Soldering station circuit

Discussion in 'The Projects Forum' started by camerart, Nov 5, 2015.

  1. camerart

    Thread Starter Active Member

    Feb 25, 2013
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    30
    Hi,

    I can't justify a soldering iron station for this soldering iron bit (Attached) So I would like to make a circuit for it. Here is an idea of the circuit (Attached) for guidance. I can see what looks like 4x mosfets in the circuit, so I presume it uses PWM switching. When the iron is in it's holder I think it switches to 12v, and 24v when out of it's holder. It uses a Thermocouple for temperature sensing.

    It melts solder in 10 seconds with 4V.

    Any ideas welcome.

    Camerart.
     
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,754
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    I think you are wrong. They may be triacs.

    And that is a manual..no ckt diagram.
    So how can any one make it.
     
  3. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
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    745
    So now that you have finally solved the tip terminals,you want to make it get hot.

    They use triacs, to pulse 24V ac, you're going to need a thermocouple amp, ad595, or lm324 op amp type, and an op amp integrator to feed pulses to the triacs,via an opto-coupler.

    Good luck....
     
    Last edited: Nov 5, 2015
  4. camerart

    Thread Starter Active Member

    Feb 25, 2013
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    Hii DD,

    If I recall correctly, the thermocouple amp has a balanced bridge circuit with a normal temp thermocouple for balance. I'll look into them.

    I did notice that the 'original' circuit has a 12v and a 24v setting, plus off when put on the stand.

    C.
     
  5. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
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  6. camerart

    Thread Starter Active Member

    Feb 25, 2013
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  7. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
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    Triacs, as its a four channel station, with four separate irons.
     
  8. camerart

    Thread Starter Active Member

    Feb 25, 2013
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    Four separate irons! Handy for octopuses:)

    I see.

    C.
     
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