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Author Topic: 3v OU Flashlight  (Read 563376 times)

avalon

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Re: 3v OU Flashlight
« Reply #90 on: April 19, 2014, 09:29:40 PM »
who knows the 510 might be a 510nf instead  :D :D :D
 
It can't be. The circuit is just a standard step-up converter. Att 3.3v 25 deg C, Pin7 - 3.3v and Pin5 - Gnd, 510nf would represent about 300 ms switching time. That's in the region of 3 Hz.
Incidentally, 510pf should make between 32 kHz to 40 khz depending on some other factors.

~A


avalon

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Re: 3v OU Flashlight
« Reply #91 on: April 19, 2014, 09:36:50 PM »
In this new video Akula analyzes Vadik's 3V Flashlight, which is the subject of this thread.
Akula uses his signal generator instead of the  к561лн2 CMOS Hex inverter to generate the low frequency pulsing of the outer winding (19.3Hz)
The yellow channel of his oscilloscope shows the signal at pin 1 of the MC34063 and the blue channel shows the signal at the collector of Q1 (non-decaying 290kHz oscillations).

He explains the cause of Vadik's inability to light 2 LEDs with his circuit (he blames it on the power consumption of the CMOS chip and on parallel LED connection).
Oh, the prophet has spoken...
As usual, his speech was full of cryptic messages and zero usefulness.
Also, I've got a feeling that he could not replicate the circuit in a self-sustained mode. Hence - his video is full of nonsense blabbing.

~A
 
« Last Edit: April 20, 2014, 01:59:28 AM by avalon »

magpwr

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Re: 3v OU Flashlight
« Reply #92 on: April 20, 2014, 04:46:10 AM »
It can't be. The circuit is just a standard step-up converter. Att 3.3v 25 deg C, Pin7 - 3.3v and Pin5 - Gnd, 510nf would represent about 300 ms switching time. That's in the region of 3 Hz.
Incidentally, 510pf should make between 32 kHz to 40 khz depending on some other factors.

~A


hi avalon,

I did not construct circuit yet.I merely inject 9khz signal to transistor C1815 on breadboard which is connected to my untested winding.
The objective was merely to find out the  bemf or ideal bemf i would be getting from the winding with the 2 copper shield(gapped).

The 61 turns is 470uH as measured on my L/C meter.This isn't the right core i think since it's smaller.

From here i may able to know if the bemf is able to sustain circuit.

As i mentioned previously 120volts maximum i have got on 9khz at 10% duty cycle for my case,current drawn mere 2mA on 3.4volt AA Li-ion battery.

Power input base on 3.4v x 2mA = 0.0068watt.

Power output needs to be measured later on .It's Sunday morning over here as i am typing this. :)

From here i might able to tell if there is ou effect.Result will be posted later <2hours.

It's only the output current which i have not measured yet.I will just use 1Kohms 1% resistor to know the current in mA.

If you guys simply replicate without knowing how it actually works may spell disaster if it fails and if we don't know on how to debug and solve.

"It's my way of optimizing time while waiting for components"



---------------------------------------------
Latest result on power input to power output efficiency related to Bemf on 61 turns winding.
Merely used 1 diode 1N5819 connected to collector and negative.Output of diode is connected to 5uf capacitor which is also connected to negative.

Input -   0.0066Amp X 3.4V =0.020watt

Output-   4.21v x 0.00421Amp =0.0177watt             (With 1k 1% resistor as load)

Power in/out Efficiency max:88.5% after changing frequency close to original 9khz under 1k load.

---------------------------
I have not tried mixing 2 different frequency yet.Honestly l'm little lost now... :D :D :D


 

magpwr

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Re: 3v OU Flashlight
« Reply #93 on: April 20, 2014, 04:57:44 AM »
Warning: If my M.O. of this circuit is correct then you should not use acoustically dampening materials such as a vinyl or Teflon tape on the core.
The ideal insulating spacer separating the core is mica (because it does not dampen ultrasonic core vibrations).  Paper is worse than mica but not as bad as vinyl tape.

hi verpies,

I agree with you on   "dampen ultrasonic core vibrations" part.
My focus during winding was merely on electrical isolation <50volts using common vinyl tape.

magpwr

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Re: 3v OU Flashlight
« Reply #94 on: April 20, 2014, 07:20:11 AM »
Hi MenoFather,

I just spotted this latest video from Artur Shahinyan (The person whom attempted replication using exact same ferrite core)whom just uploaded 2nd video few hours ago.

