新颖的电压模式通用双二阶滤波器

A Novel Voltage Mode Universal Biquadratic Filter

提出了采用第二代电流传送器构成的电压模式三输入、单输出多功能通用双二阶滤波电路 ,该电路通过选择不同的输入信号 ,可在输出端得到电压模式二阶低通、高通、带通、陷波和全通五种滤波功能。每种滤波功能的滤波器的固有角频率ωP和品质因素 QP可实现正交调节 ,所有滤波器都具有低的无源和有源灵敏度。

A voltage mode 3 input and 1 output multifunction universal biq uadratric filter is presented based on second generation current conveyors (CCI I+/-) Five filtering functions of voltage mode second order lowpass, hi ghpass, bandpass, notch and allpass filter at the output terminal can be obtai ned by selecting different input signals The natural angle frequency, ω P , and quality factor, Q P , of each filter are orthogonally tunable, and all filters feature low passive and active sensitivities