10-05-2020, 08:32 AM
Tracy, I looked at your previous post about square waves and wondered if you'd been getting too much sun. A symmetrical square wave is the sum of all odd harmonics. 1/3 of the 3rd, 1/5 of the 5th etc. The wiki page https://en.wikipedia.org/wiki/Square_wave is rather mathematical but the expansion of the sum with 4/PI etc here https://en.wikipedia.org/wiki/Square_wav...r_analysis is clear.
There's a good animation here: https://en.wikipedia.org/wiki/Square_wav...e_wave.gif
In the real world, for the most part, square waves aren't degraded just by leaving out harmonics. There's also phase shift with frequency which gives you the typical rounded corners and/or overshoot and ringing.
There's a good animation here: https://en.wikipedia.org/wiki/Square_wav...e_wave.gif
In the real world, for the most part, square waves aren't degraded just by leaving out harmonics. There's also phase shift with frequency which gives you the typical rounded corners and/or overshoot and ringing.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
