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Re: Why tesla coil is air-cored to operate efficiently at high freq?
- To: tesla@xxxxxxxxxx
- Subject: Re: Why tesla coil is air-cored to operate efficiently at high freq?
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Tue, 11 Oct 2005 23:12:03 -0600
- Delivered-to: testla@pupman.com
- Delivered-to: tesla@pupman.com
- Old-return-path: <vardin@twfpowerelectronics.com>
- Resent-date: Tue, 11 Oct 2005 23:13:32 -0600 (MDT)
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Original poster: "Antonio Carlos M. de Queiroz" <acmdq@xxxxxxxxxx>
Tesla list wrote:
Original poster: Ed Phillips <evp@xxxxxxxxxxx>
"Good quality core materials can be used easily at hundreds of MHz.
Antonio Carlos M. de Queiroz"
You left out something, namely that the material must be operated at
suitable flux density. A lot of guys seem to try to wind high frequency
coils or chokes on skinny ferrite rods, which saturate at high voltage.
Oh, yes. Important point. "Air cores" don't saturate. It would not be
trivial to make a cored Tesla coil, with hundreds of A at the
primary coil.
Antonio Carlos M. de Queiroz