arhi
Member
did some googling and then gave up .. (last time I did that I found solution just after posting but ..) anyhow .. here it is ..
Is there any difference if I use AC or DC for heater element (inside a soldering iron for example)....
Why do I ask .. I have some rework station that I use and I'm satisfied with ... I managed to get a good supplier of the new tips etc, but the best thing of all is that I managed to find a supplier for soldering iron part (I call it pencil .. donno how it is called).. and now I have few spare (the heater in new ones is ceramic compared to metal one in original but everything else is same)...
Now, I want to make additional soldering iron using these pencils using simple uC to monitor (and display) temperature and to control the heater inside the iron. The original uses AC to heater (24V) and from what I see it just turn it on/off with some hysteresis ... Mine idea is to use PWM to keep the temperature as close to "selected" as possible... but, I cannot PWM AC signal (or can I???) so I'd use 24V DC to heat the iron - will this have any side effect that you know of? I do not see any but .. better safe then sorry
Is there any difference if I use AC or DC for heater element (inside a soldering iron for example)....
Why do I ask .. I have some rework station that I use and I'm satisfied with ... I managed to get a good supplier of the new tips etc, but the best thing of all is that I managed to find a supplier for soldering iron part (I call it pencil .. donno how it is called).. and now I have few spare (the heater in new ones is ceramic compared to metal one in original but everything else is same)...
Now, I want to make additional soldering iron using these pencils using simple uC to monitor (and display) temperature and to control the heater inside the iron. The original uses AC to heater (24V) and from what I see it just turn it on/off with some hysteresis ... Mine idea is to use PWM to keep the temperature as close to "selected" as possible... but, I cannot PWM AC signal (or can I???) so I'd use 24V DC to heat the iron - will this have any side effect that you know of? I do not see any but .. better safe then sorry