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RISS 인기검색어
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- 저자 : 신위재 (愼瑋재) (검색결과 3 건)
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본드그래프 모델링에 의한 필터回路網의 周波數應答 表現에 관한 硏究
It requires a long tedius calculations to get frequency responses of filter networks with multi - poles by conventional techniques for network analysis. In order to reduce the amount of computation, a method of obtaining the frequency response of a filter network using bond graph modeling is proposed in this dissertation. The method is based on the bond graph representation of a linear system, suggested by R.C.Rosenberg et al. To utilize the well-known techniques in the linear graph theory, the system's bond graph is first transformed to the gyrobond graph, and then it is further reduced to a linear directed graph, which is called the point graph. The transfer function of the system can be obtained using the gyro - adjacency matrix of the gyrobond graph. The proposed method is applied to two specific canonical problems: determination of the transfer functions of multi - pole butterworth and Chebyshev filters. It turns out that the point graph approach permits easier derivation of the transfer functions than the conventional techniques. We thus conclude that for those who are familiar with the bond graph theory, the bond graph modeling is a simpler and more systematic approach to the calculation of frequency responses of filter networks.
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A Block diagram for the verstile active R Filter is Propsed. according to the Block diagram, a verstile active R Filter is realized by using two op Amp and 7 resistors. The Filter has very low sensitivities to all circuit parameters, is tunable over wide frequency ranges, and is suitable for high-frequency and medium-Q applications. Laboratory experiments confirm the validity of the theory and demonstrate the Versatility of the circuit as the biguardratic building block.
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