5V/12V Fan Switch with 2 Fans?

BenW · Post by **BenW** » Wed Aug 03, 2005 4:20 am

Hi,

I'm planning on following this guide to make a switch to put on the side of my desk to control the speed of my system fans.

The guide only shows how to do it with 1 fan.

Can i use the switch with 2 fans or would i need 2 switches?

Thanks
Ben

Elixer · Post by **Elixer** » Wed Aug 03, 2005 4:56 am

Just wire the fans in parallel and you shouldn't have a problem. You can use one switch so long as it's rated for the current of two fans (which it almost certainly is)

BenW · Post by **BenW** » Wed Aug 03, 2005 3:16 pm

I know what you mean by parallel but how would i wire that exactly?

When looking at this picture, would i just solder wires from both fans to the middle pins?

teknerd · Post by **teknerd** » Wed Aug 03, 2005 4:30 pm

BenW wrote:I know what you mean by parallel but how would i wire that exactly?

When looking at this picture, would i just solder wires from both fans to the middle pins?

exactly

BenW · Post by **BenW** » Thu Aug 04, 2005 7:45 am

So it just draws twive as much power instead of dividing by 2.

I guess?

Thanks
Ben

Yggdrasill · Post by **Yggdrasill** » Thu Aug 04, 2005 8:06 am

BenW wrote:So it just draws twive as much power instead of dividing by 2.

I guess?

Thanks
Ben

That is right, the voltage is the same, but the amperage (and wattage) doubles.

BenW · Post by **BenW** » Thu Aug 04, 2005 4:01 pm

Yup, getting my volts and amps mixed up!

Thanks