Storing Cookies (See : http://ec.europa.eu/ipg/basics/legal/cookies/index_en.htm ) help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
https://overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please LEAVE this website now. From the 25th of May 2018, every existing user has to accept the GDPR agreement at first login. If a user is unwilling to accept the GDPR, he should email us and request to erase his account. Many thanks for your understanding

User Menu

Custom Search

Author Topic: 3v OU Flashlight  (Read 563392 times)

d3x0r

  • Hero Member
  • *****
  • Posts: 1433
Re: 3v OU Flashlight
« Reply #570 on: May 11, 2014, 09:26:01 PM »
But that would produce different waveforms no?

Bill
No; it's the output of the chip.... can't say the resulting wave is exactly the same; apparently it's maybe nearly congruent but without a slight gain


a 1:3 transformer input and output look the same as a 1:3.5

d3x0r

  • Hero Member
  • *****
  • Posts: 1433
Re: 3v OU Flashlight
« Reply #571 on: May 11, 2014, 10:03:03 PM »
No; it's the output of the chip.... can't say the resulting wave is exactly the same; apparently it's maybe nearly congruent but without a slight gain


a 1:3 transformer input and output look the same as a 1:3.5


if the foils are the same, the coil becomes directional also, so it's important to know which side was ground and which side was power....


you end up with a CW(foil), CCW(wire) and CCW(wire) inductors or CCW(foil), CW(wire) and CW(foil)

tysb3

  • Full Member
  • ***
  • Posts: 206
Re: 3v OU Flashlight
« Reply #572 on: May 11, 2014, 11:43:01 PM »
I am still waiting for an explanation for this fact:

We can produce waveforms that are identical to Akula's scopeshot, with the same circuit, but NO LEDs remaining on perpetually.

And the corollary question: How can a "wrong" ferrite material wind up producing the same waveforms when stimulated in the same way by the same circuit ?

The fact that the same waveforms are produced by the same circuit strongly indicates to me that we are using the same ferrite material, and/or we are operating at such paltry low frequencies that the material isn't all that important. I reject the claim-without-evidence that two "identical" circuits except perhaps the ferrite material, could make identical waveforms, but only one of them keeps the LEDs lit after removing power.

I don't see any identity in presented there scopeshots with Akula's scopeshot

TinselKoala

  • Hero Member
  • *****
  • Posts: 13958
Re: 3v OU Flashlight
« Reply #573 on: May 12, 2014, 01:30:44 AM »
I don't see any identity in presented there scopeshots with Akula's scopeshot
Please point out the differences.


d3x0r

  • Hero Member
  • *****
  • Posts: 1433
Re: 3v OU Flashlight
« Reply #574 on: May 12, 2014, 01:52:13 AM »

if the foils are the same, the coil becomes directional also, so it's important to know which side was ground and which side was power....


you end up with a CW(foil), CCW(wire) and CCW(wire) inductors or CCW(foil), CW(wire) and CW(foil)


Try again; the connections are opposing... so you get cw, ccw, cw or ccw, cw, ccw


A) Reference wire pairs, 1 layer of tape removed; dark pair to the left(higher mH), white pair (lower mH).
b) How much of a gap the outer copper has; and the solder point for the secondary (white wire)
c) foil being removed, short wire cut, still is a pair with a white wire
(c-d) unwind primary, and a layer of tape between W1 and W2
d) beginning to unwind inner coil, from short wire that was cut in B
e) the gap of the inner foil, the connection point, oriented to match the others.


I really don't mind someone challenging me rather than letting me think I had it spot on; other than that the foils are only attached to the lower mH coil.

d3x0r

  • Hero Member
  • *****
  • Posts: 1433
Re: 3v OU Flashlight
« Reply #575 on: May 12, 2014, 02:09:32 AM »
a worse drawing

d3x0r

  • Hero Member
  • *****
  • Posts: 1433
Re: 3v OU Flashlight
« Reply #576 on: May 12, 2014, 02:21:38 AM »
Please point out the differences.
akula yellow is higher;  (1 and a part divs at 5v is 7V vs mostly 3 divs at 2V is 6V )
TK blue is higher (3 divs at 1V vs  2 and a part divisions at 1V)

akula assume scope has x10 set and it means 5... ( spanning 1 division is a little more than 5V and a part divisions would be 7V... vs 3 divs at 2V or 6V in the yellow)


so it can be seen the blue reflected back to yellow in TK is a higher amplitude relatively than akula.

Edit; oh 1 and 2 aren't what I thought they were... they're closer than I originally noted had 1V and 2V backwards



EMJunkie

  • Hero Member
  • *****
  • Posts: 3322
Re: 3v OU Flashlight
« Reply #577 on: May 12, 2014, 11:15:12 PM »
Please point out the differences.

