Originally posted by Allen Burgess
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lasersabers circuit question
Originally posted by Lidmotor View PostIt is too bad that they still cost alot. Lidmotor
1pc Warm White GU10 4w LED Spot Light Bulb Lamp 4X1W 30-45°
Specifications:
Base Type: GU10 Socket
Led Color: Warm White (3000-3500k)
Output Power:4.0W
Lumen: 360 lumen
Input voltage:85-265V
Light Source: 4 x 1W LED Chips
Beam Angle: 30-45 degree
Body temperature: <60
LED work tempetature: <65°C
Life Time: >50,000 hours
Heat Sink Material: Aluminum, zinc metal alloy
Dimensions:62MM(H) x 49MM (D)
Package include: 1pc led bulb.
I bought these cheap sockets $1.45 (for 2, free shipping) to mount them as well.
Question:
Lasersabers diagram/circuit.
I don't understand his coil winding, the primary. It shows two wires leading in, and two wires leading out. I am referring to:
http://www.energeticforum.com/attach...ger-ringer.jpg
Where it shows the primary wind... (and it says "20 winds").
There are two wires going into the core, one leads off to the paralleled cap + resistor (and then through the diode to the base), the one beside it, is twisted to one of the two that leaves the wind. And it appears both of those are connected to the metal back of the transistor (collector?)... and +13v ?! Then, the last one connects to the collector too? Is this a bifilar primary? I must be wrong, this all appears very strange to me. Someone please set me straight. A normal schematic would be really helpful. Thanks
For the circuit that Xee2 and Lidmotor have been working with... is it possible to use a 120v - 12v transformer that does not have a center tap, thus has only two leads in, two leads out? I can't order from Radio Shack, in Canada... they will not ship to Canada.
Thanks----------------------------------------------------
Alberta is under attack... http://rethinkalberta.com/
Has anyone seen my Bedini Ceiling Fan that pushes the warm air down, and charges batteries as an added bonus? Me neither. 'Bout time I made one!!!!! :P
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Use two identical TF?
Hi guys,
Nice progress you are making
I wonder what happens if you take two identical transformers and use the first one with Xee's circuit and use the second one to transform the voltage down:
So, the idea is to take an identical TF in the place of the led bulb and transform the high voltage down again.
You may be able to draw quite some current from the second one, like powering an incandescent light bulb.
In principle, you should be able to use a diode bridge to rectify the signal, but you have to make one using fast diodes, because standard diode bridges are too slow:
http://www.energeticforum.com/148127-post1979.html
And you could also use BJT's as a diodes fore that:
Why BJT is used as diode?
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Mon onduleurs replications:
First one with 2200 electrolytic capacitor, and one 11 W cfl...
Second one (improved version: different resistors: instead of 4,7 k i have put 47 k resistors, and different transformer): i loaded two 11 W cfls (full brightness) + 220 V led torch which i used to light my multimeter...
All together: pretty nice circuit, but i worn you: don't you try to use different capacitors, they have to be 2,2 uf!
Cheers!
Update:
two 11 W cfls full brightness for just 10.2 Watts, isn't that kind of free energy?Last edited by cikljamas; 11-18-2011, 02:14 PM."There is no love without prayer - there is no prayer without forgiveness because love is prayer - forgiveness is love." Virgin Marry - Immaculate Conception ...The geologists say it's not in the ground, the airforce says it's not in the air, the astronomers say it's not from space, so we are running out of options...
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Hi folks, Hi jamas, thanks for info and pics.
I built the circuit and my transformer is buzzing away, though for some reason at 6 volts input its drawing 470 miiliamps and at 12 volts it's drawing 3.6 amps, with only a led christmas string hooked up and it's not even full bright.
Though the NPN transistors are not getting hot. Obviously it should not be drawing that much amperage, essentially without a load.
Something is amiss with my setup, any ideas folks.
using ST13007 NPN and STP16NF06 N-channel 60 volt-16 amp cont. mosfets and 2.2uf caps and same resistor values given.
