RE: Fw: Stair LEDs

["Neil Frost" <neil@xxxxxxxxxxxxx>]

it does..
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Not sure what I'm look at....
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There is a big "tub" that says 10V 470uf?
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and 4 small ones that have 539 IN something on them...
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It looks a but like this:
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____
__   __
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---    ---                    =
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The power output is connected to the small ones, two for each side
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Does that help?
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Neil
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________________________________

Fro
m: ukha_d@xxxxxxx on behalf of Neil Frost
Sent: Sun 19/03/2006 13:11
To: ukha_d@xxxxxxx
Subject: RE: Fw: [ukha_d] Stair LEDs



I'll take a look...=20

-----Original Message-----=20
From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of I=
an Bird=20
Sent: 18 March 2006 22:03=20
To: ukha_d@xxxxxxx=20
Subject: Re: Fw: [ukha_d] Stair LEDs=20

Does the 12v box come to pieces? I am after where the resistors are to
limi=
t the LED current. If not don't worry.=20

Thanks=20

Ian=20


--- In ukha_d@xxxxxxx, "Neil Frost" <neil@...> wrote:=20
>=20
> They are wired individually, they have what look like power plugs=20
you would find on the end of a wall wart...=20
> a bit like these: http://www.maplin.co.uk/images/full/35906i0.jpg=20
> They plug into a box which the 12v plugs into.=20
>=20=20
> The wire to the LEDs is has 24awg on the side (if that helps)=20
>=20=20
> The power adapter is 12v 200ma=20
>=20=20
> Hope that helps... I've just taken some pics and will upload them=20
somewhere tonight....=20
>=20=20
> Neil=20
>=20
> ________________________________=20
>=20
> From: ukha_d@xxxxxxx on behalf of Ian Bird=20
> Sent: Sat 18/03/2006 18:51=20
> To: ukha_d@xxxxxxx=20
> Subject: Re: Fw: [ukha_d] Stair LEDs=20
>=20
>=20
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> Since you have one in front of you ;-)=20
>=20
> Are all the LED's wired back to a plug each, or are they in strings
of=20
> say two or three. What do you see?=20
>=20
> The connectors I will have on the board are screw type ones.=20
>=20
> Thanks=20
>=20
> Ian=20
>=20
>=20
> --- In ukha_d@xxxxxxx, "Neil Frost" <neil@> wrote:=20
> >=20
> > OK, went to B&Q today... STAY AWAY FROM THE LIGHT!!!!!=20
> >=20
> > couldn't resist.... bought the 10 LEDs for =A330....=20
> >=20
> > So i would be Interested in the device too... please..=20
> >=20
> > Thanks=20
> >=20
> > Neil=20
> >=20
> > ________________________________=20
> >=20
> > From: ukha_d@xxxxxxx on behalf of Ian Bird=20
> > Sent: Sat 18/03/2006 11:51=20
> > To: ukha_d@xxxxxxx=20
> > Subject: Re: Fw: [ukha_d] Stair LEDs=20
> >=20
> >=20
> >=20
> > A quick update - already=20
> >=20
> > I spent some time thinking about this last night along with
all=20
the=20
> > other requirements already listed and I have two things to
add.=20
> >=20
> > 1) The LED outputs will be voltage switching ones and not
current=20
> > limited. This is because the resistors used in the current=20
limiting=20
> > version are dependent on the LED and since I have no control
over=20
> > what may be hung off these this is a risk not worth taking.
Also,=20
> if=20
> > using commercial LEDs they may have the current limiting=20
resistors=20
> > hidden in the 'string' somewhere and hence in the wrong place.=20
> >=20
> > 2) For my own application PWM is a really nice thing to have.
To=20
> > this end I am modifying the design to incorporate a Maxim chip
to=20
> > help with this. Samples ordered today and the programming gets=20
more=20
> > complicated but the end result should be rather sweet.=20
> > The down side of this is the number of outputs goes to 16 but=20
> that's=20
> > life.=20
> >=20
> > We shall see=20
> >=20
> > Ian=20
> >=20
> >=20
> > --- In ukha_d@xxxxxxx, Gareth Cook <g@...> wrote:=20
> > >=20
> > > Exactly that :-)=20
> > >=20
> > >  Gareth Cook=20
> > >  Tools and Process Architect=20
> > >  IBM SWG Sales - Lotus Park, Staines, TW18 3AG=20
> > >  Office: +44 (0)1784 445166 - Mobile: +44 (0)7980 445166 
AIM Chat=20
> > > : TheBoyG - MSN Chat : chat@=20
> > >  email: g@xxxxxxx=20
> > >=20
> > >=20
> > > ----- Forwarded by Gareth Cook/UK/IBM on 17/03/2006 20:28
-----=20
> > >=20
> > > Discussion=20
> > > Main Topic=20
> > >=20
> > > ukha_d@xxxxxxx=20
> > > Today 20:24=20
> > >=20
> > > .=20
> > > Subject:=20
> > > .=20
> > > Re: Fw: [ukha_d] Stair LEDs=20
> > > .=20
> > > Category:=20
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> > > Andy,=20
> > >=20
> > > There's a couple of videos on this site - I guess this is
the=20
> sort=20
> > of=20
> > > thing Gareth & Ian are aiming for :-)=20
> > >=20
> > > http://home.cc.umanitoba.ca/~umparekh/stair_lights.html=20
> > >=20
> > > Cheers,=20
> > >=20
> > > Tim.=20
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> > Yahoo! Groups Links=20
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> > [Non-text portions of this message have been removed]=20
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