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Author Topic: Kapanadze Cousin - DALLY FREE ENERGY  (Read 11829650 times)

itsu

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12135 on: February 14, 2016, 10:12:25 PM »
Quote from: Jeg on February 14, 2016, 09:23:14 PM
Itsu, in addition the diode in parallel with the resistance at your snubber, is upside down compares to akula. Check this in case..

Jeg,

i remember we had this discussion before, i think Hoppy did mention that a few years ago, it was of no influence if i remember correctly.
Anyway, i changed them around, but the signals / behaviour stays the same.

Thanks,  itsu
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verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12136 on: February 14, 2016, 10:33:42 PM »
Quote from: itsu on February 14, 2016, 12:12:42 PM
Also puzzeled about the gate signals which seems to "lag" its drain signal, how can that be?
I am puzzeled about the drain starting signal which starts high, then falls of to the normal 48V. What is causing that?
I think it is caused by improper output signal configuration of the TL494.

If you are really using the UCC37322 drivers then the TL494 (U3) should be connected to them like this:
U3.pin9 --> U2.pin2
U2.pin2 --> 100Ω resistor --> GND
U3.pin10 --> U1.pin2
U1.pin2 --> 100Ω resistor --> GND
U3.pin8 --> Vcc
U3.pin11 --> Vcc
U3.pin13 --> U3.pin14


However, if you are using the UCC37321 drivers then the TL494 (U3) should be connected to them like this:
U3.pin8 --> U2.pin2
U2.pin2 --> 100Ω resistor --> Vcc
U3.pin11 --> U1.pin2
U1.pin2 --> 100Ω resistor --> Vcc
U3.pin9 --> GND
U3.pin10 --> GND
U3.pin13 --> U3.pin14


P.S.
I think the UCC37321 has a little better dynamic specs than the UCC37322.   I did not check if they cost the same, though.
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itsu

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12137 on: February 14, 2016, 10:58:46 PM »

verpies,

I am 99.9% sure i have 2x UCC37322 (non inverting) but i cannot check the markings anymore as they are soldered directly onto the MOSFETs
However, checking the input signal on pins 2 and the output signal on pins 6/7 shows they are similar, so not inverted.

I do have the below mentioned connections for UCC37322, only difference is that i use 1K resistors (so my earlier diagram has an error in U3 pin11, which should be U3 pin 10)
 
Quote
If you are really using the UCC37322 drivers then the TL494 (U3) should be connected to them like this:
U3.pin9 --> U2.pin2
U3.pin9 --> 100Ω resistor --> GND
U3.pin10 --> U1.pin2
U3.pin10 --> 100Ω resistor --> GND
U3.pin8 --> Vcc
U3.pin11 --> Vcc
U3.pin13 --> U3.pin14

Itsu
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skywalker66

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12138 on: February 15, 2016, 12:03:36 AM »
Itsu,

if you disconnect snubbers or/and the 2 tvs (D7, D8) the lag between gate and drain keep the same ?
Usually snubbers are placed across coils and much less sourse-drain of mosfets.   
Try at first disconnecting the 2 tvs and note the difference, and then snubbers.
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verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12139 on: February 15, 2016, 12:38:00 AM »
Quote from: skywalker66 on February 14, 2016, 08:45:46 PM
It seems you got an error in your setup. Your 2 x12 turns primaries look like being in bucking mode, which is wrong.
I don't know what you mean by "bucking" since the these two halves of the primary winding are not supposed to be driven both ON at the same time, thus the fluxes generated by these windings cannot buck.

Anyway, since the goal is to produce bipolar alternating flux in the core, then these primary winding halves are supposed to be connected in such manner that when the 1st MOSFET is ON, then the flux in the core is generated in one direction and when the 2nd MOSFET is ON, then the flux in the core is generated in the other direction. 
An alternating flux, generates an AC across a resistive load connected to the secondary winding.

The black dots A & B, on the diagram below, illustrate the proper split-primary winding connections according to the dot convention.
The orange parts of winding W1 (dots C & D) as well as C3/D3 and C4/D4 are components of the optional lossless clamps.

Quote from: itsu on February 14, 2016, 01:31:46 PM
As I want to stay as close to the original plans as possible, ...
...and that is the only reason not to use the lossless clamps which are more effective and more efficient than RCD snubbers.
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Void

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12140 on: February 15, 2016, 07:04:41 AM »
Hey guys. Can anyone direct me to a schematic for a circuit that has been tried and tested which
will trigger off a pulse waveform, such as an output from the TL494, and which will create another pulse train
of the same frequency with a continuously adjustable phase delay, allowing setting the phase delay
angle from 0 to 90 degrees?
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Jeg

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12141 on: February 15, 2016, 08:04:54 AM »
http://overunity.com/12736/kapanadze-cousin-dally-free-energy/msg465146/#msg465146

