Chaos

RE: Chaos

jc2048 — Tue, 30 Apr 2019 22:06:24 GMT

...you can see from the bottom trace that it's not very stable, ...

Why did I write that? It's supposed to be chaotic.

The first trace (the nice spiral) is with the supplies down at just plus and minus 5V. There the op amp inputs and outputs are so constrained that it biases the righthand attractor to the centre and the other one doesn't exist, instead it bounces off the limit to the left (which is why the spiral is so orderly).

I thought this circuit wouldn't simulate very well, but TINA-TI does do a reasonable job with it. Here it is with the waveforms displayed XY in the simulator's virtual oscilloscope.

[View:/resized-image/__size/620x417/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-5c93170c-b606-40a8-969b-a561aa515652/2450.contentimage_5F00_191031.png:620:417]

RE: Chaos

three-phase — Tue, 30 Apr 2019 20:20:11 GMT

These look great, I had not come across Chua's Circuit before now.

Kind regards

RE: Chaos

DAB — Tue, 30 Apr 2019 18:17:18 GMT

Complex circuit interactions can yield some very entertaining video and artistic renderings.

DAB

RE: Chaos

14rhb — Tue, 30 Apr 2019 16:19:21 GMT

Hi Jon,

This looks interesting and something I'll have to read about as I am not familiar with Chua's Circuit, thanks for blogging it.

Rod