Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Design of pillow type contactless recharging device for totally implantable middle ear systems

완전 이식형 인공중이를 위한 베개형 비접촉 충전장치의 설계

  • Lim, Hyung-Gyu (School of Electrical Engineering & Computer Science, Kyungpook National University) ;
  • Kim, Jong-Min (Department of Medical & Biological Engineering, Graduate School, Kyungpook National University) ;
  • Kim, Min-Kyu (Department of Medical & Biological Engineering, Graduate School, Kyungpook National University) ;
  • Yoon, Young-Ho (Advanced Research Center for Recovery of Human Sensibility, Kyungpook National University) ;
  • Park, Il-Yong (Advanced Research Center for Recovery of Human Sensibility, Kyungpook National University) ;
  • Song, Byung-Seop (Department of Rehabilitation Science & Technology, School of Rehabilitation Science, Daegu University) ;
  • Cho, Jin-Ho (School of Electrical Engineering & Computer Science, Kyungpook National University)
  • 임형규 (경북대학교 대학원 전자공학과) ;
  • 김종민 (경북대학교 대학원 의용생체공학과) ;
  • 김민규 (경북대학교 대학원 의용생체공학과) ;
  • 윤영호 (경북대학교 첨단 감각기능 회복장치 연구센터) ;
  • 박일용 (경북대학교 첨단 감각기능 회복장치 연구센터) ;
  • 송병섭 (대구대학교 재활과학대학 재활공학과) ;
  • 조진호 (경북대학교 대학원 전자공학과)
  • Published : 2005.03.30
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Abstract

A contactless recharging device for totally implantable middle ear systems has been designed as a pillow type that the user can recharge the implanted battery with taking a rest. The proposed device uses the electromagnetic coupling between the transmitting coil and the receiving coil. To supply sufficient power for the implanted circuits, each coil uses LC resonance and the implanted device uses voltage doubler. A power MOSFET is used for switching the DC voltage of LC parallel circuit and the switching frequency demands on a programmable frequency generator which is controlled by microcontroller. In order to improve the electromagnetic coupling efficiency at specific positions of coil which may vary with the displacement of head, the optimal location of receiving coil was studied, and the 5 transmitting coils in a pillow for recharging the implant module was designed. From such a recharging experiment, it was found that the proposed device could provide the sufficient operating voltage within the distance of 4 cm between pillow and the implanted device.

Keywords

References

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