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1. 发明授权

KR101360648B1 제2세대 전류 컨베이어를 이용한 계측 증폭기 有权
标题翻译：使用第二代电流输入器的仪表放大器
公开(公告)号：KR101360648B1
公开(公告)日：2014-02-10
申请号：KR1020120124645
申请日：2012-11-06
申请人： 청주대학교 산학협력단
发明人： 차형우 , 이상용 , 임화성 , 정태윤
IPC分类号： H03F3/68 , H03F3/45 , G01R35/04
CPC分类号： H03F3/387 , H03F3/4508 , H03F3/45183
摘要： The present invention relates to an instrumentation amplifier applicable to an electronic instrumentation system, and more specifically an instrumentation amplifier using a second generation current conveyer, which does not need impedance matching and may easily control an offset voltage. The instrumentation amplifier includes a plurality of second generation current conveyers with current flowing and voltage flowing functions, a first resistor for connecting first input terminals (X terminals) of the current conveyers, and an amplification device and a gain adjustment device electrically connected to output terminals of the second generation current conveyers to generate an output voltage proportional to a difference between two input voltages each inputted in second input terminals (Y terminals) of the second generation current conveyers and to adjust a gain of the output voltage.
摘要翻译：本发明涉及一种适用于电子仪器系统的仪表放大器，更具体地说，涉及一种不需要阻抗匹配并可容易地控制偏移电压的第二代电流传送器的仪表放大器。仪表放大器包括具有电流和电压流动功能的多个第二代电流输送器，用于连接电流输送机的第一输入端（X端子）的第一电阻器和电连接到输出端子的放大装置和增益调节装置的第二代电流输送器，以产生与在第二代电流输送器的第二输入端（Y端子）中输入的两个输入电压之间的差成比例的输出电压并调节输出电压的增益。

2. 发明授权

KR101349372B1 완전-차동 선형 OTA를 사용한 계측 증폭기 有权
标题翻译：仪器放大器使用全差分线性OTA
公开(公告)号：KR101349372B1
公开(公告)日：2014-01-14
申请号：KR1020120124544
申请日：2012-11-06
申请人： 청주대학교 산학협력단
发明人： 차형우 , 정태윤 , 임화성 , 이상용 , 이재우 , 김경수
IPC分类号： H03F3/68 , H03F3/45 , G01R35/04
CPC分类号： H03F3/387 , H03F3/4508 , H03F3/45183
摘要： The present invention relates to an instrumentation amplifier using a fully-differential linear operational transconductance amplifier (OTA), which comprises: an OTA outputting a first output current and a second output current with a first voltage and a second voltage as inputs an operational amplifier having a negative terminal connected to a first current output end outputting the first output current and a positive terminal connected to a second current output end outputting the second output current; a first resistor having one end connected between the second current output end and the positive terminal of the operational amplifier and the other end being grounded; and a second resistor having one end connected between the first current output end and the negative terminal of the operational amplifier and the other end connected to an output end of the operational amplifier. According to the present invention, the instrumentation amplifier has a simple circuit configuration, does not need matching of the resistors, and can adjust offsets by controlling gains with two resistors.
摘要翻译：本发明涉及使用全差分线性运算跨导放大器（OTA）的仪表放大器，其包括：输出具有第一电压和第二电压的第一输出电流和第二输出电流的OTA作为输入，该运算放大器具有连接到输出第一输出电流的第一电流输出端的负极端子和连接到输出第二输出电流的第二电流输出端的正极端子; 第一电阻器，其一端连接在第二电流输出端和运算放大器的正极端子之间，另一端接地; 以及第二电阻器，其一端连接在运算放大器的第一电流输出端和负端子之间，另一端连接到运算放大器的输出端。根据本发明，仪表放大器具有简单的电路结构，不需要电阻器的匹配，并且可以通过利用两个电阻器控制增益来调整偏移。

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