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128 채널 심장 전기도 전치 증폭기의 설계

Other Titles
 The Design of 128 Channels Cardiac-Activation Pre-Amplifier 
Authors
 유선국  ;  장병철  ;  정동일  ;  한영오 
Citation
 전기학회논문지 D, Vol.50D(11) : 550-556, 2001 
Journal Title
 전기학회논문지 D 
ISSN
 1975-8359 
Issue Date
2001
Keywords
computerized cardiac system ; multi-channel pre-amplifier
Abstract
The computerized cardiac analysis system, which acquires and analyzes the electrical activation signal propagating along the surface of the heart, is indispensible equipment for the open heart surgery and electrical cardiac study. In this paper, the design requirement and the electrical circuit analysis are performed to construct the multi-channel cardiac activation pre-amplifier necessary for a signal conditioning circuit. The general 64 channel configuration is expanded into 128 channels to enhance the spatial resolution on the mapped surface of the heart. The 128 channels pre-amplifier consists of input circuit, differential amplifier, right leg driven circuit and isolation part. It has distinct features; high voltage protection, leakage current limitation, isolation and the maximization of common mode rejection ratio with respect to the half-cell potential difference due to different electrode materials. The final pre-amplifier circuit is assembled with 8 boards, each of which composing of 16 channels.
Files in This Item:
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
Yonsei Authors
Yoo, Sun Kook(유선국) ORCID logo https://orcid.org/0000-0002-6032-4686
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/142003
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