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| Renewable Energy Discussion on various alternative energy, renewable energy, & free energy technologies. Also any discussion about the environment, global warming, and other related topics are welcome here. |
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Aaron's SG
A Bedini circuit I built with a reel to reel motor John gave me
a few years ago. Pretty cool and interesting SG. Very fast and very efficient. Charges batts pretty good. I never measured efficiency. If I put 1 batt bank on the output or 4, it doesn't really change the input it doesn't care. Of course can grab the shaft to increase the load and the input does not increase. 5000 rpm it draws 1 amp avg 10,000 rpm it draws only 1/5 of an amp avg Video clip: http://www.esmhome.org/library/aaron...i/aaron-sg.wmv |
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Shamus SG
Very Cool! Schematic looks good. Very nice bare bones ssg.
Those alkaline batts aren't the best but they can be charged at least a few times from my experience before having to throw them away. I'd recommend using some 6v and/or 12v gel cell batts...the black body type you can get at radio shack or elsewhere. Those are good to learn with. The hum you discovered is the circuit is self oscillating at high frequency. Most likely this is what is happening. If you have a scope on it, you will see something like this pic. ![]() I played with my roller skate motor for months before doing anything else. Not even trying to charge anything with it. Will learn a lot more if you just get obsessed about the bare basic model first without doing anything else. In my opinion. |
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@Aaron: Thanks for the clarification. I think I've learned what I need to from the SG by itself--needless to say, there's probably more secrets in that thing than I've found so far. It continues to surprise me, especially in light of how simple it appears.
I'm sure you're probably aware of John Bedini's sense of urgency in wanting people to learn the technology (as expressed in this message). I have every reason to believe that he's right, and mostly from what I've been seeing from independent sources. The time is short. And I'm sure you'd agree that this isn't the place to discuss such things. ![]() At any rate, I've started some preliminary load testing, and the data so far is encouraging. Under the first load test, the battery took about 45 minutes to discharge down to 12.00V (under a 25W load running from a voltage inverter). Charging took about 30 hours to get it up to 13.46V (have to retune the thing for a PSU). Running another load test, the battery took about 60 minutes to discharge down to 12.00V under the same load. So there's something very interesting going on here. I'll post more details as testing progresses. |
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conditioning batts
Hi Shamus,
Sounds like great progress. The capacity of your battery is growing as you condition them. You are literally changing the properties of the battery. Should grow in capacity and take less and less time to charge up to the same level. John has known the urgency for years but it isn't until recent times that people are paying attention. With gas prices going up and insane politics, people are starting to pay attention. The Bedini technology and water fuel cell technology are my two favorite ones to focus on. |
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Well, I'm in round four of charging and things haven't been coming along as well as I had hoped. I'm not going to stop here until I see a solid trend, but the preliminaries thus far are not encouraging. That and the fact that it takes about 30-40 hours for one charge cycle!
![]() Load times are staying fairly flat so far. Here's the numbers so far: Code:
Charge T Chg End V Ld St V Load T
-------- --------- ------- ------
12.85 00:44
32:50 13.46 13.34 00:57
29:48 13.47 13.36 00:48
40:20 13.89 13.52 01:03
Now I've read where John Bedini says that the number of turns on the coil isn't important, nor its size. Maybe I'm getting some cross-conduction on my transistor (since it's 2N3055, which John considers junk)? I don't know how to check for that. John also says that you want the highest resistance on the base so that you get the highest RPM for the lowest current. Currently the RPM on my circuit is fairly high, and the base resistance is right around 1100 ohm.Anyway, I'll post more results as they slooooowly come in. ![]() NOTE: The missing data in the graph around hours 9-10 and 16-22 are due to an outside obligation at the time and the need for sleep. ![]() Last edited by Shamus : 08-30-2007 at 04:35 PM. Reason: Missing info... :-P |
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will speed up
Hi Shamus, on these smaller systems, the charging will be much slower, but usually after many rounds of conditioning, the charging back up will get quicker and quicker.
A 5 coil setup (4 power 1 trigger) of about 18 guage 100 feet long each is for more practical application but before doing that in my opinion...getting the whole personality of the motor you have down is very crucial, in my opinion. |
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After winding and rewinding several different coils, I have built one that I sort of like (for now). I had previously built a SSG with a 26+24 AWG so I used that as a base for a coil. On top of that I wound trifilar 20 AWG as power coil.
