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Overunity Machines Forum



Kapanadze Cousin - DALLY FREE ENERGY

Started by 27Bubba, September 18, 2012, 02:17:22 PM

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0 Members and 139 Guests are viewing this topic.

itsu


I redid the MOSFET / drive PCB and put both MOSFETs with its driver on a small PCB
MOSFET's used are IRFP4668's and drivers ucc37322 non-inverting.

I used the whole battery of snubber components and now the MOSFET's behave more as they should be.

I have a nice resonance sine wave on the 2x 25 turns grenade coil, and 50V dc on the 28 turns yoke secondary after rectifying.
I can use this 50V dc for my nano-pulser, or directly feed the kacher primary with it.

Screenshot 1 shows the MOSFET's signals:

yellow MOSFET 1 gate
purple MOSFET 1 drain

blue   MOSFET 2 gate
green  MOSFET 2 drain

MOSFET's are not heating up, amps pulled totally 2.5A @ 12.5V

screenshot 2 is the signal on the 2x25 turns grenade in resonance
screenshot 3 is the signal on the main grenade (2x 60W/220V bulbs attached faintly glowing, one side to ground).

Video here:  https://www.youtube.com/watch?v=9LNsvDhGIVE&feature=youtu.be

Regards Itsu

Hoppy

Quote from: itsu on October 14, 2014, 03:24:44 PM
I redid the MOSFET / drive PCB and put both MOSFETs with its driver on a small PCB
MOSFET's used are IRFP4668's and drivers ucc37322 non-inverting.

I used the whole battery of snubber components and now the MOSFET's behave more as they should be.

I have a nice resonance sine wave on the 2x 25 turns grenade coil, and 50V dc on the 28 turns yoke secondary after rectifying.
I can use this 50V dc for my nano-pulser, or directly feed the kacher primary with it.

Screenshot 1 shows the MOSFET's signals:

yellow MOSFET 1 gate
purple MOSFET 1 drain

blue   MOSFET 2 gate
green  MOSFET 2 drain

MOSFET's are not heating up, amps pulled totally 2.5A @ 12.5V

screenshot 2 is the signal on the 2x25 turns grenade in resonance
screenshot 3 is the signal on the main grenade (2x 60W/220V bulbs attached faintly glowing, one side to ground).

Video here:  https://www.youtube.com/watch?v=9LNsvDhGIVE&feature=youtu.be

Regards Itsu


Nice tidy work Itsu.  :)


Yes, its time to get my PWM onto a PCB. My drivers are too far away from the IGBT's. What snubber arrangement did you end up using?


A comment caught my eye from a post some time back made by T1000. He listed five comments including this one: -



"The control circuit module should switch on Tesla coil on positive peak of sine wave for very short cycle for generating high voltage spike and this spike should be filtered for a few nano-seconds spike length by choke between coil and antenna."
The way this is written says to me that the ferrite choke produces the nano-second pulse and may explain why we see this dropped when Ruslan introduced the solid state nano generator which we have been working on. If this is the case, then its worth leaving out the nano generator, at least initially and trying to get the system running on the choke. Its more than likely that Kapanadze did not use any sophisticated nano circuitry of the type we are working with.


Like Mag, I've ordered a couple of PIO caps from Bulgaria on ebay.

itsu

Quote from: Hoppy on October 14, 2014, 04:23:37 PM

Nice tidy work Itsu.  :)


Yes, its time to get my PWM onto a PCB. My drivers are too far away from the IGBT's. What snubber arrangement did you end up using?


A comment caught my eye from a post some time back made by T1000. He listed five comments including this one: -



"The control circuit module should switch on Tesla coil on positive peak of sine wave for very short cycle for generating high voltage spike and this spike should be filtered for a few nano-seconds spike length by choke between coil and antenna."
The way this is written says to me that the ferrite choke produces the nano-second pulse and may explain why we see this dropped when Ruslan introduced the solid state nano generator which we have been working on. If this is the case, then its worth leaving out the nano generator, at least initially and trying to get the system running on the choke. Its more than likely that Kapanadze did not use any sophisticated nano circuitry of the type we are working with.


Like Mag, I've ordered a couple of PIO caps from Bulgaria on ebay.

Hoppy, thanks,   

snubber used is basically what i showed here:

http://www.overunity.com/12736/kapanadze-cousin-dally-free-energy/msg419485/#msg419485

changes compared to this are:

# NO schottky across source to drains (did not improve)
# MOSFETs are IRFP4668's
# 1n4007's are NOT reversed and are UF4007's
# C12 are 47nF

I have to sleep over your statement (from T1000) in red  :o

Regards Itsu

NickZ

  Itsu:
  Always a pleasure to see your work. Nice!!!
  One question. Did you connect the three turn coil's output to the 28 turn coil's output, (small jumper) and to earth ground, as shown in Ruslan"s diagram?
   Remember that without the earth ground to the coils, the circuit did not work properly for Ruslan.

   I can't measure the voltage/amps with my meter on the output side of either of the secondary output coils on the yoke. I wish I could, so that I can compare the output from my circuit.
  I should be done with the grenade coil connections to the yoke tonight, but I'm having some problems with my kacher circuit now, which I'm trying to correct.  As the kacher circuit is not oscillating now that I changed its transistor, for some reason.  I may have shorted something out by accident. I could use a 2n3055, but I'm all out of them at the moment, so I'll try another transistor type for now.

Enjoykin