【摘要】 提出一种基于CCCII的电流模式多功能二阶滤波器的电路。整个滤波电路由3个CCCII构成并通过RC电路接地,在输出端能实现高通、低通、带通、带阻滤波功能,可通过调节电路参数适应多种性能要求。设计结构简单,可独立调整其电路的截止频率和品质因数,无源灵敏度较低。通过PSpice软件对电路性能进行分析,仿真结果证明了该电路设计准确可行。更多还原

【Abstract】 This paper presents a circuit model of multi-functional second-order filter based on CCCII currentmode. The whole filter circuit was constituted by only three CCCII and five ground RC elements. The parametersof characteristic elements in the circuit were modified to achieve the functions of low-pass, high-pass, band-passand band-stop filters on the output side. The proposed model had simple design structure, independently adjust-able circuit quality factor and the cutoff frequency, and lower passive sensitivity. Through the PSpice software sim-ulation of the circuit performance, the circuit design was proved accurate and feasible.更多还原