摘要
本文提出了一个增益常数H_B、中心频率ω_o及Q值彼此可独立调试的低灵敏度单电容二阶滤波电路,并用此电路构成了多环反馈FLF6阶带通滤波器。理论和实验证明,该滤波器不仅灵敏度低,而且动态范围也大。因而,具有一定的实用价值。
This paper presents a RC active second-order circuit with single capacitor and a multiple-loop feedback FLF sixth-order bandpass filter constructed by the circuit. The circuit is proved to have good properties, its gain constant H_B, central frequency ω_o.and Q factor can be tuned indepedently. It is proved by the analysis and experiment that the bandpass filter possesses not only low sensitivities but large dynamic range as well .Hence, it is a practical one.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1989年第1期47-52,共6页
Journal of University of Electronic Science and Technology of China
关键词
有源滤波器
电容
多环反馈
circuit theory
circuit design
active filters
operational amplifier
