Bedini SG

[selamatg]

Selamatg, good to see you got your circuit working. I cant tell from the picture but are all your transistors mounted on a conductive surface? IF this is the case you need to isolate each one from the other, the back of the transistor is the Collector pin as well. You can choose to mount them on separate heatsinks or you can cut a little insulation pad out of a suitable material, gasket paper perhaps. IF the pad is conductive you have all collectors joined BEFORE the output diode, when they should be joined AFTER the 1n4007 (or equivalent).

Ren,
I put electric insulator under the transistors already, so all transistors only connected after 1N4007 diode.

Selamatg

[theremart]

Ok measured ohms on coils

1.8 ohms on second coil.

3.7 ohms on first coil.

( my fault unbalanced coils. )

[mrbreau]

Spool Making

It is actually harder to upload the photo than to make a spool, or so I think.

Anyway, here is a picture of the five steps I make building a spool from a discarded CD case.

I see the photo IS included in this post.

My labor is cheap and the parts are free!

Warren
..

[Sephiroth]

It is actually harder to upload the photo than to make a spool, or so I think.

Anyway, here is a picture of the five steps I make building a spool from a discarded CD case.

I see the photo IS included in this post.

My labor is cheap and the parts are free!

Warren
..

Very creative!

[theremart]

At last...

All heat problems gone. I rewound the spools now running 3 transistors all of them are cool so the problem was the coils.

I did something different, for my trigger coil I first put the power wind down first then I put the trigger coil. Works like a dream

So nice to have 3 multi coils running, 12 V front end 36 V on the back end. The amount of copper on the coils was the problem.

I did talk with a friend of mine he said I could achieve the same results on my coil by simply cutting the trigger coil winds in half as adding a choke ( the relay) .

Turning 6 lbs of magnets generating with my wind generator 32V in the cap at 1053 RPM, with primary at 12V and pulling .8 Amp.

I will sleep good tonight

[selamatg]

My SSG low COP

Hi everyone,


I have much work today with my SSG, the best COP after about 17 cycle (charge / Discharge ) only 0.39 and the average only 0.34.

Please advice anything to to increase the COP.


Thanks and regrads,

Selamatg

[selamatg]

New small SSG

Hi,


Attached my new SSG using disc with 4 square magnet, the speed about 380 RPM, not measure yet about the result (COP).

regards,

Selamatg

[theremart]

Increasing COP

My advice is to put the batteries on the charging side in series to 24V.

As this guy did...

AionAlchemyâ„¢ - radiant

Watch his video, and you see he achieved greater than cop>1 but took much effort.

Mart

[gmeat]

Hi Sep and Everyone,


Sep, Have you done any comparisons as far as charging a battery with and without the choke on the trigger?.Also,Have you been able to achieve more than 2 or 3 pulses using the LED?.I'm thinking that the more pulses will = more radiant,After all the more the coil collapses,Well,You getting the picture?.I'm currently using a 2 magnet setup on an old microwave oven induction fan motor which makes a nice little SSG by the way ,And with the choke that I use I can get up to 8 pulses per magnet pass.What do you guys think.


-Gary

[theremart]

RE: testing

Hi Sep and Everyone,


Sep, Have you done any comparisons as far as charging a battery with and without the choke on the trigger?.Also,Have you been able to achieve more than 2 or 3 pulses using the LED?.I'm thinking that the more pulses will = more radiant,After all the more the coil collapses,Well,You getting the picture?.I'm currently using a 2 magnet setup on an old microwave oven induction fan motor which makes a nice little SSG by the way ,And with the choke that I use I can get up to 8 pulses per magnet pass.What do you guys think.


-Gary

With the choke I am definatly getting charge, as much I don't know. All I know I have not had a charger on my batteries for a while like 2 weeks.

I now have a SCOPE however I do not have any scope probes

they are on order from .... china so when they get here, I will at last see what is comming out.


But comparing to what was before to now, it has definately improved the speed of rotation, and I have not lost that much in charging. That is charging 24/7 with the auto battery swapper.

Since I have moved up to 24V I have burnt 2 transistors ( I hooked up the batteries up wrong ( bad mart ) but I have learned to label ALL of my cables and have sealed the boxes for the circuits.

I do like being at 24V I sure am seeing the batteries starting to condition, the voltages are going all over the place, rising falling.... I think when I was at 12V I was not really conditioning them at all.

They seem to be holding charge longer now. Unlike me I need sleep

But I do think a test comparing the choke would be a good idea.

