I am only driving LED's. I have a 22 x 10 matric of 3mm LED's. The reason I
want to vary the voltage is to provide display dimming in the dark since the
unit is destined for my car.

Wesley

On Fri, Jun 22, 2001 at 10:53:02PM +1000, Roman Black wrote:
> Hi Wesley, the ULN2803 does not make output voltages,
> it is a bunch of darlington transistors in a chip
> designed to be either on or off.
>
> If you explain more about how many devices you
> are driving, and what they are, and why you need to
> vary the output voltage then many people can offer
> suggestions.:o)
>
> If you need the ULN2003 datasheet I can email it to
> you.
> -Roman
>
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--
Wesley Moore                      http://www.1moore.org/
RMIT - BEng (Comp Sys Eng)/BApp.Sc. (Comp Sci)  3rd Year

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