[Lab] AC adapter question

[Britta Evans-Fenton]

Maybe I'm drawing too much Amps.  Would you recommend this AC converter
over the last one:
http://www.digikey.ca/product-detail/en/LS150-5/285-1817-ND/1918828

I would have Amps to spare on this one.

Britta
*Technical Coordinator *
Artengine.ca

Ottawa Mini Maker Faire
Aug. 31 & Sept. 1 2013
www.makerfaireottawa.com
@MakerFaireOTT
#MMFO


On Thu, Jul 11, 2013 at 4:32 PM, Britta Evans-Fenton <technical at artengine.ca
> wrote:

> There are 188 IR leds:
> http://www.digikey.ca/product-detail/en/QED233/QED233-ND/187410  All
> connected in parallel each with their own Resistor ( 91 OHM 1/4W 5% CARBON
> FILM)
>
> Britta
> *Technical Coordinator *
> Artengine.ca
>
> Ottawa Mini Maker Faire
> Aug. 31 & Sept. 1 2013
> www.makerfaireottawa.com
> @MakerFaireOTT
> #MMFO
>
>
> On Thu, Jul 11, 2013 at 4:00 PM, Ken <klmckinnon at rogers.com> wrote:
>
>>  It should power a LOT of LED's.  How many were you using and what sort
>> of current limiting resistor did you have....a quick circuit diagram would
>> tell a lot.
>>
>> Ken
>>
>>
>> On 7/11/2013 6:49 PM, Britta Evans-Fenton wrote:
>>
>>  A little question about AC adapters.
>>
>>  I have an artwork that I did that I used an AC adapter to get power.
>>  It was on for 4 days during a show, and I was surprised on how hot it got.
>>  (I almost burned myself).  I did have duct tape on it holding it to the
>> back of a wall, so that may have been half the problem.
>>
>>  I'm showing the work again, but I'm wanting to make sure everything is
>> safe.  I need to hide the adapter due to aesthetic reasons, so I wanted to
>> create a little white box around it with air holes, and I was suggested a
>> fan, although it if it getting hot due to over working, adding another fan
>> might not be a good idea.
>>
>>  It is only a bunch of IR leds that it is powering, so I'm surprised at
>> the power I am needing.
>>
>>  any help would be very well appreciated.
>>
>>
>>  Here is the Adapter I used :
>>
>> http://www.digikey.ca/product-detail/en/VGS-25-5/102-1928-ND/2045659
>>
>>
>>  Here are the IR LEDS:
>>
>> http://www.digikey.ca/product-detail/en/QED233/QED233-ND/187410
>>
>>
>>  And the Resistors I have on them were 91 OHM 1/4W 5% CARBON FILM.
>>
>>
>>   Britta
>>  *Technical Coordinator *
>>  Artengine.ca
>>
>> Ottawa Mini Maker Faire
>> Aug. 31 & Sept. 1 2013
>> www.makerfaireottawa.com
>> @MakerFaireOTT
>> #MMFO
>>
>>
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