Simple Inverter

[boguslaw]

Do you have explanation how Meisner circuit works ? Why is there electrolytic capacitor ?

[SkyWatcher]

Hi boguslaw, thanks for reply.
Not positive, though the capacitor shows around .7 volts on it when operating. It may drive the base more properly by absorbing the spikes from the trigger winding, which may explain why this circuit runs with far less heat in transistor compared to standard joule thief at 12 volt input.
Though, sure there is a more accurate explanation somewhere on the net.
peace love light
tyson

[SkyWatcher]

Hi folks, been focusing on lighting fluorescent hot filament bulbs with higher voltage, similar to what people have done with ignition coils and such, though in this case, not quite so high of a voltage.
Have built a few different transformers over the past few days, using the Meissner oscillator circuit to power them, as the heat and efficiency seems better.
The latest model seems to be working very well.
The core is made from two, glued together home speaker audio crossover, solid ferrite rods.
Then, 6 layers of 30awg. magnet wire, for around 1500 turns with electrical tape between each layer.
Then, on top of that, 4 layers of 16 gauge speaker wire, for 56 bifilar turns, or 28 primary turns and 28 trigger wire turns.
The bulb seen running in the image, has a blown filament on one side and is still lighting very nicely.
Not completely sure if the bulb is somehow still using the other filament to help light the bulb, or if the high voltage alone is lighting the bulb, which is the goal.
The cfl shown is a 13 watt, using 680 milliamps at 12volt input.
Share your thoughts on this, as the goal is to light these bulbs without using the filaments, or basically a blown bulb that would not work in a normal wall socket, even if the cfl electronic ballast was fine.
And feel free to share any experiments of lighting fluorescent lights that are essentially blown or like a neon glow tube or cold(warm) cathode fl.
Thanks.


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peace love light
tyson

[SkyWatcher]

Hi folks, decided to post this here since it is an inverter circuit as well.
Was testing another Alexander Meissner oscillator circuit again and discovered it can charge another 12 volt battery using the typical diode off the collector primary winding, while running a 13 watt gutted cfl at very useable brightness.
The brightness of the cfl only drops slightly when connecting the charging battery, the input drops from 540 milliamps to 390 milliamps when connecting the 12 volt charge battery.
Though maybe of even more practical value, with this normally wasted collapsing field being used, the transistor is cool.
Since heat in the transistor when powering these gutted cfls at higher brightness has been an issue, this seems to be a way to keep them cooler and derive some benefit and also is evident, that the heat is caused by the collapsing field of the coil.
Also, hooked a 450 volt-2400uf capacitor instead of the battery and it charges to about 60 volts, very slowly climbing from there and when placing a 25 watt incandescent across cap., lights brightly and can then hold the filament lit dimly, all while the cfl still remains lit at close to the same brightness.
A 120vac-4 watt incandescent lights and holds at around 23 volts on the capacitor.
So probably a load rated for around 1 watt at around 20 volts would be best.
Using 4 ferrite beads for core, 1600 turns of 30awg. magnet wire for secondary output to gutted cfl, one layer of bifilar 24awg. magnet wire on top of that.
So the input is dropping 100 milliamps or more when the capacitor and bulb load is connected and transistor stays ambient temperature and when the capacitor is disconnected, the cfl gets slightly dimmer and the transistor gets warm.
Just thought this may be worth sharing.
peace love light
tyson

[aaron5120]

