Circuits – 5$ Fan for Soldering Station

Hi guys,

Today I’ll show how you can control a PC fan with a simple circuit that I’ve created this is the easiest way I’ve thought that this could be done.IMG_0209

The goal of this project is to create a Fan that will be used when we’re working with the soldering iron station to remove all the fumes.
(you’ll see the difference in the video)

It’s my very first circuit so if anyone finds any mistake in my circuit please leave a comment here and help me improve it!

Before this circuit I’ve tried 2/3 different circuits but they all failed so let’s start with this one.

Parts Required:

  • 1x Stripboard
  • 1x 12V Power Supply (It will probably give something around 14V if you measure)
  • 1x Project Box
  • 1x PC Fan
  • 1x 100uF Electrolytic Capacitor
  • 1x 10uF Electrolytic Capacitor
  • 1x 12V Voltage Regulator (part number 7812)
  • 1x 5k Potentiometer
  • 1x Diode (1N4007 or 1N4004 for example)
  • Wires

Note: you need to cut the wires from your transformer and measure with a multimeter the volts, you just need 13V/14V if your transformer is giving more than that you need to had a heat sink to your voltage regulator otherwise your breadboard/stripboard will melt!

Here is the circuit diagram:

PC fan control

Here is the circuit on a breadboard:


Check the Circuit working

Here are some pictures of the assembly process of the circuit:

This slideshow requires JavaScript.

Another idea for this project, you can do something like this


Thanks for reading, leave a comment or send me an email. If you like this post probably you might like my next ones, so please support me by subscribing my blog and my Facebook page (you can find everything right column )


About Rui Santos

Arduino Tinkerer. Circuits Designer. Electronics Hobbyist. Blogger and Entrepeneur. I live in Portugal and I'm an Electrical and Computer Engineer.
This entry was posted in Circuits, Circuits Tutorials and tagged , , , , , , . Bookmark the permalink.

7 Responses to Circuits – 5$ Fan for Soldering Station

  1. Pingback: Tools – 200$ How To Set Up An Electronics Lab | Random Tutorials

  2. Pingback: Tools – How to Solder | Random Tutorials

  3. Pingback: » A $5 Fan for Soldering Fuzzy Hypothesis Online

  4. Ajinkya says:

    Thanx alot @Rui for uploading my photo…..

  5. Pingback: Random Nerd Tutorials Tools – 200$ How To Set Up An Electronics Lab | Random Nerd Tutorials

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