Forum Rules - Formats - Spotlights  -  Home - Library - New Additions

variable fan speed control

TCPMetaTCPMeta
edited January 2016 in Hardware
I attend to build electronic projects and when I was building my huge variable bench power supply I had gotten a nifty idea on a small portable battery power supply and thought of other ways to use this circuit. Sure enough it hit me, a fan speed controller. It uses a few cheap passive parts and works very well. With a typical PC power supply 12 volt rail it can spin a fan quite nicely even with a volt or two voltage drop. If you know a bit about electronics you can even modify the circuit for higher loads for voltage and current.

varable-regulator.png?w=809

Comments

  • wpblogheaderwpblogheader
    TCPMeta wrote:
    cheap passive parts
    I hope it doesn't break down. :shock:
  • BODBOD
    wpblogheader wrote:
    TCPMeta wrote:
    cheap passive parts
    I hope it doesn't break down. :shock:

    I get the feeling you've no idea what that means.
  • TCPMetaTCPMeta
    Yep, he doesn't.

    Let me break it down.

    What I mean by cheap is these are typical jellybean parts that you can by a dozen or so for a few bucks instead if buying a expensive micro controller and spend hours to program. You can even salvage these parts from old electronics if need be since they're used in almost anything.
  • wpblogheaderwpblogheader
    TCPMeta wrote:
    Yep, he doesn't.

    Let me break it down.

    What I mean by cheap is these are typical jellybean parts that you can by a dozen or so for a few bucks instead if buying a expensive micro controller and spend hours to program. You can even salvage these parts from old electronics if need be since they're used in almost anything.
    Oh. I thought you were talking about the fan itself. I once tried to build something like this, skimped on the fan, and it was a total disaster.
  • TCPMetaTCPMeta
    I only use Nidec brand fans.
Sign In or Register to comment.