[TriEmbed] RaspPi Power Protection

[Adam Haile]

Ahh, yeah. That little protection circuit (bottom left corner I assume)
quickly gets WAY over my head. I see what chips are there but have no idea
what that actually *does.* This is why I left CompE for SoftE... analog
circuits fry my brain :P Will have to research those chips some more and
see if my brain doesn't melt :P Thanks for the link... at least now I see
how it could/should be done. And in a VERY similar application.

On Fri, Jan 15, 2016 at 1:31 PM, Alex Davis via TriEmbed <
triembed at triembed.org> wrote:

> Check out how they did it on the Adafruit Pi Matrix Hat:
>
> https://learn.adafruit.com/system/assets/assets/000/022/441/original/leds_schem.png?1421437847
>
> It's all 5v, but the power input protection would be of interest.
>
> In my application, I run a 62x32 matrix off the same power supply as the
> Pi2, and to keep things happy required significant bypass caps across
> the power input to the matrix.
>
> > I'm playing with an idea for a Pi Zero "Hat" that would involve LEDs... I
> > know, shocking.
> >
> > So, I figured it would be possible to power the Pi off the LED power
> > input
> > but I want to support 12V LEDs as well. My current plan is just a jumper
> > (solderable probably) and a stern warning that it's your own fault if you
> > fry your Pi.
>
>
>
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> "The theater of noise is proof of our potential."
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