A wide range and high accuracy sensor interface with switching regulator for coin-cell powered tiny wireless sensor node

K. Tatehora, Y. Shiiki, S. Nakagawa, Takahisa Tanaka, K. Uchida, H. Ishikuro

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This paper presents a coin-cell powered small size wireless sensor node with a sensor bridge biased by an energy-efficient DC-DC converter. To reduce the switching noise of the DC-DC converter, a Wheatstone bridge with differentially balanced in wide resistance range is used. Circuit parameters, such as bridge resistances and amplifier offset are automatically set to the optimal values in the startup sequence. Proposed sensor interface achieved power reduction by 57.3% and intermittent operation further reduces the power consumption by 78.6% from which uses LDO. The developed tiny wireless sensor node with a nanoscale gas sensor device successfully demonstrated 100ppm hydrogen gas detection.

本文言語English
ホスト出版物のタイトル2020 IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781728133201
出版ステータスPublished - 2020
イベント52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Virtual, Online
継続期間: 2020 10月 102020 10月 21

出版物シリーズ

名前Proceedings - IEEE International Symposium on Circuits and Systems
2020-October
ISSN(印刷版)0271-4310

Conference

Conference52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020
CityVirtual, Online
Period20/10/1020/10/21

ASJC Scopus subject areas

  • 電子工学および電気工学

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