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Registered Member #1321
Joined: Sat Feb 16 2008, 03:22AM
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Posts: 843
Wolfram brought up a good point about doing simulations, which is something I usually always do: start with a simplified circuit, and then add complexity after you verify that what you've got is working the way you expect.
For something like this I would start with the transformer (and associated capacitances) just connected to a resistive load and driven with a sine wave, for example...as much as possible using values derived from measurements rather than estimates based on theoretical calculations. Then you can add some estimated stray capacitance and see how the results change as you vary the stray capacitance over a reasonable range. I also try to make it realistic by including things like winding resistance. And when you do this you also want to look at things like the current circulating in your secondary coil. You might realize that you'll have more reactive current than you expected and need bigger wire.
@Ash Small: As a side note, with regard to the thread you referenced, I've decided that SLR is the way to go (for a ferrite transformer driven multiplier) based on the simulations I did. I plan on using only the leakage inductance inherent in my transformer and a relatively small value but relatively high current rated series capacitor like a CDE 942C type capacitor.
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
jpsmith123 wrote ...
@Ash Small: As a side note, with regard to the thread you referenced, I've decided that SLR is the way to go (for a ferrite transformer driven multiplier) based on the simulations I did. I plan on using only the leakage inductance inherent in my transformer and a relatively small value but relatively high current rated series capacitor like a CDE 942C type capacitor.
Thanks, JP. I've responded to this in the other thread, to avoid confusion, etc. here. Maybe you could have a look at my response (I edited my earlier post there), and maybe respond to my query regarding SLR topology, thanks again.
Registered Member #2901
Joined: Thu Jun 03 2010, 01:25PM
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Not exactly your setup but here is a paper about using a stack's (parasitic) capacitance for resonant ZVS operation, it uses a series LC tank on the primary and a parallel LC tank on the secondary with the C provided by the multiplier.
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A question concerning my Cockroft Walton multiplier
