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Heatsink/ Heat Pipe / ThermoSiphon Cooling The cat will only make the mistake of putting its paw by your HSF once. :) Also the place to discuss the new high end heat pipe goodness. |
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01-10-2002, 09:29 PM | #1 |
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Single channel fan controller is done.
Finally I got around to completing it. Simple little variable speed fan controller. I am going to make a dule channel one to power the 2 120mm Panaflows I am going to have on my radiator.
Details on my site: www.dorrellco.com Last edited by jaydee116; 01-14-2002 at 09:50 PM. |
01-10-2002, 10:26 PM | #2 |
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might want a small heatsink on that reg
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01-10-2002, 10:35 PM | #3 | |
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01-11-2002, 12:32 AM | #4 |
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Yeah but if you wanted bigger fans...
Actually it;s pretty similar to my rad fan setup, except that uses a thermistor and a trimmer pot for the divider. The regulator is bolted to the Al chassis it's mounted on to avoid heating, gets barely warm with a 24W 172mm fan on it.
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Once upon a time, in a land far far away... Last edited by Butcher; 01-11-2002 at 12:35 AM. |
01-11-2002, 01:05 AM | #5 | |
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01-11-2002, 01:43 AM | #6 |
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my 172 at full speed roars like mad (54dBA from manuf. spec). At 1/3 voltage it's quiet and still pushed a lot of air through a rad.
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01-11-2002, 11:07 AM | #7 | |
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01-13-2002, 04:16 PM | #8 |
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it also pushes 200cfm + when at full speed...
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01-13-2002, 04:19 PM | #9 | |
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01-13-2002, 10:30 PM | #10 |
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A 235cfm gale at an ear-numbing 54dBA, ouch. I run it slow for a reason
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01-14-2002, 06:31 PM | #11 |
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have you polished the blades yet butch?
sand them with 2000 grit sand paper, then polish the blades |
01-14-2002, 09:17 PM | #12 |
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Um why brad?
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01-14-2002, 09:28 PM | #13 |
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silence
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04-03-2002, 12:01 PM | #14 |
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Question
JayDee116,
I am having a problem understanding your diagram at: http://www.dorrellco.com/fancontroller.html You have the input 12v, output and ground all connected. If you built this circiut it would short your PSU to ground and if you used a floating ground on your proto board it would fix the output at the input level. There must be a mistake. I tried to post to your site but you have blocked all registrations. Ecto Edit: This is serious people. Do not build the circuit as shown in the link. You will smoke your PSU in seconds. Last edited by Ecto; 04-03-2002 at 12:04 PM. |
04-03-2002, 07:18 PM | #15 | |
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Re: Question
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Here are some more references. http://www.qsl.net/n4xy/PDFs/lm317t.pdf http://webook.fset.de/20091999PHCHO/DATASHEETS/317.htm http://www.mitedu.freeserve.co.uk/Ci...ower/lm317.htm Last edited by jaydee116; 04-04-2002 at 07:20 PM. |
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04-04-2002, 09:00 AM | #16 |
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Hi!
Just wanted to say that I tend to agree with Ecto on this matter. Shouldnt you have capacitors between 12V and ground level to get it to work, like in the diagrams refered to in the links? Dont want to upset anyone here, hope you understand. Regards ropo Edit: Or just skip the capacitors all togheter, they just there to filter out noise or something (?). Last edited by ropo; 04-04-2002 at 09:16 AM. |
04-04-2002, 09:16 AM | #17 | |
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I have this very model working just fine for the last 2 months!!! Still runs my 120mm Panaflow for my rad fan. If any of the above was accurate it would not be working now would it!!! |
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04-04-2002, 09:19 AM | #18 | |
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04-04-2002, 09:44 AM | #19 | |
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I think you did just that, skiped the capacitors, when you built this thing. But I dont think you wired the 12V to GND, hehe. That would indeed short circuit your PSU. /ropo |
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04-04-2002, 01:10 PM | #20 |
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if you look closely at the wires in question, they have a greyed area around them in the middle, it's for the caps originally.
my pic shows how it should be connected without caps
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04-04-2002, 07:12 PM | #21 |
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Ahhh Haaa!!!! I see what you guys are saying. I will eat crow and agree. Will be fixed here shortly. I needed to updatre that page anyways. Sorry Ecto... Now who dosn't know!!!:shrug:
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04-06-2002, 10:43 PM | #22 |
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hey guys, here is a much better demonstration of the one I did: http://www.apachego.com/cdesign/athlon/fancont.htm
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04-07-2002, 12:04 AM | #23 |
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hmmm, that would be cool if I had a use for fan speed controllers. is there any logical reason to have them rather than finding a good voltage and sticking at it?
-=-MAtt |
04-07-2002, 10:38 AM | #24 | |
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Or you can just get a big sand resistor for a $1.00 and set it to whatever voltage you want. You could even add a 3 way toggle switch to make a on/off/selected voltage. You want to use a high wattage resistor though as regular little brown ones will butn up. Sand resistors can handle the extra wattage. |
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04-07-2002, 03:04 PM | #25 |
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hmm, now that you put it that way, it does sound like a reasonable thing to have.
--Matt |
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