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Title:
ANALOG FRONT-END CIRCUIT FOR BIOELECTRIC SENSOR
Document Type and Number:
WIPO Patent Application WO/2021/120918
Kind Code:
A1
Abstract:
An analog front-end circuit for a bioelectric sensor. The analog front-end circuit includes two feedforward amplifiers (13a, 13b) and respective feedback networks (12a, 12b), an output common-mode voltage detector (23), an error amplifier (22), a leakage current compensator (200) and a resistance voltage divider (R10, R11; R27, R28). Common-mode components of various types of leakage currents can be effectively suppressed.

Inventors:
DENG CHENXI (CN)
Application Number:
PCT/CN2020/127058
Publication Date:
June 24, 2021
Filing Date:
November 06, 2020
Export Citation:
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Assignee:
DENG CHENXI (CN)
International Classes:
H03F1/30; H03F1/32
Foreign References:
CN111682856A2020-09-18
CN110912521A2020-03-24
CN110581691A2019-12-17
US20180035498A12018-02-01
CN106452372A2017-02-22
CN209151107U2019-07-23
CN105932974A2016-09-07
CN110581691A2019-12-17
Attorney, Agent or Firm:
SUNSHINEIP INTELLECTUAL PROPERTY LAW FIRM (CN)
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