Thursday, November 12, 2009

Make a Simple, but, Powerful Air Ionizer!!

Several years ago, I've been playing with some simple "negative ion generator" circuits...
You can easily get the circuit on the internet of course... Such as this...

It uses voltage multiplier a.k.a.  "Cockcroft-Walton Generator" to multiply the voltage to several kilovolts...
I tried that before, and, surprisingly, it does work!! It makes me sleep easier, relaxed, so on and so forth...

But, it's not powerful enough to meet my requirement... I want to ionize the whole air in my entire house!!

So, I come out with more powerful design...
Very little parts are needed...

In this project, I use:

555-astable circuit

The circuit is pretty simple, but, very effective... All you have to do is tune it to your flyback transformer resonant frequency... To indicate that you achieved resonance, the transistor is cold to touch and it does not draw high current but yet, it produce high output...

The Flyback Transformer

As you may noticed, I also wind a new primary on the ferrite-core... Mine is about 8 turns...
I get this for free from my friend's old monitor... (Thanks Salahudeen!!)
In this case, the transformer produce DC HV output...
The positive is the one which have the rubber cap, while the negative, you have the find it on your own which pin is the correct one...

The NPN Transistor...

It may looks funny, I submerged the transistor in ATF-oil... Although the transistor is cold to touch, I believe it's safer to do it this way... It really saved my transistors from frequent death... Lol!!

The Negative Ion Emmiter Design

This is the simplest design that I can think of... I use a small hex driver as the negative pole, and I use an old hard disk platter as the positive pole...
The hex driver is been positioned at the center of the platter's hole...
Small purple arc also can being seen...


I use 3 batteries as the PSU... First battery is used to drive the 555-timer circuit, while other two batteries is been configured in 24V to run the flyback windings...


The result are quite impressive... It worked better than I thought... Here's several pictures of it:

3 amps at 24V max...

Corona discharge at the center emmiter...

Another corona stream shot...

Old tissue proving the strong air flow... It's propellerless!!
Ha!! Better than Dyson's design...

The breeze can be feel at over 12 inches!! It smell fresh too...

In future, I would like to make it in a bigger scale... Hopefully, I can get a strong wind as normal table fan does... Its very quite too... And, cheaper than Dyson's fan... Hahaha!!


Anonymous said...

Corona with metal emitter means it produces also ozone.

You should use carbon instead..

Also professional ionizers use sharp metal needles instead this kind of design.. and they also say those get worse after worn out -so there is reason to use _sharp_ needles.

Afdhal Atiff Tan said...

Thanks for the comment!
Yup, you're right, the emitter does produce ozone.
I believe the commercial degrade cause they using cheap metal.
This can easily fix by using stainless steel as the emitter.

Didn't using carbon could cause carbon monoxide formation?

See my latest post for the video of it working...

Afdhal Atiff Tan said...

Sorry to say this...
Spammers comment will be removed is any...

Afdhal Atiff Tan said...

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Go play somewhere else!
Your spams on my site wont let you get any profit! Not even a dime!

Please, stop posting all of these shits!

Anonymous said...

Hello there! I just was about to start building a ionizer with capacitors and diodes (30 of each), but it just happens that I DO HAVE an old CRT monitor in the attic!
Even an old japanese one ,that it's been "forgotten " there for some time now...
Can you make some sort of "tutorial" on in wich you describe every step in detail?
It's my first construction of this kind and I really don't know from where, with what or wich to start...
I also thought of galvanized tin (about 2 square meters) for directing the negative ions towards those damm chemtrails!
I've read about this in a small experiment done by a spanish guy with even a smaller negative ionizer powered from the car battery and two 35mm copper pipes ,2 meters long that in under 60 minutes cleared the sky of that ugly chemtrails!
Gave me "kinky thoughts" of an "negative ions CANON" that could make my sky BLUER THAN EVER!
I also have 2 induction coils from some motorcycle!
They are good but only old...
I hope you can answer me and give some "advices" towards creating that big "bad-ass" negative ion "canon"!
I am not in a hurry; I like to do things slow but good!
Thank you and nice blog!

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This comment has been removed by a blog administrator.
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