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xlr8r 
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Joined: March 15 2009
Location: grantsville,ut.
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 Topic: DIY led dummy...
Posted: March 30 2012 at 9:10am |
Ok, I've decided to take the DIY LED thing. But I have a few dumb questions:
1- If a use a meanwell eln 60-48d dimmable driver, can I use a manual POT to control dimming?
2- Do I need the additional 1-10vdc power source for reference voltage?
Just trying to figure out the complete list so I don't get sticker shock. None of the kits I see online include a power source, only the wall plug-in wiring.
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When you hear hoofbeats....Think of a zebra
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sunflashx
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Posted: March 30 2012 at 1:36pm |
1. Yes.
2. Yes. On a meanwell, the dimmer circuit requires a external power source. I've seen people use a 9v input voltage because those adapters are more common. The maximum output power is set by the internal dial so it just ends up tuned for 9v being 100% power.
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xlr8r
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Posted: March 30 2012 at 2:27pm |
Thanks!
One other question. Do I need one power supply per driver, or can I power two drivers with one power supply?
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sunflashx
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Posted: March 30 2012 at 8:33pm |
Each driver uses
~20-40mA . Most power supplies are at least 500mA, so there's plenty of room there.
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Rara
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Posted: March 30 2012 at 11:06pm |
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Do you plan on taking advantage of the dimming ability? If not, there are constant current drivers that could save you some money.
I just ordered stuff for my first build. I have dimmable drivers for the display and a constant current driver for my sump.
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xlr8r
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Posted: March 30 2012 at 11:40pm |
Good. I only want to buy 1 power supply if needed. I do want to employ the dimming. First to make acclimation easier, second to get the color dialed in that I want and third, someday, get a controller for them to simulate sunrise/sunset.
Thanks everyone for the input! any other advise will be welcomed!
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sunflashx
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Posted: March 31 2012 at 8:56am |
Controllers add a extra level of complexity.
There's a couple controllers that can drive the 60-48D model, and a handful of them that will only drive the 60-48P model. You need to plan that in advance.
I bought one of the manual dimming kits from rapidled for my stuff.
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