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Joule thief running a CFL? Answered

I've seen a lot of videos of people making joule thieves to power CFLs, with only one or two cells. (These actually work, right?) However, most of them require large (larger than a soda can) inductors and/or ignition coils and transformers. Is there any joule thief (or circuit) out there capable of running a CFL at full brightness, with around 6V, but at the same time being as small and uncomplicated as possible?

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PaulS376 (author)2017-07-07

ya it is just add a third coil to the joule theif torid thingy but wrap it long enough to have around 110 to 120 v.

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Re-design (author)2010-05-21

Yes it is possible.  I don't have a diagram right now to do it but I used to have a small camping lantern that ran two small conventional florescent lights on 4 d cells.

The electronics were very small and the coil was not very large.  I doubt that the coil will have to be very large.

I'll look later and see if I can find or figure something more on this.

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.Unknown. (author)Re-design2010-05-21

That'd be greatly appreciated.
P.S: You seem to be answering a lot of my questions, and your answers are usually the best. Thanks.

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Re-design (author).Unknown.2010-05-21

Here's a youtube video of a flor. light running off a single pinlight showing that it can be done but not how to do it.

Here's a site with several battery powered fl llights.  You might get enough info here to convert one of these circuits.

Here's a great "Make" article.


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user

That youtube video is a good example but provides no help with where the wires are connected

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lemonie (author).Unknown.2010-05-24

The same principle applies, adjust the number of turns in the inductor (which you can find in old radios) It's the same principle, just bigger than your average Joule-thief..

L

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.Unknown. (author)lemonie2010-05-24

Would've been great...if it ran on less than 6 volts, and didn't have a large inductor...

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