This paper proposes a self-start piezoelectric energy harvesting circuit with an undervoltage-lockout (UVLO) converter for a wireless sensor network (WSN). First, a self-start circuit with mini piezoelectric energy harvester (PEH) is designed to supply the power for operation of the oscillator without battery. The experimental results show that a batteryless self-start circuit successfully operates the oscillator with mini-PEH, and self-starting time is 0.45 s. Second, this paper proposes an adjustable UVLO converter that can supply the power even if a power consumption of a wireless sensor node is higher than generated power from PEH. The experimental result shows the adjustable UVLO converter supplies 45 mW for 0.12 s after charging the output power of an impedance matching circuit (1.7 mW) for 10 s. This paper shows that the proposed circuit successfully overcomes challenging issues — self-start and lower power generation — for powering WSN.
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ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 18–20, 2017
Snowbird, Utah, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-5825-7
PROCEEDINGS PAPER
Self-Start Piezoelectric Energy Harvesting Circuit With Adjustable UVLO Converter for Wireless Sensor Network
Hyun Jun Jung,
Hyun Jun Jung
University of Maryland, Baltimore County, Baltimore, MD
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Soobum Lee,
Soobum Lee
University of Maryland, Baltimore County, Baltimore, MD
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Hamid Jabbar,
Hamid Jabbar
Hanyang University, Seoul, Korea
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Se Yeong Jeong,
Se Yeong Jeong
Hanyang University, Seoul, Korea
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Tae Hyun Sung
Tae Hyun Sung
Hanyang University, Seoul, Korea
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Hyun Jun Jung
University of Maryland, Baltimore County, Baltimore, MD
Soobum Lee
University of Maryland, Baltimore County, Baltimore, MD
Hamid Jabbar
Hanyang University, Seoul, Korea
Se Yeong Jeong
Hanyang University, Seoul, Korea
Tae Hyun Sung
Hanyang University, Seoul, Korea
Paper No:
SMASIS2017-3796, V001T07A005; 7 pages
Published Online:
November 9, 2017
Citation
Jung, HJ, Lee, S, Jabbar, H, Jeong, SY, & Sung, TH. "Self-Start Piezoelectric Energy Harvesting Circuit With Adjustable UVLO Converter for Wireless Sensor Network." Proceedings of the ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Bioinspired Smart Materials and Systems; Energy Harvesting; Emerging Technologies. Snowbird, Utah, USA. September 18–20, 2017. V001T07A005. ASME. https://doi.org/10.1115/SMASIS2017-3796
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