hi can i connect computer fan to 220v? if i can what else parts i need to use?
What type of fan i think it might be a 12 volts dc fan which is often used in a Computer's SMPS (generally named as power supply) so if you got that one turn to radioshack buy one 12 volt output transformer and then put a rectifier!
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OR if you are thinking powering a 12 volts dc fan with 220 v ac line don't ever think of that it will blow up!
yeah,thanks. that was stupid question from my side. i read how rectifier works (but 5% efficient) ,and transformer(i have one from old power supply),.....best choice is simply 12v wall charger ..
Yes it's good!
You could hot wire an old pc power supply and run the fan from that.http://4volt.com/Blog/archive/2009/03/12/howto-hotwire-a-pc-power-supply.aspx
Find an old wall-wart powersupply and use that.
my first choice is gone, i just readed document where is saying that droping voltage from 220v to 12 v with rectifier is only 5% efficient.so my 2nd choice (with your help) is to buy on flea market (in Novi Sad,Serbia) for only 1-2 $
Its also potentially lethal. The fan is not designed to be part of a mains powered system, and you can get a fatal shock from it.
thats my 2nd choice, but my first choice is to use 220v with some components?
Then you need a small transformer, a rectifier, a smoothing cal (470uF should be OK) and ideally a 12V regulator.