Induction Heater Tutorial

imsmooth

I just finished some changes to my website http://inductionheatertutorial.com

I was hoping that if anyone had some comments such as criticism, improvements, subtopics they would like to see, or if they are happy with its current form. The site goes into some theory. This is followed with some scope waveforms, and finally with a description of the circuit design. The unit can easily go over 10-12kw, and can boil copper and steel while levitating the workpiece.

LotusEffect

Wow this looks nice!

FisseHans

Great tutorial,... Im working with up to 200KW units daily, but this little system is cute

imsmooth

When working with such high power levels, how do you handle the switching? Do you run several parallel IGBTs, or are there single units for handling such power?

FisseHans

The units Im working with are pretty old, from around 1985, there are two towers of 5 parallel SCR's. Interesting setup and amazingly it still works after more than 20 years of daily use!