Computer Control of a PWM design. work in progress.

[sigmaX]

Hi!

I yet have to reread the whole posting in this topic, but I wanted to tell all you guys that you got in me another guy jumping in I am building my HHO Generator to place in my car, and I will create a PWM circuit, (I think I feel bold enough to do it).

I am a self tought electronics buff, I do play with microprocessors (pics), digital data transmision (wireless), SSR (I think that solid state relays can be used to create the DC pulses ?), etc.

I also bought an ELM323 interfase chip to also connect my "thingy" into the OBDII of the car, so I can actually show real time info on gas usage / Mileage, and also I would like to "play" with the oxygen sensors, as I am suspecting that HHO gas into the air intake is not the only thing to accomplish but also you need to lie the ECU (onboard computer that manages the whole motor combustion orchestra), that it needs less gas.

Anyway, Maybe things I typed are already addressed, but I had a chance to read the post on the fly. Later today I will post again. Now I am gone to buy the Stainless steel plates necessary to start playing around

Regards,

Enrique

[z.monkey]

Howdy Y'all

Didn't really plan to turn the HHO into a business, engineering is my business, HHO might be a product.  I pulled the old mower out of the shed and it managed to start after setting for 6 years.  Now all we have to do is modify it to run with HHO.  We haven't decided which system to use yet.  I am not one to just copy something.  I want to make something unique, and industrial grade.  You can make inductors, check out these links.

http://en.wikipedia.org/wiki/Inductance
http://en.wikipedia.org/wiki/Inductor
http://www.coilcraft.com/
http://www.overunity.com/index.php/topic,4255.0.html

I have been building transformers and inductors for years.  You see the giant coil on the SPR.  There are 7 internal coils and the secondary is the big one on the outside.  It is 4.5 inches in diameter, 8.25 inches long, has around 680 windings, and the inductance is 2.8 Henrys.  There is only one layer of windings.  You could make one that is a lot more compact by using a solid core instead of a tube, and making more layers of windings.  A good way to make a custom shaped slug is to mix iron filings and epoxy, then pour that into a mold and then you have a custom ferrite to wind the wire on.  When the epoxy is cures remove the mold and wrap the windings directly on to the slug.  If you want to make easy inductors you can use nails, or bolts.  Making the basic inductors is fairly easy.  But is does get complicated when you want to do specialized things, like radio coils, or microwave, but for power and audio frequencies the coils are pretty simple.  Look at the coils on the Bicycle Wheel Alternator.

http://www.overunity.com/index.php/topic,4135.0.html

These are 1/2 inch bolts, some fender washers, a piece of 1/2 inside diameter iron tubing, a lock washer and a nut.  Take the bolt, slip on a fender washer, then the iron tube, then another fender washer, then the lock washer and a nut.  Tighten that up and you have an iron spool.  I put the threaded end of the bolt in a cordless drill chuck so I can spin the spool with little effort.  Secure a piece of wire onto the spool with some electrical tape.  Take the spool of wire an support through its center hole so that it is free to move.  Slowly turn on the drill and allow the wire to wind on to the iron spool you made.  It takes some practice to make a nice neat coil but it is worth it.  A neat coil will have a better Q than a sloppy mess of a coil.  Better Q means more inductance.

If you are building the D14 that I am thinking of your can probably use a EI core step down transformer that you can get at Radio Hut.  I think that Meyers had made his own toroidal core transformer.

In order for the tubes in the electrolyzer to work reliably you can't use water that has minerals in it.  I recommend using distilled water, or deionized water (pure water) in the electrolyzer.  If the water has particulates in it they will build up on the electrodes and need frequent cleaning.  To clean the tubular electrodes you can use a bottle brush, but this requires frequent disassembly of the electrolyzer.  I was thinking that a recirculator could be used to filter the water in the electrolyzer chamber.  There is a drain at the bottom of the tank.  The drain goes to a filter, then to a pump, and the output of the pump goes back into the electrolyzer tank.  In close proximity to the electrolyzer element there is a submersible ultrasonic transducer which would clean the electrodes using sound waves continuously.  The crud that is shaken off the electrodes would travel through the drain and get stuck in the filter.  You would have to change the filter every once in a while.

Blessed Be Brothers...

[markolonius]

Hey all!

in this post http://www.overunity.com/index.php/topic,4805.0.html we came up with the idea of using a computer sound card output.  so far i have a signal generator generating a square wave at whatever frequency i want.  i can hear the signal. my problem is how do i apply that signal to my electrode terminals.  i'm not very educated in these electronics since i'm only a very early college student, but learning quick.  maybe someone could give me some insight and a solution to my problem.  connecting the positive to one terminal and the negative to another terminal has no effect on the water.  I've tried to read the voltage of the signal, but get nothing. 

[sigmaX]

Hi Markolonius!

It might happen that your sound card (onboard or not) is more intelligent than that!

It is usual nowadays to find audio cards that allow you to plug microphone, earphone, or amplifier in ANY of its plugs, as it has the necessary intelligence to detect WHAT you are plugging into WHICH socket, due to it?s different resisting / impedance, whatever.

If you have one of such cards, with autosensing, maybe the electrodes do not fit in any on the preopogrammed sensing parameters, and thus the sound card configures it as nothing / microphone, whatever.

Regards,
Enrique

[z.monkey]

Howdy Markolonius,

You can use a power amplifier, like a car audio booster, to take the audio output from the computer and amplify it to drive and electrolyzer.  Hook up the audio output from the computer to the audio input on the amplifier.  You will need a decent 12 volt power supply to power the amplifier.  Take the output terminals on the amplifier and hook them up to the electrolyzer, like the electrolyzer is a speaker.  This will allow you to experiment with different sounds on the electrolyzer.  Make sure that your power amplifier has overdrive protection (fuse, circuit breaker, etc.) so you don't melt anything.

If you are feeling really adventurous make your own amplifier, I do.  I have a theory that a dissonant chord is going to produce a disruptive wave that will work well to break the molecular bond of the H2O molecule and produce HHO.  Try a harmonious chord first, and then a dissonant chord and see what the difference is.  Then try multiple frequencies.  Then try Heavy Metal Music.

Keep me posted...

Blessed Be Brothers...