CHANG, CHENG HUNG,张正宏,張正宏,FANG, KUAN JEN,方冠仁,方冠仁,HUANG, CHUN HSIANG,黄俊翔,黃俊翔,LIU, CHUEH SHAN,刘珏珊,劉玨珊
申请号：
TW100149125
公开号：
TW201326830A
申请日:
2011.12.28
申请国别(地区):
TW
年份:
2013
代理人:
摘要：
A bio-potential sensing circuit, comprising: a first electrode, receiving a first physiological signal and a first noise a first capacitor, with one terminal electrically connecting to the first electrode a first control unit, with one terminal electrically connecting to the other terminal of the first capacitor, and the other terminal electrically connecting to a voltage reference node a second electrode, receiving a second physiological signal and a second noise a second capacitor, with one terminal electrically connecting to the second electrode a second control unit, with one terminal electrically connecting to the other terminal of the second capacitor, and the other terminal electrically connecting to the voltage reference node an input matching circuit, electrically coupling to the other terminal of the first electrode and the other terminal of the second electrode, and generating a first control signal and/or a second control signal according to the first noise and the second noise, controlling the first control unit and the second control unit, to equalize amplitudes of the first noise and the second noise.一種生物電訊號感測電路,包括第一電極,接收第一生理特徵以及第一雜訊;第一電容,一端與第一電極連接;第一控制單元,一端與第一電容之另一端連接,另一端電性連接至一參考電位節點;第二電極,接收第二生理特徵以及第二雜訊;第二電容,一端與一第二電極連接;第二控制單元,一端與第二電容之另一端連接;輸入平衡單元,分別與第一電容之另一端以及第二電容之另一端耦合,並根據第一雜訊及第二雜訊,產生第一控制訊號及/或第二控制訊號,分別控制第一控制單元及/或第二控制單元,使第一雜訊及第二雜訊之振幅相等。10...輸入平衡單元100...生物電訊號感測電路a1...第一輸入端a2...第二輸入端AMP1、AMP2...電壓隨耦器C1...第一電容C2...第二電容D1...二極體D2...二極體DRL...右腳反饋電路f1、f2...輸出端GND...參考電位節點L1、L2...外環M1...第一控制單元M2...第二控制單元n1、n1’、n2、n2’...節點OUT...輸出端P1-P3...電極S1、S1’...第一生物電訊號S2、S2’...第二生物電訊號
