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Efficient self-powered energy harvesting circuit designs

Research Project

Project/Area Number 18K11227
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 60040:Computer system-related
Research InstitutionWaseda University

Principal Investigator

SHI Youhua  早稲田大学, 理工学術院, 教授 (70409655)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsEnergy Harvesting / Energy harvesting / インターフェース回路 / 自己駆動型スイッチング制御回路 / 広帯域化 / 振動発電 / 高効率インターフェース回路 / 広帯域 / 低周波 / 自電源回路 / エネルギーハーベスティング回路 / 圧電素子 / 自立電源
Outline of Final Research Achievements

Research and development on efficient energy harvesting (EH) interface circuit designs have been conducted for piezoelectric energy harvesting from our human body. The main achievements can be summarized as follows: (1) Efficient EH interface circuit designs have been proposed by implementing a multiple bias-flip-based E-SECE circuit and scalable EH circuit optimization for multi-source piezoelectric energy harvesting, (2) A wideband design technique with introduced switching delay is proposed for power and frequency bandwidth improvement in piezoelectric energy harvesting, and (3) A wearable device capable of battery-free wireless transmission is successfully realized by using the proposed Piezo-based EH interface circuit.

Academic Significance and Societal Importance of the Research Achievements

本研究は、人体の振動を用いた電力効率の良いEH回路を実現した。人体の動きから生成された微弱なエネルギーを効率よくハーベスティングすることができれば、どこでもいつでも自由にエネルギーを得ることが可能になる。本研究の成果により、将来的なバッテリーフリーウェアラブルデバイスの実現は可能と考えられる。さらに、EH技術を実現可能な応用を見据えながら確立し、バッテリーフリーIoTが実現されれば、様々な社会問題の解決につながると期待される。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (3 results)

All 2019 2018 Other

All Presentation (2 results) (of which Int'l Joint Research: 1 results) Remarks (1 results)

  • [Presentation] Static Error Analysis and Optimization of Faithfully Truncated Adders for Area-Power Efficient FIR Designs2019

    • Author(s)
      J. Ye, N. Togawa, M. Yanagisawa and Y. Shi
    • Organizer
      IEEE International Symposium on Circuits and Systems (ISCAS)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 低周波圧電エネルギーハーベスティングにおけるMOSs SP-SSHI手法2018

    • Author(s)
      杉山貴紀, 戸川望, 柳澤政生, 史又華
    • Organizer
      電子情報通信学会 第31回回路とシステムワークショップ
    • Related Report
      2018 Research-status Report
  • [Remarks] エネルギーハーベスティング インターフェイス回路設計

    • URL

      https://ambientronics.com/

    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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