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Nick: Jipa  Info
Age: 29
Location: Tampere

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Uploaded: 02.12.2007 21:04
Categories: Electronics

Jipa - The simpliest fancontroller in the world... The pcb is about 3 x too large right now, but I guess I'll add some connectors there

The simpliest fancontroller in the world... The pcb is about 3 x too large right now, but I guess I'll add some connectors there, so there'll be no extra space.

Specs are:
Max. power handling (like it would matter) ~100 W
Adjustment for minimum voltage/fan speed (makes sure the fans don't stop at any setting)

When I add the connectors, I'll propably also add a trimmer for the max. speed.

Cost for this thing is about 2 (around three billion dollars with the current exchange rate)


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27.01.2009 19:59 JipaI haven't bought boards in a long time so I can't remember how much they usually cost.. Those prices don't seem too high anyway. The second board you linked seems to be a bit too expensive and also small, try to find a larger one from somewhere.
27.01.2009 19:55 rippehttp://www.elektrolinna.fi/kauppa/index.php?ryhma=C0008C735 there is some boards, would this http://www.elektrolinna.fi/kauppa/index.php?ryhma=C0008C735&infosivukoodi=SD12N be good for connections or is there some places where i can buy that kind of board cheaper?
27.01.2009 19:48 Vilpewhere you have bougth that *electrinic* board
02.12.2007 22:20 Jipa"anything" as it has resistors.. I'm using NPN transistor and that's made with the popular LM317 adjustable regulator. I suggest anyone who want to build their own fancontrollers to use the LM317.
02.12.2007 21:53 Zyrppais schematic anything like this? http://tinkentooli.dy.fi/index.php?sivu=projektit/lm317t_supply
02.12.2007 21:20 JipaI took all the parts from the bottom of my miscellaneous parts-box :P
02.12.2007 21:19 JipaI invented the sceheme as I was doing this and got the part values via trial'n'error, so I don't have anything to share really.. And the part values depend from the transistor used, and the one I used doesn't seem to be in sales anymore. Basicly it's just a NPN transistor and some resistors to adjust the base-current. Fan is between emitter and ground and collector is connected directly to 12 V.
02.12.2007 21:16 JipaDunno about the quietness of the fan, the motor makes crazy noises at low voltages.
02.12.2007 21:16 Yoshischematics i presume
02.12.2007 21:13 s0lidChemastic avaible?
02.12.2007 21:12 nixarii got that same fan, or actually 2 of them.. it's rly quiet to be 10yrs old :P