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Interesting Meltdown

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Ah, an induction heater. The thing it seems to fail to mention (though admittedly I only skimmed through it) is that it requires HIGH FREQUENCY alternating current. You can't just plug it into the wall socket (for several reasons). Definitely a fun project though. I remember seeing an induction heater set up in much the same way that was able to turn ice cubes red-hot before they melted. Think the video's on youtube somewhere.

Thanks for sharing!
Matt

EDIT: Just read the last part more thoroughly--they are using an inverter to supply AC current at 204 kHz. They DID mention the high frequency, I just didn't read it carefully enough :rolleyes:
 
Why not me?

Why I cannot see the video, not even the frame where it should show up? Just a blank white part after "Enjoy".


Java, ???Flash, Firefox or what?
 
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Why I cannot see the video, not even the frame where it should show up? Just a blank white part after "Enjoy".


Java, ???Flash, Firefox or what?

Yup, Adobe Flash.
 
Adobe Flash uninstalled and reinstalled. OK now.

Why the coil has that extra reverse half loop?
 
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Adobe Flash uninstalled and reinstalled. OK now.

Why the coil has that extra reverse half loop?

I think it's just there so that both ends are on the same side of the coil, to go to the driver. It has no real purpose otherwise.
 
Off to a nap but a question first...

What could be a reasonable amplifier stage to drive such a coil at that frequency?

How to guess on the current (power) applied? I ignore everything (and more :confused:) on that subject.
 
What could be a reasonable amplifier stage to drive such a coil at that frequency?

How to guess on the current (power) applied? I ignore everything (and more :confused:) on that subject.

By "amplifier stage" do you mean "transformer stage"? I have often heard of people using inverters or even automotive ignition coils to drive the coil. I think the webpage said an inverter was used for this particular one.

Wouldn't know where to begin guessing about the power usage.

Matt
 
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