New & Renewable Energy (신재생에너지)

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
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A study of the micro power generators with a coil and a magnet using vibration of low frequencies

저 진동수에서 코일과 자석을 이용한 초소형 발전기 연구

  • 이동호 (국민대학교 물리학과 한국과학기술연구원 시스템 연구부) ;
  • 김성일 (한국과학기술연구원 시스템 연구부) ;
  • 이윤표 (한국과학기술연구원 시스템 연구부) ;
  • 박민철 (한국과학기술연구원 시스템 연구부)
  • Published : 2006.09.25
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Abstract

We have fabricated a micro power generator which changes vibrational energy into useful energy. With vibrating a magnet on the surface of a winding coil, the micro power generator produce alternating voltage. We have changed the vibrational frequency from 0.5Hz to 10Hz. AC voltage of $20{\sim}25mV$ was generated at the frequency of 1Hz. When the vibration was 3Hz, AC voltage of 80mV was obtained. We have rectified and stepped up the input voltage using a quadrupler circuit. The voltage was stepped up to 130mV.

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