Hi Void, just an idea for triggering you.
Take a look at what i had used in the past for an experiment of mine. The one turn takes the trigger signal from yoke, tl072 shifts the phase, and the pulse train is produced at 4066. When 4066 takes the triggering pulse, opens the door and HF pulses are passing from my fg to the mosfet driver. Hope it will give you an idea
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Void

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12142 on: February 15, 2016, 08:37:12 AM »
Quote from: Jeg on February 15, 2016, 08:04:54 AM
http://overunity.com/12736/kapanadze-cousin-dally-free-energy/msg465146/#msg465146

Hi Void, just an idea for triggering you.
Take a look at what i had used in the past for an experiment of mine. The one turn takes the trigger signal from yoke, tl072 shifts the phase, and the pulse train is produced at 4066. When 4066 takes the triggering pulse, opens the door and HF pulses are passing from my fg to the mosfet driver. Hope it will give you an idea

Hi Jeg. Thanks, I will take a look. It sounds like you didn't have full phase shift from 0 to 90 degrees with this circuit?

Maybe someone else can point to another circuit that is tested that will trigger off the output of the TL494 or similar,
and which gives a full 0 to 90 degrees phase delay adjustment at the same frequency. I think this little bit of circuitry is
probably an essential component to have working well.

Jeg, what is this 'blue box' circuit you are testing?
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Jeg

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12143 on: February 15, 2016, 08:49:14 AM »
If you see at Allega's circuit for Ruslan replication, the blue box incorporates a way of synchronizing the peak of current inside the inductor loop with a high frequency component. It takes a pulse out of the tl494, and makes a trigger pulse adjustable per phase and width, to activate a mosfet with a tesla coil secondary.
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Void

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12144 on: February 15, 2016, 08:57:02 AM »
Quote from: Jeg on February 15, 2016, 08:49:14 AM
If you see at Allega's circuit for Ruslan replication, the blue box incorporates a way of synchronizing the peak of current inside the inductor loop with a high frequency component. It takes a pulse out of the tl494, and makes a trigger pulse adjustable per phase and width, to activate a mosfet with a tesla coil secondary.

Hi Jeg. Thanks! It sounds like this is the type of circuit I am looking for.
Have you tested this circuit yet? Does it give you a full 0 to 90 degrees phase shift?
If so, I will go ahead and order the parts... :)
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Jeg

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12145 on: February 15, 2016, 09:07:25 AM »
Quote from: Void on February 15, 2016, 08:57:02 AM
Hi Jeg. Thanks! It sounds like this is the type of circuit I am looking for.
Have you tested this circuit yet? Does it give you a full 0 to 90 degrees phase shift?
If so, I will go ahead and order the parts... :)

Phase shifting degrees, depend on the frequency that you work with. At 17Khz in which i use it, gives much more than 90 degrees shifting. Just change the cap of 3,3nF to a 47nF one (as Itsu had spot it) and you are ready to go. Yes i test it before two days up to the output of 74hc132. Works fine!

ps. It uses an inverting mosfet driver..
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Void

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12146 on: February 15, 2016, 09:19:25 AM »
Quote from: Jeg on February 15, 2016, 09:07:25 AM
Phase shifting depends on the frequency that you work with. At 17Khz in which i use it, gives much more than 90 degrees shifting. Just change the cap of 3,3nF to a 47nF one (as Itsu had spot it) and you are ready to go. Yes i test it before two days up to the output of 74hc132. Works fine!

Awesome. Are you testing Allega's PWM driver circuit with PLL as well?
I guess that's called the green box circuit? :)
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Jeg

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12147 on: February 15, 2016, 09:31:35 AM »
Quote from: Void on February 15, 2016, 09:19:25 AM
Awesome. Are you testing Allega's PWM driver circuit with PLL as well?
I guess that's called the green box circuit? :)

hehe yes the green box! No, I don't use Allega's pll as our beta tester (Itsu) wasn't happy with. Instead he drove it straight out of 494 which made it simpler and easier to use. 
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Void

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12148 on: February 15, 2016, 09:52:37 AM »
Quote from: Jeg on February 15, 2016, 09:31:35 AM
hehe yes the green box! No, I don't use Allega's pll as our beta tester (Itsu) wasn't happy with. Instead he drove it straight out of 494 which made it simpler and easier to use.

Thanks Jeg. That's good to know. I will probably go with the TL494 driver circuit as well.
For now however I will be testing with just the phase shift circuit. Want to run some basic
tests with some simpler setups to see if I can figure out what kicks in the OU. :)
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itsu

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12149 on: February 15, 2016, 10:27:31 AM »
Quote from: skywalker66 on February 15, 2016, 12:03:36 AM
Itsu,

if you disconnect snubbers or/and the 2 tvs (D7, D8) the lag between gate and drain keep the same ?
Usually snubbers are placed across coils and much less sourse-drain of mosfets.   
Try at first disconnecting the 2 tvs and note the difference, and then snubbers.

Hi Sky,

you are probably right, i too think that something in this snubber setup is causing this, i will try to find out by eliminating one by one.

Itsu
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