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Author Topic: Kapanadze Cousin - DALLY FREE ENERGY  (Read 11719046 times)

verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #375 on: October 15, 2012, 10:09:52 AM »
@Verpies; re Itsu's back ringing, the toroid is unloaded, and the other winding open, the field generated there is collapsing back into the primary more than the resistor and other inductances are playing a factor...
The ringing is obvious and to be expected, however the open T1's secondary plays no role in those oscillations because there is no current flowing in it (might as well not be there at all).
I already wrote that the LC tank is formed by the inductance of the primary, the 1nF capacitor, 1kΩ resistor snubber and the CSR.
These LC oscillations occur mainly after the MOSFET stops conducting and do not perturb the measurement of the core's saturation point, which happens during the off→on transition.

Well since no one posted, I can continue...
No one posted because they were sleeping in different time zones!


d3x0r

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #376 on: October 15, 2012, 10:23:26 AM »
{Ya nevermind I didn't say anything useful}

verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #377 on: October 15, 2012, 10:37:52 AM »
is there a huge difference between FJL4315OTU-ND and the KT926?
there appears to be a difference in the base-collector capacitance.

I have a tunable 50ns-anything higher pulse from the logic chips, but that translates into an on time of 2us for the FJL4315... I've tried changing the cap and resistor on the gate, but it's always the same...
The FJL4315 transistor does not have a gate.
Apparently you have no problems turning it on quickly yet you have problems turning it off quickly.
You need much more base pull-down current in order to discharge its CB-C and stop it conducting quickly.

Last night, I was playing with the tuning of the TL494 oscillator, and put a large resistor[from high voltage source to ground] (100k) started with smaller ones (4.7k) but nearly burned it up when I got the primary tuned... the load matters a lot in tuning the primary; but I had a very nice square wave which yields the most power, but it's wasn't best for high voltage...
Did that square wave represented voltage or current in your primary windings?

I cannot advise you without seeing the current waveform in the primary of T2, first.  Last time you couldn't get a clear picture of it because of inductive CSRs.

It seems as insufficient power is transfered from the primaries to the secondaries of T2, most likely because of too few primary turns (resulting in insufficient primary inductance).

Subsequently, multiple insufficient power issues follow throughout the rest of your circuit.

d3x0r

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #378 on: October 15, 2012, 10:57:49 AM »
there appears to be a difference in the base-collector capacitance.
The FJL4315 transistor does not have a gate.
You need much more current to charge its CB-C
Did that square wave represented voltage or current in your primary windings?

I cannot advise you without seeing the current waveform in the primary of T2, first.  Last time you couldn't get a clear picture of it because of inductive CSRs.

It seems as insufficient power is transfered in T2 from the primaries to the secondaries., most likely due to too few primary turns.


It is a measure from collector to emitter of one E13009.  They run very cool in this state.


http://youtu.be/W3aiAaEBg0s


At the top, there is something that shorts or something, that it pops, and recharge a bit. So the wave goes non-square... which is what happens as you start to recharge.... if you drop the frequency, you will get a square again, and as the voltage climbs you can keep the square there by turning up the frequency...

Vasiliy Buslaev

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #379 on: October 15, 2012, 12:15:06 PM »
Hi guys.

Quote
verpies: Apparently you have no problems turning it on quickly yet you have problems turning it off quickly.
You need much more base pull-down current in order to discharge its CB-C and stop it conducting quickly.
Yes!
   
Transistor KT926 is a specially-made pulse transistor.
Tomorrow I will try to lay out a table of reference book. The most important thing to pay attention to on / off time of the transistor.
This is the starting point for the selection of replacement.

Regards
Vasiliy

verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #380 on: October 15, 2012, 01:12:28 PM »
It is a measure from collector to emitter of one E13009.
The measure  from collector to emitter is a voltage measurement and it is not very informative.
Please measure the current waveform to uncover what is going on inside the T2 transformer.

