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Author Topic: Guide: Variable Speed Fan Controller  (Read 15613 times)

chchchino

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Guide: Variable Speed Fan Controller
« Reply #10 on: February 12, 2004, 12:39:32 PM »

holy jebus i want one
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altec

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Guide: Variable Speed Fan Controller
« Reply #11 on: May 17, 2004, 02:00:19 PM »

Nice work gideonx but i dont understand your circuit.
Im dont know much on electronics but what do you use that capacitor for in a DC circuit?
A potentiometer(with the right resistance, id say 250ohm) in serial with the fan isnt enough for the control of the fan? you wouldnt need no switch then.
What does that LM317 do?

Ps: how do you attach a picture anyway?
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Skylined

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Guide: Variable Speed Fan Controller
« Reply #12 on: May 17, 2004, 10:21:25 PM »

1. I did that, not GideonX :)
2. What is it that you don't understand?
3. The capacitors were used to smooth the signal.
4. All the parts are available anywhere in the world.
5. The switch is only needed if you want to go up to 12V
6. LM317 is a voltage regulator.
7. Use the [img] tags and put between them the link to your image.
:)
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Shredder

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Guide: Variable Speed Fan Controller
« Reply #13 on: May 31, 2004, 04:58:09 AM »

Skylined,

Would it be possible to connect components such as resistors, LM317's and LED's on a Proto board without the use of exposed wires - perhaps by means of special soldering?  If so, how might I go about building such a circuit?

Thanks for your time, keep up the good work.
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Skylined

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Guide: Variable Speed Fan Controller
« Reply #14 on: May 31, 2004, 10:07:24 AM »

Yes you can, but you would have to build your own PCB, design it, etch it and drill.
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bigal

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Guide: Variable Speed Fan Controller
« Reply #15 on: July 04, 2004, 12:58:33 PM »

would a IRFZ4BN do the trick? i ask since it came out of a 20 volt battery drill, and i have all the components except that! (I ordered the wrong damn one!)
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Skylined

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Guide: Variable Speed Fan Controller
« Reply #16 on: July 04, 2004, 03:47:27 PM »

I've googled and I cannot find what's a IRFZ4BN, what is it?
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bigal

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Guide: Variable Speed Fan Controller
« Reply #17 on: July 04, 2004, 05:17:08 PM »

My bad, it is a 8, not a B!

http://www.semiconductors.philips.com/pip/IRFZ48N.html

It looks like i cant... But see what you think, you are the expert!
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Skylined

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Guide: Variable Speed Fan Controller
« Reply #18 on: July 05, 2004, 03:15:14 AM »

sh*t, I'm far far away from being an expert in electronics, I just know the very basics, and mostly electronic logic.

Sorry, but you'll have to get LM317  : \
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I LOVE ED

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Guide: Variable Speed Fan Controller
« Reply #19 on: July 05, 2004, 09:18:39 AM »

That's a MOSFET (think of it as a souped up transistor).  Even thought they might look the same, they are completely different.
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