Фонарик 02
http://www.youtube.com/watch?v=izqV7lAPhMU

Kindly tell us what was his findings base on what looks like a  Back Emf signal shown on oscilloscope without using 8 pin i/c in socket.Thanks.

For everyone fyi- "Oscilloscope probe is connected to transistor collector and negative for measurement base on video"

I noticed he did not insulate the copper wires(at both opening of ferrite) from touching the ferrite core which may hinder output.Please do advise him.

Just notice this time he did use cut paper in circle in the center to prevent 2 ferrite half from touching each other."This is recommended"
 

avalon

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Re: 3v OU Flashlight
« Reply #95 on: April 20, 2014, 07:30:51 AM »

I did not construct circuit yet.I merely inject 9khz signal to transistor C1815 on breadboard which is connected to my untested winding.
The objective was merely to find out the  bemf or ideal bemf i would be getting from the winding with the 2 copper shield(gapped).
You are on the right path as far as I am concerned. I, too, am going to do in-depth ferrite research.

My approach is slightly different, though.
I have a 2 ch arbitrary waveform generator which can generate any signal I want (up to 14 bit resolution) from DC to 40Mhz.
I am going to sweep frequency range using different coils and ferrites in order to see if the ferroresonance can, indeed, be harnessed.
So, it is not so much the bemf that I am researching but the individual resonance frequencies for different types of ferrites and coils.

I can easily program the signal generator to emulate 34063 signals on one channel and the oscillator/switch signal on another channel.
Moreover, I can independently time-shift these two signals to emulate any possible synchronization scenario imaginable.

I will post the results here if there is anything interesting found.

~A





MenofFather

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Re: 3v OU Flashlight
« Reply #96 on: April 20, 2014, 09:08:14 AM »
Here i draw schematic how can be possible make generator on notliner induction. IR 2153 need 15 volts minimum and I not shore or on it works how need, so I draw on NE555.
And atach image how wery fast close mosfet transistor, better use that metod.

magpwr

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Re: 3v OU Flashlight
« Reply #97 on: April 20, 2014, 10:20:21 AM »
Here i draw schematic how can be possible make generator on notliner induction. IR 2153 need 15 volts minimum and I not shore or on it works how need, so I draw on NE555.
And atach image how wery fast close mosfet transistor, better use that metod.

hi MenoFather,

To be honest i don't dare to try on work on any circuit where there is no video presentation done.

I only work on circuits which have a higher probability of success or those that i am interesting in ,not necessary it will be a success 100% of the time. :)

I noticed for some strange reason the Russian forum is down today which also discuss on 3volt ou light.

http://zaryad.com/forum/viewtopic.php?f=8&t=8534&sid=44665f28bfdfd77d63d99cdd0f90dcbe&start=20

TinselKoala

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Re: 3v OU Flashlight
« Reply #98 on: April 20, 2014, 12:38:15 PM »
The use of the PNP Darlington (eg TIP125 or similar) to turn off the mosfet is a great idea. The faster and more cleanly you can turn off the mosfet, the greater the spike/ringing you will get from the switched inductor. A fast diode and Darlington as shown in the drawing could help, if that is the desired product.



magpwr

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Re: 3v OU Flashlight
« Reply #99 on: April 20, 2014, 01:49:40 PM »
hi everyone,

I can't tell if this is the 1st successful replication attempt since i don't understand Russian.Base on observation he manage to get green light blinking but unsuccessful when attempting to light red Led for long.
Please jump to 48min of the video.I can't tell what is he talking about the transistor.Please assist...

http://www.youtube.com/watch?v=oweZgIVZ-LY

The sound on flyback core sounds little like a untuned radio.