inverter circuit

Hi folks, decided to post this here since it is an inverter circuit as well.
Was testing another Alexander Meissner oscillator circuit again and discovered it can charge another 12 volt battery using the typical diode off the collector primary winding, while running a 13 watt gutted cfl at very useable brightness.
The brightness of the cfl only drops slightly when connecting the charging battery, the input drops from 540 milliamps to 390 milliamps when connecting the 12 volt charge battery.
Though maybe of even more practical value, with this normally wasted collapsing field being used, the transistor is cool.
Since heat in the transistor when powering these gutted cfls at higher brightness has been an issue, this seems to be a way to keep them cooler and derive some benefit and also is evident, that the heat is caused by the collapsing field of the coil.
Also, hooked a 450 volt-2400uf capacitor instead of the battery and it charges to about 60 volts, very slowly climbing from there and when placing a 25 watt incandescent across cap., lights brightly and can then hold the filament lit dimly, all while the cfl still remains lit at close to the same brightness.
A 120vac-4 watt incandescent lights and holds at around 23 volts on the capacitor.
So probably a load rated for around 1 watt at around 20 volts would be best.
Using 4 ferrite beads for core, 1600 turns of 30awg. magnet wire for secondary output to gutted cfl, one layer of bifilar 24awg. magnet wire on top of that.
So the input is dropping 100 milliamps or more when the capacitor and bulb load is connected and transistor stays ambient temperature and when the capacitor is disconnected, the cfl gets slightly dimmer and the transistor gets warm.
Just thought this may be worth sharing.
peace love light
tyson

Hi Tyson,
I this a variant of the last diagram you posted at page 2 of this thread? Can you be so kind to post an updated diagram of this circuit? I am interested in charging a battery at the same time, lighting some gutted CFLs!
I guess you keep on using the legendary 2N3055 in this circuit, don't you?
Keep on with your good research, and thnx!

[SkyWatcher]

Hi arron, thanks for the reply and kind words.
To charge another battery with the meissner variant circuit, all that was done, was place a diode off the collector of transistor, like the typical bedini setups and the other wire from top of coil to battery.
If this is not clear, let me know and will then make a drawing for you.
The thing is, especially after watching an old att bell phone learning video about waves, posted at OU forum.
AT&T Archives: Similiarities of Wave Behavior (Bonus Edition) - YouTube
Is that the main reason the meissner circuit is able to charge batteries and capacitors the way it was setup, is most likely due to waves reflected from the gutted cfl back into the circuitry.
Meaning, energy that should be absorbed by the bulb through oscillating wave frequency, is not being used to make more light in the bulb and so not exactly what we want.
So decided to try a simple joule thief variant again, with a capacitor across the base resistor, to see if these oscillation waves could be close to fully harnessed and come closer to resonance.
Indeed, when a 4.7 nanofarad, 1200 volt capacitor (salvaged from cfl circuit) was placed across the 2Kohm base resistor, the light output of the cfl went very high and very little heat is within the transistor and current draw dropped.
Whereas, without this capacitor, the current draw is higher and the light output much lower and the transistor becomes hot.
So, either this circuit is now much closer to resonance or it is more efficiently converting all the wave oscillations into useable light, within the gutted cfl bulb.
The 13 watt gutted cfl shown lit in the picture is to bright to look at for long, as it will burn into the eyes, would guess it is lighted to at least, 75%-80% of full brightness.
And all that from a 12v, 500 milliamp input or around 6 watts.
Here is the simple circuit and a couple pics.


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peace love light
tyson

[SkyWatcher]

Hi folks, here is a video link of the super ringer in action.
Super Joule Ringer Variant - YouTube
Very pleased with the performance of this setup and very cool transistor.
For anyone interested, please feel free to ask any questions or offer comments or share anything similar or possible replications of this setup, thanks.
peace love light
tyson

[Flumen]

Hi arron, thanks for the reply and kind words.
To charge another battery with the meissner variant circuit, all that was done, was place a diode off the collector of transistor, like the typical bedini setups and the other wire from top of coil to battery.
If this is not clear, let me know and will then make a drawing for you.
The thing is, especially after watching an old att bell phone learning video about waves, posted at OU forum.
AT&T Archives: Similiarities of Wave Behavior (Bonus Edition) - YouTube
Is that the main reason the meissner circuit is able to charge batteries and capacitors the way it was setup, is most likely due to waves reflected from the gutted cfl back into the circuitry.
Meaning, energy that should be absorbed by the bulb through oscillating wave frequency, is not being used to make more light in the bulb and so not exactly what we want.
So decided to try a simple joule thief variant again, with a capacitor across the base resistor, to see if these oscillation waves could be close to fully harnessed and come closer to resonance.
Indeed, when a 4.7 nanofarad, 1200 volt capacitor (salvaged from cfl circuit) was placed across the 2Kohm base resistor, the light output of the cfl went very high and very little heat is within the transistor and current draw dropped.
Whereas, without this capacitor, the current draw is higher and the light output much lower and the transistor becomes hot.
So, either this circuit is now much closer to resonance or it is more efficiently converting all the wave oscillations into useable light, within the gutted cfl bulb.
The 13 watt gutted cfl shown lit in the picture is to bright to look at for long, as it will burn into the eyes, would guess it is lighted to at least, 75%-80% of full brightness.
And all that from a 12v, 500 milliamp input or around 6 watts.
Here is the simple circuit and a couple pics.


