mribble
Newbie level 3
I'm using a neon power supply like like this: https://www.amazing1.com/profneon2.htm
The 10 kV goes through a simple voltage doubler (2 caps and 2 diodes) and then through a 1 M-ohm resistor to limit current. I'm trying to charge a large 40 kV cap.
The problem seems to be that the Neon power supply shuts itself off after briefly changing the capacitor (it's on for maybe 1-2 seconds). I measure the voltage of the cap and it's around 10kV (much sort of the 25 kV I'm looking for). The cap also discharges fairly quickly so I need to keep power going to it.
These neon transformers have all sorts of auto shut-off features for neon tubes. I suspect the problem is that the power supply is detecting something that wouldn't be correct when lighting neon tubes and turns itself off. Does anyone know what this might be and how to work around it?
One guess I have is that a neon tube probably maxes out the current of the current limited power supply. Since my circuit does not, maybe the power supply shuts itself off. But this is just a guess and I'm hoping someone with more experience in high voltage power supplies might have more educated guesses.
Thanks!
The 10 kV goes through a simple voltage doubler (2 caps and 2 diodes) and then through a 1 M-ohm resistor to limit current. I'm trying to charge a large 40 kV cap.
The problem seems to be that the Neon power supply shuts itself off after briefly changing the capacitor (it's on for maybe 1-2 seconds). I measure the voltage of the cap and it's around 10kV (much sort of the 25 kV I'm looking for). The cap also discharges fairly quickly so I need to keep power going to it.
These neon transformers have all sorts of auto shut-off features for neon tubes. I suspect the problem is that the power supply is detecting something that wouldn't be correct when lighting neon tubes and turns itself off. Does anyone know what this might be and how to work around it?
One guess I have is that a neon tube probably maxes out the current of the current limited power supply. Since my circuit does not, maybe the power supply shuts itself off. But this is just a guess and I'm hoping someone with more experience in high voltage power supplies might have more educated guesses.
Thanks!
