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Registered Member #103
Joined: Thu Feb 09 2006, 08:16PM
Location: Derby, UK
Posts: 845
I was thinking, to what extent does the inter-turn capacitance on the secondary influence the overall performance of the coil?
I would think that, say if you could totally eliminate it, a lot of power would be saved that would usually be wasted charging and discharging the overall capacitance lurking in the secondary.
Would spacing the turns 10mm apart (as in Teslas old flat secondary coils) help with performance / q factor, and by how much? Is their any reliable way of calculating inter-turn capacitance?
Registered Member #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
Eliminating inter-turn capacitance isn't going to improve performance of the coil. It does have an effect on the overall resonant frequency of your secondary though as the capacitance is on the orders of pico farads.
Remember, that although the secondary Q is quite high, the primary Q is relatively low, so most of the losses are in the primary circuit, not the secondary. If you want to make any improvements to efficiency, than make the improvements on the primary side.
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Inter-turn capacitance
