[Robotgroup] Wind info

[Paul Atkinson]

...crank the transformer up a few turns or use a schottky (or germanium)
diode for lower drop.

Paul

On 7/27/07, Edwin Wise <edwin at simreal.com> wrote:
>
>
> On 27 Jul 2007, at 12:47 PM, Paul Atkinson wrote:
>
> > I think the joule thief or something similar could be useful. I
> > can't look
> > up that link from work. The 'demon' in the URL causes it to be
> > filtered as a
> > "criminal" site... (no kidding)
>
> Good grief; your filters suck.
>
> Actually, all content/URL filters suck, pretty much by definition.
>
> The joule thief is a simple circuit; a little transformer, hand
> wound, and a transistor to pulse it, and an LED... so you aren't
> missing too much.
>
> >  Not sure if there is a clever way to rectify the AC with the LED
> > and still feed it with the capacitor.
>
> Yeah, not sure about that one.  The diode won't eat much CURRENT,
> just induce a .8V or so drop, so I suppose you just crank the
> transformer up a few more coils to compensate.
>
> Edwin!
>
>
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