Welcome Guest ( Log In | Register )

Reply to this topicStart new topic
Fourier Synthesis of a Square Wave, Problem in Excel spreadsheet
post Oct 8 2003, 23:28
Post #1

Group: Members
Posts: 18
Joined: 8-October 01
Member No.: 246

I'm trying to demonstrate Fourier synthesis of a square wave. I've done this before but this time it's not quite going the way I expect it too. In the formulas below I've got a multiplications and divisions that could be simplified but I've left them as is to show the sequence a little more clearly. In a1:a37 if got a fill sequence of 0:360 in steps. I'm comparing a small number of harmonics (4) with a larger number (20):




As expected, the top of the waveform is flattening off nicely but I think the last time I did this the change in risetime/falltime was much more pronounced with more harmonics. Shouldn't the dV/dt increase with more harmonics and become more abrupt?. So far, the rise and fall parts are too much the same.
Go to the top of the page
+Quote Post

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:


RSS Lo-Fi Version Time is now: 28th November 2015 - 17:00