Kapanadze Cousin - DALLY FREE ENERGY

[Hoppy]

Nick,

Thanks for posting a description and photos of your current setup. You still have a couple of iffy (dry) looking solder joints. Completely remove the solder and clean the wires if necessary before re-soldering. Also check your battery by applying say a 12V / 20W halogen lamp load directly across your fully charged battery for a few minutes, whilst measuring that the terminal voltage is not dropping below around 12.4V before stabilising. All diodes also need to be tested. Also, get rid of those tie-wraps and screw the mosfets down onto the heat sinks.

[Jeg]

Hey guys, well done for your building progress. I managed to light a bulb of 50w at about 80 percent full bright without the use of katcher. Yesterday all day I was trimming my katcher but at the end I messed up. The reason was that i was driving my katcher straight from the battery which is Wrong! At the end, when I changed battery to  a fresher one, frequency completely changed! Use regulation for your katcher to save time. When voltage supply changes frequency drifts.. On the other hand, we can take an advantage of it. With power sup variation we can tune to our katcher's freq...

[itsu]

So any suggestions are welcome what is causing this, and if i should order some inverting ucc37321's or if there is another solution or problem to solve.

What if i change the outputs on the TL494 from the present "emitter-follower configuration" to the "common-emitter configuration", see excerpt from the TL494 data sheet.

That will reverse the present input to the MOSFET drivers and thus the output.

Regards itsu

[zcsaba77]

Hi Jeg,


pipe is 5cm diameter, wire including insulation is 3.3mm.

Be aware that its very hard if not impossible to wire the next layer exactly on top of the lower layer, so normally what has happened is
that the next layer wire lies inbetween the lower layer wires     
I measured the 6 layers at the left side of my coil to be 17.5mm thick, so 2.9mm each layer.


Regards Itsu

Guys!
Why are you not built count meter just need 1 pedometer, 1 microswitch and 1 disk with 318mm diameter, 1 turn will be (1m) 1 step on pedometer!

[magpwr]

Hi Magpwr,

i did see your bug report  , but did not necessarily agree with all those, so i decided to build the original first and see what will happen.
I would then incorperate your changes to see if it would indeed improve/got working.

But do you not agree that the signal from point A is reversed?

Thanks,  regards Itsu

hi itsu,

It's hard for me to explain this part as i ever worked with TL494 but instead i'm using SG2525 or UCC3825 for more than 200khz.

Just try to visualize this if TL494 is producing 20% duty cycle as an example.Both signal output of TL494 will produce duty signal at 20% but one of the channel will trigger at negative half of waveform.If A is on B is off or vice versa.

Worst-Imagine this if you take a 20% duty cycle from Channel A and Channel B from output of TL494 and connect it to a inverting IGBT driver UCC37321P or TC4421.
The output would be invert of A and B and it would show as 80% duty cycle in your scope because the output is inverted.

In short 20% duty 1" or on state would appear as (20% off state "0" at output and 80% as on state) for the inverting IGBT driver version.

This is 80% on state would be nice to create fireworks on the mosfet due to excessive current flow.
(In another words inverting IGBT driver is out of the equation.This inverting version isn't suited for this circuit)
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If you talking about deriving the signal at point A of nanosecond generator if this needs to be obtained from Channel A or Channel B output of TL494.

This part is still a mystery to me but can be solved since there is only 3 possible combination to apply signal for nano generator-
1)Obtain from Channel A of TL494
2)Obtain from Channel B of TL494

3)This 3rd possibility which i found out recently  through this attached circuit diagram and i have circled in red.
   There is 2 diode each is connected to the IR2XXX driver.

It is like connecting 2 diodes to both Channel A and Channel B of TL494 (It's like base on "OR" gate (1 ,0 =1) or (0 , 1 = 1) or (1,1) = 1) and linking to nanosecond generator via R1 and R2 resistor.

For everyone please refer to nanogenerator fix version 4.0 base on my previous attachment.

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This of PWM circuit photo was extracted from the Russian forum where Ruslan/Akula was discussed

I have lost which page was this pull from without wasting too much time and who was the creator for this circuit which i am suspecting Ruslan-

I need you or anyone whom have large screen to zoom image by 200...250%.

I need to show there is 3 I/C i can see 1st MC34063 (This is definitely used in older 12volt supply to boost voltage to 18volts as support by TC44xx driver ,One of the IGBT driver TC4420(Non inverting 6Amps version) and PWM I/C: SG3525AN faintly
(There is nothing much to talk about this circuit as this is easy to understand what it is doing and why i/c is there)