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suggestion for power supply ( DIY laptop cooler fan )? Answered

I'm working to make a DIY laptop cooler fan.. the problem is I don't know which power supply to use ( not USB ). I already have 3 different fan, which is, 1 using 12v ( mo/bo fan I guess ) , 1 using 5v and 1 also using 5v but it has 3 fan.. both this 5v fan from broken cooler stand.. only the fan still working.. right now.. i'm using my Nokia charger  with a little modification( OMG.. I don't what will happen next ) but the 12v fan is not functioning.. which ' size ' of power supply I must use if I want to operated all this fan by using one power supply only.. please help..

I'm sorry, my English very sucks~ I admit :-(

3 Replies

user
7654321 (author)2011-01-27

I used to have a laptop cooler fan that ran on USB. It should have plenty of power to run the 5v fans.

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user
Re-design (author)2011-01-27

Fans consume so little power that all you need to worry about is to get the voltage right. So pick the one that will be easiest to mount.

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user
frollard (author)Re-design2011-01-27

+1. It should draw much less current than most power supplies, including usb.

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