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Author Topic: Kapanadze Cousin - DALLY FREE ENERGY  (Read 6257028 times)

Offline apecore

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16860 on: March 09, 2017, 07:10:07 AM »
  That is correct,  the duty cycle does nothing. The frequency trim pot does work as expected. 
   Should I change it as you suggested?
  Here is the circuit that I've been working on.  Can it be modified? As it's not too late to do so.
  l'll remove it,  once you see it.  As it's too large.
  Thanks again.

Nickz,
This circuit os working....i only use a 10k pot for D/C.

Free Energy | searching for free energy and discussing free energy

Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16860 on: March 09, 2017, 07:10:07 AM »

Offline Hoppy

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16861 on: March 09, 2017, 01:13:19 PM »
  That is correct,  the duty cycle does nothing. The frequency trim pot does work as expected. 
   Should I change it as you suggested?
  Here is the circuit that I've been working on.  Can it be modified? As it's not too late to do so.
  l'll remove it,  once you see it.  As it's too large.
  Thanks again.

Nick,

I've never had a problem using pin4 DTC for duty control. Try linking out the 12K resistor. You should get up to 45% with a fairly linear response between 0V and around 3.35V with 20% duty at the middle of the voltage range. There is a better way of doing it as Verpies suggests but to avoid messy changes to your board, I suggest you try and get the pin 4 duty control working properly.

Offline NickZ

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16862 on: March 09, 2017, 03:56:51 PM »
  That is correct,  the duty cycle does nothing. The frequency trim pot does work as expected. 
   Should I change it as you suggested?
  Here is the circuit that I've been working on.  Can it be modified? As it's not too late to do so.
  l'll remove it,  once you see it.  As it's too large.
  Thanks again.

  I can't remove the schematic, as the modify button is not showing up.  Please help,  so that the page is not messed up.
  I'll modify the duty cycle controller.

Free Energy | searching for free energy and discussing free energy

Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16862 on: March 09, 2017, 03:56:51 PM »
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Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16863 on: March 09, 2017, 05:35:28 PM »
Should I change it as you suggested?
It's up to you but I can assure you that changes made to the TL494 controls will not affect the MO of the device.
In this video you can see how the TL494 works when it is controlled this way.

P.S.
If I were you, I'd connect pins 8,11,12 to the positive 12V rail of the power supply with separate traces/wires.
Also, for added speed and stability, I'd delete these 1K5 resistors connected to pins 9 & 10 and alter the neighboring 1K resistors to 330 Ohm.

Offline NickZ

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16864 on: March 10, 2017, 03:36:52 AM »
   OK, first of all, sorry for messing up the thread. I can't remove or replace the schematic. Maybe the admin will do it.
   Makes me wonder what other errors that schematic may have, also.

   I have been very busy lately with work, 10 hours per day, but I will remove the 12k resistor and hopefully that will take care of the problem with the duty cycle part of the circuit. I can also replace the 20k trimpot, with a 10k pot, if needed, as apecore is using, by itself, without the other 12k resistor.
   I am using 3 watt 460 ohm resistors in the 9 and 10 pins, looks like some other diagrams are showing 10 ohm resistors, instead. And I am also using 1k to ground, after the 460 ohm resistors. 
  Thanks again for your help guys. Hopefully that will take care of the duty cycle issue, and I can continue installing the fet drivers and snubbers.

Free Energy | searching for free energy and discussing free energy

Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16864 on: March 10, 2017, 03:36:52 AM »
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Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16865 on: March 10, 2017, 09:53:29 AM »
Makes me wonder what other errors that schematic may have, also.
Don't think about them as errors - just another way to do things.

I am using 3 watt 460 ohm resistors in the 9 and 10 pins, looks like some other diagrams are showing 10 ohm resistors, instead. And I am also using 1k to ground, after the 460 ohm resistors.
So you can move these 460Ω resistors in place of the 1K resistors to ground and connect pins 9 & 10 of the TL494 directly to the TC44220s. 
These resistors to ground can go as low as 48Ω but it is very important that these resistors are not wirewound or inductive in any way.

