Joule Thief

[Mk1]

@electricme

Great, real nice , I think that if you make the transistor switch faster buy tuning the resistor it may be enough to make it work.
That is great , where do you guys get all those idea.

Mark

[jeanna]

@mk1

I think I am starting to see why you want to rectify this. Let me describe what is happening in a general way.

I added the second pickup coil. It immediately stressed the system.

Now after making 9 turns - almost as many as the first group has, I am seeing the first group go very dim when the second group goes on. I have had to add more turns to gain the same brightness in this second group and now it is affecting the first group.

However, the voltage of the first group is unchanged with any of these things. The voltage of the second group with its second secondary are showing 1/3 the amount of voltage across them.

I don't know if this is voltage being drawn from the battery or voltage coming from ac bouncing back and forth. (It must be a combination since it is drawing from the battery, but it adds up to way more than the total voltage in the battery.)

Also, I have not seen the 7.5 volts in the whole system as I did last night. If I  put the voltage probes between the - leads from the first group from 1 to 15 there is 1.8v and the second group has 0.77v which adds up to 2.57 from a battery that shows 1.25v. If I do the same thing on the + leads the two groups add up to 1.83v. There is nothing 0.00v showing across the usual place, that is between the - and + of either a single led or the group.

Is this also what you have seen?

I may stick a red and amber in here. Perhaps they are better diodes than these white ones??

====

So, again, please, do I put the bridge on the secondary before it goes to the leds so it rectifies what goes into them, or after them using whatever they have done??

thank you,

jeanna

[electricme]

@ all
There are 2 X 1.2v NiCd in the video frame, but they are wired in Parallel, not in series, press the [] [] pause button to check it for yourself.

OK, that was my very first successful attempt to run a 12v DC fan from a 1.5v powered system, actually, it is running on 1.2v DC batts 

For those who cannot understand AUSTRALIAN speak, the power goes from the batts, to the torrid, then converted to 200+KHz. Then it travels to my SECOND torrid, from there back to a second FULL BRIDGE rectifier, from there to a 35v 1000uF cap. From there to the 12v DC fan, via a press button sw, which I pulled out of a reject microwave.

I took the movie which I call a Tiny Weini Video  aka (TWV) file, just to identify it, by my Samsung Mobile Phone, uploaded to my PC using the phones software. Then went to OU on the JT forum, clicked on attatchments.
Went back to my file I made, and downloaded it.

The file itself is a 3GP (what ever that means) but it can be played by Quicktime, PC Studio Multimedia Player and probably heeps of others.

I electricme claim to be the first to power a 12v DC fan for longer than 1 second (its about 3 seconds)

Next.
Power a small relay, and harness the Back EMF somehow to keep the fan working continously.


LASTLY, you can only upload 240KB in total, this means all txt as well, so I tried to keep the TWV file at 200KB
I found this out by trial and error.

i...s...t.... ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,where are you hiding? it is I electricme


jim
 

[Bob Smith]

So i resume , In the joule thief we have , meg , tpu, bedini they are all cousins .

@Mk, if this is the case (and I believe it is), then is pulsed DC the common factor?

And if it is, then in view of the 90 degree relationship between magnetism and electricity, can we deduce anything from these inventions about the possibility of harnessing pulsed DC from a permanent magnet, copper wire and capacitor?
B

[Mk1]

@jeanna

Before doing anything check something for me . try flipping the the coil connection is if it helps.That change the current flow side.