I wonder if the 2 wire (+) and (-) in the original video is acting like antenna pickup unknowingly."Just guessing"
 

T-1000

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Re: 3v OU Flashlight
« Reply #100 on: April 20, 2014, 03:27:29 PM »
hi everyone,

I can't tell if this is the 1st successful replication attempt since i don't understand Russian.Base on observation he manage to get green light blinking but unsuccessful when attempting to light red Led for long.
Please jump to 48min of the video.I can't tell what is he talking about the transistor.Please assist...

http://www.youtube.com/watch?v=oweZgIVZ-LY

The sound on flyback core sounds little like a untuned radio.

I wonder if the 2 wire (+) and (-) in the original video is acting like antenna pickup unknowingly."Just guessing"


Because the power gain is about 1 watt or so it comes down to electronics power consumption and balance as well. If you manage to get economic chips for generators, it will be left enough to power on LED.


Also the noise you hear in video is the result of magnetostriction ( http://en.wikipedia.org/wiki/Magnetostriction ) which is involved in 2 clashing frequencies from 2 generators (the second is resonant when coil get shorted).


The trick there is most likely to turn magnetic domains mechanically out of XY axis to Z axis and that movement still results on induction which is not tied to pulsing coil from main generator anymore...


MenofFather

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Re: 3v OU Flashlight
« Reply #101 on: April 20, 2014, 05:18:35 PM »
hi everyone,

I can't tell if this is the 1st successful replication attempt since i don't understand Russian.Base on observation he manage to get green light blinking but unsuccessful when attempting to light red Led for long.
Please jump to 48min of the video.I can't tell what is he talking about the transistor.Please assist...

http://www.youtube.com/watch?v=oweZgIVZ-LY

The sound on flyback core sounds little like a untuned radio.

I wonder if the 2 wire (+) and (-) in the original video is acting like antenna pickup unknowingly."Just guessing"
Here is mine video. Here is no selfrunning. How I say, curent consumption is about 100-200 miliamperes on 3 V. I try 3 diferent cores and not get selfrunning. But not try pot core. My best results, then I disconectn 16 leg chip, then I get smallest consumption with 4 kiloomh potentiometer regulatet in right position about 50-30 miliamperes and then core begin screaming (жужать).  ;D

magpwr

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Re: 3v OU Flashlight
« Reply #102 on: April 20, 2014, 05:21:17 PM »

Because the power gain is about 1 watt or so it comes down to electronics power consumption and balance as well. If you manage to get economic chips for generators, it will be left enough to power on LED.


Also the noise you hear in video is the result of magnetostriction ( http://en.wikipedia.org/wiki/Magnetostriction ) which is involved in 2 clashing frequencies from 2 generators (the second is resonant when coil get shorted).


The trick there is most likely to turn magnetic domains mechanically out of XY axis to Z axis and that movement still results on induction which is not tied to pulsing coil from main generator anymore...

Hi T-1000,

This is definitely new for me T-1000 ,did check the wiki link awhile ago.Only through experimenting i learn better from mistakes.

--------------------------------
hi everyone,

I have just constructed 1/2 of the circuit on circuit board merely using 4069 ,transistor with led.

This is my findings using 10uf capacitor for 4069 with test coil actually draw more current from battery compared to 4.7uf on bread board.

 It's is like higher duty cycle on 10uf .I would be trying on 4.7uf,2.2uf and 1uf since the capacitor would charge alot quicker the duty cycle would be reduced as well,but frequency will increase which can be change using screw driver. :D

From my experiment conducted in the morning i find that between 10% duty...18% yield the best result for Back emf.

TinselKoala

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Re: 3v OU Flashlight
« Reply #103 on: April 20, 2014, 06:03:44 PM »
So is this a different replication? Not using the pot core at all? No big PCB copper area? Pretty impressive if you ask me.

http://www.youtube.com/watch?v=9zilk7itV6k

4Tesla

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Re: 3v OU Flashlight
« Reply #104 on: April 20, 2014, 08:09:22 PM »
hi MenoFather,

To be honest i don't dare to try on work on any circuit where there is no video presentation done.

I only work on circuits which have a higher probability of success or those that i am interesting in ,not necessary it will be a success 100% of the time. :)

I noticed for some strange reason the Russian forum is down today which also discuss on 3volt ou light.

http://zaryad.com/forum/viewtopic.php?f=8&t=8534&sid=44665f28bfdfd77d63d99cdd0f90dcbe&start=20

Looks like that site is up, but the topic is deleted.