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Fourier Series: Full Wave Rectified - Example 2

Updated: May 17, 2021

Question:


Determine the Fourier series up to the third harmonic of a full wave rectifier.

Answer:

Sketch the Function and work out the period (L):

The graph has a period of L = 4𝜋


The function reflects in the y-axis so it is even, therefore we can use the formulae for Fourier series for any period and the function will contain no sine terms. We can also simplify the formulae down for a0 and an.


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