita Univ.)  EE2020-39 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | When the control method to maintain the boundary current mode is applied to the buck converter, the efficiency is expected to be improved switching loss due to zero-current switching. In addition, since the inductor current is controlled, the transfer function is a first-order system, which is expected to improve the controllability. However, capturing the change of the inductor current in digital control requires a very fast AD converter for the switching frequency, which leads to problems such as cost increase. Therefore, in this study, the on-time in the switching cycle is determined by PID control. The off-time is also determined using the fact that twice the load current is the peak value of the inductor current. The control method to maintain this boundary current mode is investigated. In this paper, the proposed method is applied to a buck converter, and the static characteristics, efficiency, controllability and future issues are discussed. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Digital control / Boundary current mode / Buck converter / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 340, EE2020-39, pp. 86-90, Jan. 2021. | |
| Paper # | EE2020-39 | |
| Date of Issue | 2021-01-18 (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 | EE2020-39 |
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| Conference Information | |
| Committee | EE |
| Conference Date | 2021-01-25 - 2021-01-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online (Zoom) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | DC/DC converter, New circuit for power conversion and control, others |
| Paper Information | |
| Registration To | EE |
| Conference Code | 2021-01-EE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Digitally controlled boundary current mode buck converter |
| Sub Title (in English) | |
| Keyword(1) | Digital control |
| Keyword(2) | Boundary current mode |
| Keyword(3) | Buck converter |
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| 1st Author's Name | Reo Sumita |
| 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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| Speaker | Author-1 |
| Date Time | 2021-01-25 17:00:00 |
| Presentation Time | 25 minutes |
| Registration for | EE |
| Paper # | EE2020-39 |
| Volume (vol) | vol.120 |
| Number (no) | no.340 |
| Page | pp.86-90 |
| #Pages | 5 |
| Date of Issue | 2021-01-18 (EE) |
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