Abstract
With the rapid development of electronic technology, the filter circuit has been widely used in various occasions. Therefore, based on the study of various analog filter circuit principles, this paper users the Multisim simulation platform to design the corresponding low-pass and band-pass filters. In order to verify the performance of the filter circuit, the normal signal, noise signal and filter output signal are respectively observed by oscilloscope after noise is introduced, and then the performance is analyzed according to the waveform and parameters. The experimental results show that all the designed filters can achieve good filtering effect.
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