Imhotep's Radiant Oscillator Video

[Bodkins]

Im still on the single wire charging people...
YouTube - 52 bodkins
Nice work Lidmotor
Happy New Year everyone.

[Inquorate]

Relay driving transistor

Hi all, just messing around with stuff, nice little circuit.. I forgot to show this in the video but transistor is switching half an amp... YouTube - Inquorate 20

More to follow

[ren]

@Ren --The Darlington pair works well in this application. My little cheap 2n2222s are still running the CFl well into the second day. The NiMH AA battery pack is hanging in there. I might get one more day out of it. I built a second identical system yesterday but added high ohm pots into the circuit to bias the first 2n2222. This made a huge difference in being able to get the most brightness for the least amount of power.
Happy New Year ---Everyone

Lidmotor

Nice Lid. So did the resistance increase brightness AND amp draw?

@ Carl. For the two ignition coils to be out of phase with each other you would probably need a flip flop style circuit. Ive been trying to gather parts for one using PWM. Gotoluc's circuit is like this I think. It flips polarity as well, but that is just a matter of how it is configured. We should be trying that on the coil as well I think

[Inquorate]

Neon lit on open circuit

YouTube - Inquorate 21

[Lidmotor]

Tuning the Darlington pair

Nice Lid. So did the resistance increase brightness AND amp draw?

@ Carl. For the two ignition coils to be out of phase with each other you would probably need a flip flop style circuit. Ive been trying to gather parts for one using PWM. Gotoluc's circuit is like this I think. It flips polarity as well, but that is just a matter of how it is configured. We should be trying that on the coil as well I think

@Ren. The preliminary test showed that yes the brightness goes up with the amp draw but there is better control of it now. Reminds me of tuning an SSG for the sweet spot. The little 2222s are very sensitive to "abuse" so you have to be careful. The step down switching adjustable voltage regulator is a critical part of this low power circuit. It is the 90% efficient "electric carburetor" that has let me run this for days on those AA batteries. I have it leaned out to 5v at 20 ma with the light still on.

Lidmotor

[Mutten]

was playing around yesterday showing my Girlfriend what we've been working on and I stumbled on something interesting.


I had a single wire lighting 2 CFLs, with a diode, and a neon after the diode. Went something like this

Coil HV out --- CFL - CFL -- |< 1n4004 diode - 110 ac neon --

was testing spark gap distance coming off the HV to the neg battery terminal and the spark was about 2-3mm.

I added a 1n4004 diode after the neon and the spark gap increased to about 6mm.

Coil HV out --- CFL - CFL -- |< 1n4004 diode - 110 ac neon -- |< 1n4004 diode

Whats interesting is that the current should only be flowing back to the HV side of the coil because of the diodes, unless I'm missing something.

One other note, the spark gap with no diode at the end was producing some fierce RFI/EM radiation cause my computer speakers 4 meters away were picking up a huge ammount of static. With the addition of the diode after the neon and sparking back to neg battery terminal there was very little RFI, but the gap doubled in size.

Haven't had much time, gonna try and make a video soon.

[Bodkins]

In the last video i charge a cap then dump it into the battery.
It was going for a two day then i remove the cap and shorted it.
The cap jumped back to 10.48volt.
I connected it to a ground on the negative and left it for two hours now its at 15.01 volt.



Mutten interesting stuff

[Mutten]

forgot to mention I fiddled around with another method of charging batteries off the HV out.

I took some 16 or 18 gauge solid core copper wire and looped it around about 8 times on itself in a 4 cm circle, sort of like a choke. Around that I wrapped some 26 gauge enameled copper wire about 200 turns 90 degrees to the current in the 8 turns.

I Put it before the CFLs and connected the HV to my heating duct system in my apartment.

from the 200 turns, I had 2 1n4004 diodes


6v neg battery teriminal --- diode >| ----weird coil ---- diode >| positive battery terminal.

Depending on the frequency I was getting anywhere from 4-12v dc on the battery. I was using a modified 555 circuit pulsing a 2n3055 and a 25ohm reostat to control the voltage going to charge battery.

gotta head to work I'll try to take some pics later.

[ren]

Interesting Mutten, sounds like a second transformer after the first

Any low voltage diode on the HV side will just act like a conductor, both ways. By low voltage I mean anything under 10kv. HV will by pass these diode, which is why Bodkins was able to fill a cap with diodes pointing away from the cap IMO.

[Inquorate]

@bodkins cap auto charge

I wrote up a theory on dmonarch's radiant matter, page 3 that offers a pretty good explanation for why your cap spontaneously charged bodkins. :-)

[sucahyo]

alternative method to reduce spark

So many interesting things, I am glad I join this thread .

In case anyone still have problem with original design where big spark making the relay stuck. You can reduce the spark by adding the load. I use computer power supply, when the spark got big, the power supply stop it self. When I add many load in series the spark become smaller and the computer power supply do not stop it self anymore.

I series the charged battery with a HHO cell and normal computer fan. It is interesting that the back EMF have enough power to turn the fan too.

I use 9 ohm coil, where Imhotep use 2 ohm coil. I think the spark when using car coil should be much bigger. I think anyone using car coil should series more load to reduce spark.

Here is the video:
YouTube - charging battery, powering HHO cell and powering fan using Imhotep radiant oscillator

Just thinking, maybe with lower coil resistance, higher voltage will be generated. To reduce spark, the load must have higher resistance?

[Lidmotor]

One Darlington TIP 120 CFL Driver

I had a Darlington transistor on hand (Radio Shack TIP 120) so I replaced the 2n2222s with just that one transistor. It worked. I also used a 1 meg ohm pot between the base and collector and that worked to. I connected the Darlington base to a piece of foil around the ignition coil to get a signal and connected the loose end of the CFL to earth ground.

YouTube - One Darlington Transistor CFL Driver


Lidmotor

[Bodkins]

Interesting Mutten, sounds like a second transformer after the first

Any low voltage diode on the HV side will just act like a conductor, both ways. By low voltage I mean anything under 10kv. HV will by pass these diode, which is why Bodkins was able to fill a cap with diodes pointing away from the cap IMO.

HV diodes
YouTube - Bodkins 35 diode ground.AVI

[Inquorate]

Circuit for driving two coils

They are 180 degrees out of phase in this circuit:

RMCybernetics - DIY Homemade Ignition Coil Driver

[sucahyo]

Better way to reduce spark

I can get spark reduced more by routing the negative part to different direction. This modification also allow my power supply to do less self shut off.

Wether this modification has better efficiency than original design is still undecided. This will need to be experimented more. I got mixed result depend on load.

This also a concept proof that power spike resulted from relay switching can not be stop by a mere diode. The diode is SB1040CT. Maybe it also proof that simple circuit like this can create HV strong enough to bypass the diode, and this happen on low voltage side since I do not connect my secondary to anything (I use transformer).