Uploaded August 2025 | Updated September 2026, 2 weeks ago
Primary ended up at 3 turns with a 22nF series cap. This one is a bit off from normal tuning but I liked the capacitor and didn't feel like messing around with fine tuning a smaller value. Secondary is 8cm x 4cm 36AWG. 78nF on the drains. Inductors about 7-8uH. I should mention that with this circuit, you may notice what I'm trying to do is get the primary circuit resonant with a certain arc loading. The feedback is going to switch the primary at whatever the secondary resonance is at the time, but if the primary is tuned for some degree of resonance which occurs around the secondary's frequency under max voltage and loading.. Not too dissimilar from just trying to make an SSTC with secondary feedback quasi dual resonant by adding a series cap on the primary.
Instead of wasting SiC fets on this circuit I decided to put 4 of them in an H bridge
Primary ended up at 3 turns with a 22nF series cap. This one is a bit off from normal tuning but I liked the capacitor and didn't feel like messing around with fine tuning a smaller value. Secondary is 8cm x 4cm 36AWG. 78nF on the drains. Inductors about 7-8uH. I should mention that with this circuit, you may notice what I'm trying to do is get the primary circuit resonant with a certain arc loading. The feedback is going to switch the primary at whatever the secondary resonance is at the time, but if the primary is tuned for some degree of resonance which occurs around the secondary's frequency under max voltage and loading.. Not too dissimilar from just trying to make an SSTC with secondary feedback quasi dual resonant by adding a series cap on the primary.
Instead of wasting SiC fets on this circuit I decided to put 4 of them in an H bridge
