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things you need to know about induction

cook

ing

The company is the world’s best induction heater controller supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

What is induction cooking?

 
Popular in Europe, induction cooking is catching on in Asia. A technology without open fire and precise heating is safe and energy-efficient. Suitable for modern families and easy on the pocket. 

So, what is induction cooking? Induction cooking heats the cookware directly rather than heating the hob first, ensuring more efficient use of energy. Less heat is emitted from the stove, so your kitchen remains cool, something to appreciate in tropical weather conditions! 

Hi, i have build a small induction heater, and i have some questions. I have attached a photo to understand better the situation.

At number
1: Primary coil 7 turns
2: Secondary Coil 3 turns
3: Working Coil around 20 turns
there is a white capacitor, 0.33uf 450V that is in series with working coil
resonating frequency around 62Khz

1 stay cool, 2 and 3 get really hot.

when 2 and 3 are absent the current consumption is 0,1A at 24V (maybe is the current need to magnetize the core and the loses in the bridge rectifier and transistors...)

At: 66Khz:
It heats an alloy of Chrome and Cobalt  (no iron), relatively fast.
It heats stainless steel (that contains Iron, i think !?) very fast.
It does not heat aluminum. in fact the current decrease when i insert the aluminum in the coil

My questions are:
- how can i decrease the heating of the working coil and secondary coil?
- why does aluminum not heat up, and the current decrease? how to fix this?

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