Almost sounds like the frequency might be too low, maybe this could be part of the problem, not sure.
peace love light
tyson
edit: ok, i've lowered the 4.7kohm resistors to 1.5kohm and it sounds like a better frequency and it's now drawing a more realistic 350 milliamps at 12 volts input for the christmas led string and its beyond full brightness now. So it seems the frequency was too low for my transformer and i probably need to up it a bit more as well.Last edited by SkyWatcher; 11-18-2011, 02:36 PM.
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Originally posted by kcarring View PostFor the circuit that Xee2 and Lidmotor have been working with... is it possible to use a 120v - 12v transformer that does not have a center tap
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Originally posted by SkyWatcher View PostHi folks, Hi jamas, thanks for info and pics.
I built the circuit and my transformer is buzzing away, though for some reason at 6 volts input its drawing 470 miiliamps and at 12 volts it's drawing 3.6 amps, with only a led christmas string hooked up and it's not even full bright.
Though the NPN transistors are not getting hot. Obviously it should not be drawing that much amperage, essentially without a load.
Something is amiss with my setup, any ideas folks.
using ST13007 NPN and STP16NF06 N-channel 60 volt-16 amp cont. mosfets and 2.2uf caps and same resistor values given.
Almost sounds like the frequency might be too low, maybe this could be part of the problem, not sure.
peace love light
tyson
I hope it's gonna help you to improve your circuit!"There is no love without prayer - there is no prayer without forgiveness because love is prayer - forgiveness is love." Virgin Marry - Immaculate Conception ...The geologists say it's not in the ground, the airforce says it's not in the air, the astronomers say it's not from space, so we are running out of options...
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Hi folks, thanks for quick help responses.
ok, i've lowered the 4.7kohm resistors to 1.5kohm and it sounds like a better frequency and it's now drawing a more realistic 350 milliamps at 12 volts input for the christmas led string and its beyond full brightness now. So it seems the frequency was too low for my transformer and i probably need to up it a bit more as well.
And now i lowered the 4.7 kohm resistors to 1kohm and i got the amp draw down to 100 milliamps on this led christmas string which is close to proper amp draw, leds are almost full brightness.
So for anyone else building this circuit, if you are using different transformers, you will have to adjust the 4.7kohm resistors to adjust frequency, works like a charm now, mosfets are cold. Now to try bigger loads.
Oh all the npn transistors and mosfets were salvaged and they work great, get lucky sometimes.
peace love light
tyson
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Originally posted by Lidmotor;(content removed)@Xee2
Your extreme simple setup still looks like a major winner to me because almost anyone can gather the parts and have the whole thing running in one afternoon.
(content removed)Lidmotor
Thank your Sir! I have replicated this circuit using the RS Transformer and a TIP31 NPN Transistor with both 0.1 and 0.22 capacitors and different combinations with resistors of various ratings. My power source is a small 9V battery from the dollar store rated for low power applications. For me, a certified CI (circuit illiterate) this is a blast. Using the 0.1 cap and 10K resistor I could get a nice light (maybe 50% or lower brightness) from 40ma. Using a 1M Ohm Pot I could light at < 15ma, decent light at 50ma and very nice light at 85ma.
This one is going into a box and will occupy a place of honor in the “MAN CAVE”. What a pleasure you have given with this simple and effective setup. No science fiction here, this one really works.
Brad S
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Originally posted by SkyWatcher View PostHi folks, thanks for quick help responses.
ok, i've lowered the 4.7kohm resistors to 1.5kohm and it sounds like a better frequency and it's now drawing a more realistic 350 milliamps at 12 volts input for the christmas led string and its beyond full brightness now. So it seems the frequency was too low for my transformer and i probably need to up it a bit more as well.
And now i lowered the 4.7 kohm resistors to 1kohm and i got the amp draw down to 100 milliamps on this led christmas string which is close to proper amp draw, leds are almost full brightness.
So for anyone else building this circuit, if you are using different transformers, you will have to adjust the 4.7kohm resistors to adjust frequency, works like a charm now, mosfets are cold. Now to try bigger loads.
