BobZilla's Custom Build

[aln]

This machine will keep you busy for a long time, nice smooth running, thx for sharing.

[BobZilla]

Charts are auto scale, nothing I can do about that.

Look what I received today folks,,,



With this I can run regular poles.

[Brodie Gwilliam]

you should post your charts with the same voltage divisions if you can, as it can be misleading at first glance

[BobZilla]

Heya Patrick,,,Yea the primary chart looks crazy. Those are two 100AH in series on the front(remember folks that when in series you are doubling voltage but not gaining any capacity). All of these batteries are several years old and they are AGM so I'm sure they are not sill working as advertised but they do run real loads very well still.

I only made one adjustment throughout the run, about half way through. Other than that all the fluctuations are natural, either the batteries or the magnetic fields being disturbed by people proximity.

By the way I am starting to play with a different style right now which looks promising. I have my draw down to 900ma with a 1 and a quarter dump cycle and it seems to be doing well. I could also go the other extream and hammer the crap out of the cap. All about trying different things at this point in time. I can run the machine up to about three amps on the input before she starts growling back so you can imagine there are many ways I can approach it.

[min2oly]

Hi Bob - Good mornin' to you.
what a radical line on the primaries... what is the combined amp hours on them. I imagine you mention in the vid I'm downloading now... :-)
KR- Patrick

[BobZilla]

Hello everyone,

Today I am posting a cap-dump run I did. This was 24v on the front and 12v on the back. The charge target was one of my 75AH AGM's. I state in the video that those 75AH batteries are normally charged in mode 1 so I expect there is a bit of an internal fight going on in the battery switching back to POS current. The run is not all that efficient when you consider it had 24v on the front however I know I can improve on it. I had not done any cap-dumps with the new system until this video, only a few short tests to calibrate my dump time and input.

I could change things up quite a bit if I want too. The input was at 1 and a half amps from the primary. The cap was set to be off for 600ms and on for 150ms which made the complete cycle three quarters of a second. This produced about a 30 volt dump which discharges to about 20v before cycling again. All of this info is in the video below but I am typing it in here for those who cannot download the video or don't care too.

Here are the charts:





And a video of the run in progress:
https://files.secureserver.net/0snBejkOeuubim

[BobZilla]

Thanks for uploading those Guy

Anyone having this problem, there is a fix. Ian (Peth) solved it in his post about transistor matching.

Hi Bob,
Yes it was a bit of a pain for as I have not been on forums for a while click in the immage icon that brings up a box with options, in the bottom right hand corner there is a "basic uploader" that is what I ended up using.

Ian

[Tom C]

as far as I know there is a 740 by 480 limit I think. but I do know Patrick a while back had this problem I think, I do not know how it got fixed.

Tom C

[guyzzemf]

BOBZILLA pics

[BobZilla]

Here is a picture of the error....

https://files.secureserver.net/0s2fUKqyTyv1gC

Tom do you know if there are size or resolution restrictions with the new forum?

Originally the files were larger so I tried making them smaller but it was the same result so that was when Ilinked the small ones externally. I remember while back Aaron did something to fix this same kind of thing. It's not that big of a deal to me since I can post links to them but it is just nicer when they get embedded into the post as an image.

[guyzzemf]

One_bubble_memory_track_and_loop.png
pic insert ck

[Tom C]

I just checked your profile there is nothing there that would not allow you to post, since the forum was migrated there may be a few glitches to work out.

Tom C

[Brodie Gwilliam]

once you get a good 24v to 24v run charted id love to see a chart with 36v input and 12v on the charging side, hooked up like this - http://overunity.com/13393/desulfato...121489/image//

[BobZilla]

I still cannot add pictures, don't know why because they are the same size and format as I have always used here.

Anyway I am going to link these from my cloud storage instead but if a forum admin is reading can you look into the upload issue.

Charge:
https://files.secureserver.net/0sFk5M8j8MMSoY

Primary:
https://files.secureserver.net/0s6aZ5dSwoAJyt

[BobZilla]

*edit*
double posted