滤波器设计的概念

探讨了滤波器设计的概念，内容包括低通、高通、butterworth和陷波滤波器。

Chapter 6 of the NI Multisim Fundamental Circuits series investigates a number of filter designs with interactive SPICE simulation and analyses. Topics include low-pass, high-pass, butterworth, and notch filters. Download the circuits in the zip file attached below.

The following circuits are available for download and use in NI Multisim 10 and above.
 
 084  First Order-Low Pass Filter.ms10
 085  Second-Order Low-Pass Filter.ms10
 087  Sallen-Key Second-Order Low-Pass Filter.ms10 
 088  Third-Order Low-Pass Filter.ms10
 089  High-Pass Active Filter.ms10
 091  Second-Order High-Pass Filter.ms10 
 092  Butterworth Second-Order High-Pass Filter.ms10
 093  Third-Order High-Pass Filter.ms10 
 095  Wideband Bandpass Filter.ms10 
 096  Speech Filter.ms10
 097  Narrow Bandpass Filter.ms10 
 099  Active Bandpass Filter.ms10 
 101  Active Notch Filter.ms10