| KHN滤波器频率特性的进一步研究 |
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| 引用本文： | 李安,郭静,薛卫东,袁战军,黄荷洁.KHN滤波器频率特性的进一步研究[J].海南大学学报(自然科学版),2010,28(2):144-147. |
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| 作者姓名： | 李安 郭静 薛卫东 袁战军 黄荷洁 |
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| 作者单位： | 陕西国际商贸学院,电子与信息工程系,陕西,咸阳,712000 |
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| 基金项目： | 陕西国际商贸学院自然科学研究基金 |
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| 摘 要： | 提出了一种能同时或能分别实现低通、高通和带通滤波的多功能KHN滤波器,通过调节其电阻比,其电路也能被修改成一个正交振荡器,而且其电路的极点频率和品质因数能够被独立地,精确地调节.该电路使用了3个集成运放、2个电容和9个电阻,且使用的元件较少,性价比高,计算机仿真证明它正确有效.
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| 关 键 词： | 正交振荡器 通用滤波器 集成运算放大器 |
Further Research on Frequency Characteristics of KHN Filter |
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| LI An,GUO Jing,XUE Wei-dong,YUAN Zhan-jun,HUANG He-jie.Further Research on Frequency Characteristics of KHN Filter[J].Natural Science Journal of Hainan University,2010,28(2):144-147. |
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| Authors: | LI An GUO Jing XUE Wei-dong YUAN Zhan-jun HUANG He-jie |
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| Institution: | (Department of Electronics and Information Engineering, Shanxi Institute of International Trade ＆ Commerce, Xitmyang 712000,China ) |
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| Abstract: | A new multifunctional KHN filter was designed, which achieve high-pass, band-pass and low-pass illtering respectively and simultaneously. Through modifying resistance ratio, the circuit can become a currentmode oscillator and the pole angular frequency and quality factor can be tuned accurately and independently. The circuit contains three OPs, two capacitors and nine resistances, which has higher cost-effective. The simulated results were also illustrated. |
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| Keywords: | quadrature oscillator universal filter Op |
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