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

Journal of Lanzhou University of Technology ›› 2024, Vol. 50 ›› Issue (5): 101-104.

• Automation Technique and Computer Technology • Previous Articles Next Articles

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

Abstract

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

CLC Number:

TN715.3

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

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