| 一种新的OTA—电容滤波器信号流图结构 |
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| 引用本文： | 何怡刚,吴杰.一种新的OTA—电容滤波器信号流图结构[J].科技通报,1998,14(3):153-157. |
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| 作者姓名： | 何怡刚 吴杰 |
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| 作者单位： | 湖南大学电气系!长沙410082 |
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| 基金项目： | 国家自然科学基金,机械部教育司和湖南大学科学基金 |
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| 摘 要： | 基于传输函数的信号流图模拟，一种新的具有最少元件 Ｏ Ｔ Ａ电容滤波器结构被提出⒚任何种类任何阶电压传输函数均可由该结构实现，设计公式简单⒚文中设计了各种二阶滤波器，分析了这种实现的电压传输函数的灵敏度，给出了三阶椭圆低通滤波器设计实例及计算机仿真结果⒚
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| 关 键 词： | 有源滤波器 OTA-C滤波器 高频连续时间滤波器 信号流图 |
Novel SFG Structure for OTA Capacitor Filters |
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| He Yigang,Wu Jie,Cai Guochang.Novel SFG Structure for OTA Capacitor Filters[J].Bulletin of Science and Technology,1998,14(3):153-157. |
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| Authors: | He Yigang Wu Jie Cai Guochang |
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| Institution: | He Yigang Wu Jie Cai Guochang Department of Electrical Engineering,Hunan University,Changsha 410082 |
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| Abstract: | Using signal flow graph (SFG) for the simulation of transfer function,a universal minimum compoent operational transconductance amplifier (OTA) capacitor filter structure is presented.The proposed architecture can be used to realise arbitrary order and arbitrary types of voltage transfer function with simple design formulae.The design of various second order filters is particularly investigated.The sensitivity analysis of various realisations is included.Design and simulation results of a third order elliptic filter are also presented. |
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| Keywords: | Active filter OTA C filter High frequency continuous time filter Signal flow graph |
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