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Author Topic: Akula0083 30 Watt Self Running Generator.  (Read 1269818 times)

magpwr

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #600 on: April 10, 2014, 04:12:00 PM »
You made a mistake.   Pins 2 & 3 are not connected directly to the cap.  They are connected directly only to the pot.

hi verpies,

I have amended the drawing.

4069 pin 2&3 is connected together.

Looks like this slow oscillator is running and acting as trigger on it's own without any feedback from main oscillator.

There is some possibility the frequency may drift over time maybe due to component aging or temperature variation. :)

The creator of the circuit might have been lucky to get it right.

 
   




verpies

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #601 on: April 10, 2014, 05:25:39 PM »
Looks like this slow oscillator is running and acting as trigger on it's own without any feedback from main oscillator.
There is some possibility the frequency may drift over time maybe due to component aging or temperature variation. :)
Yes and three unused CMOS inputs are free floating.  They should be grounded (as shown below) or those three inverters will oscillate spuriously ...but maybe that's the key to OU ;)

conico

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #602 on: April 10, 2014, 06:36:03 PM »

Ed morbus

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TinselKoala

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #604 on: April 10, 2014, 07:01:58 PM »
Yes and three unused CMOS inputs are free floating.  They should be grounded (as shown below) or those three inverters will oscillate spuriously ...but maybe that's the key to OU ;)
Maybe it is.    ;)
Actually an "unused" CMOS input can be configured to pick up the electric field from, eg, a HV secondary coil, and then the output of the gate can be used in a feedback circuit to make the whole affair seek its natural resonant frequency. I don't know if that's what is happening here, but it's a technique used by SSTC builders.
For example:

MenofFather

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #605 on: April 10, 2014, 08:34:22 PM »

conico

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #606 on: April 10, 2014, 08:41:22 PM »
which is the secondary coil?
do not tell me,  that screw in the middle of the transformer is the secondary coil !?

MenofFather

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #607 on: April 10, 2014, 09:56:08 PM »
which is the secondary coil?
do not tell me,  that screw in the middle of the transformer is the secondary coil !?
Here elemated wires is 4 seems going from that transformer or maybe more. look at 2:40. In right side is two small holes sims, were going two seems elemanated wires. In other side is same... [size=78%]https://www.youtube.com/watch?v=juwm_W5-qAM[/size]

verpies

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #608 on: April 10, 2014, 10:20:52 PM »
MenofFather is correct about two enameled wires in one white fiberglass sheathing.

adriangray

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #609 on: April 10, 2014, 11:28:12 PM »
Looking at this NB ENF circuit ist what is happening is the MC34063 switches on andthe 1000uf is charged on a sort of linear slope the cd 4069 works as a timer for the energy to light the LED when the fly back time is exusted the mos fet turns on and dumps any exess energy and it starts again, you can see this going on in the guys scope trace, the nergy is switched between the caps and the core. Thats my opinion and i'm sticking to it. But dont blame me if i'm wrong ok.
 

magpwr

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #610 on: April 11, 2014, 12:24:58 AM »
Yes and three unused CMOS inputs are free floating.  They should be grounded (as shown below) or those three inverters will oscillate spuriously ...but maybe that's the key to OU ;)


hi verpies,

There are 2 copper wires(thick&thin) going into the coil from the right side of circuit where there is transistor.
The transistor is connected to the thicker wire.

I will need to double check if the thin wire is connected to pin 1 or pin 7 of the 8 pin I/C.

It's was late last night i can't continue ......

I will post more updates later today once i'm back from work,need to leave home soon.Thanks goodness it's Friday....

verpies

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #611 on: April 11, 2014, 01:01:19 AM »
Actually an "unused" CMOS input can be configured to pick up the electric field from, eg, a HV secondary coil, and then the output of the gate can be used in a feedback circuit to make the whole affair seek its natural resonant frequency. I don't know if that's what is happening here,
It is not, because outputs of those inverters (pins 8, 10, 12) are not used.

...but it's a technique used by SSTC builders.
That's a neat application of HiZ inputs.
For a while now, I was musing about using this method in a rationometric configuration, where one E-field sensor is positioned in the middle of the long HV secondary coil of a SSTC and another is positioned at the end of it. 
The ratio between their signals would be maximized when a perfect standing wave is formed in the long HV secondary coil of a SSTC.
This would have the advantage of being more immune to noise as this rationometric E-sensor pair is not sensitive to common mode noise.

To protect the receiver/control circuitry from HV hazard of close proximity to the secondary coil, I was thinking about implementing these localized E-field sensors as neon bulbs attached to ends of a optical fiber (potted in black epoxy of course) since neon bulbs do not require a power supply (unlike CMOS ICs).

Do you think neon bulbs would make localized E-sensors that are fast enough to generate pulse-by-pulse feedback signals?

TinselKoala

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #612 on: April 11, 2014, 05:46:13 AM »
I was thinking of the Akula diagram that has the 5 "no input" gates and their LEDs outlined in blue.


The NE-2 idea is pretty neat. I don't know if the NE2 plasma glow is fast enough to produce discrete "flashes" at, say, 1 MHz or whatever high speed is necessary for a pulse-by-pulse feedback system, but I can probably find out. Certainly they do light up in response to 4MHz or greater but I don't know if they go "dark" between those fast pulses! They probably do, though.



scratchrobot

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #613 on: April 11, 2014, 07:54:31 AM »
https://www.youtube.com/watch?v=0_8OlH4kkKM
https://www.youtube.com/watch?v=juwm_W5-qAM
https://www.youtube.com/watch?v=gWjs0-WCMzs


Looks to me in the last video he is jumpstarting the device by holding some iron or magnet near hex inverter, also in second video he is playing with something near device, looks like a bold?.


MenofFather

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #614 on: April 11, 2014, 05:36:35 PM »

Looks to me in the last video he is jumpstarting the device by holding some iron or magnet near hex inverter, also in second video he is playing with something near device, looks like a bold?.
In his divice no magnets.