Event Driven Time-logging System based on Continuous Operation of Real Time Clock towards Perpetual Electronics

S. Yamada, H. Toshiyoshi

研究成果: Conference article査読

1 被引用数 (Scopus)

抄録

This paper presents a novel time logging system using a real time clock (RTC) powered by a vibrational energy harvester to record the time of events when piezoelectric PVDF film as an event-driven sensor is activated. The power-management circuit normally remains in the sleep mode to cut power supply to the micro-processor and the ferroelectric random access memory. On the other hand, the RTC alone is powered by a battery to keep the time by seamless operation, which lowers the standby power consumption as small as 231 nW. As the PVDF film generates power, the developed power management circuit can supply load current upwards of 8 mA at 3.3 Vdc for external circuit to record the time of events with the energy consumption of 467 μJ.

本文言語English
論文番号012045
ジャーナルJournal of Physics: Conference Series
1407
1
DOI
出版ステータスPublished - 2019 12月 4
外部発表はい
イベント18th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2018 - Daytona Beach, United States
継続期間: 2018 12月 42018 12月 7

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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