High Voltage RF transformer design?

Discussion in 'The Projects Forum' started by electronice123, Oct 11, 2008.

  1. electronice123

    Thread Starter Senior Member

    Oct 10, 2008
    302
    0
    I am building a high voltage air cored RF transformer similiar to a tesla coil.

    The transformer primary will be powered by a 12V square wave signal around 5-20kHz. The secondary needs to put out at least 1kV at very low amperage (less than 1A, the lower the better).

    The output will be used to charge a high voltage capacitor in a resonant circuit.

    For now, before I begin building, I am just wanting to know what considerations I need to take into account in building the transformer.

    Thanks for all the help!
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    Take a look at the High Voltage Projects on the right at this site:
    http://www.uoguelph.ca/~antoon/
    Several coil constructions are used there.

    Greetings,
    Bertus
     
  3. DickCappels

    Moderator

    Aug 21, 2008
    2,659
    632
    Gotta say, for only 1 KV, you can use a ferrite core and a plastic bobbin (That's how TV flyback transformers, soon to be extinct, are made). Or even a simple ringing choke, for that matter. The size would be much smaller than an aircore, and you can get better coupling between the primary and secondary, making tuning much less critical.

    Heck, its only 1 KV.
     
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