Thank you for the replies!I completely devoted Friday to follow your advices and redid what I have done.
Bayley, you were totally right about the way long leads impact the IGBT's performance. Never going to make the same mistake.
DJKOR, yeap. I relied on the scale guy who designed this board provided. I guess (I'm sure) it doesn't represent the real frequency, but the position of a tuning knob was pointing on the same spot both for the primary and secondary circuits. This encouraged me a bit, so I went onto power testing.
I didn't reject the idea of placing transistors on separate heatsinks and installed pair of 1.5ke220 as well.
Some photos of the monstrous setup:
and from the other side
You might want to check it's performance.
The power is somewhere from 1/4 to 1/3 of the scale, maybe a bit more, but don't think I had reached the half of it.
Youtube - DrunkensailorFirst videoLa BambaLemon TreeFixed frequencyFilmed on phone camera, please don't judge me.
Hi
loneoceans!
Thank you for keeping your eye on my progress!
The parameters of the primary are:Coil diameter:
90mm; capacitance:
0.0662 uF;
8 turns; something between 13 and 14 AWG with total lead length of 50 cm.
Parameters of the secondary:Coil diameter:
63 mm;
AWG 35;
2020±20
turns.
Topload looks like this with 7 cm inner and 19 cm outer diameters.
I'll be grateful if you recheck my calculations, in case I have made a mistake.
It's good I've made the second oneTesla main board, so I can evade my previous mistakes at it.
It's not finished, I've damaged my optical receiver. Have to wait again. I already got used to
Also with suppressors onboard.