RE: _Very_ soft start and slow fade for lights!

[Keith Doxey <keith.doxey@xxxxxxx>]

Hi Nigel,

Mode Electronics used to make some controllers for shop displays and
nightclubs that would slowly fade up and down over quite lengthy periods
but
I have just looked at their website and it looks like all th eolder stuffis
no longer made :-(

If you could get hold of a 0-10v controlled dimmer you could have the
control input to the dimmer connected to a large capacitor which was slowly
charged or discharged via a variable resistor. I am aware that this is a
semi homebrew solution and not what you were originally looking for.

Keith

> -----Original Message-----
> From: Nigel Orr [mailto:nigel@xxxxxxx]
> Sent: 25 October 2000 12:58
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] _Very_ soft start and slow fade for lights!
>
>
> Just a vague query at this point, hope someone here can help.
>  I am looking
> for a simple controller that will fade up a light over a
> period of an hour
> or so, and fade it down over the same period a few hours
> later, and do that
> repeatedly.  Think of it as a daylight simulator, and you'll
> be fairly
> close to the mark.
>
> Is there anything 'off the shelf' available that will do
> that?  I'm aware
> of 'soft start' dimmers etc, but I'm not sure they can be
> made to go that
> slowly, and to fade off.  It needs to be something quite simple... at
> present it would be for an incandescent light, but there
> might be a need
> for similar control of a fluorescent at some point, so any
> pointers would
> be gratefully received.
>
> It doesn't need remote control or much programmability, it
> does need to be
> reliable, and ideally it would be a single box that I _don't_
> have to build
> for myself... but anything can be considered at this stage!
>
> Nigel
>
>
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