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Author Topic: Munster's House Blown Away By Wrong Power Supply  (Read 75 times)

Offline The Man/Kind Project

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Munster's House Blown Away By Wrong Power Supply
« on: September 20, 2017, 07:30:53 pm »
I created this great lighting scenario for my Moebius Munster's House.  Candle LED's in the windows, a strobe LED in the little circular window to make it look like a dungeon lab.  I put a porch light in so Marilyn can't make out.  I was using a 9V battery to power it, and it did - for a few minutes, then it would die out.  So, I had a 12VDC LED Dimming Power Supply, and I hooked it up directly to the leads coming out of the house.  I turned it on and bam - a couple of lights turned different colors and then nothing...nada...zilch.

What power supply do you recommend.  I don't want to have this problem on my Polar Light's Enterprise Refit that I've been working on for a year.

Thanks!

If Boyd reads this - you are a God!


Offline Gadgetron_3000

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Re: Munster's House Blown Away By Wrong Power Supply
« Reply #1 on: September 20, 2017, 07:39:43 pm »
Some questions...

  • What are the power specifications of the LEDs you put into the model?
  • Did you use resistors for the LEDs?
  • What's the amp rating on the 12-volt power supply?

"They've done studies, you know.  60% of the time, it works every time."

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Offline The Man/Kind Project

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Re: Munster's House Blown Away By Wrong Power Supply
« Reply #2 on: September 20, 2017, 07:48:39 pm »
These were like small TenaControls individual LED's.  0.3W or something like that.  There were less than 20 of them.  They all had resistors and were tested with the 9V before installation.  Never had a problem.

The Power Supply is a 60W 2.5A magnetic dimmable LED power supply.

Thanks so much for your reply.


Offline Gadgetron_3000

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Re: Munster's House Blown Away By Wrong Power Supply
« Reply #3 on: September 21, 2017, 10:47:06 am »
If all you are using are individual LEDs with resistors on each, there should be no reason why they drained out your 9-volt battery quickly.

Since the 2.5A power supply you have is 60-watts, that means the voltage output is 24-volts (60 divided by 2.5 equals 24).  That is most likely the reason your LEDs blew out as your individual LEDs probably aren't rated for that high of voltage.

If you are just using simple batches of LEDs, a decent-amp (between 1A to 2A) 5-volt, 9-volt, or 12-volt adapter should work.  Just be sure the LEDs you get are rated to whatever voltage you decide on.

As for me and power supplies, I use various ones ranging from standard "wall wart" adapters (up to 12-volts and usually over 2A) to a computer ATX power supply (for testing purposes as it provides high-amperage 3.3-volts, 5-volts, and 12-volts).  I do have an LED driver adapter like this one:



It is a 12-volt DC 3.3A unit, and it works just fine.

I hope this helps.

:)
"They've done studies, you know.  60% of the time, it works every time."

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Offline Mstowell

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Re: Munster's House Blown Away By Wrong Power Supply
« Reply #4 on: September 21, 2017, 01:23:13 pm »
Check out the powers supplies at hdamodelworx.com
Matt

Offline The Man/Kind Project

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Re: Munster's House Blown Away By Wrong Power Supply
« Reply #5 on: September 21, 2017, 04:41:12 pm »
Thanks very much guys!  I'll check out HDA.

 




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