A VOLTAGE-MODE FIRST ORDER ALLPASS FILTER BASED ON VDTA

被引：10

作者：

Maneewan, Suwat ^{[1
]}

Udorn, Nawee ^{[2
]}

Duangmalai, Danupat ^{[2
]}

Silapan, Phamorn ^{[3
]}

Jaikla, Winai ^{[4
]}

机构：

[1] Buriram Rajabhat Univ, Fac Ind Technol, Dept Elect Technol, Khui Muang 31000, Thailand

[2] Nakhon Phanom Univ, Fac Ind Technol, Dept Elect Technol, Kham Thao 48000, Thailand

[3] Uttaradit Rajabhat Univ, Fac Ind Technol, Dept Elect Comp & Ind, Tha It 53000, Uttaradit, Thailand

[4] Fac Ind Educ, King Mongkuts Inst Technol Ladkrabang, Dept Engn Educ, Bangkok 10520, Thailand

来源：

ADVANCES IN ELECTRICAL AND ELECTRONIC ENGINEERING | 2014年 / 12卷 / 01期

关键词：

Allpass filter; VDTA; voltage-mode;

D O I：

10.15598/aeee.v12i1.846

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This article presents a new voltage-mode first order allpass filter (APF) employing voltage differencing transconductance amplifier (VDTA). The advantages of the circuit are that: the circuit description is very compact, consists of merely a VDTA and a capacitor: the phase shift can be electronically adjusted by current bias: it provides the lower THD of the output signal. Without any component matching conditions, the proposed circuit is very appropriate to further develop into an integrated circuit. Moreover, the proposed APF can provide the output current with high output impedance without modification of the circuit topology. The PSpice simulation results are depicted. The given results agree well with the theoretical anticipation. The maximum power consumption is 400 mu W at +/- 1.25V power supplies.

引用

页码：40 / 46

页数：7

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