CAJ | 학술논문

跨阻滤波器是将输入的电流信号转换成电压信号的同时完成信号滤波的一种新型滤波器.本文研究了高通跨阻滤波器的设计.根据传递函数中Q值的大小,分别给出了实现低Q值、中Q值和高Q值的跨阻高通滤波器电路、符号传递函数以及各种参数的符号表达式.高阶滤波器可以通过级联电压模式的滤波器二阶节电路得到.文中给出了设计实例.仿真结果验证了文中所提出的设计方法的正确性.
과조려파기시장수입적전류신호전환성전압신호적동시완성신호려파적일충신형려파기.본문연구료고통과조려파기적설계.근거전체함수중Q치적대소,분별급출료실현저Q치、중Q치화고Q치적과조고통려파기전로、부호전체함수이급각충삼수적부호표체식.고계려파기가이통과급련전압모식적려파기이계절전로득도.문중급출료설계실례.방진결과험증료문중소제출적설계방법적정학성.
Trans-impedance filter is a filter that eliminates the undesired signals and at the same time converts the input current signal into voltage signal. In this paper, the design methods for trans-impedance filter are proposed according the values of Q of the transfer function. The trans-impedance filter circuits for the realization if low Q, medium Q and high Q are given and the symbolic transfer functions are derived. The circuits introduced can be used to implement high order filter by cascading voltage biquad filters. A design example is presented and the simulation result verifies the correctness of the proposed design method.