Hoppy

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #381 on: October 15, 2012, 08:24:18 PM »
Whilst working on the Dally circuit today, I made an interesting observation. I connected a 14W rated flouro lamp directly to one of my mains transformer 110v secondary windings via a bridge rectifier and 8uF non-polarised smoothing cap similar to Dally's inverter DC rail. The most efficient operating frequency was around 4.6KHz with the lamp running on a 12.5V supply voltage to the inverter! Coincidence maybe but if the ATX PSU was not connected, the lamp would illuminate and could be maintained illuminated with a hidden secondary 12V battery connection. The supply voltage was 12.4V and power consumption for lamp around 9W. The DC voltage unloaded was 140V and loaded 110V. Because I was using a 230V lamp, to start the lamp, it was necessary to turn the frequency pot until the lamp lights and then adjust for optimum output at lowest current which was 0.74A in my case. A small hidden 12V secondary battery connected to the inverter supply rail somewhere and in parallel to the primary start battery would be all that's needed to maintain sufficient and a 'no-break' power supply to the lamp when the primary battery was removed. Just one connection alteration to the schematic would have been needed to connect one leg of TR2 coil 4 to the bridge rectifier. This would disconnect L1 thus rendering the main coil inoperative. The other leg already routes to the other side of the rectifier via main coil winding L4. The supply to the 150V supply to the neon indicator would still be operative as its powered from the other secondary transformer winding. Its possible that one of the two diodes shown connected to the inverter positive power input terminal block is a blocking diode connected with its anode connected to a secondary battery (via the yellow wire going into the ATX PSU), rather than the loop-back as claimed.

Regards
Hoppy

verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #382 on: October 15, 2012, 10:22:43 PM »
Yes, it is possible.

I'd like to emphasize that any possibility of a hidden battery can be excluded by a simple energy density calculation without even opening "the black box". 
All that is needed is a good wattmeter and a stop-watch.

AFAIK this calculation was not done for the Dally nor Kapanadze devices.

d3x0r

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #383 on: October 15, 2012, 10:56:38 PM »
The measure  from collector to emitter is a voltage measurement and it is not very informative.
Please measure the current waveform to uncover what is going on inside the T2 transformer.


{that over query limit by user 12345 needs to go}


I'll work on a CSR; but can't I just measure between like the + on the cap and the connection past my connector?  It's less than 0.1 ohm but higher than 0...
Also, can't I just measure the voltage drop across the coil?  from + to the collector?


http://www.digikey.com/product-detail/en/2SC3263/2SC3263-ND/3661810


2SC3263?  It's not quite the same....

verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #384 on: October 16, 2012, 12:44:38 AM »
{that over query limit by user 12345 needs to go}
I second that. It looks like a DOS attack

I'll work on a CSR; but can't I just measure between like the + on the cap and the connection past my connector?  It's less than 0.1 ohm but higher than 0...
Maybe, if your scope is sensitive enough.
500mA flowing in 0.1Ω resistor will give you a 50mV signal and in a 0.01Ω resistor it will give you a 5mV signal.
10 inches of 18 AWG-Gauge copper wire (apx. 1mm diameter) or 1 inch of 28 AWG-Gauge copper wire (apx. 0.32mm diameter) both will have the resistance of 0.00532Ω.
500mA flowing in 0.005Ω resistance will give you a 2.5mV signal. 
Can your scope pick that up?
If "yes", it might be noisy and if your scope probe picks up some EMI from nearby wires then the  EMI might overwhelm the signal from the CSR.
But it is worth a try with a straight piece of thin wire.
It is important that this current sensing wire does not heat up too much, because hot wire changes resistance.

Also, can't I just measure the voltage drop across the coil?  from + to the collector?
Absolutely not! 
The coil makes its own voltage. This voltage is not representative of the current flowing in the coil/winding.
Instead, it is representative of the time derivative of current.

verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #385 on: October 16, 2012, 01:17:05 AM »
http://www.digikey.com/product-detail/en/2SC3263/2SC3263-ND/3661810
2SC3263?  It's not quite the same....
It requires over 3A of current to the base in order to fully turn on
It can carry 15A of collector-emitter current when fully turned on.
At 150V a 4A collector current is outside of its Safe Operating Area :(

d3x0r

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #386 on: October 16, 2012, 06:29:56 AM »
Took 11 1.1ohm high precision resistors, and put them all in parallel, and soldered most of the ends together; had no meter that would accurately read that low of a resistance.  Rushed home, put them in-line with the primary toroid coils, connected probes, tuned up the thing to be at a stable point, and then shot some videos.  The first is all dark.  The third really should have been first, and the second...  should still be the second I guess :)


Video 1 (chronilogically last)

video 2

Video 3 (first shot)

I am starting to get concerned about all of this feedback all over the place... especially when connecting L3 and driving it with the pulser... my ground/power all get very noisy... and I think I should introduce some more points with diode isolations


I definatly get a higher [L4] voltage with the nanopulser in addition to the TL949 + L2 resonant coil working.


