文章基本信息

标题：Single Voltage Differencing Gain Amplifier-Based Dual-Mode Quadrature Oscillator Using Only Grounded Passive Components
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作者：Orapin Channumsin ; Kapil Bhardwaj ; Mayank Srivastava 等
期刊名称：Engineering Letters
印刷版ISSN：1816-093X
电子版ISSN：1816-0948
出版年度：2022
卷号：30
期号：1
页码：255-260
语种：English
出版社：Newswood Ltd
摘要：This article describes the compact quadrature sinusoidal oscillator, which produces both voltage and current quadrature outputs at the same time. By utilizing a voltage differencing gain amplifier (VDGA) as an active element, the proposed dual-mode quadrature oscillator is realized with only three grounded passive elements, namely one resistor and two capacitors. The adjustment rules for the condition of oscillation and the frequency of oscillation are orthogonally controllable by the independent VDGA bias currents. Nonideal influences on the circuit’s behavior are also examined in detail. PSPICE-based computer simulation was used to evaluate the theoretical hypotheses of circuit functioning.
关键词：Voltage Differencing Gain Amplifier (VDGA);quadrature oscillator (QO);dual-mode operation;tunable circuit