yes please.
David H

Dave Dilatush wrote:

> David Harris wrote...
>
> >After looking at the sample ascii drawings in Dave Dilatush's example, I
> >came across this....wasn't there a big discussion about a low cost power
> >supply -- how does this one rate?
>
> [Win Hill's design snipped]
>
> One thing to keep in mind when going through the circuits in that file I
> posted is that the guys on sci.electronics.design indulge in an awful
> lot of what I would call "design by committee" and they also toss a lot
> of speculative (i.e., "in theory, this should work") stuff around in
> their discussions.
>
> Not all of it is practical.  Any given circuit may work as presented, or
> it may not work because it's flawed, or it may be untested, or it may
> even be only a partial schematic and unusable without adding the missing
> components; so use with caution.
>
> The particular circuit you pointed to is not a general-purpose
> regulator; I think Win Hill was presenting it for discussion as one
> possible solution for a problem he was having with a power supply, as a
> way to keep the voltage on his power supply's main filter capacitor from
> rising excessively under low-load conditions.  AFAIK, that's all the
> circuit shown was meant to do.
>
> I have a general-purpose "hobby" power supply I built for my own use,
> which provides +5 VDC at a couple hundred milliamps for PICs and digital
> stuff, plus adjustable +/- 0 to 15 VDC outputs current-limited at 70 mA
> for analog stuff.  I use it for all of my bench work.
>
> If there's any interest, I can post the schematic for it tomorrow.
>
> Dave
>
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