Journal of Magnetics

  • 제17권1호
  • /
  • Pages.42-45
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  • 2012
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  • 1226-1750(pISSN)
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  • 2233-6656(eISSN)
한국자기학회 (The Korean Magnetics Society)
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Design of Alternating Magnetic Field Stimulator Using Duty Factor

  • Jang, Tae-Sun (Department of Oriental Biomedical Engineering, Sangji University) ;
  • Lee, Jin-Yong (Department of Oriental Biomedical Engineering, Sangji University) ;
  • Lee, Hyun-Sook (Department of Oriental Biomedical Engineering, Sangji University) ;
  • Kim, Sun-Wook (Department of Oriental Biomedical Engineering, Sangji University) ;
  • Hwang, Do-Guwn (Department of Oriental Biomedical Engineering, Sangji University)
  • 투고 : 2011.09.19
  • 심사 : 2012.02.27
  • 발행 : 2012.03.31
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초록

We have developed an alternating magnetic field stimulation system consisting of a switched-mode power supply and a digital control circuit which modulates a duty ratio to maintain a magnetic field intensity of a few mT even while the frequency increases up to 4 kHz with a controllable coil temperature below $30^{\circ}C$ in air. This duty ratio modulation and water circulation are advantageous for cell culture under ac-magnetic field stimulation by preventing the incubator from exceeding a cell-viable temperature of $37^{\circ}C$. Although the temperature of the coil when subjected to a sinusoidal voltage rapidly increased, that of our system modulated by the duty factor did not change. This is a potentially valuable method to investigate the effects of intermediate frequency magnetic field stimulation on biological entities such as cells, tissues and organs.

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참고문헌

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피인용 문헌

  1. Dependence of Alternating Magnetic Field Intensity on Proliferation Rate of Human Breast Cancer Cell vol.20, pp.3, 2015, https://doi.org/10.4283/JMAG.2015.20.3.290