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Registered Member #4052
Joined: Thu Aug 11 2011, 04:43AM
Location: IN ,USA
Posts: 69
Is inductance the only important thing to be adjusted on the primary of a SSTC, because I remember reading somewhere that ratio of primary turns to the secondary turns coupled to it also matters. So, is it true that a high ''step up'' ratio runs the MOSFETs harder.
I only ask because I used 38AWG on my coil which gives about 200 turns per inch, and since I have already fried a pair of MOSFETs I thought that it would be best to look at every possibility.
Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
The coupling is the thing that matters the most in a SSTC. Basically you want to get the highest coupling possible without a flash-over. The reason for this is that with a higher coupling, you can use more turns for the same output power, the reactive power decreases and this is easier on the transistors. The inductance here has just a parasitic influence; ideally you want to eliminate the inductance as much as possible.
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SSTC primary turn ratio?