The motor works ok I suppose, what I'm wondering about is why do we need to tie all the multi-filar strands in the power coil together in parallel (for the circuit that does not have transistor per each coil)? When I keep them parallel I get about 100V radiant spikes, but when I tie them in series then I get little over 400V. Isn't it better to have higher potential? Are we looking for less or more resistance in the power coil? What about the trigger coil, should that be on a higher resistance? Also, the conclusion I came to is that 2N3055 is a joke compared to MJL21194 and that even for beginning circuits everyone should use the later. There's just a magnitude of quality difference between the two that cannot be ignored. My motor just purrrrs nicer with MJL21194 and can be fine tuned to a better degree than with 2N3055. ![]() Next I'm adding this Cap Pulse Timer circuit (link from Bedini_SG Yahoo group, I'd figure most of you are members there, no?) , has anyone else built this one and has any experiences to share? Oh forgot to add this. I built this coil and it worked (sort of because I did not wind to that size but smaller) but only if I pointed it in reverse (power coils toward the rotor). It was producing all kinds of strange sounds and would draw quite a current (1-2A sometimes). Somehow I could tune it down to 400mA and I'd get over 300V radiant spikes as well. Funny thing is that I have never seen my NE-2 bulb light up (dimly) when I touch the collector of the transistor on other setups except this one, and there was no primary or secondary batteries connected. Is this normal behaviour and does it happen for you or did I stumble upon something unexpected? Last edited by amigo : 09-13-2007 at 01:14 AM. Reason: added more text |
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Hola Amigo,
What is the difference between the 2N3055 and the MJL21194? I know the characteristics of the other parts (the 1N914 is a fast switching diode, the 1N4007 is a high power/voltage diode, etc) but when it comes to transistors I don't know squat. What are the characteristics that we're supposed to be looking for in this part? Power rating is one, but I have no idea what the others should be. If you don't know, maybe someone else who does can kindly interject. ![]() |
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Sometimes things just stare you in the face and you don't realize the implications until much later, when the connection finally manifests itself to you in a form so clear that you wonder why you didn't see it before.
![]() All of this arose because I was thinking of Rick Freidrich and the struggles he's gone through trying to convince people of what they had with the SSG. And the problem probably stemmed from the fact that most people don't have any understanding of conventional electronics theory--they just built the things, connecting the parts as shown in the schematic, and didn't really think all that much about it. So in the midst of pondering this, all of the sudden it hit me like a ton of bricks! ![]() Take a look at the picture and circled part. The way the diode is hooked up means that absolutely no current will flow at any time according to conventional EM theory. The positive from the charging battery is blocked by virtue of being connected to the cathode of the diode coming off of the power coil! So simple! Yet so diabolically clever! The way that diode sits in the circuit (again, according to conventional theory) means that it's basically an open short--you could remove the diode and battery completely because they have absolutely no path where a current can flow through them! ![]() After going through several charge/discharge cycles, you have to wonder just what is charging the battery? 'Cause it sure ain't electrons! ![]() Last edited by Shamus : 09-13-2007 at 06:23 PM. Reason: grammar, grmbl ;) |
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Hi Shamus,
That diode does indeed pass current (and the more the better! :-). Think of it as a compression diode. When the transistor first turns on, the current from the battery is temporarily attenuated by the coil. Current will not flow until the magnetic field is built up around the coil. Consequently, when the transistor turns off, that field collapses and produces a high positive voltage right where the cathode of that diode is. If this voltage is not bled off, it will increase on subsequent cycles and blow up your transistor in many cases. It is this energy that is extracted buy the interaction of the magnet, coil and pulses that charges the battery so well. Voltage alone won't charge these batteries. They need a combination of high voltage and low impedance in short duration pulses. Note on batteries: Batteries take a while to become conditioned. Don't get discouraged if they don't work so great even through the first 10 or even 20 cycles. It usually doesn't take that long, but there are different types of batteries, sizes and chargers that make this an inexact science at best. None of the Bedini machines work that well on unconditioned batteries. That's one of the reasons I think people get discouraged. It also takes a while to get used to how the machines work. The SSG is an awesome machine for learning about this technology. The more you fool around with it and experiment, the more you will learn. It is a very simple machine electrically, but it embodies all the concepts Bedini has worked so many years to discover. It's all there for those who are patient and persistent. It just takes a while to learn. Ted |
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has anyone ever tried to use AC on a bedini sg?
the reason i ask is that i wonder if you could use the wall current, and return it back to another outlet and reverse the Electric Meter outside. you would in a sense be "recharging" the electric company. in most states (in the US) they will pay you for power generated and sent to them. this would eliminate the need for 20 - 30 car batteries, noxious fumes, you could eliminate your electric bill, and possibly make some extra money on top of it. is this possible? -bryan |
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In one of my experiments (now it escapes my mind whether I had that "weird" coil or was it a normal one hooked up - should start keeping lab notes, sigh) I used my DC power supply set to 12V as a primary.
I left the motor spinning and walk away from the desk for a bit. Came back and just looked around the desk then gazed up at the voltage indicator on the psu and it showed 16 or so volts. I was thinking what a ... so I unplug the motor and lo and behold the voltage went back to 12V. It would appear that the motor was feeding back some potential/energy back into the psu, while at the same time charging the secondary battery and spinning pretty fast. Sorry it's not directly AC related but I figured it might be relevant... |
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i wouldnt be comfortable trying the AC experiment myself, as my electrical knowledge is old and rusty. i would be a bit nervous about doing major damage, shocking myself, or who knows what else.
i figured someone would have tried it by now, or at least thought about it. |
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Charging batteries
Adam,
Since it is a cold charge there are no fumes generated when charging the batteries with the SG charger....batteries never get even warm. Aaron, correct me if I am wrong....but I believe the voltage spikes going into the battery are AC, not DC. (the neon light that lights up when it is running is a 120v ac light) Yes, Shamus, (Kevin hangs his head in shame- ) I am one of those guys that took the schematic, some explanation from Aaron, and some TRV data and just built it. Did not concentrate too much on how it worked...only as much as I need to in order to get the most usable energy for the energy spent. |