Application of Multisim 2001 in the Design of Notch Filter with UAF42
Yan Liang, Liu Shi · Modern Electronic Technique · 2005
At present,the frequency of geophysical exploration instrument is low,so the notch filter is generally needed,especially in suppressing the 50 Hz power line interference.To suppress the 50 Hz power line interference,notch filter is needed in signal conditioning part of instrument.Mulitisim 2001 is used in design and optimization of new type notch filter based on UAF42 IC.Mulitisim 2001 based on the virtual electronic technique,let the designer simulate,analyze,validate performances of the designed circuit rapidly.Comparing with conventional technique,this virtual technique share high efficiency and reduced cost,and it can avoid different damages and accidents in process of experiment.In this paper,the frequency response of 50 Hz notch filter,which is based on simulation circuit of 50 Hz notch filter realized by UAF42 is simulated.Simulation result shows that 50 Hz notch filter realized by UAF42 reaches the requirement of design,and proves that Multisim 2001 can play important role in circuit design.