# usb device powered direct by AC

I have a USB ventilator, that I want to use while i'm soldering to bring some fresh air to my atelier. I don't want to have my computer there to do it. So I was thinking to connect it to a 5v regulator and connect it direct to AC. I google around but didn't find any diagram or project that I could use as base. Basically I want to have something like:

AC -> Switch On/off -> 5v Regulator USB Port -> GRD.


UPDATE:

Links to buy iphone charger isn't what i'm looking for. I would accept it if at least, the iphone charger have an on/off switch

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Use an iPhone charger, if you have one. – m.Alin Jun 9 '12 at 22:11
Do you have a bench power supply? Then use this and salvaged USB port. If not: buy/build one, you will need it. – 0x6d64 Jun 10 '12 at 9:15
@ox6d64 i have it but the ventilator is usb. I could destroy the usb and connect directly the pins to energy, but that i didn't want to do – VP01 Jun 10 '12 at 9:40
USB simply provides 5V, the current is usually only limited by a simple fuse. So directly connecting 5V DC to the right USB pins will not hurt the fan. – 0x6d64 Jun 10 '12 at 10:29