@TK

Can you please post Scope Shots of your C1 VE+ and VE- Rail! Voltage and Current if you could, Please.

The reason I ask is:

Quote
Typically the Magnetic Field and Current follow the Right Hand Rule but the Voltage is in the opposite direction...

Thanks

All the Best

  Chris

avalon

  • Full Member
  • ***
  • Posts: 160
Re: 3v OU Flashlight
« Reply #578 on: May 13, 2014, 03:07:33 AM »
Yes, I will bet my bottom dollar (not far away now) that all the power did come from the PSU, and was stored in the capacitors until it was released through a failed component.

I can assure you that you are wrong. I now have stable 400-500V ~ under load (2 * 1W Cree) with no failed components @ 2.6V DC / 12 mA.
I am too busy studying the effect for the moment but will post something later for everyone to have a look at.

~A

avalon

  • Full Member
  • ***
  • Posts: 160
Re: 3v OU Flashlight
« Reply #579 on: May 13, 2014, 03:08:21 AM »
I can assure you that you are wrong. I now have stable 400-500V ~ under load (2 * 1W Cree) with no failed components @ 2.6V DC / 12 mA.
I am too busy studying the effect for the moment but will post something later on for everyone to have a look at.

~A

lost_bro

  • Sr. Member
  • ****
  • Posts: 282
    • youtube channel
Re: 3v OU Flashlight
« Reply #580 on: May 13, 2014, 03:28:11 AM »
I can assure you that you are wrong. I now have stable 400-500V ~ under load (2 * 1W Cree) with no failed components @ 2.6V DC / 12 mA.
I am too busy studying the effect now but will post something later for everyone to have a look at.

~A

Sounds Excellent, can't wait to get the details on this!!!!!

take care, peace
lost_bro

EMJunkie

  • Hero Member
  • *****
  • Posts: 3322
Re: 3v OU Flashlight
« Reply #581 on: May 13, 2014, 05:39:30 AM »
I can assure you that you are wrong. I now have stable 400-500V ~ under load (2 * 1W Cree) with no failed components @ 2.6V DC / 12 mA.
I am too busy studying the effect for the moment but will post something later for everyone to have a look at.

~A

@Avalon,

This sounds very promising!

If you wouldn't mind checking for possible Arch's across windings. The first thing that comes to mind is that there may be a possible Arch that may be causing what your seeing.

If there is no Arch's then check for a pot or resistor that may be bad.

Good work!

All the Best

  Chris



avalon

  • Full Member
  • ***
  • Posts: 160
Re: 3v OU Flashlight
« Reply #582 on: May 13, 2014, 05:54:08 AM »

If you wouldn't mind checking for possible Arch's across windings. The first thing that comes to mind is that there may be a possible Arch that may be causing what your seeing.

I agree. The trouble is to how to actually prove (or disprove it). I cannot open the pot for the sweet resonance spot goes away. Apart from that, it is quite difficult to separate the halves of the pot once in the sweet spot. However, I am working on it and promise to post the results.

~A

EMJunkie

  • Hero Member
  • *****
  • Posts: 3322
Re: 3v OU Flashlight
« Reply #583 on: May 13, 2014, 07:15:57 AM »
I agree. The trouble is to how to actually prove (or disprove it). I cannot open the pot for the sweet resonance spot goes away. Apart from that, it is quite difficult to separate the halves of the pot once in the sweet spot. However, I am working on it and promise to post the results.

~A

Hey Avalon,

If I may recommend a full documentation of where you are, from Turns to Pot Specs (Especially Permeability), Circuit frequency and duty.

Then maybe putting Circuit in a dark room and trying to see if the arch is visible. You should be able to see it on your scope, I don't recommend trying because it could damage your scope...

It may come down to a Coil Re-Wind to check for visible signs of arching?

All the Best

  Chris

avalon

  • Full Member
  • ***
  • Posts: 160
Re: 3v OU Flashlight
« Reply #584 on: May 13, 2014, 08:25:50 PM »
Hey Avalon,

If I may recommend a full documentation of where you are, from Turns to Pot Specs (Especially Permeability), Circuit frequency and duty.

Then maybe putting Circuit in a dark room and trying to see if the arch is visible. You should be able to see it on your scope, I don't recommend trying because it could damage your scope...

It may come down to a Coil Re-Wind to check for visible signs of arching?

All the Best

  Chris
You already have it. I have posted earlier the datasheet for the pots I am using, as well as the inductance (37 mH and 57 mH). I used the calculation formula from the datasheet to determine the number of turns.

The rest is coming.

~A