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| Presentation | 2009-09-17 14:15 FPGA implementation and accuracy evaluation of a power-supply voltage control circuit Masato Soejima, Junya Sakemi, Yuichiro Shibata, Fujio Kurokawa, Tsuyoshi Hamada, Tomonari Masada, Kiyoshi Oguri (Nagasaki Univ)  RECONF2009-22 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Demands for more steady and more efficient direct voltage power supplies have been increasing in the context of energy conservation measures. Digital DC-DC converters are especially gathering attention because they have a high degree of reliability and flexibility. This paper addresses an FPGA-based control mechanism for a DC-DC converter. This approach enables programmability for a wide range of control algorithms while higher operational speed is anticipated. In this paper, we discuss required arithmetic precision and trade-off relationship between control accuracy and hardware costs through prototype implementation of an FPGA-based DC-DC converter. Evaluation of the prototype system reveals that fixed point arithmetic with 10-bit fraction part is enough in terms of dynamic characteristics. Design of a counter module which uses multiple phase-shifted clock signals to increase the PWM resolution while keeping the system clock frequency low is also discussed. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | FPGA / DC-DC converter / Switching power supply / Digital Control / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 198, RECONF2009-22, pp. 19-24, Sept. 2009. | |
| Paper # | RECONF2009-22 | |
| Date of Issue | 2009-09-10 (RECONF) | |
| 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 | RECONF2009-22 |
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| Conference Information | |
| Committee | RECONF |
| Conference Date | 2009-09-17 - 2009-09-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Utsunomiya Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Reconfigurable Sysytems, etc. |
| Paper Information | |
| Registration To | RECONF |
| Conference Code | 2009-09-RECONF |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | FPGA implementation and accuracy evaluation of a power-supply voltage control circuit |
| Sub Title (in English) | |
| Keyword(1) | FPGA |
| Keyword(2) | DC-DC converter |
| Keyword(3) | Switching power supply |
| Keyword(4) | Digital Control |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masato Soejima |
| 1st Author's Affiliation | Nagasaki University (Nagasaki Univ) |
| 2nd Author's Name | Junya Sakemi |
| 2nd Author's Affiliation | Nagasaki University (Nagasaki Univ) |
| 3rd Author's Name | Yuichiro Shibata |
| 3rd Author's Affiliation | Nagasaki University (Nagasaki Univ) |
| 4th Author's Name | Fujio Kurokawa |
| 4th Author's Affiliation | Nagasaki University (Nagasaki Univ) |
| 5th Author's Name | Tsuyoshi Hamada |
| 5th Author's Affiliation | Nagasaki University (Nagasaki Univ) |
| 6th Author's Name | Tomonari Masada |
| 6th Author's Affiliation | Nagasaki University (Nagasaki Univ) |
| 7th Author's Name | Kiyoshi Oguri |
| 7th Author's Affiliation | Nagasaki University (Nagasaki Univ) |
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| Speaker | Author-1 |
| Date Time | 2009-09-17 14:15:00 |
| Presentation Time | 25 minutes |
| Registration for | RECONF |
| Paper # | RECONF2009-22 |
| Volume (vol) | vol.109 |
| Number (no) | no.198 |
| Page | pp.19-24 |
| #Pages | 6 |
| Date of Issue | 2009-09-10 (RECONF) |
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