以差動差分電流傳輸器及完全差分電流傳輸器設計四階帶通與全通濾波器電路

Design of Fourth-Order Bandpass and Allpass Filters Using DDCC(s) and a single FDCCII

方嘉宇(Chia-Yu Fang)

指導教授 ： 張俊明

中原大學/工學院/電機工程研究所/碩士(2014年)

https://doi.org/10.6840/cycu201400441

摘要

本研究主要實現四階帶通及全通的濾波電路。類比濾波器是以簡化電路和精準的輸出信號為設計考量，故本研究以此為目標而提出的設計法，先將四階帶通及全通濾波電路的轉移函數以矩陣模式表示，並使用主動元件特性完成矩陣關係式。
電路中的主動元件主要採用兩種特別的電流式主動元件：負型差動差分電流傳輸器(Differential Difference Current Conveyor，簡稱DDCC-)與負型完全差分電流傳輸器(Fully Differential Current Conveyor，簡稱FDCCII-)，可將浮接的元件改成接地元件，在電路設計過程中使用四個主動元件、四個接地電容及四個接地電阻，以完成最精簡之電路。
設計完成的電路以100kHz為操作頻率，並以電路模擬軟HSpice使用TSMC035μm製程進行電路模擬與驗證，並探討電路輸出信號不精準的因素，最後利用被動元件對頻率響應的敏感度分析與蒙地卡羅分析做深入研究，將被動元件值進行理論調整而改善誤差

關鍵字

帶通濾波器 ； 全通濾波器 ； 差動差分電流傳輸器 ； 完全差分電流傳輸器 ； 巴特沃斯濾波器

並列摘要

In this study, the main achievement of fourth-order band-pass and all-pass filter circuit. Analog filter circuit is simplified and accurate output signals for the design considerations, this study as a goal of the proposed design method, the first fourth-order band-pass transfer function and all-pass filter circuit matrix model representation and use initiative to complete the matrix element characteristic relationship.
The main active components in the circuit uses two special current-mode active elements: DDCC- and FDCCII-, and then the floating element can be changed to the ground element, the use of four active components in the circuit design process, four grounded capacitance and four ground resistance to complete the most simple circuit.
The circuit design is completed for the operating frequency of 100kHz and Hspice software uses TSMC035μm process for circuit simulation, and discuss circuit output signal is not precise factors Finally, the sensitivity of the frequency response of passive components analysis and Monte Carlo analysis to in-depth research.

並列關鍵字

Band-pass filter ； FDCCII ； DDCC ； All-pass filter ； Butterworth filter ； Hspice.

參考文獻

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