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Author Topic: RESONANCE EFFECTS FOR EVERYONE TO SHARE  (Read 298237 times)

CRANKYpants

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #225 on: December 25, 2008, 10:21:25 PM »
Thank you Thane for the praises and for sharing some of my Guru's (Teacher's) teachings.
I had not seen this video until now.
Thank you for sharing.
Luc

MY BROTHER FROM ANOTHER MOTHER,

WATCHING YOU MAGNETIZE PEOPLE AND THE INFLUX OF HELP AND RESOURCES JUST REMINDED ME OF BABA BUILDING HIS FIRST HOSPITAL WITH ISAAC TIGRETT IN INDIA - I HOPE IT CONTINUES FOR YOU ALL...

CHEERS
Thane

Groundloop

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #226 on: December 25, 2008, 11:22:33 PM »
@gotoluc,

It is very difficult for me to guess what is wrong with your circuit. But I will suggest also checking
the two diodes that are used on the IR2103 drivers. One way to insulate the problem is by
removing all the transistors and IR2103s. Then you connect the 12 volt and the signal generator.
Use your scope and check both logic outputs from the 40 IC. If both pulses is OK and
is going to the correct pins on the IR2103s then plug in one 2103 and check the output
pulses from that IC. Then test the next 2103. Check the transistors last.

Groundloop.

Chris31

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #227 on: December 25, 2008, 11:35:17 PM »
Merry xmas everyone, cant believe Im here reading forums LOL anyway  ;D

@luc and groundloop.

Like I said before, without the 22ohms + diode + TVS they will keep poping. I know you guys are trying to achieve OU but it would be very frustrating if you have to keep changing the drivers and the MOSFETs

you are lucky that yours lasted 15 mins, mine lasted for a few seconds  ::)

gotoluc

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #228 on: December 26, 2008, 12:02:37 AM »
@gotoluc,

It is very difficult for me to guess what is wrong with your circuit. But I will suggest also checking
the two diodes that are used on the IR2103 drivers. One way to insulate the problem is by
removing all the transistors and IR2103s. Then you connect the 12 volt and the signal generator.
Use your scope and check both logic outputs from the 40 IC. If both pulses is OK and
is going to the correct pins on the IR2103s then plug in one 2103 and check the output
pulses from that IC. Then test the next 2103. Check the transistors last.

Groundloop.

Hi Groundloop,

thanks for the reply ;) ... your instructions above is exactly what I have done! 4013 is fine then both IR2103 have output pulses at pin 5 but nothing at pin 7 with all transistors removed.

So I now have 6 IR2103 with no output on pin 7 and have no more :( ... why is it always pin 7 output blowing?

Luc
« Last Edit: December 26, 2008, 12:26:28 AM by gotoluc »

gotoluc

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #229 on: December 26, 2008, 12:33:41 AM »
@Groundloop,

can you do a minimum connection schematic to test only the IR2103's on my breadboard so I can make sure it is not a problem on my circuit board.

Thanks

Luc

ADDED: never mind, I just connected as per circuit on the breadboard p1 12v, p2 and 3 SG, p4 ground, p5 is trig. out, p6 100nf cap to p8, p7 is alt. trig. out, p8 diode to p1 and they all do the same :( ... NO output on pin 7
« Last Edit: December 26, 2008, 01:32:51 AM by gotoluc »

gotoluc

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #230 on: December 26, 2008, 01:05:01 AM »
@Groundloop,

do you think the signal generator amplifier circuit you had done for me below would work to continue testing the coils?... because I do have the parts to build it, just didn't need it since the H bridge work so well.

Please let me know.

Thanks for all your time.

Luc

TinselKoala

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #231 on: December 26, 2008, 02:06:03 AM »
Well, I have yet to blow any of my 2104s. Of course I am only driving with 25 volts max. But I'm pushing the system pretty hard with all kinds of stuff bouncing back and forth. Mine are the SOICs too, so you'd think they would be less robust. My red Tesla bifialr primaries have very low resistance, almost a dead short, and the bridge doesn't really like that, but it has withstood it. But I do usually use a  couple ohm resistor in series to keep the current down.
One difference is that I added 0.1 mFd bypass caps between pins 1 and 4, close to the chips. This might make a difference. Also the 50 ohm resistors on the gate drives.
You've got to have the switching logic running before you put power to the mosfets.

I goofed hard, and hooked up the 24 volt battery pack polarity backwards this afternoon. Big spark! Thought I'd killed the bridge for sure. After I got things hooked up right, nothing worked. Then I remembered the 15-amp fuse I put in the circuit. It did its job. Changed the fuse, and all is OK. Nothing blew, except the fuse!

Every time I turn my system on I learn something new. I new can see a tiny blue arc in the trimmer on the end of the air variable, when I hit that exact resonance that lights the LED so brilliantly. SO I am exceeding the voltage rating of that little cap, just at that point, and limiting the voltage with the short. With a better cap...yess...
Also had no trouble lighting up a little fluorescent tube today, ...with only one wire connected....

ramset

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #232 on: December 26, 2008, 03:01:11 AM »
TinselKoala
I've read MANY MANY of your posts

Seen all your movies at least once

However I don't recall ever hearing anything like this
          'With a better cap...yess...'

