Joule Thief

[jeanna]

...
the bit i dont get is why a bridge rectifire has any affect on dc pulses unless the jt really is producing ac voltage so if that is the case most inverter will have a jt of some sort

another thing to point out ac in a house the neutral dose go to earth on every pilone over so many miles
think abaout this ac is pulses of electricity but they move back and forth now for there to be a hot wire and a cold(nueatral) one must go to earth otherwise both terminals would be hot (live) if you done belive this go look at some pilones you will see some have shorting rods i was told this info by a mains distributer engineer aka my step dad

The secondary of the jt can look like high spikes going only op OR down, Sometimes they can go both ways as I recently said to jadaro, but they need to be double rectified.
It means you need a full bridge to make - and + out of what goes in, but after the - you must add another diode in the same - direction and the same on the pos side.
You can test this yourself.

Get a cap from a camera, and use it to collect the volts off the bridge, and short and repeat a few times.

Then add the 2 extra diodes and collect the result in the same (first shorted) cap. You will see way more volts this way.
I do not know why this is.  MK1 pointed this out to me and he is right.
These are all normally unseen and wasted voltage spikes.
Now that we can see then, we can use them.


About the mains. we waste a lot.
It is amazing how we are set to waste so much.

jeanna

[resonanceman]

It means you need a full bridge to make - and + out of what goes in, but after the - you must add another diode in the same - direction and the same on the pos side.
You can test this yourself.

Get a cap from a camera, and use it to collect the volts off the bridge, and short and repeat a few times.

Then add the 2 extra diodes and collect the result in the same (first shorted) cap. You will see way more volts this way.
I do not know why this is.  MK1 pointed this out to me and he is right.
These are all normally unseen and wasted voltage spikes.
Now that we can see then, we can use them.

Jeanna

This double rectifying and many other things I have been noticing  lately keep reminding me  of  a large scale diode array that I remember reading about on this  site  a few years ago

The guy made a large array of diodes and believed  he was capturing  energy from the  random vibration of atoms.....if I understand his project

I am wondering   if his  ideas can be incorporated into  a JT.

What if we made a secondary with  a diode every dozen or so  turns.......


gary

[jeanna]

Hi Gary,

I don't know how I would do that.
I mean by interrupting the secondary to add a diode, wouldn't I be messing with the action too much?
and would it look like a bunch of taps with a diode in each tap?
I seem to remember something like that one.

I guess you could try it?

jeanna

[MrMag]

http://www.overunity.com/index.php?topic=6123.msg169507;topicseen#msg169507

The post above is on pg. 311,  Reply #4663 of the "Jule Thief" thread.

If you read more of ist's posts and try to understand what his work is about, that might help to understand him better.

Then, again, ist is ist.
But, he does have more than a little experience in electronic bench experimentation and I've found his suggestions helpful in high voltage electronic engineering.

--Lee

Are you serious? He just put on a good act. The guy built a bunch of coils but he never put power to them. He just showed them off and bragged how smart he was. If anyone would ask him a question he would just say that you wouldn't understand. Out of the 3000 some posts that he has here, how many of them show an actual working device. He's all talk. I could go on but since he cannot defend himself, I'll leave it at that. There were a few good people that left this forum because of him.

[dasimpson]

so no one else can tell me what this device is ment to be also