- Jan 1, 1970
...But...given the size that "taser" type circuits can be shrunk to (and
the truth that they are pretty much exactly what you are building, no
matter how uncomfortable that makes you), no real reason to run HV along
There's real reason. All the devices I've used to date to generate the required spark also put out a tremendous amount of interference. I learned the hard way that the spark generator could not be anywhere near the processorsthat control the device, no matter how much shielding I tried to add. The field generated immediately knocks the processors for a loop, and while theway the circuit is designed, that immediately shuts down the spark, I decided I didn't even want a possible risk of the circuit somehow locking up with the spark stuck on. So the spark generator stays a few feet away from the rest of the device, and since I don't want a HV source exposed, that means a backpack, several layers of shielding, special venting so the battery gasses never meet the HV source, etc. Yes, that gave me the problem of constructing a cable that could safely carry voltage, but I have a working design for that and I've used it without incident quite a number of times.
he issue I'm having, and would like help on, is that I've been unable to find any resource online that will teach me how to reliably generate 25-30kV at very low ma and 40Hz and aren't so affected by capacitance. I have failed solutions, like the ZVS oscillator, which do not work. I need something that does. I do not want to use a taser because they are designed to generate a lower frequency which is deliberately disruptive to the human body - it's not just voltage that matters - and if someone DOES manage to squeeze his finger into the arc I would rather he got a skin burn and a painful but forgettable lesson, than have him incapacitated on the floor in front of dozens of people, and planning a lawsuit.
Please let's assume that I want to live and am going to continue to take excessive precautions to insure that I do. I take responsibility for my own safety.
As to the legality of the RF output - folk, this device is used at Steampunk conventions. It does put out RF, but you'd be hard pressed to find it among the Jacob ladders and suchlike toys that are staples at these events. Mine is at least somewhat shielded. I won't be the FCC's first interviewee.