Johnny Aum Oscillator Led Light Circuit

[Wistiti]

Hi Sky!
Thanks for the info.
Im curently out for the week. But will try it when i be back to home.
Ciao!

[SkyWatcher]

Hi wistiti and anyone else trying these circuits.
After winding another 24awg. magnet wire coil, 6 layers this time, with clear packing tape between layers, i would not use something as thin as 30awg., i would use 24awg. or maybe even 26awg. might work.
I have managed to get just about the same efficiency as the night light circuit, while using 12 volt input with the 110 volt led diodes within the gutted ikea 3 watt bulb.
The 24awg., 6 layer coil is 2.3 ohms total.
With this circuit, i am using 2 megaohm resistor, 151 picofarad capacitor, TIP3055 NPN transistor and 2N3906 PNP transistor.
Input is 12.78 volts at 9.8 milliamps or 125 milliwatts, for equal or slightly greater light output as night light.
Frequency is not audible.
peace love light

[SkyWatcher]

Hi all, Here is my latest circuit, it is still using the modified ikea led bulbs, this one is using the 2.8 watt led bulb, with circuitry removed and since this bulb contains 12 volt type leds, a resistor was needed on the positive rail, to control the output and input.
A resistor with potentiometer in series, could also be used to create a dimmer control.
At 320 milliwatt input, it provides more than enough light output for most all activities. Though the light output can be raised even further or to maximum, by lowering the 100 ohm resistor value and you can get full brightness, without using the full 2.8 watts, that i can tell you, though it depends on what your light needs are.
peace love light

[thaelin]

Hello there Sky:
I just caught up on what you are doing here and was very impressed. The amount of illumination from such a small input is very impressive. This has been one of the stumbling blocks in an ongoing project I am involved in. I wish to personally thank you for posting your great results so that others can benefit from them. Your many gifts will come back to in the future.

thay

[SkyWatcher]

Hi thaelin, thanks for the kind words, i hope someone is finding these circuits useful, besides me.
Have you tried this circuit yet, the 12 volt or 4 volt version.
I'm curious about the project you are working on.
peace love light

[Wistiti]

Hi Sky.
Hi try a quik reply but have some heat issue on the npn transistor... I will have to investigate more on it.

Have you try with "open core" like ferrite rod, half of a tv yoke/flyback core, etc. ...?

Thanks!

[SkyWatcher]

Hi wistiti, funny you should mention it, i just finished working on trying to improve efficiency even further, by using a TV ferrite yoke core.
This yoke core allowed me to further enhance efficiency, am using both halves of ferrite core, nylon zip tied tightly together, with 24awg. coils wound on both sides of yoke core.
I am getting the same light output as the night light circuit i posted, for only 51 milliwatts.
I will post circuit and picture of it lighting up the bathroom, in same spot as previous picture i posted.

Could you share the parts you are using wistiti, also coil and core description.
I have not had any issues with heat.
peace love light

[SkyWatcher]

Enhanced night light

Hi all, here is the enhanced efficiency version johnny aum night light.
It is using both halves of a TV yoke core, nylon zip tied together and has equal light output as previous night light circuit, though is using less than half the input power.
peace love light
Actually, after comparing with previous night light picture, maybe this one is 75 percent as bright, though still plenty of useable light.

[ricards]

Into Solar Panel to Feed Input

Hi skywatcher,

that is a really efficient lighting.
judging from information from other websites on google about watt-lumens conversion, I could tell the huge difference you are getting from such low Input.

provided your measurements are correct. you are presenting a very obvious overunity(based on mainstream understanding of watt-lumens). now have you tried a different load? like I would suggest an Incandescent Bulb?. or better yet have you tried to loop back?.. the lumens into watts via solar panels.

My point is you have already proven that circuits worth, might as well take it to the next level.

I have some Ferrite cores, I could try that circuit myself.

[SkyWatcher]

Hi ricards, thanks for the reply and good tips.
I think the numbers are correct, because after running the first generation night light, the one that draws 109 milliwatts, it ran for 14 days at around 8 hours per day, which correlates to the capacity of the li-ion battery pack i am using.
Each lithium ion cell is around 1 amp hour and 3 are in parallel, so 3 amp/hours times 3.8 volts is 11.4 watt/hours, which is good for 105 hours of runtime.
And the light ran for 112 hours, at some point, the light was beginning to dim of course, but not until the very end.
I will give some thought to the loop back idea, thanks ricards, we shall see.
peace love light

[SkyWatcher]

Hi all, i am working on building a multiple circuit light, powered from the same source battery.
It will use separate circuits, each circuit with its own ferrite toroid core.
I also tried using transistors that anyone can get from the shack, 2n3906 pnp and 2n2222 npn.
The ferrite toroids are just over an inch in diameter and using one layer of 24awg. magnet wire on each toroid.
I am able to get a little more light output compared to the first generation night light that uses 109 milliwatts, i placed them side by side to compare to be sure.
Though with this circuit, it is only drawing 88 milliwatts or 4 volts at 21.6 milliamps.
I think using the smaller transistors for both pnp and npn allowed the circuit to use less and give a little more.
The logic is, by using less input for each independent circuit, the overall efficiency is greater and quantity of light output, rather than pumping a lot of current into one bulb, which reduces overall efficiency.
I have 2 modified led bulbs to use at the moment and 2 circuits, i will expand with more circuits as i get the parts.
peace love light

[catrinisin]

Hi Sky, great work on this circuit! Thanks for sharing.

Just wondering if you have made any further progress since your last post in December?

Thanks again!

[SkyWatcher]

Hi catrinsin, i did make a light using 3 separate circuits, fed into one bulb.
Similar efficiency, just more output.
I still use my original night light every day and it works very well.
peace love light

[SkyWatcher]

Hi, someone made me aware my circuits were missing in this thread, this should be most of them.