| 高阶开关电容滤波器的设计和仿真 |
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| 引用本文： | 周蓉,马胜前. 高阶开关电容滤波器的设计和仿真[J]. 电子测量技术, 2010, 33(2): 22-25 |
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| 作者姓名： | 周蓉 马胜前 |
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| 作者单位： | 1. 甘肃省化工高级技工学校,兰州,730046
2. 西北师范大学,兰州,730070 |
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| 摘 要： | 介绍了高阶开关电容滤波器以及二阶滤波器的排序和动态指定的基本原理和一般方法，根据预设的目标参数，借助Filtercad软件，对巴特沃兹型、切比雪夫型、以及椭圆形滤波器进行了仿真比较，得出椭圆形滤波器的频率响应比较理想，然后以6阶低通椭圆形开关电容滤波器为例，根据其传递函数，进行二阶滤波器的排序和动态指定，完成了电路的设计。该方法也适合高通、带通、带阻滤波器的设计。
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| 关 键 词： | 开关电容 椭圆型滤波器 传递函数 |
Design and simulation for high-order switched capacitor filter |
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| Zhou Rong,Ma Shengqian. Design and simulation for high-order switched capacitor filter[J]. Electronic Measurement Technology, 2010, 33(2): 22-25 |
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| Authors: | Zhou Rong Ma Shengqian |
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| Affiliation: | 1.Chemical advanced technical schools of Gansu Province;Lanzhou 730046;2.Northwest Normal University;Lanzhou 730070 |
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| Abstract: | This paper introduces high-order switched-capacitor filter,as well as sorting and dynamic second-order filter specified in the basic principles and general approach,according to pre-set target parameters,with the help of the Filtercad software,Butterworth type,Chebyshev type,as well as the elliptic filter is simulated comparison,as a result,elliptical filter's frequency response is ideal,and then take the six-order low-pass Elliptic switched-capacitor filters as a example,In accordance with its transfer fun... |
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| Keywords: | switched-capacitor oval-type filter transfer function. |
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