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charging my body with a flyback

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Solidacid

Mon Sept 28 2009, 07:05PM

Registered Member #1430 Joined: Sun Apr 06 2008, 11:12AM
Location: Ã…rhus, Denmark
Posts: 102

is it possible?
i have been wanting one of These things for a while but i can't get hold of a negative ion generator.
can i somehow use a flyback to achieve the same effect?
i want to be able to make paper stick to walls and give mild shocks to people with it, but i would prefer not to get burns in the process.

EDIT: Really fixed the link this time.

Proud Mary

Mon Sept 28 2009, 07:14PM

Registered Member #543 Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992

I can't open your link, so it's possible that you mean to charge a VDG belt by spraying it with charge from a metal comb, in which case the rectified output of a flyback would indeed be suitable.

But if you mean to connect yourself directly to a flyback, you will get a very nasty shock

To make your hair stand harmlessly on end, you need to charge your body with static electricity, as from a Van Der Graaf Generator. You need first to stand upon a good insulator, and only then switch on the machine and allow it to charge you up slowly. If you touch it once it is fully charged, you may receive an unpleasant shock, depending on the capacitance of the machine. When you step off the insulator, you are likely to receive a small body shock, as the electricity stored in your body finds its way to earth.

Solidacid

Mon Sept 28 2009, 07:32PM

Registered Member #1430 Joined: Sun Apr 06 2008, 11:12AM
Location: Ã…rhus, Denmark
Posts: 102

" If you connect the high voltage output of a certain negative ion generator to your body, your body will charge up with a low enough current that you don't even feel it."

i do mean connecting myself to a flyback somehow.
on the site i posted, they guy has the negative high voltage wire connected to himself and GND connected to the bottom of his shoe.
this enables him to shock people and charge things with static electricity.

Bjørn

Mon Sept 28 2009, 09:06PM

Registered Member #27 Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058

Your link is still broken, it has an extra character at the end.

It is not the voltage that is the problem but the current. If you manage to avoid passing current through your body you will be fine.

It does not sound like a good idea until you have learned a lot more about electricity.

Solidacid

Tue Sept 29 2009, 10:39AM

Registered Member #1430 Joined: Sun Apr 06 2008, 11:12AM
Location: Ã…rhus, Denmark
Posts: 102

so theoretically i could do it with a flyback if it put out a low enough amperage?

i finally found a source and ordered a negative ion generator.
do you think i will be able to use it?

"This module generates a high negative voltage when powered from a low voltage DC supply. The end of the high voltage lead is connected to a carbon brush head, which emits the negative ions. These are used in some air conditioners and air purification systems. This module may also be suitable as a high voltage supply for electrostatic speakers. The nominal supply voltage for this module is 12VDC but it can be powered from a lower supply voltage. Lower supply voltages would produce lower output voltages. For a graph illustrating how the output voltage varies with the supply voltage click on the JPG button below. Note that an electrostatic voltmeter was used for measuring the high voltage and there may be some variation for different modules. Overall dimensions of the main body are 42x20x25mm and the mounting holes are 47mm apart. Operation 12Vâ€“30mA max. Rated power is 1W, 8KV max. output. Oscillator frequency is 15KHz, produces up to six million ions per cubic centimetre."

Nik

Tue Sept 29 2009, 12:31PM

Registered Member #53 Joined: Thu Feb 09 2006, 04:31AM
Location: Ontario, Canada
Posts: 638

8Kv wont give you lightning fingers. The reason a VDG works is the charge is mechanically brought thought the sphere's electric field on the belt and places on to the sphere. That brings the voltage on the sphere up to the levels required to stand your hair on end or make sparks jump from your fingers. An 8kv ion generator won't do anything. At the absolute best you might get a 1-2mm spark but in all likely hood you will get nothing because you are basically a 6foot tall breakout point leaking the charge away as fast as the ion generator can stick it to you.

Xplorer

Mon Oct 05 2009, 07:06AM

Registered Member #2416 Joined: Sun Oct 04 2009, 04:23AM
Location: Oceanside, CA
Posts: 91

I have one of those little negative ion generators and they're nothing special. However it does work a little but you need to be well isolated. Here is a link to one.

-Tony

DrZoidberg

Mon Oct 05 2009, 05:05PM

Registered Member #350 Joined: Mon Mar 27 2006, 05:14PM
Location:
Posts: 106

You could use a flyback if you drive it in the right way. You need a high output voltage but at the same time a very small output current. Around 1 ÂµA is sufficient to charge you up to more then 30kV despite leakage through the air.
A safer option is a portable VDG like this one

You could also connect 3 of those ion generators to get 24kV. But when you do that each ion generator should be enclosed in a metal box together with the batteries. That prevents the electronics of the ion generator from beeing at a high potential.

Mates

Mon Oct 05 2009, 06:34PM

Registered Member #1025 Joined: Sun Sept 23 2007, 07:53PM
Location: Czech Rep.
Posts: 566

It is just an idea, but you could try using anolog tv or computer screen to charge you up. Just place an alu-foil over the screen and connect it via wire to your body...

Good luck

drake

Tue Oct 06 2009, 12:22AM

Registered Member #2294 Joined: Fri Aug 14 2009, 06:54PM
Location:
Posts: 4

mates-
I would be careful about the whole Al foil on the TV idea. First of all it can make your TV do strange things. I did this when I was maybe 14 with a 32" TV and managed to shock the hell out of myself!

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