Is it possible to make an induction heater with this power source? I'm having a bit of trouble understanding the fact that these coils have "100A" flowing trough them.
I understand that I'll probably need some sort of MOSFET circuit between the power source and the coil. I've tried searching the internet for a step by step way to make an induction heater, but haven't found any sources I can follow.

Also, do they need a few turns of thick copper tube or can many turns of thin wire be used?

Any replies greatly appreciated,

e.E.


btw, I'm sort of new to some of this inductance stuff, but the circuits I've seen seem to have a small amount of components, => easy?

 

Hello,

Is there a link to the page you saw this induction heater?
For induction heating you will need much more power than your transformer will deliver (upto several Kilowatts).
Here I have some links on induction heating:
http://www.educypedia.be/electronics/electricityinduction.htm

Greetings,
Bertus

 

It depends on how much heat you want to produce, but your supply is too small for any practical applications IMO.

An induction heater works by creating a large resonant current in a circuit, which is inductively coupled into what you want to heat, say a piece of metal. The '100A' you mentioned is that large current. Here are some articles to read about induction heating, and parallel resonant circuits.

http://en.wikipedia.org/wiki/Induction_heating
http://en.wikipedia.org/wiki/Resonant_circuit

The number of turns depends on what inductance you want your coil to be. One reason to use thick copper tube is that due to the skin effect, at a high resonant frequency your currents will be flowing on the surface only, so the center portion of a solid wire would be wasted. You can then pump water or something through the tube to cool it. A small thin wire might melt when a high current is passed through it.

 

I thinkyou are using L circuit to get resonance i.e max possible current

 

Hello,

Do you realize the thread is almost a year old?
The TS will be gone by now.

Greetings,
Bertus