CAJ | 학술논문

主要介绍了采用电压控制增益放大器AD603设计的截止频率可调且增益可控的高通滤波器。设计采用纯硬件制作,增益控制部分采用电位器调节AD603的控制电压达到控制增益目的,同时通过调节变容二级管电压的方法使滤波电路电容变化来控制滤波器截止频率。
주요개소료채용전압공제증익방대기AD603설계적절지빈솔가조차증익가공적고통려파기。설계채용순경건제작,증익공제부분채용전위기조절AD603적공제전압체도공제증익목적,동시통과조절변용이급관전압적방법사려파전로전용변화래공제려파기절지빈솔。
In this paper,by using the voltage-controlled gain amplifier AD603,high-pass filter with tunable cut-off frequency was designed.In this design,pure hardware was used,and in gain control,voltage amplifier AD603 could control voltage to regulate the gain control,and at the same time,regulation of voltage of varactor diode could change the filter circuit capacitance in order to control filter cutoff frequency.