3v OU Flashlight

[TinselKoala]

hi Tinselkoala and itsu,

There is one small noticable difference between Akula's version and Tinselkoala along with itsu.
I have attached the edited scope shot to show where i spotted something like "resonance within resonance" at these area.Upon observing carefully i can't help noticing for Akula there is much more of resonance within resonance base on scope shot provided from him.
I only spotted the difference only after itsu provided his latest scope shot which i compared against Tinselkoala's base on my memory then compared against Akula version.
Got to rush off bye for now.....

Sigh....

I apologize for having a better screen resolution on my scope.....   

(Note that the frequency of the sinus and bursts is about 300-310 Hz, not the  higher figure given in the "measurement" box.)

[d3x0r]

I took a little time to grok the skematic.


If the LED is on (which is a result of switching on the self triggered primary)
then the chip is on... (the second half the k561(unspellable)h2 )


which I guess then becomes another signal geneartor? not sure of the internals of the  k561? ya okay they're just gates looped to be a pll of sorts that allows the secondary to back pulse...


I seee..... it's one of those phase-matching things too... so it's using a transformer bidirectionally...


I dunno it looks like a bleed valve ....


... so the VCC from the chip is gates to the gate ..


-------
Okay so right; the right side is a frequency delay probably with self feedback in lack of other stimulus... driven by the primary from the mc403063 thing;
so it's a bidirectional communication ... so side a drive results on side b and side b drive (but how is it you can drive and receive? well.. that's the magic of the right side, it allows a bleed in the opposite direction ..


and I guess on the source side, the noisier/sharaper the square waves, every wave is part of a perfect square pulse but we know that


hmmmm


so that's what happens when the second side doesn't work...


so okay schematic done; and the right side turns out to be intended to work but doesn't... so that terminates in a capacitor.


Now if the drawing of the foil windings connected to the others was correct....

[d3x0r]

Mangled schematic.


Edit2 : Added dots to indicate start of winding.. both windings in same direction

[TinselKoala]

Mangled schematic.


Edit2 : Added dots to indicate start of winding.. both windings in same direction

You are "assuming" that the designer of the circuit intended for the burst oscillations to drive the lower-frequency switching of the secondary, thus achieving something like phase-synchrony or locking, at different frequencies. But what reason do you have for your assumption? Maybe the 100R resistor is supposed to add energy by converting some of its mass, under the influence of the spiky oscillation bursts, and feed this energy back into the system via radiant energy. That could be why the CMOS - type inverter is specified. Couldn't it?

My point is that there is no evidence that the various circuit tricks to synchronize two sets of oscillations, fast and slow, have anything to do with the LEDs remaining lit. You are chasing Red Herrings. 

But if you must, you can try the original Guk version or one of the more recent suggestions up above, where the right-hand coil part is actually switched by the transistor/mosfet in one way or another.  However I think you will find that your resulting waveforms may be different _than what Akula actually showed_.

[d3x0r]

You are "assuming" that the designer of the circuit intended for the burst oscillations to drive the lower-frequency switching of the secondary, thus achieving something like phase-synchrony or locking, at different frequencies. But what reason do you have for your assumption? Maybe the 100R resistor is supposed to add energy by converting some of its mass, under the influence of the spiky oscillation bursts, and feed this energy back into the system via radiant energy. That could be why the CMOS - type inverter is specified. Couldn't it?

My point is that there is no evidence that the various circuit tricks to synchronize two sets of oscillations, fast and slow, have anything to do with the LEDs remaining lit. You are chasing Red Herrings. 

But if you must, you can try the original Guk version or one of the more recent suggestions up above, where the right-hand coil part is actually switched by the transistor/mosfet in one way or another.  However I think you will find that your resulting waveforms may be different _than what Akula actually showed_.

no I'm assuming that akula is correct when he states, he started probing the circuit,  and found out the other half was actually defunct. (so beyond your lots of words to hide the fact that the coil is wrong what's your point?  you're not even commenting about my anaylysis of the circuit in d3x0rese terms....

and as then no schematic matches the coil akula uses.

but besides that; could put it in a sim and give it sufficient power and see what it does given a sine wave with proper power... or you could jump proper power to it and pulse it inline and see....


Edit: and I'm not assuming the designer intneded for the busts... I *think* he was trying to head in a different direction and found that worked out better anyway.