Chaos generator MOSFET, how does it work?

Thread Starter


Joined Nov 24, 2020
The circuit in the picture is a chaotic generator formed from MOSFETs as opposed to op amps from the usual chaos generators.
How does it all work exactly? Whilst I have knowledge of how MOSFETs work and such, the connections etc are hard to understand what they all do completely.

In-depth theory of this would be greatly appreciated.



Joined Aug 7, 2020
Each pair of MOSFETs is an inverter as in the 4069UB.
That should help you figure it out.
But . . . .
It looks to me like a Pierce LC oscillator with a few extra connection blobs that shouldn’t be there, and he position of the earth connection looks dodgy.