저잡음 뇌파 전치 증폭기의 개발

The Development of Low-noise EEG Preamplifier

  • 유선국 (연세대학교 의용공학 교실) ;
  • 김남현 (연세대학교 의용공학 교실) ;
  • 김선호 (연세대학교 신경외과학 교실) ;
  • 송재성 (연세대학교 의용공학 교실) ;
  • 안창범 (광운대학교 전기공학과)
  • Yoo, S.K. (Dept. of Medical Eng., College of Medicine, Yonsei Univ.) ;
  • Kim, N.H. (Dept. of Medical Eng., College of Medicine, Yonsei Univ.) ;
  • Kim, S.H. (Dept. of Neurosurgery, College of Medicine, Yonsei Univ.) ;
  • Song, J.S. (Dept. of Medical Eng., College of Medicine, Yonsei Univ.) ;
  • Ahn, C.B. (Dept. of Electrical Eng., Kwangwoon Univ)
  • 발행 : 1995.05.12

초록

A low-noise pre-amplifier is developed for use in Topographic Brain Mapping system. It consists of signal generator, signal amplifier with a impedance converter, shield driver, body driver, differential amplifier, and isolation amplifier. Pre-amplifier circuit is designed with the concept of isolation and active body and shield driver. This amplifier shows the good noise behavior, high CMRR, high input impedance, low leakage current and high IMRR.

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