以運算轉阻放大器實現三個電壓式二階萬用濾波電路之方法與其性能之比較

Generation and Comparison of Three OTRA-Based Voltage-Mode Biquadratic Filter Structure

李家銘(Jia-ming Lee)

指導教授 ： 張俊明

中原大學/工學院/電機工程研究所/碩士(2013年)

https://doi.org/10.6840/cycu201300867

摘要

在類比濾波電路設計領域上，其電路首要重視的就是輸出訊號的精準度，使輸出訊號準確的操作在我們所預定的頻率，為設計電路第一目標。但經常發現以往設計的電路中，為了輸出更精準或彌補電路缺失而考慮補償電路，讓電路輸出更為精準。在科技日新月異的現代，對電路要求亦加卓越，不僅要求電路的精準度，也強調電路需簡單化，以降低成本，提高電路的競爭力，此皆為設計電路須考慮要素。　　

本論文提出的三輸入一輸出電壓式濾波電路，在不需改變任何電路結構的情形下，可實現低通、帶通、高通、帶斥、全通五種濾波信號。論文中主要是以三個運算轉阻放大器(Operational Transresistance amplifier )、八個電阻、以及兩個電容即達成五種濾波電路之功能。

最後，對於本論文所提之電路，均以H-spice軟體進行電路模擬，所使用製程參數為TSMC035μm，並於實際模擬結果與理論之間相互得到驗證。

關鍵字

濾波電路 ； 運算轉阻放大器

並列摘要

In analogy filter circuit design, the accuracy of output signal takes the most importance in electrical circuits where the first priority is to operate the output signal in the desired frequency. However, for output accuracy and circuit compensation to think of complicate the electrical circuits. With the improvement in technologies, electrical circuits not only require output accuracy but also emphasized the simplicity in order achieve cost down and higher competitiveness for these are the essential elements in circuit design.

In this paper, the voltage-mode filter with three single input and single outputs is presented by using three Operational Transresistance amplifiers、eightresistors、and two capacitors. The proposed circuit simultaneously realized low-pass, band-pass, high-pass, Notch, All-passsignals from the same configuration.

Finally, the simulation results validate and the theory predictions of the proposed circuit are verified very well by using TSMC035 H-spice simulation.

並列關鍵字

Filter ； OTRA

參考文獻

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