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Re: Re: [OT] LED Dimming




Hi David
Nice little bun fight going on there.............
There goes my xPL-LED dimmer project........

Thanks
Frank

----- Original Message -----
From: "David Buckley" <db@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Saturday, March 26, 2005 4:40 PM
Subject: [ukha_d] Re: [OT] LED Dimming


>
>
> --- In ukha_d@xxxxxxx, "Frank Mc Alinden"
<fmcalind@b...> wrote:
> > Hi David
> >
> >> To dim LEDs properly requires a PWM controller.  LED dimming
> >> is pretty tied up in patents and patent litigation, so
> >> these aren't exactly in over-supply.
> >
> > I  was hoping to make an  xPL-LED dimmer just using a pic .....
> > Is there more to it than just using the pwm feature of the
> > pic ???...
>
> Not as far as I am aware, as long as you dont try to sell it :-)  The
> problems are all with patents.
>
> http://www.lsionline.co.uk/lsi/features/articles/jan2005_b.asp
>
>
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> Yahoo! Groups Links
>
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>



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