Oh all the npn transistors and mosfets were salvaged and they work great, get lucky sometimes.
peace love light
tyson
I have to increase 4.7 k resistors to the value of more then 10 k (to be more precise anywhere between 10 k and 56 K should be OK values for my circuit), but it depends much of load too (of course), so...
Folks, you could use electrolytic capacitors too (with same results), just be careful when you determine direction (see flip-flop circuit)...
For driving two 11 W cfls it is the most superb inverter that anyone could offer...
So, enjoy it and light you houses for awesome price...
Cheers!
Big thanks to french guys!"There is no love without prayer - there is no prayer without forgiveness because love is prayer - forgiveness is love." Virgin Marry - Immaculate Conception ...The geologists say it's not in the ground, the airforce says it's not in the air, the astronomers say it's not from space, so we are running out of options...
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No amp draw increase.
Like Stiffler asks; How many LEDs can we light with the SEC oscillation? I need to buy more bulbs to find out. Lidmotors inverter amp draw increases with additional bulbs, let's see what the "Ringer" can do!
Originally posted by xee2 View PostWow. No amp increase at all. Amazing.
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FYI -some other work with the multivibrator ckt
Originally posted by Lidmotor View Post@KEhYo07
Thanks for posting that link to the SIM. I didn't get a chance to work with it is because I went ahead and built the circuit. I had all the parts except the transformer so I used the 12v one that I had on Xee2's circuit. The circuit ran good. The Xee circuit is much simpler but I do really like this "French" circuit. Here is a video of it running:
The French inverter circuit - YouTube
@dragon
It does run a little too fast. I didn't scope it but when I listened to it with my little radio you could tell that it was higher than 60 hz. The only real problem that I had with the circuit was the IRF510 mosfets from radio shack didn't work. I tried some IRF730 that I had and they worked fine. . This setup looks like a very good "put it in a box and use it" situation.
@Xee2
Your extreme simple setup still looks like a major winner to me because almost anyone can gather the parts and have the whole thing running in one afternoon.
@Cherryman
Thanks for post the link to that French video. That was a real find with good information---even if I didn't understand a word of it. The pictures were good and told the whole story.
Lidmotor
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More good news
@All
I found out that the "Flip Flop" circuit will work on a transformer that just has the four wires (no center tap). All you have to do is just use one half of the circuit with one mosfet and leave the other half alone. This is good news to the guys who are having trouble finding the center tap transformer. The amp draw seemed higher but it is a way around the problem. You can find the center tap transformers pretty easy though if you look around. It is a common item.
Lidmotor
PS----I too am wondering about the efficiency numbers of these things. It is pretty good bang for the buck.Last edited by Lidmotor; 11-18-2011, 08:45 PM.
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Hi folks, well I tweaked my french inverter circuit, ideal resistor value for mine is 1150 ohm instead of 4.7kohm.
With my transformer winds, it can't output much current for anything other than led strings, though it could light dimly a 25 watt incandescent.
I will make another transformer for higher power, this one will be strictly for led lighting.
It seems to run the led strings very efficiently.
In the picture are 94 leds at full brightness at 12 volt- 260 milliamps or 3.2 watts.
Now the purple led string has 60 leds and is supposed to draw around 4.8 watts and the multicolored 2.4 watts or so.
So indeed, this circuit is performing well. Here are a couple pics.
Uploaded with ImageShack.us
Uploaded with ImageShack.us
peace love light
tyson
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Unity Light.
This video consists of my running two 120 volt LEDS around 180 milliamps in draw with no visable change in source battery voltage drop. It ran for half an hour before I started the video and an additional fifteen. Proof it's running at unity in resonance. One can fast foward through this one.
endurance - YouTube
The results of both experiments indicate that this circuit may be looping power back to source. Hence, the zero increase in amp draw with an additional bulb, and the absence of voltage drop when running at peak resonance.Last edited by Allen Burgess; 11-19-2011, 02:18 AM.
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