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Author Topic: Kapanadze Cousin - DALLY FREE ENERGY  (Read 6861317 times)

Offline Vortex1

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #105 on: September 27, 2012, 06:24:36 PM »
The diode Kd203 in the prior schematic is not connected in avalanche mode.

Also the supply is only 150 volts, not nearly enough to avalanche a 420/600 volt device.

The KT926 is the more likely avalanche candidate, possibly being triggered by base drive.

Probably the KT926 is just used in common emitter amplifier mode, being driven by logic gate, after all, it is a 200 Volt device.

Free Energy | searching for free energy and discussing free energy

Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #105 on: September 27, 2012, 06:24:36 PM »

Offline Hoppy

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #106 on: September 27, 2012, 07:46:09 PM »
The diode Kd203 in the prior schematic is not connected in avalanche mode.

Also the supply is only 150 volts, not nearly enough to avalanche a 420/600 volt device.

The KT926 is the more likely avalanche candidate, possibly being triggered by base drive.

Probably the KT926 is just used in common emitter amplifier mode, being driven by logic gate, after all, it is a 200 Volt device.

Vortex,

The pulse transformer TR1 is step-up 6T:12T, so the voltage across the rectifier should be well in excess of 150V?

Hoppy

Offline Vortex1

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #107 on: September 27, 2012, 09:29:45 PM »
Vortex,

The pulse transformer TR1 is step-up 6T:12T, so the voltage across the rectifier should be well in excess of 150V?

Hoppy

The diode on the W1 side of Tr1 is certainly not connected in avalanche mode, and the diode on the W2 side is still well within the rating even with 1:2 step up of the 150 volt supply.

My guess is that these diodes are placed to clamp negative ringing of inductance since there is not nearly enough voltage available for avalanche (>600 V).

Free Energy | searching for free energy and discussing free energy

Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #107 on: September 27, 2012, 09:29:45 PM »
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Offline Black_Bird

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #108 on: September 27, 2012, 09:42:10 PM »
@hoppy, @vortex1
Probably the diode is there to clamp the negative going pulse that is reflected back from the shorted coaxial cable, and also to clamp the negative ringing from the inductor, keeping the input pulse always positive.

I was not aware of the DSRD technique below. Obviously,  what I said above makes little sense in view of the DSRDs.
« Last Edit: September 28, 2012, 12:42:45 AM by Black_Bird »

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Offline Hoppy

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #109 on: September 27, 2012, 10:27:43 PM »
The diode on the W1 side of Tr1 is certainly not connected in avalanche mode, and the diode on the W2 side is still well within the rating even with 1:2 step up of the 150 volt supply.

My guess is that these diodes are placed to clamp negative ringing of inductance since there is not nearly enough voltage available for avalanche (>600 V).

I will need to check this when I power up coil. Is the KD203 fast enough to clamp the ringing? The pulse rate is around 450KHz with the specified 1nF VCO timing caps - changed from 100nF on latest schematic posted. With 100nf caps, the VCO cab be adjusted to run at the magic 4.6KHz. What value did Dally use - I suspect 100nF.

Hoppy

Free Energy | searching for free energy and discussing free energy

Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #109 on: September 27, 2012, 10:27:43 PM »
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Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #110 on: September 27, 2012, 10:49:45 PM »
The diode Kd203 in the prior schematic is not connected in avalanche mode.
Also the supply is only 150 volts, not nearly enough to avalanche a 420/600 volt device.
Yes, 150V is insufficient to avalanche a 420/600V diode, even after stepping up this voltage by the Tr1 transformer to 300V.

However I don't think these diodes work in avalanche mode.
I think that these diodes function in the DSRD (ДДРВ) mode, thus the high avalanche voltage is not required.
However DSRDs require a sub-0.5μs input pulse to produce a 1ns pulse.
DSRDs have better performance than avalanche transistors and diodes as the can produce picosecond pulses at kV amplitudes, see here.

More info on DSRDs can be read in the 3 PDFs attached to Reply #93.

Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #111 on: September 27, 2012, 10:59:46 PM »
Does any one of you know where I can find a good diagram/plot of the E & M fields inside a cylindrical coaxial cable.  Standing wave preferably...
Something like this.

Free Energy | searching for free energy and discussing free energy

Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #111 on: September 27, 2012, 10:59:46 PM »
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Offline Hoppy

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #112 on: September 27, 2012, 11:11:43 PM »
Yes, 150V is insufficient to avalanche a 420/600V diode, even after stepping up this voltage by the Tr1 transformer to 300V.

However I don't think these diodes work in avalanche mode.
I think that these diodes function in the DSRD (ДДРВ) mode, thus the high avalanche voltage is not required.
However DSRDs require a sub-0.5μs input pulse to produce a 1ns pulse.

