modding PS2 slim 3pin fan question???

[zenloc]

I'm using a ps2slim 3pin fan for my new GC portable. Now what I need to know is how to use it. This is the one I'm using. It runs on 8.5v at 0.04A. Putting in more voltage makes it spin faster and less spin slower.




It has three pins:

1. V input (red)
2. Ground (black)
3. PWM signal to control the fan speed (white) or Sense I don't know exactly

Now just connecting V input and ground it won't work. It needs a signal to start. The white line has something to do with it. I have ben searching but I haven't been able to find a concrete circuit that will make it work.

I found a datasheet of a chip similar to the one found in this fan which controls the speed (LB11966M - 2-phase Half-Wave Driver):
http://pdf1.alldatasheet.com/datasheet- ... 1966M.html" onclick="window.open(this.href);return false;

Can anybody shed some light on this matter??

[bassmasta]

Putting in less voltage makes it spin faster and less spin slower.

I'm assuming you mean more?

[zenloc]

Changed to more

[Tchay]

I don't know if you own a slim, but you could record the voltage that goes into the white wire when the fan is activated? But it may be more complicated than just a voltage (as in it might involve highs and lows being outputted from the chip).

[zenloc]

I do believe it's more complicated that just putting a voltage into it. Also connecting the white wire to the red one won't make it do anything.

Anybody have any other idea's?