Selfcharging cap circuit from Larskro fake or real ?

[TinselKoala]

Hi Hoppy,

But it is much younger, only 35 years old because the first number you see as 1 in the 1942 is in fact 7, so it is 7942.  And this means that the first two numbers, 79, represent the last two numbers of the manufacture year i.e. 1979 and the 42 means the week number in that year.

So this reed relay may have many years to live unless Tinsel abuses it which is not likely...   

By the way, Larskro uploaded another video, stating there is no battery: https://www.youtube.com/watch?v=UI_EfWRepIQ

Gyula

Heh...this service is by definition "abuse" for that little relay. It's wired as a vibrator/bell ringer kind of thing and "sings" at 8kHz or something ridiculous, a highpitched whine, and louder than any JT I have. It is already starting to fail, I think. Each second of operation opens and closes the contacts 8 thousand times!

[conradelektro]

I do not understand how the rotor can turn?

The rotor is in parallel with the coil (not in front of it)?

Greetings, Conrad

[Hoppy]

I do not understand how the rotor can turn?

The rotor is in parallel with the coil (not in front of it)?

Greetings, Conrad

Through gears?

Edit: On second thoughts, the motor is centrally aligned with the coils, so no gears. It could be working on the Newman Motor principle? Thus extremely low current working with split high turn coils.

[gyulasun]

I do not understand how the rotor can turn?

The rotor is in parallel with the coil (not in front of it)?

Greetings, Conrad

Hi Conrad,

Larskro wrote under his first video text ( https://www.youtube.com/watch?v=Ln3YVVZbpNo ) that he uses a "motor/gen from a tap-water led light unit".
You surely heard about LED showers where a micro generator is built into the head of a bathroom shower and when using the shower the water pressure rotates the rotor of the generator and there are several LEDs with different colors illuminating the water beams etc.

I found a very similar looking such micro/mini generator at this link:
http://www.alibaba.com/product-detail/water-glow-mini-generator-for-led_361359743.html   

EDIT: I found a mini wind turbine version too: http://easy-taobao.com/taobao/view/id/7844125183

I think the rotor includes permanent magnets only and water pressure turns this rotor, so the induced power in the stator windings can feed the LEDs. Most such mini generators are specified (as I read elsewhere) to give about 5V and 30mA to 100mA current (here is another type: http://www.alibaba.com/product-detail/micro-generator-for-led-shower_361352069.html )

So it is very possible that such generator can work as a motor too, when the stator coils are fed with AC current, in this case pulsed AC due to the reed switch.

So to answer your 2nd question, the coil is the stator coil, and the rotor I think consists of permanent magnet(s) only. He charges up the 0.47F supercap to 1.6V first, then he starts rotating the rotor by his finger and the reed switch starts its ON/OFF sequence and the Schottky diode is supposed to raise the voltage level of the supercap above 3.4V and higher...

Because Groundloop and TinselKoala schematics seems correct, it means that the diode rectifies the AC voltage generated in the stator coils by the normal rotation of the rotor magnets (and not the spikes from the collapsing fields), this AC voltage is chopped of course but its level seems to be enough for continuously charging the supercap and increase its voltage level...

There is this notice under his video from Larskro: "...the little capacitor is a multilayer nanocrystal 0,47uF 25volt, very important."

Why it is important?  Only he knows... but Stefan figured that it may convert ambient heat to electricity as Stefan wrote in the previous page.  Larskro measured the multilayer cap temperature 1°C lower than the ambient, I guess it is a very small temperature difference to give the needed amount of energy for the selfrunning operation, it would be really amazing to be true.  Unless this whole setup is faked, the operation of the ceramic multilayer chip capacitor could be the source of some extra energy...

Gyula

[hartiberlin]

Hi Gyula,
well done summary.

The temperature dependance from Z5U and Y5V ceramic caps and how the voltage can be raised has already been here presented. I did this test a few years ago in 2011:
http://www.overunity.com/9878/captret-capacitor-and-electret/msg271991/#msg271991
New would be to get a constant charge via voltage pulsing, as these caps are pretty nonlinear I guess there could be an absorption from environmental heat to electrcity inside the dielektrikum due to these pulsing and thus convert heat to electrical energy....

You can see there also in this old thread a picture of my caps and my scope with the voltage it produced when heated up...
and also a chart of the differentcapacitor dielektrikum temperature parameters..