Seeing as this is a "commercial" version, I don't suppose you would be
interested in posting it to the list?

On 10/25/06, Bob Axtell <engineer@neomailbox.com> wrote:
>
> Mike Harrison wrote:
> > On Wed, 25 Oct 2006 17:45:32 +0100, you wrote:
> >
> >
> >> Hope this counts as PIC, not EE
> >>
> >> I've seen circuits for very simple, efficient, transformerless,
> >> non-isolated power supplies such as
> >> http://www.aaroncake.net/circuits/supply5.htm .
> >>
> >> Would I have a chance of running a very low frequency PIC16 on this
> >> type of supply? would i need to stick a 7805 in too? or is it simply
> >> too noisy?
> >>
> >> thanks
> >>
> >> jon
> >>
> >
> > You can get a few mA out of circuits like this, so possible to run PICs
> at normal clock rates,
> > obviously you'd use a 5V1 zener instead of 11V.
> > You'll want to add a little bit of series R (~100R fusible) to limit
> inrush current if it's plugged
> > in at the top of the cycle.
> >
> >
> >
> >
> I never saw the original post. Please contact me. You have to be careful
> with these, because power line spikes can cream your PS and PIC.
> I have a commercial version of this with all the safeties needed to make
> use of it, supplying 10-15mA for an AC motor control using a PIC12C
> device. Hundreds were made, been in the field working without a single
> failure after 3 years.
>
> --Bob
> --
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-- 

Shawn Wilton (b9 Systems)
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