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| Presentation | 2018-08-07 16:00 [Invited Talk] A Battery Management System for Wireless Sensor Devices Ken-ichi Kawasaki, Jun-ichi Nagata, Hiroyuki Nakamoto (Fujitsu Labs.)  SDM2018-34 ICD2018-21 Link to ES Tech. Rep. Archives: SDM2018-34 ICD2018-21 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | It would be important to observe battery state of charge at each IoT device accurately even with small circuit area and low-power consumption in order to maintain system or service operation stably and continuously while handling huge amount of IoT devices. Measuring consumed coulomb count of device and/or internal impedance of battery accurately is required to observe battery state of charge. In this paper, we introduce an intermittently enabled coulomb counter that can reduce power consumption by 93% compared to conventional coulomb counter even with maintaining measurement accuracy, and measuring internal impedance of battery using pulse shaped input current that can eliminate AC current source and sample-hold circuit, which are conventionally required. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Battery State of Charge / Coulomb Counter / Internal Impedance / Low-Power Consumption / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 118, no. 173, ICD2018-21, pp. 47-52, Aug. 2018. | |
| Paper # | ICD2018-21 | |
| Date of Issue | 2018-07-31 (SDM, ICD) | |
| 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 | SDM2018-34 ICD2018-21 Link to ES Tech. Rep. Archives: SDM2018-34 ICD2018-21 |
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| Conference Information | |
| Committee | SDM ICD ITE-IST |
| Conference Date | 2018-08-07 - 2018-08-09 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido Univ., Graduate School of IST M Bldg., M151 |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Analog, Mixed Analog and Digital, RF, and Sensor Interface, Low Voltage/Low Power Techniques, Novel Devices/Circuits, and the Applications |
| Paper Information | |
| Registration To | ICD |
| Conference Code | 2018-08-SDM-ICD-IST |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Battery Management System for Wireless Sensor Devices |
| Sub Title (in English) | |
| Keyword(1) | Battery State of Charge |
| Keyword(2) | Coulomb Counter |
| Keyword(3) | Internal Impedance |
| Keyword(4) | Low-Power Consumption |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Ken-ichi Kawasaki |
| 1st Author's Affiliation | Fujitsu Laboratories LTD. (Fujitsu Labs.) |
| 2nd Author's Name | Jun-ichi Nagata |
| 2nd Author's Affiliation | Fujitsu Laboratories LTD. (Fujitsu Labs.) |
| 3rd Author's Name | Hiroyuki Nakamoto |
| 3rd Author's Affiliation | Fujitsu Laboratories LTD. (Fujitsu Labs.) |
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| Speaker | Author-1 |
| Date Time | 2018-08-07 16:00:00 |
| Presentation Time | 45 minutes |
| Registration for | ICD |
| Paper # | SDM2018-34, ICD2018-21 |
| Volume (vol) | vol.118 |
| Number (no) | no.172(SDM), no.173(ICD) |
| Page | pp.47-52 |
| #Pages | 6 |
| Date of Issue | 2018-07-31 (SDM, ICD) |
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