Language: 
To browser these website, it's necessary to store cookies on your computer.
The cookies contain no personal information, they are required for program control.
  the storage of cookies while browsing this website, on Login and Register.

GDPR and DSGVO law

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

Google Search

Custom Search

Author Topic: 3v OU Flashlight  (Read 476544 times)

Offline d3x0r

  • Hero Member
  • *****
  • Posts: 1417
Re: 3v OU Flashlight
« Reply #450 on: May 04, 2014, 11:12:19 AM »
it would be important that loops in cores not be conductive; and hence spaced... if your ferrites are conductive; I assume some ceramics aren't.


Offline d3x0r

  • Hero Member
  • *****
  • Posts: 1417
Re: 3v OU Flashlight
« Reply #451 on: May 04, 2014, 11:15:57 AM »
Okay Every time I see a schematic like laser saber's and TK's I go rewatch the video... the foil connections are not part of the higher inductance coil. 


http://youtu.be/Lpx1SJdXnmo?t=5m38s


Which means, given 2 coils, and 2 foils, and 1 coil not connected to a foil at all... means the other coil is the only one connected.


THe fist foil is cut, and it is attached to a wire that goes deep into the coil, and is somewhat not near any other wire... then the primary which is from 2 long leads...


someone said my picture was a joke... I don't know what your source is for the schematics but they're still not correct...


Offline NETIKS

  • Jr. Member
  • **
  • Posts: 56
Re: 3v OU Flashlight
« Reply #452 on: May 04, 2014, 11:58:02 AM »
Cool!  8)
You connect 100farad small super capacitor and it will run for days on one charge but the light intensity is low

Offline itsu

  • Hero Member
  • *****
  • Posts: 1836
Re: 3v OU Flashlight
« Reply #453 on: May 04, 2014, 12:10:30 PM »
Looks nice Itsu... you are off to a good start I think. You can already see one thing: your mosfet isn't really switching at all, the Drain is staying at Battery voltage, yet you have oscillation bursts and the beginnings of a sinus signal. Do you have the larger inductance on the 34063 side? If not.... try it. Also try sticking an NPN transistor in there instead of the mosfet. B=G, C=D, E=S.

The schematic in that nice format is, I think, originally verpies's work, and it has gone through some changes, as you see. My last version is still working strong, drawing about 10 mA, making the approved waveforms, humming the ferrite, but the LEDs still go out when I pull the power.
 :'(

Yes, i was wondering what that MOSFET/Transistor is doing there as all the symptomes (oscillations, blinking leds, humming transformer) can be seen without it switching, so i guess these symptomes are not what we looking for.

I swapped the transformers severall times and ended up with the larger (i have 1:3) inductance at the 34063 side to come up with this present signal
In the other situation (larger inductance at the inverter side) i have mainly evenly spread higher frequency pulses which give no reaction at all on pin13.
I will use transistors as well in the next tests.

I followed your testing with the 4069 only (no 34063, no coils) using the FG as input on pin 13 and could recreate those same signals, only my supply voltage needed to be more (between 3.5 - 4V) to get these same results.

When i receive my pot cores, i will double check on the winding/construction of the coil/foil as like d3x0r says, it could be constructed wrongly now as i have it (like in the diagram).

Regards Itsu

Offline MenofFather

  • Hero Member
  • *****
  • Posts: 943
Re: 3v OU Flashlight
« Reply #454 on: May 04, 2014, 12:11:54 PM »
hi Menofather,

Since you are able to understand Akula words better than us why not you try to replicate the device and then show us where we had done wrong.
I will be happy to listen to you after your successful replication."I am still learning"
Because you replicating, I working on other divices and I not have that wire. I not beleave that here enouch information to replicate me sucsesffuly, but others belive and replicating and maybe more know how 14 ping generator work and in electronic. They bulded that schematic, so them easily something change, I not build that schematic, so me harded make this schematic. If somebody not like building how I advicing, then can not build.

Offline 4Tesla

  • Hero Member
  • *****
  • Posts: 946
Re: 3v OU Flashlight
« Reply #455 on: May 04, 2014, 04:53:42 PM »

Offline verpies

  • Hero Member
  • *****
  • Posts: 3466
Re: 3v OU Flashlight
« Reply #456 on: May 04, 2014, 04:59:18 PM »
Is he on this forum?


