Low-Level Kinetic-Energy-Powered Temperature Sensing System

Authors

• James M. Mangum, University of Arkansas, FayettevilleFollow
• Syed M. Rahman, University of Arkansas, FayettevilleFollow
• Tamzeed B. Amin, University of Arkansas, FayettevilleFollow
• Md R. Kabir, University of Arkansas, FayettevilleFollow
• Hung Do, The University Of Michigan
• Gordon Carichner, The University Of Michigan
• David Blaauw, The University Of Michigan
• Paul M. Thibado, University of Arkansas, FayettevilleFollow

Document Type

Article

Publication Date

2-13-2025

Keywords

energy harvesting, low power, power systems, rechargeable battery, variable capacitor

Abstract

Powering modern nanowatt sensors from omnipresent low-level kinetic energy: This study investigates the power levels produced by a varying-capacitance kinetic energy harvesting system. A model system consisting of a uniformly driven rotating capacitor was built to develop an accurate output power performance model. We found a quantitative linear relationship between the rectified output current and the input applied bias voltage, driving frequency, and capacitance variation. We also demonstrate that our variable capacitor system is equivalent to a fixed capacitor driven with an alternating current power source. Both the fixed-capacitance and varying-capacitance energy harvesting systems recharge a three-volt battery, which in turn powers a custom ultralow-power-consuming temperature sensor system.

Comments

Web of Science

MDPI

Citation

Ashaduzzaman; Mangum, J.M.; Rahman, S.M.; Amin, T.B.; Kabir, M.R.; Do, H.; Carichner, G.; Blaauw, D.; Thibado, P.M. Low-Level Kinetic-Energy-Powered Temperature Sensing System. J. Low Power Electron. Appl. 2025, 15, 11. https://doi.org/10.3390/jlpea15010011

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.