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peace love light
tyson

Hi Skywatcher, thanks for posting all the info and videos I am experimenting with the ferrite beads and I was wondering how you actually wind your coils - especially the 1600 turns: do you wind one length and then from the end that you finish that first winding, wind back - in the opposite or same direction and so on? Or, once you reach the end of the first wind, do you then tape that end and bring the wire back to the starting point and wind another set of turns? Or do you use some other method? In another thread, Lynxstream was talking about making multiple parallel secondries - on his aircore coil, is that what you are doing, too, or do you somehow wind one long 1600-turn secondary
Also - do you glue the ferrite beads together? Thanks!
Sorry for all the questions!

Flumen

[SkyWatcher]

Hi flumen, thanks for the reply.
The ferrite beads are glued together using super glue, though regular epoxy can also be used.
The 1600 turn-30awg. magnet wire is one long wire with gaps left at end, wound back and forth and a layer of heavy duty clear packing tape is between each layer overlapping ends of each layer, (mainly because ran out of electrical tape) though seems to work fine and is more uniform.
Hope that helps and feel free to ask more questions if that is not clear, also please share any results if you wish, thanks.
Also have to edit the % of full brightness numbers relative to an incandescent, though not sure if it's because an extra long lead was used to hang the 13 watt gutted cfl from a ceiling fan blade.
Though comparing with a 40 watt incandescent in same spot,the cfl looks to be just below that light output, maybe 35 watts.
Still though, very pleased that this circuit works without heating the transistor.
Will see if the brightness can be brought up with this joule thief variant while still keeping the transistor heat low.
peace love light
tyson

[SkyWatcher]

Hi again folks, just wanted to mention the fact that this circuit can also light burnt filament fluorescent bulbs, so it's practical value is much greater, due to this fact.
So these bulbs can last very long, without having to throw them out.
peace love light
tyson

[SkyWatcher]

Hi folks, this is as much light as can be squeezed it seems, from this particular transformer/cfl combination, though very pleased by the efficiency and light output.
Nickz, this may be close to what you were hoping for, maybe.
Took some comparison pictures of a 40 watt incandescent in standard 120vac socket and the gutted 13 watt cfl is being powered by the super joule ringer variant.
Only thing that was changed in the circuit, the base resistor is now 1.5 Kohm and the input is 12 volts, 620 milliamps or around 7.4 watts.
The gutted 13 watt cfl is putting out more light than the 40 watt incandescent bulb, would guess the 13 watt gutted cfl is probably the equivalent of a 50 watt incandescent bulb, in light output.
Hope this is of value to anyone, comments greatly appreciated and sharing.
This first pic is both lights running side by side, the 13 watt cfl is on left.


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This second pic is the 13 watt cfl running alone.


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This 3rd pic, is the 13 watt cfl casting its light on the wall.


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This 4th pic, is the 40 watt incandescent, casting its light on the wall.


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peace love light
tyson

[Flumen]

SkyWatcher, thanks for the info on the coil! When I've got something working I'll post the results.
Looks like you've had great success with your system there
Congratulations!

Flumen

[aaron5120]

Skywtcher,
Many thanks for your efforts in showing us the power of the circuit in comparison with the performance of a 40 W incandescence bulb. Very convincing. Nice work.
aaron5120

[gene gene]

Tyson,
I too would like to thank you for the pics & all your hard work here. This appears to be a very efficient circuit with a good amount of light. I hope to replicate soon and will post results.
Gene

[totoalas]

hi sky
have you tested in 220 v ac led lamps

thanks

totoalas