A Circuit Model for Energy Harvesting from Fringing Electric Fields for Mobile Wearable Device Applications

Mohammad Rezwan Khan, Mohammad Ariful Islam, Mohammad Masum Rana, Tohfa Haque and Shahal Ibn Islam Joy
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Mohammad Rezwan Khan: Department of EEE, United International University, Dhaka 1212, Bangladesh
Mohammad Ariful Islam: Department of EEE, United International University, Dhaka 1212, Bangladesh
Mohammad Masum Rana: Department of EEE, United International University, Dhaka 1212, Bangladesh
Tohfa Haque: Department of EEE, United International University, Dhaka 1212, Bangladesh
Shahal Ibn Islam Joy: Department of EEE, United International University, Dhaka 1212, Bangladesh
Authors registered in the RePEc Author Service: Mohammad Ariful Islam Arif ()

Energies, 2021, vol. 14, issue 21, 1-14

Abstract: Harvesting energy from the fringing electric field of power lines is a topic of recent interest. So far, most of the reported energy harvesting processes used a fixed ground connection that makes the harvesting process immobile. This paper presents a new idea to avoid the fixed ground connection and make the extraction process mobile, which can lead to charging of wearable and mobile devices, reducing the frequency of battery charging and enhancing the longevity of the batteries. A comprehensive circuit model for the energy extraction system is still absent, and this research proposes a circuit model that forms a basis for the circuit design and prediction of the energy extraction efficacy. The circuit model provides the analytical basis to estimate charging time, optimum operating voltage and optimum power for such circuits. Experimental results are also presented to justify the circuit model. Although the actual amount of power extracted was very small, further research is needed to enhance the energy extraction efficacy.

Keywords: energy harvesting; fringing electric field; capacitive coupling; mobile wearable; devices; IoT based applications (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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