以線性組合觀念設計電壓式CCCII-C高階萬用濾波電路

Design of High-Order Voltage-Mode CCCII-C Universal Filter Structure Using Linear Combination Approach

黃重榮(Jung-Rong Huang)

指導教授 ： 張俊明 ； 侯俊禮

中原大學/工學院/電機工程研究所/碩士(2004年)

https://doi.org/10.6840/cycu200400376

摘要

近幾十年來，以電流傳輸器(Current Conveyor)設計主動濾波電路已受到國際研究學者廣泛的注目與研究。本論文的研究主題是利用第二代電流控制傳輸器(Second-Generation Current Controlled Conveyor, CCCII)設計高階多功能通用濾波電路。這種主動元件同時具有可用偏壓電流控制X端本質內阻的特性，故電路中不需使用電阻，可大幅減小積體化的面積。本論文所提出的高階萬用濾波電路是先以建構式方塊及數學歸納法設計出N階高通、低通與帶通濾波電路，再以線性組合觀念將其推廣至高階多功能（除上述三種濾波功能外尚有帶拒及全通）濾波電路。所設計的N階多功能通用濾波電路，只使用2n+4個單端輸入CCCII及n個接地電容器。

最後，本論文並以HSPICE做為實際驗證的模擬工具，繪出實際與模擬輸出濾波信號的大小及相位圖，以驗證本論文所設計之正確性。

本論文所提出的電路，其HSPICE的模擬結果（使用聯華電子公司UMC05 LEVEL49 的製程參數）證實與理論值相當吻合。

關鍵字

第二代電流控制電流傳輸器

並列摘要

Active filter design by using current conveyor has received much attention in recent several decades. In this study, the high order voltage-mode universal filter structure using Second generation Current Controlled Conveyors (CCCIIs) is presented. The advantage of the CCCII with electronically tunable intrinsic resistance at terminal X leads to a synthesized network without any resistors which can simultaneously. In the realize lowpass, bandpass, highpass, bandreject, and allpass signals from the same configuration. Only 2n+4 single-input CCCIIs and n grounded capacitors are needed to construct such a high-order voltage-mode universal filter.
First, we synthesize a voltage-mode high-order lowpass, bandpass and highpass filter structure by using n+2 single-input active elements and n grounded capacitors. As a matter of fact, n+1 different order output signals can be taken out from n+1 different nodes in the synthesized network. Therefore, the linear combination of all the n+1 different order output signals leads to an arbitrary filter structure which can realize any kinds of filtering signals.
Finally, HSPICE simulations with UMC05 level 49 parameters agree with theory very well.

並列關鍵字

Second-generation Current Controlled Conveyor - Capacit

參考文獻

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