以運算轉阻放大器之主極點設計二階帶通濾波電路

張家豪

doi:10.6840/CYCU.2011.00204

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以运算转阻放大器之主极点设计二阶带通滤波电路

OTRA-Based Second-Order Bandpass Filter Employing The Dominant Poles

张家豪 , 硕士　　导师：张俊明　　

繁体中文 DOI： 10.6840/CYCU.2011.00204

滤波器；运算转阻放大器；主极点； Bandpass ； OTRA ； Dominant Poles

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摘要 │ 参考文献 (44) │ 国际计量

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Operational Trans-conductance Amplifier (hereinafter referred to as ‘OTA’) is recognized as the best active components in the analog circuit design, which has the characteristics of the input currents are zero. Operational trans-conductance amplifier (hereinafter referred to as ‘OTRA’) in recent years have been gradually raised by scholars, because the input voltages are equal to zero and that has a dual relationship with the OTA. There are natural advantages in the design of circuit, so we use OTRA for the active circuit components to design the circuit.
The output voltage of OTRA is equal to the product of current difference between the two input and transfer resistance. In the past, the transfer resistance of the OTRA is infinite, and the value of the output voltage is limited, so that OTRA positive terminal current is equal to the negative terminal current to design. But in this thesis we assume the value of the transfer resistance is limited, this way makes voltage output more accurately. On the other hand, the structure of circuit design for the resistances connect OTRA positive and negative input and input voltage, which has four features, 1. The positive variable on the right equation there must be a transfer equivalent capacitance. 2. The positive variable on the left equation equals the product of the OTRA positive terminal input voltage and conductance. 3. The negative variable on the left equation equals the product of the OTRA negative terminal input voltage and conductance. 4. Equation does not contain (Vi-Vj) G, when i is not equal to j and Vi*Vj is not equal to zero. Then according to admittance matrix analytical synthesis, we make the transfer function into a matrix and decomposed into two equations. The next step is establishing the basic circuit structure by these two equations and to form the whole circuit. This thesis proposed two OTRA and four resistors to establish second-order band pass filter without capacitances.
This circuit was simulated by H-SPICE. We found that the product of maximum transfer resistance and bandwidth would be changed with the circuit structure transform, and how to make a breakthrough to find this value becomes an important research direction.

参考文献 ( 44 ) 〈TOP〉

[1] C. M. Chang and B. M. Al-Hashimi, “Analytical synthesis of voltagemode OTA-C all-pass filters for high frequency operation,” in Proc.IEEE Int. Symp. Circuits Syst. (ISCAS) , vol. I, pp. 461–464, May. 2003.
连结：
[3] C. M. Chang, B. M. Al-Hashimi, Y. Sun, and J. N. Ross, “New highorder filter structures using single-ended-inp ut OTAs and grounded capacitors,”IEEE Trans. Circuits Syst. II, Exp. Briefs, vol. 51, no. 9, pp.458–463, Sep. 2004.
连结：
[4] C. M. Chang, C. L. Hou, W. Y. Chung, J. W. Horng, and C. K. Tu, “Analytical
连结：
[5] C. M. Chang, “Analytical synthesis of the digitally programmable voltage-mode OTA-C universal biquad,” IEEE Trans. Circuits Syst. II,Exp. Briefs, vol. 53, no. 8, pp. 407–411, Aug. 2006.
连结：
[6] J.-J. Chen, H.-W. Tsao, and C.-C. Chen, “Operational trans-resistance amplifier using CMOS Technology”,Electronic letters22nd,Vol.28 No.22,Oct. 1992.
连结：

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引用含有DOI的文献

DOI可强化引用精确性、增强学术圈连结，并给予使用者跨平台的良好使用经验，目前在全世界已有超过五千万个对象申请DOI。 如想对DOI的使用与概念有进一步了解，请参考 （ ） 。

DOI可强化引用精确性、增强学术圈连结，并给予使用者跨平台的良好使用经验，目前在全世界已有超过五千万个对象申请DOI。如想对DOI的使用与概念有进一步了解，请参考（）。