Fourier analysis - Introduction

In Tina there are many advanced analysis features that provide powerful professional tools to study and evaluate electronic circuits both numerically and graphically. One of them is called spectral or Fourier analysis. In this booklet we will demonstrate Tina’s implementation of Fourier analysis which covers two different methods: Fourier series and Fourier spectrum. We will especially emphasize applications that are not described in detail in the manual of Tina. In the following we will shortly summarize the theory behind Fourier analysis, and then present examples on the topic. All the examples are available on floppy disk, as well.

In Tina Fourier analysis must be always performed in conjunction with the transient analysis. This means, that first you always have to carry out a transient analysis on the circuit. When the diagram window appears you have to select the curve you want to process using the cursor and from the Process menu choose Fourier series or Fourier spectrum. In the first part of this booklet we will investigate Fourier series and later on Fourier spectrum.