Posts: 1 How to write the Fourier series up to Nth harmonic?

[red009]

I need to write the Fourier series in the Trigonometric form up to 9th harmonic

Fourier Series for Square Wave with odd symmetry
Peak value of 0.3 volts
Average value of zero
fundamental frequency of 1Hz

Is this right?

4*0.3V/(pi*N)*sin(Nt)? please respond I really need help and am very confused!

 

[red009]

Hello? Anyone there?

 

[chiro]

Hey red009 and welcome to the forums.

Do you know what the general expression is for all harmonics? If so, what terms of that expression should you keep for the range of harmonics you listed above?

 

[red009]

is it 4*Amplitude/(pi*N)sin(N*t*freq)?

 

[chiro]

is it 4*Amplitude/(pi*N)sin(N*t*freq)?

From wikipedia we get the document:

http://en.wikipedia.org/wiki/Square_wave

Is that the form of your square wave or is transformed in some way?