3v OU Flashlight

[TinselKoala]

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

[TinselKoala]

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.

[MenofFather]

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.

[verpies]

I now have Vadik Guk's circuit with 16 pin instead 14 pin chip.

What is the part number of the chip?

[itsu]

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 

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