Right way to connect potentiometer

[SquaredLogic]

Well, I'm starting project of silencing my fans, for that job I decided to use potentiometers, and I have one little problem with them. While I was searching round Internet I found out people wire them on few diffirent ways but I don't know whats right. Down below I posted 4 photos, so if someone can look 'em and tell me whats right way for connecting.

[W-L]

 

Well, I'm starting project of silencing my fans, for that job I decided to use potentiometers, and I have one little problem with them. While I was searching round Internet I found out people wire them on few diffirent ways but I don't know whats right. Down below I posted 4 photos, so if someone can look 'em and tell me whats right way for connecting. Version 1.jpg Version 2.jpg Version 3.jpg Version 4.jpg

 

It depends on if your just doing 3 pin voltage control but this would be the way I've seen it done before:

http://www.bit-tech.net/modding/2001/12/10/adding_fan_speed_control/1

 

Also the yellow line on the 3 pin fan connector doesn't need to be connected to anything you can leave that alone, it's the RPM sense line.

[SquaredLogic]

 

 

 

It depends on if your just doing 3 pin voltage control but this would be the way I've seen it done before:

http://www.bit-tech.net/modding/2001/12/10/adding_fan_speed_control/1

 

Also the yellow line on the 3 pin fan connector doesn't need to be connected to anything you can leave that alone, it's the RPM sense line.

 

So, you wanna say one of 2 last photos I posted will do (besides yellow wire)?

[W-L]

So, you wanna say one of 2 last photos I posted will do (besides yellow wire)?

 

Yes that would be correct, I don't think they have no polarity so it should work both ways, note it does generate heat since it's basically a variable resistor so just be sure to not over do it on the number of fans.

[Hans Christian | Teri]

Yes that would be correct, I don't think they have no polarity so it should work both ways, note it does generate heat since it's basically a variable resistor so just be sure to not over do it on the number of fans.

 

Alternatively you can mount a small heatsink on the back.

[astranger200]

pick a potentiometer that can handle the right amps. I would get 2 amp potentiometers

[SquaredLogic]

pick a potentiometer that can handle the right amps. I would get 2 amp potentiometers

Why would I need 2 amp pot for 0,16 apm fan?

 

Alternatively you can mount a small heatsink on the back.

I will use 1 pot per vent.

[astranger200]

Why would I need 2 amp pot for 0,16 apm fan?

 

I will use 1 pot per vent.

incase you wanted to run more than one off of it

[PineappleHolidays]

So, you wanna say one of 2 last photos I posted will do (besides yellow wire)?

Yes

 

the two different ways just make it so speed is changed by either going clockwise or anti clockwise 

[SquaredLogic]

Just a little update just bougt pots and connected them by picture 3, it didn' t want to spin fan. Than I tryed picture 1 and it works like a charm.