IoT 16(7): e3

Research Article

WE-Harvest: A Wearable Piezoelectric-Electromagnetic Energy Harvester

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  • @ARTICLE{10.4108/eai.28-9-2015.2261451,
        author={Mehmet Yuce and Rawnak Hamid and Ali Mohammadi},
        title={WE-Harvest: A Wearable Piezoelectric-Electromagnetic Energy Harvester},
        journal={EAI Endorsed Transactions on Internet of Things},
        volume={2},
        number={7},
        publisher={ACM},
        journal_a={IOT},
        year={2015},
        month={12},
        keywords={piezoelectric energy harvesting, magnetic energy harvesting, wearable energy harvesting, wearable sensors and devices},
        doi={10.4108/eai.28-9-2015.2261451}
    }
    
  • Mehmet Yuce
    Rawnak Hamid
    Ali Mohammadi
    Year: 2015
    WE-Harvest: A Wearable Piezoelectric-Electromagnetic Energy Harvester
    IOT
    EAI
    DOI: 10.4108/eai.28-9-2015.2261451
Mehmet Yuce1,*, Rawnak Hamid1, Ali Mohammadi1
  • 1: Monash University
*Contact email: mehmet.yuce@monash.edu

Abstract

Wearable electronics require a sustainable electrical power supply to operate. Energy harvesting techniques can be used to convert available nonelectrical energy sources into electrical energy. This paper presents WE-Harvest, a new wearable energy harvesting system that combines the piezoelectric and electromagnetic energy harvesters for wearable devices. Regular human body motions, such as moving the arm, provide the input vibrations. A two-stage modified Dickson multiplier is used to step up the output voltage. The experimental results demonstrate that the combined topology enhances the power transfer efficiency. The dependence of energy harvester output on the load and input frequency has also been investigated.