Joule Thief

[d3x0r]

That's a thought; have to change scopes around by could probably manage that.

[magpwr]

hi everyone,

I have just uploaded a youtube video of my recent discovery-  Powerful toroidless joule thief
http://www.youtube.com/watch?v=QP8PkgT1T9o

This is the 4th version of my toroidless joule thief circuit as there are other types shown in my youtube channel :sanjev21 which is not using toroid and yet able to light led brightly.This is the final version.

Without the use of  any toroids would take the overall cost building a joule thief circuit to a new low.Here i am talking about avoid buying toroids which cost money unless you got some spares from salvage after which you still need to wind the coils.

The  Powerful toroidless joule thief  circuit can be assembled in less than 5minutes on a breadboard once you got the components ready.

The schematic is revealed in the video.

Component list
2222 transistor
4.7 kohms resistor
10nf capacitor
100uH x 2 inductor
Led

[TinselKoala]

But... but.... Toroids are _magic_, aren't they?




(Just kidding, nice work!)

[Hoppy]

hi everyone,

I have just uploaded a youtube video of my recent discovery-  Powerful toroidless joule thief
http://www.youtube.com/watch?v=QP8PkgT1T9o

That's like a Bedini without the wheel 

[MarkE]

hi everyone,

I have just uploaded a youtube video of my recent discovery-  Powerful toroidless joule thief
http://www.youtube.com/watch?v=QP8PkgT1T9o

This is the 4th version of my toroidless joule thief circuit as there are other types shown in my youtube channel :sanjev21 which is not using toroid and yet able to light led brightly.This is the final version.

Without the use of  any toroids would take the overall cost building a joule thief circuit to a new low.Here i am talking about avoid buying toroids which cost money unless you got some spares from salvage after which you still need to wind the coils.

The  Powerful toroidless joule thief  circuit can be assembled in less than 5minutes on a breadboard once you got the components ready.

The schematic is revealed in the video.

Component list
2222 transistor
4.7 kohms resistor
10nf capacitor
100uH x 2 inductor
Led

Here is the schematic, and an alternate variation that is more efficient.  The original circuit produces sine waves.  The alternate circuit is trapezoidal with fast edges.