Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Fabrication of Vibration-Driven Electromagnetic Energy Harvester with Spring-Less and Its Characteristics

스프링이 없는 진동형 전자기식 에너지 하베스터의 제작과 그 특성

  • Received : 2011.03.15
  • Accepted : 2011.06.22
  • Published : 2011.07.31
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Abstract

This paper describes the fabrication and characteristics of vibration-driven electromagnetic energy harvester without spring to use at low frequency like a human body motion. The implemented energy harvester consists of NdFeB magnets, copper coil. The optimization of induced voltage was done by the various widths of coil, number of the turns, size of fixed and moving magnets and thicknesses of the cylinder. The fabricated energy harvester is capable of producing up to 15.0 $V_{pp}$ for basic model and 28.80 $V_{pp}$ for improved model at 5.0 Hz resonance frequency and 0.75 g acceleration level. The basic model and improved model are provided a maximum power of 6.375 mWand 25.831 mW at 1 KHz of load resistance in rectifier circuit.

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References

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Cited by

  1. Development of Hybrid Energy Harvesting Block and Evaluation on Power Generation Performance vol.5, pp.2, 2014, https://doi.org/10.5804/LHIJ.2014.5.2.099