Whoever was designing this circuit was trying to unnecessarily make a protective voltage divider for the TC4420 inputs without realizing that these inputs can easily tolerate any input voltage between -5V and VDD ...and more.

The DC CHARACTERISTICS Table of the TC4220 clearly states:
"Input Voltage Range     VIN  –5   —  VDD+0.3    V"

The resistors to ground are needed as pull-downs by the transistors inside the TL494 acting as emitter followers. 
These transistors can handle 250mA and with a 12V supply the 460Ω resistors to ground will allow only 26mA to flow, so there is no problem with making them 460Ω ...hell, they could even go as low as 48Ω and the TL494 could handle them.

Offline AlienGrey

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16866 on: March 10, 2017, 07:05:54 PM »

Free Energy | searching for free energy and discussing free energy

Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16866 on: March 10, 2017, 07:05:54 PM »
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Offline Ed morbus

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16867 on: March 10, 2017, 09:12:43 PM »
Is this real

Offline AlienGrey

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16868 on: March 10, 2017, 11:03:34 PM »
Is this real
to be honest i don't think those two mess about with BS!

Did you notice the type of EHT TX they were using 'no embedded EHT rect.
but i haven't tried it my self but i have seen florescent tubes planted end on under pillons in a field and they were lit up, it was quite amusing i can tell you that, but i wouldn't want to live under them my self.

If your interested i suggest you try it but please make another tread ;)

Offline NickZ

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16869 on: March 11, 2017, 06:43:50 AM »
Nick,

I've never had a problem using pin4 DTC for duty control. Try linking out the 12K resistor. You should get up to 45% with a fairly linear response between 0V and around 3.35V with 20% duty at the middle of the voltage range. There is a better way of doing it as Verpies suggests but to avoid messy changes to your board, I suggest you try and get the pin 4 duty control working properly.

   That did the trick alright, and now the duty cycle controller does work, by removing the 12k resistor. To a degree.
A 10k pot would possibly work even better, like apecore is using.
   I will also change the 1000 ohm resistor to something like a 100 ohm, to ground, and run the TLs output direct to the fet drivers,  as Verpies suggested,  tomorrow.

Offline NickZ

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16870 on: March 14, 2017, 09:21:51 PM »
   To see my last video posted today concerning my TL 494 circuit, please look for my videos on YouTube.com by my name, Nick Zec.
And look for it yourselves, as I can't post a link to it from my android tablet or phone. My regular PC is not working.
   Any ideas or advice is always welcome.

Offline ramset

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16871 on: March 14, 2017, 10:41:43 PM »
Nick
here is your general link
https://www.youtube.com/channel/UChwfL5U16oZ20H6zuW-LIHg

thanks for all you do

respectfully
Chet k

Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16872 on: March 15, 2017, 07:46:35 AM »
To see my last video posted today concerning my TL 494 circuit, please look for my videos on YouTube.com ...
Your scope is out of focus (twist the focus knob).
The signal is flickering not because of a bad signal at low duty cycles but because your scope channel or trigger coupling is not set to DC or your trigger filter or level is misadjusted.

Offline NickZ

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16873 on: March 15, 2017, 03:16:15 PM »
   Verpies.
    The focus knob does not work, but I managed to be able to take the duty cycle down to nothing without the flickering.
   If anyone knows how to fix the blurry focus on the scope, please let me know.
   I'll continue building the fet driver circuit today.

Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #16874 on: March 15, 2017, 03:57:16 PM »
If anyone knows how to fix the blurry focus on the scope, please let me know.
90% of the time it is the focus potentiometer. Just replace it.

I'll continue building the fet driver circuit today.
Show us both TL494 outputs on the scope

 

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