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.

 

I think you are wrong. They may be triacs.

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

 

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....

 

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....

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.

 

Here is an Hakko circuit from the web, gives you an idea....



https://www.google.co.uk/search?q=h...9q_uKX6yAIVxtEUCh3-vAoU#imgrc=FqUsUS98JBUwnM:

 

Here is an Hakko circuit from the web, gives you an idea....



https://www.google.co.uk/search?q=hakko+temperature+control+circuit&biw=360&bih=248&prmd=sivn&source=lnms&tbm=isch&sa=X&ved=0CAcQ_AUoAmoVChMIr9q_uKX6yAIVxtEUCh3-vAoU#imgrc=FqUsUS98JBUwnM:

Thanks, looks good. On the original circuit board I posted there are 4x power looking components, what do you think they are?

C.

 

Triacs, as its a four channel station, with four separate irons.

 

Triacs, as its a four channel station, with four separate irons.

Four separate irons! Handy for octopuses

I see.

C.