[chbot] PWM challenge

[Charles Manning]

Hi All

I have an idea I'd like to bounce around to see what others think.

I want to get a high precision PWM going to drive a buck switch mode at a
high enough frequency.
Using a single PWM channel limits the precision I can get.

So I was thinking: maybe there is a way I can combine two PWMs to generate
a single high precision signal.

For example, maybe one PWM can run at a slower frequency and provide the
"most significant bits "and another can run at a faster frequency and
provide the least significant bits" and combine them with a flip flop or
such.

Has anyone tried similar trickery in the past or have any other cunning
tricks?

Thanks

Charles
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ourshack.com/pipermail/chchrobotics/attachments/20240211/11e33963/attachment.html>