Hello Vasik,
I apologize, I was down-under because of some tooth-extraction last friiday, so it took my a while to get rid of
the side-effects of the narcotic and had no "brain" to study your documents which I will do ..promised.
wow, that puls is extraordinary, so this might be the technique the Korean Procon-Company (disappeared) was using. I followed the Link to this video here at the discussion on skif.biz and watched it in amazement.
You certainly know it. Their website is still in the archive:
[url]https://web.archive.org/web/20160305034226/http://www.procongroup.org/run-m-bike.htm[url]
concerning this Computer-Transformer, it is here on page 44.
[url]https://www.skif.biz/index.php?name=Forums&file=viewtopic&t=4922&pagenum=44]https://www.youtube.com/watch?v=Vp96a-fVPss[url]
You certainly know it. Their website is still in the archive:
[url]https://web.archive.org/web/20160305034226/http://www.procongroup.org/run-m-bike.htm[url]
concerning this Computer-Transformer, it is here on page 44.
[url]https://www.skif.biz/index.php?name=Forums&file=viewtopic&t=4922&pagenum=44Google Translation from his post:
To understand the tricks of the magnetic field, let's look at the swing transformer of a conventional half-bridge computer power supply
I am not shure what he meaes with "swing-transformer" but I think he is not talking about half-wave rectifier but of the centre-tapped fullwave-rectifier, but I am not sure.
https://indieseducation.com/rectifier/using this old core-configuration with tape-wound-core because these have separated the two coils on each leg
of this core-type. They have used this configuration in order to avoid capacitive coupling of the coils.
https://de.wikipedia.org/wiki/Datei:Schnittbandkerntrafo-07kva.JPG...now you learn some german
"tape-wound-transformer = Schnittbandkern-Transformator"...Trafo is short-term.
I think, you would like this chip here:
https://www.analog.com/en/products/ltc6992-1.htmlProblem, one needs a provider for reflow technique to solder it on an adapter.
One thing I would like to suggest to you which I learned from a friend of mine (electronic engineer) 2 years ago:
If you puls or capture flyback-pulses into a electrolyte capacitor you need to add in parallel to it a few
of those MMLC here, because the electrolyte-Cap is much too inert to adapt to a fast rise-time and simply can not
take in the full energy of the puls so it is burned at the resistance of the leads and within the electrolyte fluid:
[url]https://en.wikipedia.org/wiki/Ceramic_capacitor#HF_use,_inductance_(ESL)_and_self-resonant_frequency[url]
You should also use the low-esr type of elecrolyte-cap to further minimize the losses and for the MLLC's the highest
voltage type you can get.
So you might put these values in parallell, one piece of each value is enough
- 100 pF
- 1 nF
- 47 nF
- 100 nF
- 470 nF
- 1 myF
- 10 myF
The inverse is also true and this is where it is used in professional puls switching circuits with high current demand (30 to 100 A in 20-to 50 ns) - H-Bridges for example.
He told me that if you do not apply this technique the electrolyte-caps might explode right away.
They tested it for sure.
I have a professional H-Bridge from Analog Devices where you can see theses arrays. Will post a pic later
You will notice the difference.
Mike
Author
Topic: About different things (Read 6792 times)