More info on DSRDs can be read in the 3 PDFs attached to Reply #93.

Have just got around to reading this and it now makes sense why the VCO timing caps were reduced.

Hoppy

Offline Hoppy

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #113 on: September 27, 2012, 11:25:26 PM »

DSRDs have better performance than avalanche transistors and diodes as the can produce picosecond pulses at kV amplitudes, see here.

More info on DSRDs can be read in the 3 PDFs attached to Reply #93.

So this means that using ordinary diodes is a waste of time for this mode of operation, unless by fluke Dally's build was 'rough' enough to produce sufficient and short enough HV 'hash' pulses??

Hoppy

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #113 on: September 27, 2012, 11:25:26 PM »
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Offline Hoppy

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #114 on: September 27, 2012, 11:46:57 PM »
Does any one of you know where I can find a good diagram/plot of the E & M fields inside a cylindrical coaxial cable.  Standing wave preferably...
Something like this.

Is the attached any help?

Regards
Hoppy

Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #115 on: September 28, 2012, 12:06:07 AM »
Is the attached any help?
Nope. No nice coaxial field plot, but thanks.

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #115 on: September 28, 2012, 12:06:07 AM »
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Offline lz2sdc

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #116 on: September 28, 2012, 01:14:49 AM »
Hi all!
My name is Stelian and greet from Bulgaria!
I would first like to apologize for my bad English, I use Google Translate, because that's my little difficult course some major parts of the problems and things that are spoken.

Yes, I Dally free energy generator and follow with great interest the development of the Russian forum and here the work of Itsu! Gathering information and will soon begin work on the project.

Itsu, I watched your video and as far as I understand, you have a problem with the output format of the TL494 and the benefit of the MOSFET.

I am a radio amateur, I have some experience in the high frequencies. What I see in Itsu, that there is an error in design construction of push pull, the foot of the IRF740.
Itsu, using a common heat sink for both MOSFET transistor If the radiator is not grounded to the total mass between the two drain of field transistors, parasitic capacitance occurs that changes the operation of transistors. This subsequently leads to changes in the output format. In practice, you create a parallel minimum capacity of the primary winding of the output transformer. This led to the corresponding resonance in a certain period of time, the final step is prone to slight excitation, causing it to operate as a generator, and hence the temptation to sinusoidal output signal. This can lead to instability in the load and even excitation, in which you will lose one of the two MOSFET.

My advice to Itsu:
1. If you looked carefully setting of Dally, you will see that he pitched two bipolar transistors of different radiators. So both have a common drain parasitic capacitance through the radiator. Here, see this picture.
http://img0.liveinternet.ru/images/attach/c/6/91/467/91467648_large_100_6329.JPG

2. It's nice to put a resistor of 10 to 100 ohms, each successive gate as an improved scheme. These resistors help to eliminate parasitic oscillations that can occur between the driver and final stage, a much higher frequency. This improves the stability of the foot.

3. I saw in your second video that you put 9V stabilizer TL494, which is good because it prevents him from powerful harmonic pulses of the output stage. That would really improve performance, but you need to put one before the ferrite stabilizer 10-100μH choke by inserting between him and stabilizer capacitors from 10nf, 100nf i100μF. As far as I saw you put a capacitor after the stabilizer. This should completely eliminate spurious pulses from the output stage to the TL494.

4. It would be nice to completely duplicate the work of Dally (if I'm not mistaken, he says Leonid) and then make improvements to increase the efficiency of the generator. Dally uses bipolar transistors and even some older items he did without this generator oscilloscope and frequency meter. He obviously has a very good sense of setting such a technique. This is a rare gift from God!

Itsu, I watched your video for the coil. Your coil differs in structure and number of turns, the original of Dally. Here is his coil, which has fewer coils than yours.
http://www.liveinternet.ru/users/edward_lee/post237839624/

I think for starters, you need to follow everything in the work of Dally. I notice that in the Russian forum has many experts who do things as in the original scheme. As far as I understand, Dally, they will first clarify things transformer TL494.

Thank you very much that you share your work with us all. I wish you much success and I hope everyone can make this generator replication and increase efficiency. :)

Greetings, Stelian

Offline d3x0r

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #117 on: September 28, 2012, 07:49:33 AM »
I got some parts!  I missed ordering 400V 10A diodes :(  I'm gonna use some 12kV 3A for a bit... the pulse can't be THAT big :)


I built the TL949; I misread the characters нф
 and пф  ... wish there was a better resolution image. 


нф = nF
пф = pF
мкф = 'microfarads' (by google translate)  so uF


so I had my capacitors all 1000x smaller so I had the huge frequencies... it wasn't until I got to the nano pulser that it really became an issue.


