I don't believe Inductive Heating only occurs in AC, as in "Alternating". The current does not have to be alternating as in "reversing" directions periodically. All that is require is a time varying current, which could be Direct current, as long as it is varyinng. The important thing is the "varying" part and that should be enough to induce magnetic coupling on the metal substrate and induce Inductive Heating. Am I not correct?
Jojo

