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Edcculus

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I'll admit I have absolutely no knowledge when it comes to electricity.

I need a power supply for my Son-of-a Fermenation chiller that was so generously donated to me. The fan (computer fan) is 12V .25A. I have a 12V power supply I can cut to power my fan. It is .5 A. Can I use it? Will that difference in amperage kill the fan?
 

ClaudiusB

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The fan (computer fan) is 12V .25A. I have a 12V power supply I can cut to power my fan. It is .5 A. Can I use it? Will that difference in amperage kill the fan?
You are the lucky one, your power supply can handle two . 25 A fans.


Cheers,
ClaudiusB
 

Figbash

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You could use a 12v, 50 amp supply with no problem. The fan will only use as power as it needs.

Tom
 

Drustanos

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You could use a 12v, 50 amp supply with no problem. The fan will only use as power as it needs.
For a linear supply, this is true.

If it is a switching supply (which more and more supplies are these days) there will be a minimum load requirement, and surely 250mA will not meet it on a 50A supply. Some have built in protection though.
 
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I'll admit I have absolutely no knowledge when it comes to electricity.

I need a power supply for my Son-of-a Fermenation chiller that was so generously donated to me. The fan (computer fan) is 12V .25A. I have a 12V power supply I can cut to power my fan. It is .5 A. Can I use it? Will that difference in amperage kill the fan?
You can and should use it. You would want to size your PS for about 70-80% of FLA anyway your only talking about 20% more. If I read this right you want to use a 1/4 amp load on a 1/2 amp supply? Fuse it and Do it!
Cheers
JJ
 
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