        Chet

gotoluc

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #233 on: December 26, 2008, 05:20:44 AM »
Well, I have yet to blow any of my 2104s. Of course I am only driving with 25 volts max. But I'm pushing the system pretty hard with all kinds of stuff bouncing back and forth. Mine are the SOICs too, so you'd think they would be less robust. My red Tesla bifialr primaries have very low resistance, almost a dead short, and the bridge doesn't really like that, but it has withstood it. But I do usually use a  couple ohm resistor in series to keep the current down.
One difference is that I added 0.1 mFd bypass caps between pins 1 and 4, close to the chips. This might make a difference. Also the 50 ohm resistors on the gate drives.
You've got to have the switching logic running before you put power to the mosfets.

I goofed hard, and hooked up the 24 volt battery pack polarity backwards this afternoon. Big spark! Thought I'd killed the bridge for sure. After I got things hooked up right, nothing worked. Then I remembered the 15-amp fuse I put in the circuit. It did its job. Changed the fuse, and all is OK. Nothing blew, except the fuse!

Every time I turn my system on I learn something new. I new can see a tiny blue arc in the trimmer on the end of the air variable, when I hit that exact resonance that lights the LED so brilliantly. SO I am exceeding the voltage rating of that little cap, just at that point, and limiting the voltage with the short. With a better cap...yess...
Also had no trouble lighting up a little fluorescent tube today, ...with only one wire connected....

Hi TinselKoala,

I'm glad it's still working for you :)... maybe it's the higher voltage like you say?... well at least you're still having fun

Nothing I can do now!... I even tried the circuit above ::) and no effect :(

Thanks for sharing.

Luc


Chris31

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #234 on: December 26, 2008, 11:09:12 AM »
Because pin 7 is the high side of the driver,

If you look at the block diagram of these drivers you will see HO pin 7 is using the bootstrap cap + diode for it to work.

Any spike getting to VS will blow the high side of the driver chip.

I dont even know if people are reading my post, I said this many times but it seems to be getting ignored. Reference design from the manufacturer doesnt mean its stable for every design, you will need to protect the components your self.

Anyway Ill keep quite for now and let you get on with it.

TinselKoala

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #235 on: December 26, 2008, 12:29:06 PM »
I'm reading you, Chris. Please don't stop commenting.

Myself, I've been there, done that, and I know your advice will save folks some hassle and money.
I can't count the number of 555 timers and electrolytic capacitors that I've literally exploded, in pulse circuits that are unprotected.
I always wear eye protection around these things. Even MOSFETs can fail spectacularly. I know I've blasted pieces of an experimental isopropyl alcohol vapor capacitor into another dimension.

The problem, of course, is that interesting behaviour of these circuits often sometimes only manifests itself in shall we say the non-linear region of the performance envelope. Or maybe even completely outside it. And the addition of these safety valves, while protecting components, sometimes seems to "regularize" the behaviour of the circuit so that the interesting performance goes away.

So it's a toss-up. I figure chips are cheap, a lot cheaper than the time it takes to plug them in or out. So buy a lot of them, use sockets, wear eye protection, warn the neighbors, and experiment away.

And also incorporate the protections that Chris (and somewhere, even I) have suggested, if it doesn't tame your wild electrons too much.

@Chet:
 ;)

Shiver

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #236 on: December 26, 2008, 01:10:17 PM »
12V @1A is pretty usable power.    I have a couple of questions I hope someone could answer:

1. Do you think these circuits could be run in parallel from a common signal generator, or would that mess up the effect? (or does each one have to be individually tuned?).

2. Could the signal be opto-isolated in some way? ( I'm dimly aware that perhaps that is an extremely stupid question).

3. Would more florescent lights demand more power than is available?  It reminds me of that artist guy who planted one end of thousands of tubes in the ground under a pylon and they all lit up.

My apologies if these things are irrelevant, as electronics isn't my field.  I'm just trying to grasp what you guys are creating here.  Thankyou.

najman100

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #237 on: December 26, 2008, 02:54:01 PM »
WOW, this is what I call colaboration. I'm very impressed.

najman100,

Great job on those PCBs, I know you from ionizationx. you also did a board design for that circuit I designed with stevie to drive the 3 primaries on a toroid.

You guys got me motivated to pull out my tesla coils and experiment....





Thank you watercellguy

Join the club
if every thing goes well in this design i will assume that i will have better production from my dry cell ,better mmw ,by harvesting back emf and by reaching coil resonance.
do not forget that stan meyers design there is a coil chock ,the apple do not fall far from the tree .Tesla  is the king .

Najman100
« Last Edit: December 26, 2008, 04:20:50 PM by najman100 »

watercellguy

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #238 on: December 26, 2008, 04:30:29 PM »
I have an ideal I would like to share, not sure how it will work... but here it is:

how about if we use a air core transformer like the ones you are using now, but with 3 windings.

1st winding is your primary driven by the same method.

2nd winding having many more turns making a HV LC circuit. on this coil we only connect a capacitor to make an HV Resonance circuit.

3nd winding is your output coil.

Any comments are welcome.


najman100

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #239 on: December 26, 2008, 05:09:37 PM »
I have an ideal I would like to share, not sure how it will work... but here it is:

how about if we use a air core transformer like the ones you are using now, but with 3 windings.

1st winding is your primary driven by the same method.

2nd winding having many more turns making a HV LC circuit. on this coil we only connect a capacitor to make an HV Resonance circuit.

3nd winding is your output coil.

Any comments are welcome.



this the stan meyers design , build it ,but what i see that you will loose the back emf from the primary coil ,maybe will have the catastrophic failure of water maybe not ,all you have is to build it the way that this pcb is designed is it redirects the BEMF to the source and i intend to hook it in parallel to the dry cell .
Najman100