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GriffinRU
RC-Monster Aluminum
 
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Posts: 748
Join Date: Oct 2005
04.08.2007, 01:22 AM

Quote:
Originally Posted by smhertzog
Sorry here are the pics
Looks like your caps are dead already...

Quote:
Originally Posted by BrianG
Lol, it is pretty funny.

I don't know if I'd leave them on there when running. That's a lot of weight to be bouncing on those sensitive FETs! BTW: why do you have a sink on the caps?? Caps should never get warm unless you are constantly charging and shorting them out, and that is simply from the current flow. The majority of the heat is most likely due to the FETs heating up, which heats the traces, which then travels to surrounding components (caps). Besides, caps, being round, don't have much surface area touching the sinks.

Like Serum said; it's not a bad job. If those don't keep it cool, the it's time to give up! :)
Caps will get warm, because they eating high-voltage spikes from FET's transitions left and right. And they have ESR value which will tell you how much power loss (heat) will be dissipated by cap. And their ESR goes up with temp...

Last edited by GriffinRU; 04.08.2007 at 01:28 AM.
   
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