Captret - Capacitor and Electret

[DreamThinkBuild]

Hi Bill, All,

There is a patent that has an interesting arrangement for using two variable caps and feeding it through a transformer. By shifting the dielectric state back and forth causes it to oscillate putting power through a transformer for the load.

So an idea to test is maybe heat one cap while cooling the second. A small dc motor low rpm with a round cardboard attached. Shade one cap while the other is exposed to the sun.

Patent# 4087735 Solar electric generation using variable capacitors.
http://www.freepatentsonline.com/4087735.html

Fig 1C shows the flow of current as the dielectric changes.

Fig 2 shows if you put a transformer between you can cycle the energy back and forth while still running a load.

[hartiberlin]

I think,
we could just easily build a battery charger for e.g. 12 Volts Lead acid
batteries by using such a Y5V ceramic capacitor bank and apply
a fresnel lens to it and heat it up via sunlight.

The put the cap bank via a relay across the cap bank and
the cap bank will charge up to 12 Volts.
Then interrupt the relay so the voltage can rise on the cap.
WHen the voltage is about 30 Volts, just connect again via the relay
the cap bank to the 12 Volts battery and it will deliver
a huge current spike, until the cap bank is again at 12 Volts.
This will charge up the 12 Volt battery.
You only have to make a timer circuit that toggles
the relay every few seconds or minute or so.
So this  is pretty easy to do.

[Goat]

I think,
we could just easily build a battery charger for e.g. 12 Volts Lead acid
batteries by using such a Y5V ceramic capacitor bank and apply
a fresnel lens to it and heat it up via sunlight.

The put the cap bank via a relay across the cap bank and
the cap bank will charge up to 12 Volts.
Then interrupt the relay so the voltage can rise on the cap.
WHen the voltage is about 30 Volts, just connect again via the relay
the cap bank to the 12 Volts battery and it will deliver
a huge current spike, until the cap bank is again at 12 Volts.
This will charge up the 12 Volt battery.
You only have to make a timer circuit that toggles
the relay every few seconds or minute or so.
So this  is pretty easy to do.

@ hartiberlin

I was researching the ceramic capacitors you mentioned and found the model Y5V here in North America at http://parts.digikey.ca/1/1/1353195-cap-cer-100uf-16v-y5v-2220-c5750y5v1c107z.html

Can you confirm that this is the capacitor(s) you are talking about? 

The price break is very expensive for 1 unit compared to 100...would make sense for people to make a large order...

Price Break    Unit Price    Extended Price
10            6.29000   62.90
100           3.71680   371.68

But still $ 62.90 isn't the end of the world for a small project.  10 caps @ 16V into a battery or into the "Patent# 4087735 Solar electric generation using variable capacitors.
http://www.freepatentsonline.com/4087735.html" that DreamThinkBuild mentioned.

Can we hook these puppies up to our collective PC CPU's....LOL...you know that might just return enough energy to cut some of our power consumption down....

Regards,
Paul

[hartiberlin]

This is the one I bought:

http://www.segor.de/bilder/000097b4.jpg

u47-R5.0-Y5V
470nF-50V 20% Y5V RM5
7,62x5mm, Murata VPE=500

pieces VE   EUR netto   EUR brutto
from 1      0,08   0,10
from 10      0,07   0,08
from 25      0,06   0,07
from 100      0,05   0,06
from  500      0,04   0,05

[Rydan]

Hey guys, just a quick hello and  thanks to ibpointless2 for sharing his findings with his captret idea.
His work has re-inspired me to go open my box of old wires , capacitors and batteries and tinker some more.

I don't normally get much time to tinker due to work committments, but I thought Hey WTF it's Easter and I find myself knocking back a few ales with some time on my hands.

I started off just charging a capacitor and discharging through the captret as ibpointless2 shows in his videos, waiting some then discharing the cap again. Interesting concept. So I thought get some high voltage capacitors - a few hundred volts will do - hook up the captret part to a spark gap and adjust so it fires off itself when the captret recharges itself. I dont know much about this phenonmenon but it feels to me as if shorting something or using a spark gap excities this energy - or starts the pump going so to speak.

It seems this energy is intelligent, and seems to react to my state of being. It could be the ale talking but I have noticed that in certain moods (thankfully im a good one most of the time) - eg bad mood. I cant get this affect to manifest.

Which brings me to my second and current experiment.

2 x dead 1.5 volt batteries (non rechargeable type)
2 x 40v -5600uf caps
super bright white led. (The one that hurts your eyes when it's on bright)

I'm not exactly sure of the white led specs but I think it's a 3v 50ma one. when I connect it directly to the batteries in series - reading 2.85v it barely lights up.

I started off using 1 cap (5600uf in captret style) using the led, the light lit brightlly but was draining the battery.
Originally my combined battery voltage was 3.06v, and after stuffing around with the captret leaving it overnight it was down to 2.85v. Time frame 9 hours.   0.21v over 9 hours - or 0.023v ever hour. When I woke up my light still had the same intensity though just now reading 2.85v.

So  I added another 5600uf in captret style to the first cap and repeated the experiment.
Started experiment @1pm. I had to go out so I left it running. Keep in mind no meter was connected to it. I just connect it when I take a reading.

Came home @ 4pm - circuit left running for 3 hours. Retested batteries - were reading 2.85v. Led still at the same light intensity (hurt your eyes bright) batteries cold to the touch. Led not giving off any heat - luke warm if that to the touch. Seems the batteries are not discharging or charging. will have to wait and see. but quite promising so far.

circuit still running as I write this. want to add another cap to see if this will make it charge. Went to electronic store to buy more alligator connection but were out. bought more booze instead. will keep posted.

Thanks for reading, have a great easter