Joule Ringer!

[Zardox]

Hi Lidmotor - I have both the circuits setting side by side and both work really well. I think that I do get a little more out of the French inverter but it is also using a little more power. It could be a matter of tweaking the circuits a little more though as I am not limiting the inverter currant like you are. It looks like a good idea though. I was hoping that you might share what MOSFET's and transistors you are using. I didn't have large enough MOSFET's so I substituted 2N3055 transistors which work fine but I do have to use heat sinks. That could be because I am not limiting the currant. It runs a 7.5 watt feit led bulb with no problems. Lights the whole room. It lights the Lights of America 2 watt bulbs brighter than when plugged into the wall. This is real exciting stuff after working on this stuff for so long. I can't wait to see what's next.

[Lidmotor]

Parts

Hi Lidmotor - I have both the circuits setting side by side and both work really well. I think that I do get a little more out of the French inverter but it is also using a little more power. It could be a matter of tweaking the circuits a little more though as I am not limiting the inverter currant like you are. It looks like a good idea though. I was hoping that you might share what MOSFET's and transistors you are using. I didn't have large enough MOSFET's so I substituted 2N3055 transistors which work fine but I do have to use heat sinks. That could be because I am not limiting the currant. It runs a 7.5 watt feit led bulb with no problems. Lights the whole room. It lights the Lights of America 2 watt bulbs brighter than when plugged into the wall. This is real exciting stuff after working on this stuff for so long. I can't wait to see what's next.

@Zardox
I am using easy to get parts on mine. The transistors are 2N2222 NPN. The mosfets are IRF510. When I first put the circuit together I used IRF730s and they also worked. I think that any NPN similar to the 2N2222 would work. The caps and resistors are exactly what the French gentleman showed on his diagram. I tried other values but could not get as good of results. All of the parts I am using you can get at Radio Shack. This IS exciting stuff. You can put a 1N4007 diode at the mosfet, grab the backspike off the transformer, and charge up a cap to about 3o volts. Put a cap pulse charging setup there and off you go.
Jonny's rendition of Xee2"s circuit looks even better for doing that. These circuits can be used as backspike chargers if one wants to go that way.

Lidmotor

[SkyWatcher]

Hi folks, Hi lid, thanks for the vid and info. I dug around for a larger transformer and found one bigger and it already had an 18 gauge bifilar as the step down side. This one must be rated for over 100 watts.
So I wired it up and fired up a 15 watt cfl to full brightness, though my mosfets get hot rather quickly, so maybe heat sinks would help.
It draws 1.4 amps or 17 watts with the cfl. We'll see how the heat sinks work.
This bigger transformer has a 5 ohm secondary and each half of primary is .4 ohm.
peace love light
tyson
edit: yes, heat sinks did the trick.

[jonnydavro]

Thanks Xee and totoalas for the confirmation on the benefits of a base inductor addition
@Totoalas.Your current draw looks great considering the load you are runningAre you using the torroid as your base inductor or is it for something else?
Thanks for trying it out and sharing your results.Jonny.

[totoalas]

Thanks Xee and totoalas for the confirmation on the benefits of a base inductor addition
@Totoalas.Your current draw looks great considering the load you are runningAre you using the torroid as your base inductor or is it for something else?
Thanks for trying it out and sharing your results.Jonny.

you are correct jonny as base inductor the dimension is 1 1/2 by 1/2 by 1/2 inches this i salvaged from an old UPS there are existing 4 strands in the toroid and i just used the thicker gauge maybe 18 awg i just dont have neons in this ckt but all other values are the same
upsate i can light one fluro lamp 10 w out of 6 in parallel
cheers

totoalas

[xee2]

Some tests on Joule thief with jonnydavro base inductor added.

video >>> xee2vids's Channel - YouTube

[Allen Burgess]

Base inductor.

I ran a 5 then 15 watt flourescent bulbs simply by tying a 12 volt relay coil into the base tank of Xee2's circuit, like Jonnydavro. A real snap off the breadboard. It works; won't light without it. I used the same 3.3uf 1k cap & pot values. Now an LRC tank. I plan to press the inverter circuit into the other side of the board. I can build that circuit blindfolded. Lot's of fun!

[xee2]

Joule thief with 120 VAC LED bulb - part 4 (adding base inductor reduces current without reducing brightness of bulb)

video >>> Joule thief with 120 VAC LED bulb - part 4 - YouTube



NOTE: current drop is result of decrease in frequency

[Allen Burgess]

Inductor.

I found it helps just to remove the base resistor altogether when the inductor's in the circuit, as it's not needed. All the circuit needs is one oscillation. The LC tank works as well alone as it's RC counter part, in the lower voltage version. So, I suggest that you take the base resistor out if you put the inductor in.

[totoalas]

Joule thief with 120 VAC LED bulb - part 4 (adding base inductor reduces current without reducing brightness of bulb)

video >>> Joule thief with 120 VAC LED bulb - part 4 - YouTube

Hi Xee2,
the power source 1.5 v dc WOW

So there's a chance for a water / or crystal or cement battery
way to go
cheers
totoalas

[Lidmotor]

My French inverter ---boxed and ready to use

@All
I finished up my French Flip Flop inverter and boxed it up. It is ready to use now. I wanted that to be done before I tried the inductor on Xee's circuit. I will work on the inductor idea tommorrow. It looks like a great add to the circuit.

Here is the boxed French inverter:

French inverter finished, boxed, and ready to use - YouTube

Lidmotor

[SkyWatcher]

Hi folks, Hi lid, thanks for sharing the vid, I'll be doing something similar with a box of some sort.
In case people have not seen this video, it is a simple way to power a non-modified cfl and I would think it would be ideal for the led bulbs people are using, though i have none to test.
Though it did fire up my 15 watt cfl to full brightness.
See what you think.
240 volt joule-thief - YouTube
240 volt joule-thief circuit - YouTube
peace love light
tyson

[SkyWatcher]

Hi folks, Here is that non-modified cfl driver using a joule thief in action.
It is 24 gauge filling the powdered iron toroid, 2" diameter.
2n3055 with needed heatsink and 1kohm resistor, though the resistor gets warm, so would have to beef up that area a little.
12 volt @ 1.32 amps, which is a tad better efficiency than the french flip flop inverter driving this 15 watt cfl.
Though now that I think about it, I'm not sure this would work with the led bulbs, since the cfl bulbs have the step-up transformer inside.


Uploaded with ImageShack.us


Uploaded with ImageShack.us
peace love light
tyson

[Zardox]

SkyWatcher - This circuit is fantastic! I replicated it using an old CRT toroid that I had wound over a year ago and was just laying around. It lights a 13 watt CFL (unmodified) pretty good but wow does it light led bulbs nice. I have burned up a few trim pots playing with this so I am now off to Radio Shack to see what I can find. Thanks for sharing!

[SkyWatcher]

Hi folks, Hi Zardox, thanks for the reply to my post and I am glad you found value in that circuit I shared.
I had an idea when i first saw that french flip flop inverter and tried it out, though have not made extensive tests yet.
Though it did power my 60 led string just as well and charged the heck out of 2-12 volt batteries in parallel of same size.
It is basically a tesla switch modification.
Maybe it will have value to some.
Here is the modified circuit.


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peace love light
tyson