Offline TinselKoala

  • Hero Member
  • *****
  • Posts: 13968
Re: 3v OU Flashlight
« Reply #458 on: May 04, 2014, 05:23:41 PM »
TKola and others you use 5,4 and 2,7 milihenries, but here can be 54 and 27 milihenries. I calculate that about 130-190 turns have 54 milihenries coil of this video https://www.youtube.com/watch?v=AGjlXAHpMKI And he core can be big and have hight prmability.
Perhaps you have made another error in your calculations, because I have well over 300 turns of #27 on the coil on a good flyback ferrite and it only measures 20 mH. There is simply not enough room on the bobbin for two coils at 54 and 27 mH unless one uses very fine wire.
AND not only that but your oscillation and burst frequencies will be much lower than those shown on Akula's scopeshot if you use the heavier inductances.

If you think otherwise, that is fine..... as long as you can provide some experimental evidence for your thinking. Remember... I actually have data from a real device that support my contentions.... not just calculations.


Offline TinselKoala

  • Hero Member
  • *****
  • Posts: 13968
Re: 3v OU Flashlight
« Reply #459 on: May 04, 2014, 05:24:23 PM »
http://www.overunity.com/profile/lasersaber.21749/
http://laserhacker.com/?p=401
Yes, he checks in here sometimes, when he's not too busy actually performing his laboratory work.


Offline TinselKoala

  • Hero Member
  • *****
  • Posts: 13968
Re: 3v OU Flashlight
« Reply #460 on: May 04, 2014, 05:26:55 PM »
You connect 100farad small super capacitor and it will run for days on one charge but the light intensity is low

That's right, and even on a smaller, non-supercap one can keep a LED or two lit up brilliantly for long enough to do a YT demonstration. One can even charge the system wirelessly.

http://www.youtube.com/watch?v=yvfXdEb4xKM

Offline TinselKoala

  • Hero Member
  • *****
  • Posts: 13968
Re: 3v OU Flashlight
« Reply #461 on: May 04, 2014, 05:36:52 PM »
Because you replicating, I working on other divices and I not have that wire. I not beleave that here enouch information to replicate me sucsesffuly, but others belive and replicating and maybe more know how 14 ping generator work and in electronic. They bulded that schematic, so them easily something change, I not build that schematic, so me harded make this schematic. If somebody not like building how I advicing, then can not build.

By "14 ping generator" you are referring to the hex inverter chip? The 74x14 chip is a Schmitt Trigger Hex Inverter, it is used just like a 4069.
http://www.talkingelectronics.com/pay/BEC-2/Page49.html

On some of the Vadik Guk schematics like the one below a couple of the gates of this inverter appear to be used as an oscillator, so could be called a "generator" of sorts. But in the schematic I am using all of this has been removed and only one gate of the inverter is used and so it is _not_ a "generator" of any kind, it simply produces the 180 degree phase difference between the "load" 100R signal and the burst oscillations.


In the other thread you are asking, I think, about how to synchronize the two 494 oscillators or establish a phase relationship. The phase relationship Akula shows in the scopeshots are, I think, produced by the Phase-Locked Loop (PLL) chip CD4046 in one of the schematics, but it may also be possible to synch the two 494s without the PLL.

Offline MenofFather

  • Hero Member
  • *****
  • Posts: 943
Re: 3v OU Flashlight
« Reply #462 on: May 04, 2014, 06:27:50 PM »
By "14 ping generator" you are referring to the hex inverter chip?
I now have Vadik guc circuit with 16 pin instead 14 pin chip. But I not known that make more, for me not working Vadim Guk divice. Here is not easy rewound and finding needed wire and wasting time.


Попробовал я эту схему Вадима ещё раз. Без 16 ногового генератора катушки. Идут на перво ножки и минусе пачки импульсов примерно с 50 процентов скважностью и после пачек синусйдальное затухание. Вот почему пачки импульсов идут ,то я не понял. Питал от 2-3 вольт. Пачек частота около 500 герц.

Offline verpies

  • Hero Member
  • *****
  • Posts: 3466
Re: 3v OU Flashlight
« Reply #463 on: May 04, 2014, 09:31:25 PM »
I now have Vadik Guk's circuit with 16 pin instead 14 pin chip.
What is the part number of the chip?

Offline itsu

  • Hero Member
  • *****
  • Posts: 1836
Re: 3v OU Flashlight
« Reply #464 on: May 04, 2014, 10:53:01 PM »

Ok,  same circuit (TKLABS V1.4) with same components, now with much higher inductance on the E-core transformer.
I have one side 600mH, other side 100mH  :o

After some testing i found that the higher inductance coil should go to the inverter (W2)
This way the 1:6 ratio ensures an adequate input pulse for this inverter to produce a good output (gate) signal.

I get the following screenshot (to get the MOSFET activated i needed to raise the supply voltage to 4V (@ 100mA).

All signals compared to ground

CH1 (yellow) top of D1 diode
CH2 (blue)   pin 13
CH3 (purple) gate MOSFET (pin 12)
CH4 (green)  Drain MOSFET

Regards Itsu