How to Make a Negative Ion air ionizer

Step 12: Final Assembly

The reason I dont bother with any fuses in the live leg of the AC input, is that you can get badly shocked from the HV side of things and the fuse is not even going to blow, let alone protect you.

I noticed that the cap array has a tendency to rotate inside the pvc tube so I glued some locating sections inside to stop it from doing so.

The important thing to remember is to discharge the unit if you want to work on it again, short the neutral grid to the HV side via the 10Meg resistors to avoid stressing any components.

DON'T FORGET to short out the 220v ac input once you have pulled it out of the wall socket, the caps still carry enough of a charge to wake you up rather rudely.

My future TO DO list might include:

• upgrading the HV pins in the full wave version to CF tips
• change the neutral wired grid in the half wave version to proper earth/ground grid, which just means I'll need a 3 core cable for the input instead of the present twin-flex.

Comments

[leaualorin]

Hey Peter , could galvanized tin be used for the HIGH VOLTAGE "pins"?
I want an " negative ion canon" against these damm chemtrails!
Thank you kindly!
:-)

[Xolin]

"Chemtrails"?!? Oh, goodness; why don't you use it against pixies and dragons too? Their about as real...

[imbigman]

I already do! Thats why you never see them. Don't forget about Gnomes and Gargoles also.

[Xolin]

Oh, I see.

That's why I also never see elves or leprechauns either...

Well done keeping the population of non-existent creatures down. :-)

[imbigman]

Hey... Just doing what i can, for all of humanity.

I must say I am getting real tired of stepping in pixie dust.... Just what is that stuff anyway... Maybe I don't want to know. :-)

[Xolin]

LOL :-)

[yaly]

you can add a relay so when you plug it the relay turns on to connect the power lines to the capacitors and when you unplug it it shorts out the capacitors.

[Treknology]

The carbon fiber is a brilliant idea. I remain concerned about the Earth being used as part of the circuit. If your house is wired properly, there should be no measurable voltage between Neutral and Earth--if there is, something is seriously amiss. The Earth is there for safety, any current leakage to earth should trigger a breaker on your switchboard, even as minute as generated in this device. It also means that if this device continues to function while plugged in, then any metal/earthed appliance in your house could also bite.

[petercd]

I took apart my outside electrical box to check how things are wired before the cable enters the house, in other words straight from the power company before my indoor distribution board. The black neutral is clamped to the armour sheath of the power cable and the green earth/ground wire from the outdoor ground spike. There is no voltage between earth and neutral as you rightly point out, however with my device connected indoors, no voltages are measured between the now disconnected ground spike and "house earth" nor does my earth leakage trip. Im guessing its because there is no current flow only ion flow. If for some reason the ground becomes isolated from the physical ground spike of even the electrically connected neutral, then a dangerous condition could exist whereby you could receive a nasty shock from the now live floating ground.

[Skyriam]

He's using the earth wire just to attract negative ions to it and make it easier to distribute them, no current is going to it. You can make it without the earth attraction.

[Treknology]

If you look closely at the wiring of the "full wave" version, the connections are Active to Earth and Neutral to Earth. Safety is paramount in these sorts of projects, and I recommended elsewhere that a full-wave bridge rectifier be used across Active and Neutral with the "half wave" voltage muliplier. Using the Earth as a collector plate is not an issue. Having the Earth connected into the voltage multiplier IS an issue.

[Skyriam]

You're right, thought about the half wave version. So how do you make it full wave without earth connection?

[Treknology]

Using the voltage multiplier directly from the AC is dumping half of every "wave" cycle. Use a full-wave bridge rectifier (the four diodes arranged in a square) so that both waves are flipped to the "same side" and then use the "half wave" version of the multiplier to process what is now a "double" half wave, i.e., unregulated DC. My father was an electrical inspector and safety officer--I grew up connecting 240V cable before I could do long-division, so SAFETY is always foremost on my mind.