I also think we should try different lengths of trigger wire. A good friend of mine said it operates like a transformer. We really don't want that much voltage on the trigger size if we put less wire, or use a smaller gauge I think we might find a better more optimal method. He also said that his trick was to ever 1/4 of the way to put a loop out of the trigger wire as you wrap it. he then burns the wire off that part then moves the alligator clip to vary the length of the trigger wire. I did not do this when I wound mine, but it would be very easy for me to do now that the trigger wire is on top. This might even save on wire so that I could use it for more coils

I put a hydrogen cell on my output of windmill coil. It was putting out 14V at .1 Amp lots of fun...

Mart

[ren]

Hi Mart, the loop in the trigger wire is similar to the way a potentiometer works. I think there is lots of room for experimenting with the triggering, but I would encourage everyone to try some of the other circuits too. Or perhaps some of the back end configurations.

If you want to try a different form of triggering try using a hall switch, JB has a few of his that are hall switched, you can tell because they have a little timing wheel with magnets for the triggering. Transistors are triggered by current I think, not voltage, although they do need a minimum amount of voltage for triggering obviously.

Try a bedini/cole half circuit or a pulsed discharge on the back end, it will broaden your SG world.

[Sephiroth]

Hi Sep and Everyone,


Sep, Have you done any comparisons as far as charging a battery with and without the choke on the trigger?.Also,Have you been able to achieve more than 2 or 3 pulses using the LED?.I'm thinking that the more pulses will = more radiant,After all the more the coil collapses,Well,You getting the picture?.I'm currently using a 2 magnet setup on an old microwave oven induction fan motor which makes a nice little SSG by the way ,And with the choke that I use I can get up to 8 pulses per magnet pass.What do you guys think.


-Gary

Hi Gary,

I am still conditioning the new batteries but expect that to be finished within a week. then i can do some accurate comparisons with performance... conditioning the batteries one at a time seems to work a bit better since I have such a low amp draw.

I can achieve more pulses then I can see using the strobe creating multiple pusles is no problem, but creating single low amp pulses is a bit more fiddly...

I have found fastest rotation for amp draw on my model is actually with two pulses so I want to do test to compare multiple pulses as well.

Though I have a feeling single pulses may perform better than multiple pulses. I think if the second pulse follows too closely behind the first pulse it may disrupt flyback voltage and the quick on/off of the magnetic field... though that may depend on the inductance of your coils... also Back EMF may be an issue with multiple pulses. I am guessing you would want the field to collapse when the magnet is completely clear of the core to reduce the Back EMF interacting with the flyback voltage.

So... plenty of theory to work on! Just need some results now! Will let you guys know!

[selamatg]

My advice is to put the batteries on the charging side in series to 24V.

As this guy did...

AionAlchemyâ„¢ - radiant

Watch his video, and you see he achieved greater than cop>1 but took much effort.

Mart

Hi Mart,


Is that way a save? running 12V on driving battery to 24V on charging batt....
With my previous normal battery 12V to 12V taking more than 20 hours from 12.00V to 12.82 to charge 12vdc - 70 AH batt.

I try your advice and only taking 30 minute to get same voltage increasing (12.00-12.85)..

The other change is the speed is faster about 10 Rpm in my 24" bike wheel rotor..

I hope this will not making any worse with my battery.....


Regards,

Selamatg

[theremart]

RE: run at 24V

Hi Mart,


Is that way a save? running 12V on driving battery to 24V on charging batt....
With my previous normal battery 12V to 12V taking more than 20 hours from 12.00V to 12.82 to charge 12vdc - 70 AH batt.

I try your advice and only taking 30 minute to get same voltage increasing (12.00-12.85)..

The other change is the speed is faster about 10 Rpm in my 24" bike wheel rotor..

I hope this will not making any worse with my battery.....


Regards,

Selamatg

Great! I see the same type of increase when I run on the charging side to 24V. less time to charge. You just have to be VERY careful about your connections 24V fries much faster than 12V ..... ( please don't ask me how I know )

Yes speed is faster as well, so in theory sharper pulses to the charging battery. Ever since I saw this video of this guy I have been charing at 24, and 36 V on the back end. But if you goto larger batteries you will need to get a higher rated pot, especially if you move up to multi coils. Just ask Jetis

Mart

[selamatg]

Hi Mart,


Is that way a save? running 12V on driving battery to 24V on charging batt....
With my previous normal battery 12V to 12V taking more than 20 hours from 12.00V to 12.82 to charge 12vdc - 70 AH batt.

I try your advice and only taking 30 minute to get same voltage increasing (12.00-12.85)..

The other change is the speed is faster about 10 Rpm in my 24" bike wheel rotor..

I hope this will not making any worse with my battery.....


Regards,

Selamatg

Hi,

I just found in the morning, my digital AVO meter reading different value (lower) so I guess my previous post incorrect with voltage reading.

But for increasing on charging are correct...I'm sure that double (faster) than using 12-12 batt system...

would be interesting try 12 - 36 batt system and see the result..
Please advice me on this.

Sorry for the mistaken...


Selamatg