CC or CV power supply for an induction heater?

[drummerdimitri]

I bought a 1000W 20A 48V DC induction heater from Aliexpress and need to buy a power supply for the unit.

Would I be better off with a CC or CV design? I'm afraid that a CV unit might get overloaded if a very large piece of steel is inserted into the coil and a CC unit would just limit the power output and not trip the power supply.

That being said, I know that these units need to get 48V immediately and not a slow voltage ramp up since it needs a kick to get them to start oscillating.

Either way, I will be installing a switch on one of the wires so that I can give the power supply time to get to the appropriate voltage before turning the unit on.

What are your thoughts on this?

[Vovk_Z]

I'm nor well known with induction heaters but unlikely it needs to be CC powered.