Amperage question

ground_sniper · 10-29-2009, 04:19 PM

Hey, I'm trying to rig a CPU fan to run off of a power adapter for a charger. So far it's working, but I was wondering if it would eventually overload.

The Fan itself requires 12V DC 150mA and the adapter I'm using is outputting 12V DC 300mA. Would the fan be able to continuously handle the extra 150mA? If not, is there anyway I could modify the output of the adapter?

Definitely not an electrical engineer.

**5drive** · 10-29-2009, 04:56 PM

You might try forum.doityourself.com or electriciantalk.com

ground_sniper · 10-29-2009, 05:15 PM

Thanks for the links, got an answer to the question.

Quote:

The 300mA rating on the power supply is the maximum output. When only the fan is connected, the power supply provides only the 150mA required by the fan.

**5drive** · 10-29-2009, 05:22 PM

Thanks for posting the answer.

10-29-2009, 04:19 PM	#1
ground_sniper New Member Join Date: Oct 2009 Posts: 3 Grams: 119.30 Thanks: 0 Thanked 0 Times in 0 Posts Stock Portfolio Total Value: 0.000 Gain/Loss: 0.000%	Amperage question Hey, I'm trying to rig a CPU fan to run off of a power adapter for a charger. So far it's working, but I was wondering if it would eventually overload. The Fan itself requires 12V DC 150mA and the adapter I'm using is outputting 12V DC 300mA. Would the fan be able to continuously handle the extra 150mA? If not, is there anyway I could modify the output of the adapter? Definitely not an electrical engineer.

10-29-2009, 04:56 PM	#2
5drive Slacker Join Date: Aug 2006 Posts: 4,543 Grams: 19,100.85 Thanks: 479 Thanked 1,388 Times in 912 Posts Stock Portfolio Total Value: 0.000 Gain/Loss: 0.000%	You might try forum.doityourself.com or electriciantalk.com __________________ "Make the most of the Indian Hemp Seed and sow it everywhere." George Washington "The drug is really quite a remarkably safe one for humans, although it is really quite a dangerous one for mice and they should not use it." J.W.D Henderson Director of the Bureau of Human Drugs, Health and Welfare, Canada Posting Guidelines

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