Magnetically held bearing fans

[Fyber]

Well, I saw the ionic breeze mentioned in this thread, and maybe somebody wondering how it was powered.

I believe they use a bunch of piezoelectric fans, which basically flap in the air when electricity is supplied.

Like so.



I read about that in CPU. Eventually, they hope to put them inside CPU dies to cool them off from inside (even though they'll probably make very little airflow, we'll see how it works)

The nano-lightning seems more interesting though.

EDIT: Sorry for hijacking the thread, but I felt compelled to mention that.

[Dunno]

Apologies to interested parties but DSL is capped at 3GB in South Africa.

Originally Posted by DrMemory

TV high voltage power supplies produce a DC voltage. Actually the flyback transformer produces high voltage AC much like a switching power supply, but it is rectified to DC.

From this Link it would seem that the supply from the flyback transformer is not rectified to DC. Unless you consider the voltage tripler as the rectifier?

In order to have the electrons flow with the radiator GROUNDED, you will have to produce a negative voltage (electrons). Otherwise you will produce current flow (and voltage) in the ground path and trip ground fault interrupters if you have them in your AC outlets, and confuse the crap out of the circuits (power supply, motherboards, etc.) that expect ground to be ground (~ 0V).

I dissagree:
A Potential Difference of 30KV is 30KV wether it's from - 15 KV to +15KV, or 0KV to +30KV, or 0KV to -30KV.
Wherever there is a PD there will be a current flow in a 'closed' circuit no matter the direction of electron flow.
Now if one of your conductors is through earth, to make sure of no PD between sensitive components, you still end up with electrons flowing around 'in a circle' with whatever is making the PD acting as a pump.
If you consider earth to be the 'negative wire', which happens to be earthed:

High voltage (actually any voltage) seeks the path of least resistance, not shortest distance.

so there wont be any current flow to anything at the same voltage (MB, PS, etc.) because ther is no PD between them.

While I agree with your statement above; in this case I was refering to the air gap between radiator and grill. Here the path of least resistance is also the shortest path.

Correct me if I'm wrong...

[Dunno]

Fyber

What you have fond there is piezoelectric ceramic this stuff can be made to vibrate at extremely high frequencies. One can use them to make the finest water-mist known to man!
(I think?)

The Bong cooling guys should be looking at these. A couple of these babies would make for the biggest cooling/evap surface possible. No fans reqd!

?? With bong cooling; why not duct the cool air into the case, as well as using the water to cool the CPU GPU etc?? A UV bacteria killer; Water attached to the mains, wioth a cistern to keep the water level up.
(The valve with a float, like the ones used in toilets, but smaller. An old carburator would work)

As for building these into CPU's? I dont think that sort of vibration will be good?

I think that new silicon that melts at 600 C is the way to go:
Throw volts at it;
Get high delta T's; which are easier to dissapate to air.

I'd post it over there.