| Issue |
Wuhan Univ. J. Nat. Sci.
Volume 27, Number 3, June 2022
|
|
|---|---|---|
| Page(s) | 261 - 264 | |
| DOI | https://doi.org/10.1051/wujns/2022273261 | |
| Published online | 24 August 2022 | |
Information Technology
CLC number: TN 75
An Electrical-Variable-Frequency Compact Wien-Bridge Oscillator
1
School of Information Engineering, Shaanxi Institute of International Trade & Commerce, Xi'an
712046, Shaanxi, China
2
School of Physics and Electronic Engineering, Xianyang Normal University, Xianyang
712000, Shaanxi, China
Received:
7
April
2022
This paper designs a current-mode Wien-bridge oscillator to use current-controlled conveyor (CCCIIs) based on the traditional Wien-bridge oscillator and the adjoint network theorem. This oscillator employs only four CCCIIs and two grounded capacitors. Its resonant condition and resonant frequency can be independently and electronically varied by tuning bias currents of the CCCIIs linearly. Then this oscillator is simple in design, compact in size, and convenient in adjustment. The oscillator analysis and computer simulation results have been included to support the generation method.
Key words: Wien-bridge oscillator / orthogonal electronic control / current-mode circuit / second generation current-controlled conveyor(CCCIIs) / adjoint network theorem
Biography: LI Yongan, male, Professor, research direction: analog signal processing circuits and current-mode circuits. E-mail: lya6189@sohu.com
Foundation item: Supported by the Natural Science Foundation of Shaanxi Province (2017JM6087)
© Wuhan University 2022
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