[TriEmbed] Power Supplies

[Glen Smith]

I still have a protoboard that has a melted spot in it from an exciting
event with an over powered unfused supply. I shorted + & - 12 volts across
a 741 op amp. It split the 8 pin pdip package in half & sent the top half
up to the ceiling from bench height, leaving a tiny burn mark there.

Ah college....

I would definetly put a fuse in there.

Glen
On Oct 16, 2013 8:39 PM, "Jeff Highsmith" <jeff at jeffhighsmith.com> wrote:

> A supply with lower current might be smaller and perhaps create
> fractionally less heat. If there was a safety issue with having more
> current than necessary (though I can't think of one at 3A), you could
> always put a 500 mA fuse between your supply and project. That would
> limit damage in the event of a short.
>
> Jeff :)
>
>
> On Oct 16, 2013, at 20:06, Grawburg <grawburg at myglnc.com> wrote:
>
> > I have a good 12 VDC 3A power supply.  If my project only requires 300 -
> 400 mA is there any reason
> > why I can't or shouldn't use my power supply?
> >
> > Brian Grawburg
> > Wilson
> >
> > --
> > The truth will set you free . . .but first it will piss you off.
> >
> >
> >
> >
> >
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