Joule Thief

[xee2]

@ Artic_Knight

i believe what you are doing is saturating the core without the use of electrical magnetic field.

I am very sure that the magnet causes the core to saturate at lower coil drive currents. But I think that is just another way of saying the inductance of the coils is reduced. The coil will store less energy per cycle thus has lower inductance.

[nievesoliveras]

Hi I have B2 spice 2000 circuit simulator, would appreciate the code to run.
Kind regards CRO

This is the code for that specific circuit. I hope that it can help.

$ 1 5.0E-6 10.20027730826997 50 5.0 50
t 240 272 288 272 0 1 -1.263797699743412 0.5676588072418692 100.0
r 240 272 240 208 0 1000.0
w 336 144 368 144 0
w 240 208 240 144 0
w 272 144 240 144 0
w 288 288 288 320 0
w 304 144 304 112 0
v 432 320 432 112 0 0 40.0 1.2 0.0 0.0 0.5
w 304 112 432 112 0
w 368 320 432 320 0
w 368 144 368 256 0
w 304 112 240 112 0
d 240 144 240 112 1 0.805904783
162 368 256 368 320 1 2.1024259 1.0 0.0 0.0
169 272 192 272 144 0 4.0 1.0 1.3552527156068805E-20 -7.1931996917352515E-6
w 336 256 368 256 0
w 336 256 288 256 0
w 288 320 336 320 0
w 336 320 368 320 0
162 336 256 336 320 1 2.1024259 1.0 0.0 0.0
o 0 64 6 35 5.0 9.765625E-5 0 -1

Jesus can you please give us a little explanation about that winding of the selfrunning that you've posted please?
What's that wire coming up from the middle of the JT? It's just a junction to the coil?
Happy Christmas to you and your Family.
Thanks

The winding is a standard 1:1 joule thief.
The wire comming up from the middle of the transformer is the positive connection of the joule thief.

It has a pick up coil but it is not used in this case. The only center taped transformer that the circuit simulator had was that one.

The diode is between the center tap and the wire that goes to the base, but it is before the resistor to be efficient.

Jesus

[innovation_station]

i just found a few big peices of the weirdest yet ...  shinny  bigtime  weighs almost nothing is not alum not silver weird

it is solid im not sure  what is this ?

if it is silver ...  it must be better grade than my other stuff cuz it dont look the same ..  nor weigh the same ....

ist

im thinking ... i can probally find some good superconductive sparkgap parts ..... maybe build some ...  if i can find out what i all have ........

maybe   i have hundreds of 1kv caps dc ....  ; ) 

[Artic_Knight]

@ Artic_Knight

I am very sure that the magnet causes the core to saturate at lower coil drive currents. But I think that is just another way of saying the inductance of the coils is reduced. The coil will store less energy per cycle thus has lower inductance.

i cannot remember where i heard this and maybe this too plays into the inductance thing but supposedly saturating the core left no room for magnetism to travel inside the core so it basically traveled outside the core yet still somewhow tied to it, like high voltage travels outside a wire a saturated core makes the magnetic currents travel outside the core.  this seemed more like having a supercooled conductor a lossless transport.

well until we get the magical magnetic viewing goggles i fear we may never really know whats happening.

[nievesoliveras]

i cannot remember where i heard this and maybe this too plays into the inductance thing but supposedly saturating the core left no room for magnetism to travel inside the core so it basically traveled outside the core yet still somewhow tied to it, like high voltage travels outside a wire a saturated core makes the magnetic currents travel outside the core.  this seemed more like having a supercooled conductor a lossless transport.

well until we get the magical magnetic viewing goggles i fear we may never really know whats happening.

I have seen on the internet some people that use iron filings inside a flat bowl and put it over the circuit or transformer to see how the magnetism is.

Jesus