Electrical igniter for gas engines A keystone to understanding by Magluvin

[Magluvin]

Well, Im not getting much output from the sec on the 2 core inductor. I messed with it for quite some time. Not much more than 1.5v into the 22uf from a 22uf.
I reread the pdf. This config should be able to output as much as in, as it says, this one doesnt multiply the flux.
It nay contain another problem. As the pic shows in the pdf, it looks as if you could have the cores touching. But later examples and text indicates there should be a fair amount of space between cores. I have maybe 1/16th in of 2 layers squished as a spacer for the 2 core.

Have not got to the 3 core, but I am worried that the cores touch at the corners.

I am going to wind a 3rd coil on the 2 core before rewinding the connecting winding to separate the cores. But I think its worth trying this way for now for comparison, while I have it together. And the 3rd winding can just remain on the large core during the change.

I also have to try other inputs as this may not be what this thing wants to work properly.

Back later

Mags

[Magluvin]

Havnt messed with the coils tonight. Was thinking about the beginnings of the BC and what was the point in the first place. And I remembered...

This all started when I was doing the sim some months back. I called it the precharge circuit. When the switch was closed, the source(battery) charged a cap through an inductor and diode, providing nearly 2 times the source voltage to the cap when the cycle finished.

But all the energy was from the battery, pulled from it by the flywheel. Even when the cap reaches above source voltage, the flywheel had enough to load the cap to near 2x source voltage.

Then we add the recycle diode.... and some how I deviated from battery source to a cap source.   Thats where we lost it.

We had it.

If we have a battery 100v as the source in the BC, then we cutoff the source when the cap reaches 50v. The cap hasnt reached full 100v charge from the batt yet. But the inductor recycles the cap to near 100v. 

Did we save?

Ya know, I went to cap-cap in hopes to make ease of figuring results, power in power out.

Think about it. Its there. Its there in a form of more into the cap than what was taken from the battery.

The key is part charging the cap from the source while the source is connected. The inductor just happens to be in the path of that charging.

So if we cut off when the cap reaches 50v, what ever the inductor gets into the cap beyond that is free.

It would be different if we just charged an inductor directly and when source is disconnected, the inductor dumps its energy to the cap. The reason its different is in our setup, the cap is reaching 50v while the inductor is charging.  ;]

I am going to go over it carefully over the next couple days.

Something I have learned. Just because what we got out, isnt  enough to get it all back to the battery, doesnt mean we didnt get more out.  ;]  Need over cop 2 for that.

Mags

[Magluvin]

Think.  If the inductor/diode can give this high eff transfer, 100v source to charge the cap to 100v, then if we cut off the source when the cap reaches 50v, thats it isnt it? We didnt take more than that from the battery at that time..

Silly

Mags

[forest]

Like Tito said : battery could overcharge or explode. Dead batteries are used as a set of capacitors.They have large surface area while also shorting too much current , but may be damaged.
I have such very dead battery and it seems that can be charged but once you connect small load like 5W bulb it lights only for less then a minute from surface charge (like capacitor).

[Magluvin]

We see differences between using a cap as a source vs a battery. The cap, if its the same value as the receiver cap, drains as it discharges and the voltage along the way declines, where the battery is virtually constant compared to the cap.

This is why we only get near the same voltage transfer with the caps and with the battery we get near 2 times. Because the battery voltage doesnt decline like the cap as a source.  maybe a 1F cap as source?  I have one.

What we will need to do is have a good way to determine how much power was taken from the battery vs how much was stored in the cap.

As I determine if the multi core inductors will help here, I have hopes that they will help to increase any gains from the battery sourced BC  BBC   lol

Ok lunch is over.  Back later

Mags