Current-Mode Quadrature Qscillator and Universal Filter Using ZC-CCFTAs

被引：0
作者：
Kumngern, Montree [1 ]
Knobnob, Boonying [2 ]
机构：
[1] King Mongkuts Inst Technol Ladkrabani, Fac Engn, Bangkok 10520, Thailand
[2] Rajamangala Univ Technol Thanyaburi, Fac Engn, Pathum Thani 12110, Thailand
来源：
2018 5TH IEEE INTERNATIONAL CONFERENCE ON ENGINEERING TECHNOLOGIES AND APPLIED SCIENCES (IEEE ICETAS) | 2018年
关键词：
universal filter; quadrature oscillator; current follower transconductance amplifier; analog circuit; OSCILLATOR;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
In this paper, a new current-mode quadrature oscillator and universal filter employing two z-copy current controlled current follower transconductance amplifiers (ZC-CCFTAs) and two grounded capacitors is presented. Either a quadrature oscillator or a universal filter can be obtained into single topology. In case the circuit works as a quadrature oscillator, the condition of oscillation and the frequency of oscillation can be orthogonally controlled. In case the circuit works as a universal filter, low-pass, high-pass, band-pass, band-stop and all-pass filters can be simultaneously obtained. SPICE simulations results are presented to verify the validity of proposed circuit, which are consistent with theoretical predictions.
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页数：5
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