I think I should tune L2 better to what I'm operating, because it's probably only 60-80% correct if that much.   I did replace the cap with others, and ended up with basically no usable power out.

---
I should also say I have figured a small detail... when I get a nice square wave form on the voltage across the collector-emitter (I keep saying collector base in video by the way), then there is the most gain in power.  To maintain that square wave as my capacitor charges (impedance changes), I have to keep increasing the frequency, up to a point where basically it's square, and at the top of voltage, but; if the voltage drops below that, then that frequency is very bad, and is not a square wave... so tuning up to a certain point above 150, but below the maximum capacity, and even better, then dropping back a little bit will put the 'best' below where you are at, so you can keep the voltage 'a-float' as it is used beyond it's current capacity of filling and drains, then the square wave will form again, and lift the voltage.   
« Last Edit: October 16, 2012, 08:00:27 AM by d3x0r »

verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #387 on: October 16, 2012, 09:33:26 AM »
...put them in-line with the primary toroid coils, connected probes...
Now sth is visible.
I've got 5 questions for you before I analyze your CSR waveforms:
1) Please describe exactly where did you connect your probe to the CSR (e.g. was it connected at points A & B like here).
2) Also, in what direction did you connect your probe to the CSR (where was the ground clip) ?
3) Were any of your channels inverted in the scope's channel setup menu?
4) What is the difference between the yellow and blue trace? e.g.: do they represent signals from 2 different CSRs (one for each half of the primary ?
5) Was any load connected to the secondary windings of T2, when the following snapshot was taken in Video1 at 00:05 ?

d3x0r

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #388 on: October 16, 2012, 10:09:54 AM »
Now sth is visible.
I've got 5 questions for you before I analyze your CSR waveforms:
1) Please describe exactly where did you connect your probe to the CSR (e.g. was it connected at points A & B like here).
2) Also, in what direction did you connect your probe to the CSR (where was the ground clip) ?
3) Were any of your channels inverted in the scope's channel setup menu?
4) What is the difference between the yellow and blue trace? e.g.: do they represent signals from 2 different CSRs (one for each half of the primary ?
5) Was any load connected to the secondary windings of T2, when the following snapshot was taken in Video1 at 00:05 ?


1) there is a U shaped peice of 12 gauge wire, connected to two white terminal connectors, on the other side of these, I removed the primaries, and put in the CSRs, and reconnected the primaries to those.  The  U-wire is attached to a capacitor which is on the 12.7V supply.
2) the ground clips are on the + power side of the resistor, and the probe on the other side, both on the resistor.
3) no
4) one is primary 1 the other is primary 2
5) a bridge rectifier with no ground, only the positive lead going to neons... , and L1 on the other side.


Just managed to tune up to 50volts stable, almost 51... and actually ran less current than when I was at 40 ( turned duty cycle down)... (ya, I know that won't help the ATX supply get 12V, and I don't have current enough for a incandescent bulb)


Oh, I also attached another ground point; I think there should be a ground between TR2, W2 and the low side capacitor; got a much better voltage spike on W2 that way... .that was the other thing that helped get the voltage on L4 up...

Need to rework that other KT926 replacement, put it closer to the part, use stronger wires between bridge rect and neons and that whole subsystem...  I'm only getting like 3 or 4 volt spike out of TR2...


d3x0r

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #389 on: October 17, 2012, 05:41:40 PM »
I wound another toroid with 20 gauge wire for secondaries, and wound 4 coils that are 70 turns in two layers; so I wound two 70 turn coils, then put a layer of tape and wound 2 more 70 turn coils on that; so I could wind 6 turns for the primary... So if this was a transformer from 220->12V and it's used backwards, I'm not sure it's possible to saturate from that 12V side.