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| Presentation | 2021-01-29 13:40 Reducing chip area and improving efficiency of a charge pump by switching the input voltage source and controlling the number of stages Shunsuke Hironaga, Takahide Sato, Satomi Ogawa (Yamanashi Univ)  CAS2020-64 ICTSSL2020-49 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | A step-up/step-down power supply circuit with a wide input/output voltage range, which has only one switch in its current path, is developed. In this paper, we propose a novel control of a charge pump which is used for an auxiliary power supply of a control circuit for the power supply circuit. The number of stages of the charge pump is reduced by switching the input voltage source when the power supply circuit starts up. In addition, the efficiency of the charge pump is improved by varying the number of stages depending on the input voltage. The efficiency of the charge pump has been confirmed by a simulation. The simulation results show that the efficiency is improved by up to 5.3 %. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Power supply circuit / Charge Pump / Improving efficiency / Reducing chip area / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 346, CAS2020-64, pp. 130-135, Jan. 2021. | |
| Paper # | CAS2020-64 | |
| Date of Issue | 2021-01-21 (CAS, ICTSSL) | |
| 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 | CAS2020-64 ICTSSL2020-49 |
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| Conference Information | |
| Committee | CAS ICTSSL |
| Conference Date | 2021-01-28 - 2021-01-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Students session, General session |
| Paper Information | |
| Registration To | CAS |
| Conference Code | 2021-01-CAS-ICTSSL |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Reducing chip area and improving efficiency of a charge pump by switching the input voltage source and controlling the number of stages |
| Sub Title (in English) | |
| Keyword(1) | Power supply circuit |
| Keyword(2) | Charge Pump |
| Keyword(3) | Improving efficiency |
| Keyword(4) | Reducing chip area |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Shunsuke Hironaga |
| 1st Author's Affiliation | University of Yamanashi (Yamanashi Univ) |
| 2nd Author's Name | Takahide Sato |
| 2nd Author's Affiliation | University of Yamanashi (Yamanashi Univ) |
| 3rd Author's Name | Satomi Ogawa |
| 3rd Author's Affiliation | University of Yamanashi (Yamanashi Univ) |
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| Speaker | Author-1 |
| Date Time | 2021-01-29 13:40:00 |
| Presentation Time | 25 minutes |
| Registration for | CAS |
| Paper # | CAS2020-64, ICTSSL2020-49 |
| Volume (vol) | vol.120 |
| Number (no) | no.346(CAS), no.347(ICTSSL) |
| Page | pp.130-135 |
| #Pages | 6 |
| Date of Issue | 2021-01-21 (CAS, ICTSSL) |
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