Author Topic: VIC setup 2  (Read 373 times)

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Re: VIC setup 2
« Reply #5 on: January 04, 2012, 08:33:47 am »
As for the resistance and inductance values for each coil, this is what I came up with:

primary:      10.98H 25ohms
secondary:   28.5H 192ohms
chokes:        aprox 28H 172ohms (each)

for me these look quite high values when compared to Stans. Maybe because of the flatter core he used resulting in less inductance and resistance.

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Re: VIC setup 2
« Reply #6 on: January 04, 2012, 09:29:19 am »
Hydrogen mask,

I think your values are very big, try using a gap on the core... next time try winding all coils in the same bobbin, one over the other... this maximize the coupling (less turns needed)... be careful, this high voltage is very dangerous... in your design you will see a lot of sparks if all goes well.


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Re: VIC setup 2
« Reply #7 on: January 04, 2012, 11:24:31 am »
On one of your pictures i saw you use a 3C90 core, that has a very high permabillity and thus you get your high inductance values.

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Re: VIC setup 2
« Reply #8 on: January 04, 2012, 12:03:21 pm »
3C90
Initial permeability ui @25 °C; @10 kHz; @0.1 mT
2000 ±20%

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Re: VIC setup 2
« Reply #9 on: January 09, 2012, 09:28:42 am »
Yesterday I tested this setup and found notting significantly different from the previous setup1. The only difference was that the system resonated at a lower frequency about 6khz. Still no phaseshift and still no Pdifference at terminals.
This makes me think that the core material/permeability plays an important role in the system.
So now I will try to find the proper core and and check that the resistance and inductance values are close to what stan had. (aprox 1.26H for chokes and secondary)