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!!
Bwahahaha!!

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...

The PSU



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 RESULTS!!

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!!


Wednesday, October 21, 2009

Latest Fan Design - It's Bladeless!!

Several days ago, I'm researching so hard on energy efficient fan. Then, I accidently bump into this vid:



Well, it does impress me... I mean, look at its design, its so simple and very 'modern' looking fan.
He claim that the air sucked-in being amplified by x15 times through Venturi and Bernoulli principles...

I'm interested to have one, but, it seems like it's too overpriced... The cheapest is about $300 dollars.
To me, air-cond is much cheaper than the fan.

Since that's the case, it looks like I have to 'homebrew' it... Hehehe...
Here's my first plan:



See?? It's bladeless too!!
So, as usual, tell me what ya think!!

Saturday, October 17, 2009

My Very First Plasma Speaker!!

Hi y'all!!
Just wanna share my barely working plasma speaker...
It's based on the simple 555 astable circuit...
I really mean it!! The circuit is so damn simple to build...

Here's the vid:





Currently, the speaker volume is so slow... I'm still finding the cause of it...
But, the sound quality is so good, crystal clear!!

Tell me what ya think!!

Monday, September 28, 2009

My Latest Capacitive Battery Desulphator Project!!

In my "Mini-Lab", I have vast amount of heavily-sulphated batteries...
Most of them were from old UPS and discarded LA-Batteries...
I'm intended to reuse those batteries for energy storage purposes...

So, instead of throw it away, I decided to research on the internet for any good mod to do...
I found hell lot of interesting stuffs!! To name the few, it's including Bedini Motor, Inductive-Desulphator, Resistive-Desulphator (Thanks Anwar.Sheikh!!), EDTA stuffs, Epsom salt, Pulse Charger and bunch of other excellent informations...

I also searched very-hardly about Capacitive-Desulphator...
Unfortunately, not even single page come out...
So, I decided to design it by myself...

Here's are several photos:









Here's the scope shot...



Currently, the circuit working perfectly...
Even with just 1-day test-run, the circuit shows obvious effect on the batteries...

I'll keep y'all updated later, and, I will post the circuit soon after I done drawing it...

Tell me what ya think!!