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公开(公告)号:KR101190811B1
公开(公告)日:2012-10-15
申请号:KR1020110049606
申请日:2011-05-25
Applicant: 한국과학기술연구원
CPC classification number: H03H7/12 , H02M1/42 , H03F3/45 , H03H11/0427 , H03H11/12
Abstract: PURPOSE: A tunable band pass filter for processing a multi-bio signal is provided to reduce an occupied area using one load capacitor instead of an array of a load capacitor occupying a large area. CONSTITUTION: A tunable band pass filter for processing a multi-bio signal comprises an amplifier(100) and a variable constant-voltage rectifier(200) for controlling a bandwidth. The band pass filter comprises first and second feedback loops(300a,300b), first and second input capacitors(Cin1,Cin2), and first and second load capacitors(CL1,CL2). The amplifier controls output resistance. The amplifier comprises a differential amplification part generating an output current and a bias part generating a bias current. [Reference numerals] (200) Variable constant-voltage rectifier
Abstract translation: 目的:提供一种用于处理多生物信号的可调带通滤波器,以便使用一个负载电容器来代替占用大面积的负载电容器的阵列来减少占用面积。 构成:用于处理多生物信号的可调带通滤波器包括用于控制带宽的放大器(100)和可变恒压整流器(200)。 带通滤波器包括第一和第二反馈回路(300a,300b),第一和第二输入电容器(Cin1,Cin2)以及第一和第二负载电容器(CL1,CL2)。 放大器控制输出电阻。 放大器包括产生输出电流的差分放大部分和产生偏置电流的偏置部分。 (附图标记)(200)可变恒压整流器