Joule Thief

[nievesoliveras]

i cant help it... im just full of ideas ... 
...
jesus maybe you could employ your feed back method to this unit and make it self chargeing ...  and perpetual ...
...
ist! 

@innovation

I know you are a genius and also that there is nobody on this forum that winds a toroid faster than you, but it is very difficult to understand what you want to teach us, because of the criptic way of explaining it.

I do admire your way of surviving.

Jesus

[innovation_station]

like a tesla switch flip batteries to keep the ringg running wile you get your out put for free..

i have been working on a cell fone battery i drain some off like with an led in a normal way and im rechargeing the cell fone battery from the aa when i charge the cell fone and burn the led in the normal way at the same time my battery voltage drops ever so slowly like .001v  ever min or so .. when i disconnect the recharge and burn the led it drops much faster this is from a collector through a full wave bridge ..

the little ring apears to recharge the cell fone battery  easly but it is not instant recharge .. its a 3.7 v lithium ion 1100mah plus i never droped it below 3.705 v b4  but in 15 min or so its back up to 3.740

but im now useing a fully charged aa on the input and the ring is makeing noise

im just learning like everyone but i started backward with the tpu first to learn all about the kick ..

ist

i think i tuned into verry close to a ballance point ..  im burning a super bright blue led from the cell fone battery and im now only dropping .001v every 15 min   so i dont know what the led consumes but .. it is useing power as it was designed to this is not by the kick lighting like the jt ..  this is after recovery in a battery from a collector winding .. just npn  now this ring lights a neon no problem but they seem to charge at close to the same rate .. as many of my other rings that dont lite neons .. 

now its getting intresting when i put the led back on the battery .. insted of droping this time wile burning the led it is actually really slowly RECHARGEING STILL  wile burning the led normally .. i have gone up .002 v in sted of droped ...   

now thats wild ..  sure it is takeing engery from the aa but big deal ... i bet it aint much compaired to 3.7v at even 20 ma to power the led i dont know how much they use .. in all other tests it apeared to drop in voltage .. now its climbing ... 

[xee2]

@ jeanna and all

Neon as spark gap idea does not seem good.

I am not sure if there is a way to use the neon as a spark gap in any practical way since it will only work as a spark gap if the supply current is very small.

The problem is that the neon does not discharge the capacitor when it turns on because it will not conduct a high current. So unless there is less current coming into capacitor than the neon is conducting when it is on, the capacitor will not discharge.

This should have been obvious to me, but I have used surge protectors in circuits that were basically just neon bulbs but that conducted very high currents. It is obvious now the surge protectors had some special design to conduct the high current. This idea may work if the proper surge protectors can be found.

[xee2]

@ jeanna

You just warned that the neon spark idea could make really high voltage and be careful.
So, this made your proposed circuit sound like one that could make a higher potential than what I am normally getting there from the secondary.

It takes over 100 volts to turn on neon bulb. At very small currents this is not deadly. But when a capacitor is charged to 100 volts it can deliver 100 volts at very high currents and these can be dangerous. That is why I said only use small capacitors.

When a transformer is added to the circuit thousands of volts can be created. If the current is high enough this can be very dangerous. This is basically a Tesla coil circuit and so it will generate high voltages like Tesla coils do.

This is how Tesla generated his high voltages. He knew how to do that safely, but not everyone has his knowledge. That is why I thought the neon was a good idea. Since much of what Tesla did with spark gaps can be done with very small (thus safer) currents using the neon instead of a regular spark gap. However, I did not realize how small the currents had to be when using a neon as a spark gap.

[Mk1]

@all

I tried the rodin coil jt , i had to do it twice to get it , now first observation i connect a diode bride between the E and C to see the voltage with a old battery a got around 25 volt , now i tried a 3v battery , the meter went crazy , showing -180v on the 200 division and -1800v on the 1000 volts range , but its not right it looked like the meter was going nuts flashing .

I include the drawing i used for making it , i found it easier to concentrate on the wiring angle to find it proper location. This a basically 12 turn bi-fillar.