Inductive power transfer

[Inductive]

Hey

I was interested in if anyone has used inductive power transfer to get through a surface they don't want to damage... technically just a transformer with a bigger gap between so a bit lossy but lets you transfer through for various reasons; airtight case, difficult material to cut through or something you don't want to damage, whatever...

Anyone seen this before or know where to find it? Interested in as many examples/embodiments as possible if they do exist

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Inductive

[Airbozo]

Hey

I was interested in if anyone has used inductive power transfer to get through a surface they don't want to damage... technically just a transformer with a bigger gap between so a bit lossy but lets you transfer through for various reasons; airtight case, difficult material to cut through or something you don't want to damage, whatever...

Anyone seen this before or know where to find it? Interested in as many examples/embodiments as possible if they do exist

--
Inductive

Well, the toothbrush I use uses inductive power to rechrge the battery.

http://sonicare.factoryoutletstore.com/&arefx=3586598

Or browse through this...

http://www.thomasnet.com/products/inductive-power-systems-40090706-1.html

[simon275]

Have a look at this.

http://www.splashpower.com/Products

http://www.splashpower.com/Images/image1.jpg

I have always wanted one but they take a while to charge battery's

You could easily rig one up just have two copper coils wrapped around two small iron bars. It would be pretty lousy for transfering energy but it would work.

You could buy the above pad and adapt it somehow.

[Slug Toy]

You could easily rig one up just have two copper coils wrapped around two small iron bars.

not exactly that easy... but ill assume you mean to keep the two coils close to each other. depending on input voltage and actual size of the coils, you might need to keep them millimeters apart, or you could have them feet apart.

heres my suggestion. look at tesla coils. they use that principle to go from a few thousand volts up to a few hundred thousand. its basically an air core transformer. the big drawback is efficiency. they suck compared to iron core.

the biggest thing stopping this is the possibility of frying your hardware. if you want to get through an aluminum case... you need a reasonable magnetic field produced, and this can build charges in unwanted places. compound this by the fact that transformers work on AC... you're basically talking about a 60Hz emp working its way through your computer case.

a faraday cage may stop this... but i dont know. only one way to find out. try it and let us know what happens.