스프링이 없는 진동형 전자기식 에너지 하베스터의 제작과 그 특성
Fabrication of Vibration-Driven Electromagnetic Energy Harvester with Spring-Less and Its Characteristics
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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 Vpp for basic model and 28.80 Vpp 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 mW and 25.831 mW at 1 KHz of load resistance in rectifier circuit.
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 Vpp for basic model and 28.80 Vpp 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 mW and 25.831 mW at 1 KHz of load resistance in rectifier circuit.
참고문헌 (7)
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