| 用信号流图和通用积分器设计开关电容滤波器 |
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| 引用本文： | 程代伟,范天颖.用信号流图和通用积分器设计开关电容滤波器[J].北京航空航天大学学报,1999,25(5):573-576. |
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| 作者姓名： | 程代伟 范天颖 |
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| 作者单位： | 北京航空航天大学 机械工程及自动化学院 |
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| 摘 要： | 阐明了用信号流图和开关电容通用积分器设计开关电容低通滤波器的方法.本设计方法简明直观,物理概念清楚,便于掌握,容易推广到其它类型(如高通、带通等)开关电容滤波器的设计.文中通过一个五阶梯形开关电容滤波器的设计实例加以说明,并采用通用电路分析程序PSpice5.0来验证设计,结果表明文中提出的方法是一种设计开关电容滤波器的有效方法.
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| 关 键 词： | 信号流图 积分器 有源滤波器 开关电容通用积分器 开关电容滤波器 |
| 收稿时间： | 1998-04-03 |
| 修稿时间： | : 1998-04-03 |
Design of Switched-Capacitor Filters Using Signal-Flow Graphs and General Integrator |
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| Cheng Daiwei,Fan Tianying.Design of Switched-Capacitor Filters Using Signal-Flow Graphs and General Integrator[J].Journal of Beijing University of Aeronautics and Astronautics,1999,25(5):573-576. |
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| Authors: | Cheng Daiwei Fan Tianying |
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| Institution: | Beijing University of Aeronautics and Astronautics,School of Mechanical Engineering and Automation |
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| Abstract: | A new design method of switched capacitor low pass filter using signal flow graphs and the general integrator is presented. The method is of simplicity, clear physical concept and convenience for use . It can also be applied easily to the design of other kinds of SCF(Switched Capacitor Filter)(e.g. high pass and band pass etc). An example is given to show the design of a fifth order ladder SCF,and the general purpose circuits simulation programs Pspice5.0 is used to verify the design. It shows that the design method based on SFG(Signal Flow Graphs) and the general switched capacitor integrator is efficient. |
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| Keywords: | SFG(Signal Flow Graphs) integrators active filters general switched capacitor integrator SCF(Switched Capacitor Filters) |
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