Eldarion and Bruce's build of Bob's Energy Converter

[eldarion]

Hi Rich,

If you are only putting in 8640J to charge that bank to 12.5V, then you are definitely overunity--by 4x!!!

I gotta get some larger capacitors.

Eldarion

[Thaelin]

I have to verify that you are meaning Farad and not uFarad here. I can find no place to get such caps. 2700 Farad X 6 is one lot of cap. If so can you point me to your seller as I want to get a few to play with. I have two 1F 5v caps and they are neat. Just like small batts.

thaelin

Eldarion, the voltage and current readings from the most recent pictures where taken while still running a light bulb as a load, to show the difference inserting  the chokes made. The capacitor bank is made up of 6 2700 farad 2.5 volt capacitors in series.  When I was charging the 450 farad capacitor bank, the primary input voltage was apox. the same, current fell to 90 ma., apox. 4.5 watts primary input power. The observed charging rate was apox.  .4 to.5 volts per hour. I charged the bank over a 4 day period at 8 hours per day. That would be 36 watt hours per 8 hour charge period or 144 watt hours total. The capacitor voltage at the end of the charging period was 12.5 volts. Each capacitor can store 8400 joules of energy each. So if you charged one capacitor to 2.5 volts by its self and put a dead short load across it, you would have 3360 amps of current until you reached 1.25 volts or half voltage. Just so you know, most of the readings are apox. They would definitely have to be done under more controlled conditions. Oh and by the way happy thanksgiving all. 

Rich

[eldarion]

Hi Thaelin,

Yes, Rich is talking Farads here!   Those are ultracaps (sometimes called supercaps, take your pick).

DigiKey does not stock them, but they do have a catalog entry:
http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=495-2064-ND
And an assembly of 6 like what Rich has:
http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=495-2068-ND

Here's a picture:
http://rocky.digikey.com/WebLib/Epcos/Web%20Photos/ULTRACAP%20150.0L,75D.jpg

I have yet to find a place to buy them for a reasonable price, however.

Eldarion

[Rich SAS]

Hey guy's, I got those ultracaps direct from maxwell technologies.Ã,  http://www.maxwell.com/ultracapacitors/products/large-cell/bcap3000.aspÃ,  Link to the data sheet on a 3000 farad unit.Ã,  Also working on a more sensitive LEM detector setup, using 1n191 germanium diodes. So far looking pritty good. Oh by the way those pc2500 ultracaps where on closeout that's why I was able to get them for 35 dollars each

Rich

[eldarion]

Hi Rich,

Could you please post the two germanium diode LEM detector circuit?

Will it work with Schottky diodes instead?

Thanks,

Eldarion