Joule Thief

[TheNOP]

I was woundering if done with a toroid if the magnetic force would keep going around the toriod.
Then if you had a couple pickup coils in bettween the two main coils if you could pick up any power.

the answere is..., no.
no mag field change, no voltage on the secondary.

[Mk1]

@slayer007

so you are talking about the perpetual motion holder , it is made from a u shape magnet, and are responsible for rotating the magnet wheel. If you put a iron bar on it it closes the magnetic gate so that the current travels trough the magnet,it also store energy , released when the magnet is pulsed. i will try to find my old info on it , and post it.

Mark

[slayer007]

@slayer007

so you are talking about the perpetual motion holder , it is made from a u shape magnet, and are responsible for rotating the magnet wheel. If you put a iron bar on it it closes the magnetic gate so that the current travels trough the magnet,it also store energy , released when the magnet is pulsed. i will try to find my old info on it , and post it.

Mark

Yes, MK1 thats what I was talking about.

TheNop just posted it wouldnt work I was hoping the force would bounce back and forth between the iron plate from coil to coil.
But I dont know it was just a thought

[Mk1]

@slayer

there is something similar to that holder on a coil , is called a hall sensor or generator.

Mark

But keep you idea coming please.

[rensseak]

I just made a totally copper thingy. It is made the way the guy on the youtube video linked by jadaro showed.

1" diameter 5 turns bifilar wire around that then continuing with 10 turns around this core. It lit the primary jt led.
It lit it well,
but I did not get anything from 5 turns of a secondary.

If someone else gets good results with this I will try some other numbers of turns etc.

I spose it is an OK way to make a standard joule thief, but it won't be doing what we are doing.

I just reviewed a bunch of my others. Yes they are still good.  They didn't weaken from neglect.

On to a MK2 or 3!

jeanna

Hi jeanna,

i did it also except that i have about 25 to 30 turns around the core. that is really surprising for me. and look how many LED's. i will let it so till tomorrow morning. i used the wire from a LAN cable.

Norbert