Home Automation dimmer to variable DC interface
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Subject Author Date
dimmer to variable DC interface B Fuhrmann 03-12-09
Posted by B Fuhrmann on March 12, 2009, 6:45 pm
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Does anyone know of a reasonably simple circuit that can take a typical
dimmer output and create a DC output from 0 to 24 volts?

This would be used to drive a particular LED board that is designed for
24VDC, dims to almost off at 3VDC.


--
Bill Fuhrmann



Posted by Petem on March 13, 2009, 12:02 pm
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message de groupe de discussion :
vfWdna62DZDuDSTUnZ2dnUVZ_tXinZ2d@posted.cpinternet...
> Does anyone know of a reasonably simple circuit that can take a typical
> dimmer output and create a DC output from 0 to 24 volts?
>
> This would be used to drive a particular LED board that is designed for
> 24VDC, dims to almost off at 3VDC.
>


Bill a light dimmer cant be used in such a way cause light dimmer dont
really dim the voltage level, it only chop part of the syn wave leaving only
a fraction of the total power passing in the load, creating the effect of
dimming an normal light..

What you need is a variable power supply, that can be set from 3 to 24 volt
dc..

but can you be more precise of what you want to acheive? cause I am not sure
of your goal, do you need a 24 volt source to be set at 3 volt permanently?




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