So in the nanopulser, the variable resistor should control frequency; it goes to two 2k resistors that go to caps to charge them until some n4148 start conducting and triggering a high on the pulse.   It apparently does a flip-flop sort of motion, but I think each side has a capacitor and resistor that should match for the high frequency and low frequency to match; however that's not the final output.  The second chip takes a Not of the input signal plus the input signal delayed on the trailing side slightly, the delay is a fixed resistor and capacitor on DD1 chip ( pin3-pin5) ... a bigger capictor gives a wider time where the input signal is high and the capacitor is discharging.  The resistor isn't a significant part I think; since the capacitor is charged the whole time the input is high by the input....


I ran the nanopulser as a circuit itself without the final power transistor; I had a huge hard time seeing the pulse I wanted.  I saw a ghost of a pulse that was only a 50% drop; 5V -> 2.7V ... a low is a maximum of 2.1V... so the output wasn't triggering at all.  Part of this was because of the scope probes, and I looked further upstream and downstream and started seeing things; of course the biggest problem was all the caps I had pf where it should have been nf... I though 'hmm 1pf capacitor... shouldn't I just like stick a couple inchhes of wire in the hole?... so then I went to the translator to recheck what I thought and learned.  So increasing all the capacitances 1000x started giving me enough skew that I could see things, and enough pulse widge because it was very high frequency.  The native range of this is something like 50hz, and I have no idea how wide the pulse is.  I can generate down to less than 20ns, but it starts looking sine-like, a wider pulse has a flatter top.  (changing capacitor on DD1 pin 5 Dally2012.jpg) 1.5nf gives about 30-50 ns pulse...


This is all fine and well; Although I have some hesitation; on the schematic it indicates that the input clock for DD1 can come from one of three places.  I'm currently on pin 8.  The signal on this side has some issues.  There is a fuzzy logic point for about 2ms before the signal really flips... which shows on the other side as noise between 2.1 and 2.3 volts (high enough to be a high and low enough to be a low)... 2ms of noise before the ns pulse... that's like 1,000,000 times too long to have a signal.  I think I need to move to a different side.  I tracked the noise back to the point that the capacitors are filled and the zeners start conducting... it's a rising pulse so the capacitor is filling more than it is drained by the partial reversal, so eventually it fully avalanches and the pulse is changed.  the 1n4148's that i have are actually kind of small... and knowing that 10 manufacturers of the same part yield different results, how do I fix the collapse?   I should include a scope shot, but my camera is dead at this time;


It's all connected in the circuit so I could have the high voltage so see what that would do; the high voltage supply capacitor off the rectifier of the lower part is drained entirely and takes a while to rebuild; Not getting the voltage required at this time.  Having updated my capacitors I can tune slighly under 4khz and somewhat above 5khz.... the duty cycle I'm having issues with I guess; it's only going to like 25-35% duty cycle; but can tune it for a high voltage point, but that only gets me like 80 volts; need to work on that toroid some.  When I wound it I wound both secondaries together instead of being sepearted, becuase there would be a high voltage and low voltage side together; and it's not KV in this, but I dunno, that would arc in some cases... I guess that the capacitance effect end-to-end is alright.   I had another toroid that I wound with (a long wire) but folded the wire and fed it as 16 fold, then cut the ends, and soldered the ends into a continuous coil.  but when I attached high voltage to that, it arced right away.... I dunno I have a few different windings already to try; these same cores used in a joule-theif configuration generated 260V+ easy (a clock chip is easier to tune for frequency... well maybe it's just the base resistance and now that I have some good pots :) :) )...




Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #118 on: September 28, 2012, 09:29:36 AM »
Itsu, I watched your video and as far as I understand, you have a problem with the output format of the TL494 and the benefit of the MOSFET.
He does not have a problem with the Gate voltage of the MOSFETs.  He has a problem with the Drain voltage during "dead time" (when both MOSFETs are off) and during the 2nd half of the pulse (when the other MOSFET is conducting).

If the radiator is not grounded to the total mass between the two drain of field transistors...
I can't understand that. Bad translation.
If "mass" = ground, in your language, then:
The drains are not connected to the ground. What is this ground between the two drains?  The two MOSFET sources are connected to common ground, but the drains are not...

Offline itsu

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #119 on: September 28, 2012, 10:00:30 AM »
Hi all!
My name is Stelian and greet from Bulgaria!



Hi Stelian, always nice to meet a fellow radio amateur.
Your English (via Google translate) is good to follow mostly, almost no problem there.

I do have a problem with the Main generator yes, and working closely with "verpies" to get it solved.
As he says, i have problems during specific times which introduce spikes of up to 500V on the drain.

The both MOSFETs are isolated from the heathsink which is connected to ground.

Thanks for all your advices and suggestions, i will take a close look to them

Regards and   --... ...--    Itsu.

 

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