基于文桥振荡器的高Q带通滤波器的设计

兰州理工大学学报 ›› 2024, Vol. 50 ›› Issue (5): 101-104.

• 自动化技术与计算机技术 • 上一篇下一篇

基于文桥振荡器的高Q带通滤波器的设计

李永安^*1,2, 曹剑馨¹, 侯婧嫱¹

1.陕西国际商贸学院信息工程学院, 陕西西安 712046;
2.咸阳师范学院物理与电子工程学院, 陕西咸阳 712000

收稿日期:2022-09-01 出版日期:2024-10-28 发布日期:2024-10-31
通讯作者: 李永安(1961-),男,陕西三原人,教授.Email:lya6189@tom.com
基金资助:
陕西省自然科学基金(2017JM6087)

Design of high-Q band-pass filter using Wen-bridge oscillator

LI Yong-an^1,2, CAO Jian-xin¹, HOU Jing-qiang¹

1. School of Information and Engineering, Shaanxi Institute of International Trade & Commerce, Xi’an 712046, China;
2. School of Physics and Electronic Engineering, Xianyang Normal University, Xianyang 712000, China

Received:2022-09-01 Online:2024-10-28 Published:2024-10-31

摘要/Abstract

摘要： 从单电阻调谐的文桥振荡器出发,首先导出该振荡器的振荡条件和振荡频率,然后给出了二阶带通滤波器的两种设计方案.第一种设计方案的优点是可以实现极点频率的单电阻调节,第二种方案的优点是极点频率和品质因数可正交调节.两种方案均可实现两个带通输出,均可调节电阻使电路振荡,而且振荡条件和振荡频率均可分别调节.通过计算机仿真证实了所设计的电路正确有效.

关键词: 高Q, 带通滤波器, 集成运放, 文桥振荡器

Abstract: Based on the single resistor tuned Wen-bridge oscillator, first, the oscillation conditions and oscillation frequency of the oscillator are derived. Moreover, two design schemes of the second-order band-pass filter are given. The advantage of the first design scheme is that the pole frequency can be adjusted by a single resistor, while the advantage of the second scheme is that the pole frequency and quality factor can be adjusted separately. Both schemes can realize two band-pass outputs and adjust the resistance to make the circuit oscillate, which the oscillation conditions and oscillation frequency can be adjusted separately. The designed circuit is proved to be correct and effective by computer simulation.

Key words: high-Q, band-pass filter, integrated operational amplifier, Wen-bridge oscillator

中图分类号:

TN715.3

李永安, 曹剑馨, 侯婧嫱. 基于文桥振荡器的高Q带通滤波器的设计[J]. 兰州理工大学学报, 2024, 50(5): 101-104.

LI Yong-an, CAO Jian-xin, HOU Jing-qiang. Design of high-Q band-pass filter using Wen-bridge oscillator[J]. Journal of Lanzhou University of Technology, 2024, 50(5): 101-104.

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基于文桥振荡器的高Q带通滤波器的设计

Design of high-Q band-pass filter using Wen-bridge oscillator

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