# Forum: Analog Circuits Induction Cooking-Stove

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Hello Guys,

I am at the High-School (Electrotechnic) and I have a nice evaluation
project and want to build a Mini Induction Cooking Stove where the
inductors should be arround 5-7cm diameter and powered from 24V DC.

Now I have the problem to find the right formulas to calculate the
Induction and the capacitor...

Does someone have a circuit scheme and the formulas how to do this?

Thanks
Kayham

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Search the net for royer converter.

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Thanks, yes I know, but how must I calculate the induction coil?

There are some peoples working on this issue but currently have
not found any usefull infos about the calculation of the inductor.

From a parallal forum I have goten the info to use this product
http://www.spulen.com/shop/product_info.php?products_id=1159
to build the induction coils

I like to get arround 300 Watt output per inductor ...

I have bought one on ebay but I do not know, how to change it for
the use in 24V systems which is realy great idea exspecialy in
Iran where we have very much solarpower.

Kayham

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It is not possible to convert a commercial induction stove to 24V.

Try this: http://www.eg-solar.de/english/home.htm

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This solarcoocker is not what we need, because we have enought
Energy-Storage for several weeks available du to a Gel-Battery
manufacturer here in the city in northern Iran.

For the 230V Induction Cooking Stove:

I know, but I was about to figure out how it works...

OK, NOW I know, I have the need for 2 primary coils of 6-9 rounds
but I do not know the size of the copper (mm²) and then the inductor
which is in between to two coils.

Thanks
Kayham

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Maybe it would be easier to buy a inverter to use the battery voltage
and convert it to 230V for a domestic induction cooker?

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> I like to get arround 300 Watt output per inductor ...
> I have bought one on ebay but I do not know, how to change it for
> the use in 24V systems which is realy great idea exspecialy in
> Iran where we have very much solarpower.
You and your circuit must be able to handle (al least) 13 Amps at 24V to
get 300W. And: 300W isn't very much power for cooking...

> but I do not know the size of the copper (mm²)
As you must handle high currents: the more the better.

> because we have enought Energy-Storage for several weeks available du
> to a Gel-Battery manufacturer here in the city in northern Iran.
So take 10 x 24V and you have 240VDC and a farily small current of 1.3
amp.

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Right and I have gotten the idea from another thread, because
if I use the normal induction cooking stove it has always
2000 watt and more, even if I have not much to cook.

So, spliting the inductors into smaller parts could be the
soulution which I wan to try out.

Have a nice week
Kayham

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