Akula eternal lantern 4

[d3x0r]

Edit: I think the schematic is correct... it's the capacitance on the transistor gate that causes the shut-off, because the voltage drops from the emitter conduction through to the base... so it's not a ground deform....


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The problem I end up with in simulations is .... a wire can only conduct one way or the other... I know that's not the truth because resonance is a back-standing wave... so there is a 2directional communciation...


The simulators fail if I have current flowing into or out of a capacitor on both sides at once....


Now I would think that the charge differential of that plate itself would be skewed asynch... but I cannot find any reference for this except maybe a 3 plate cap....


due to a 'displacement' current... then in must equal out... but I think in reality this is not the case..... and if you have an in it cannot at the same time be an out... so out and out or in and in is prohibited....

[pavqw]

Well, my results are much better now regarding to LaserSaber circuit.
I use 2222A NPN transistor and 80 turns in both coils. Blue LED is powered now for cca 25 seconds. I figured out it has to be grounded else transistor is not opened so much.
It was little bit tricky to open this transistor, still there are very huge losses. So I want to order MPSA18 and try it again
It is very interesting it is changing its brightness dramatically when I touching it in various places.

But for me it is nothing more than DC->AC converter so current is much lower because LED is ON only for few mili/microseconds in each period instead of 100%. Raw power in Joule Thief is same or am I wrong?

[TinselKoala]

Examine your assumptions.

If your assumptions are wrong or even just incomplete, your interpretation of data will suffer and your conclusions may not be correct.

[MenofFather]

Edit: I think the schematic is correct... it's the capacitance on the transistor gate that causes the shut-off, because the voltage drops from the emitter conduction through to the base... so it's not a ground deform....

Only one but, bipolar transistors not have gate, only base. Or not?

[MenofFather]

But for me it is nothing more than DC->AC converter so current is much lower because LED is ON only for few mili/microseconds in each period instead of 100%. Raw power in Joule Thief is same or am I wrong?

If I good understand you, then yes. Basicly joule thief have efficienty about 80-90 precents, but maybe LaserSaber get that effect like Akula in Lantern 4 and get efficienty more than 100 precents? Because joule thief use pulses, Akula also use pulses in his lantern 4 with frenquency 200-450 herc how I understand.