Ring launcher: high voltage + high current + plasma triggered switch = extreme acceleration + fun
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- Опубліковано 24 тра 2023
- Don't try this at home! A setup like this is potentially lethal.
I've shown a few videos before, but in this video I explain a bit more about the workings. Also, I have now "matured" the setup such that it works reliably, and it is mounted on a compact board.
The main elements of the setup are the coil and ring, and a triggered spark gap (plasma switch). This switch can switch 1000+ Amps easily, while costing only a few cents.
If you wish to know more, just let me know in the comments!
Edit: I see the video is rotated... Sorry! Will try to fix it; so far no luck. - Наука та технологія
"Never try this at home" So question where did you try that?
Lol, good question :p
⚡🙉
Schweeet :)
I want to build one of those , but I have electrolitic capacitors wich are polarized and I try to take good care of them I am worried about damaging them from the backspike from the coil , do you think a UF diode across the coil would stop the backspike ? Wich diode would you choose ? I guess a small uf4007 diode won't be enough or am I wrong ?
A small diode will probably explode (been there done that). I believe that, if the LCR circuit is designed right, the current will have an "overdamped" shape i.e. the current will not become negative. You could simulate (for example in LTSpice) your circuit to see if this belief is correct
@@kloppertje Mm...yeh I kinda thought same , like using some method so the capacitor would not discharge completly , for example using some kind of fuse in series that would blow up and open the circuit before reaching 0 v , that would make me feel more confident
@@rodriguezfranco3839 I don't fully grasp/remember the workings of a spark gap (as used in this video); perhaps they stop conducting electricity when the current goes through zero?
Although this is not good advice, I have never had an electrolytic capacitor explode with my setup 😅
And please, please be aware of the dangers of a setup like this; it's no toy
You are right brother , I am sorry I forgot about the sparkgap , I was thinking about some other chanel I saw wich was manually shorting the gap with a chicken stick , yeh it would stop probably before 0v
What is that golden thing with the heatsink? A bleed resistor?
Correct! When power is disconnected, or when a fault situation occurs (for example, over voltage), and after every shot (in case the spark gap doesn't trigger the main charge), the bleeder resistor is active.
@@kloppertje Wow, thanks! That's a very beefy resistor then :P. Necessary of course if you want a quick discharge.
How are you getting 1000A out of a capacitor thats not 1000A?
The capacitor doesn't have a current rating! It has an internal resistance (
@@kloppertje I thought that a capacitor could only give out as many amps ask its rated for an farad?
The unit for capacitance is Farad, the unit for current is Ampere. These are two different units :)
@@kloppertje how do I figure out a capacitors max amps ? Like example i have this huge 4.5LB nichicon capacitor its 100000uf and 100v how do i find out its maximum amount of a amperage it can deliver?
@@SheikhN-bible-syndrome Look at the datasheet! Some capacitors have a rated current, for example: www.ftcap.de/fileadmin/user_upload/produktboxen/elektrolyt_kondensatoren/webboxen/Loetfahnen/LF2012.pdf
However, special "discharge" or "flash" capacitors or whatever they are named can handle high discharge currents, see for example: www.cde.com/resources/catalogs/7P.pdf
I'd say discharge current is here limited by ESR, as I don't see a maximum current. But I didn't read the datasheet thoroughly.