Oscillation below resonant frequency is due to parasitics and inductance in the primary section. It can lead to diodes conducting which is very bad (and smoky :) if a transistor turns on while diode is not quenched yet. From my experiments way back I was expecting overheating or blown up transistor when I saw the waveform. My device often needed spare parts if run for too long with a waveform like that.
@@dwdadevil there still is some parasitic capacitance to the environment, so it can be dangerous if you are close enough, still it's AC, the insulation doesn't really help here
5:32 The voltage reading actually seems right. 230VAC to DC is about 325DC, and when you send that to your coil you get about 650 VPP (notice the VPP icon in the lower right of your scope) It is also counting the overshoots for the VPP calculation
No, it really is wrong. It's just an IGBT halfbridge, not a full bridge, so the peak to peak primary voltage is 325V not counting the overshoots. It sometimes shows over 700V, which would probably destroy the 650V IGBTs :).
Where do the sparks go to? It seems that they just vanish into thin air. Isn’t there a current that has to go somewhere? I really like how you explain all the things that you consider during design and tests. Thanks 🙏
The secondary has a capacitance to ground. The output is high frequency AC. Since the capacitive reactance is proportional to the inverse of the frequency, at 140kHZ the reactance of even such a small capacitor is very low, which lets current flow.
I've never seen an explicit explanation of this, but it would seem like the current density roughly follows the inverse square law (with lots of variation and channeling, etc.) At sufficient distance out, the energy density isn't enough to ionize the air, even though the current is still flowing.
0:35 just tell me one thing. The IGBT used in the circuit is K60B65H2A. But here in this diagram why is it different ? Which one should I use ? Please clarify it.
Impressive power for a halfbridge? - Q I have is your toroid tower, are you just experimenting with different capacitance loading - would a uniform toroid clean you waveform a bit? Also the switching between two waveforms could be a kind of inductive feedback going to the drive circuit. Finally you primary coupling diameter is quite big - if you have a thicker form and closer coupling - you may get more amperage draw draw or better inductance? Keep up the good work 👌👌👌👌👌
Amazing content!! You are a genius, and produce the greatest content!!! I have a question. Maybe future video!,? Is it posable to add dead time to a gate drive transformer? I'm new to EE, Anyway, thanks for all you do!!
If you're game can you scope 1) the voltage on the primary, 2) the voltage on the 11uF capacitor banks. Interested to see if the opposite end of the primary is flailing above and below the rails. Thanks.
Hey Dan. I tryed build this "thing" :D , really like this schematics. i build before few SSTC.. ex: "Skori" from 24V dc 15cm sparks..:D can u help with the driver.. ? "not perfect" from mains, the igbt's shorted, but max 100V input work fine... i wait the new igbt... i can't see any problem on oscilloscope...
I actually build the coil from schematic on your website, similar to this one and Ive seen those strange waveforms on my oscilloscope as well. They seem to appear only when the coil is Close to resonance. I hooked up the primary coil to oscilloscope and connected circuit to low input voltage. As I rotated the tuning potentiometer these "peaks" seemed to get lower and lower as the coil was further away from the resonant frequency.
Are you sure that the other waveform isn't just some sort of a glitch of the oscilloscope ? Those handheld ones tend to be a bit clunky and easily get confused by the voltage induced by secondary, then they jump all over the place
Given how crappily it measures its own battery voltage (often you see fluctuations of ±30% even when idle), I wouldn't trust it with more conplex measurements.
In a helpless attempt to capture the guy who is taking down electric grid WiFi etc police 1:40 turns on siren but there is some black magic going on that allows DGW to remain stealth
Год назад
I can hear your USB devices in the background weren't very happy about the tesla coil in the room.
Lol awesome Yeah ha I had one of those scopes, I tried it once and realized I had one too many of those beers when I ordered it from AliExpress , pulled it apart and trashed it. I believe there is a decent quality one out there, I’d be surprised if all of that reading isn’t from the huge hV emitter /antennae nearby?
Hay Dany ... I pulled a 6ft arc from xray transformer few days ago ... half-bridge with 400A igbts . I got some vid of 4ft vertical continuous arc.. the 6ft arc was horizontal quick drag... also did biggest plasma speaker on yt with a ferrite xray transformer... been doing some interesting experiments I think you may like Take care and happy 2021 Steve
I've just noticed that you were originally using the AOK transistors in parts 5 - 9 but for the mains test you switched them to the DGTD transistors, and you never mentioned why?
Very nice sparcs - love it! Is there a way to roughly measure the high voltage? From the length of the sparcs i would guess it must be in the 250 - 350 kV region?
Didnt you have a large Variac somewhere? If you used that and ran it on smooth DC, measuring stuff would be much easier. Also, I think you should talk about the topload, maybe show some calculations on how the shape and size of it affects its (self-)capacitance.
I have a 10A 250V variac. But if I ran it at full voltage smooth DC, it would overheat. Smooth DC is about 4x the power of 1 halfcycle. There are some online calculators for the capacitance of the topload (toroid, sphere, disk, cylinder), but they don't have an option for my shape :D.
@@DiodeGoneWild Yeah, I meant use the Variac to get about the same average Voltage as with the halfwave rectifier. In case you want to do audio modulation you need smooth DC anyway. It would still give shorter arcs because the peaks are lower, right? I just think this tesla coil series is the best on youtube because you went into so much detail and explained everything very clearly. The only things you havent talked much about are cooling, and the top load. I dont know if you know enough about it yourself though. I was just never happy with the typical explanation of "it's a capacitor to ground". From what I understand, that's very inaccurate. It doesnt have anything to do with "the ground", and instead is due to *_self-capacitance_* instead of *_mutual Capacitance_* which is what we normally talk about. This is also the reason why arcs can shoot out anywhere into the air, as opposed to down to the ground.
I'm too lazy to build a full bridge. Maybe I could do it with IRS2453D or IRS24531D, but if I needed more power, it would be way way easier to just put parallel pairs of IGBTs into the existing halfbridge.
@@DiodeGoneWild But wouldn't a full H bridge double the output voltage and so the arc length would also double? With a half bridge you get 320V p-p, but with a full bridge you get 320V peak, right?
@@drobotk I believe that is correct, but he could also just add a voltage doubler to the input for the same effect with less work (but I believe he may then need higher voltage transistors and maybe also new capacitors).
Grammar school in Mělník, Economics (VŠE) in Prague and a short _English for Foreigners_ course in Sydney. All of his knowledge on the subject comes from 25+ years of experience.
@@soumyapatra9545 No, true. Search the deep web, you can begin at danyk.cz/ja_en.html (the English _About..._ page of his *awesome* website). To find more details about him, you need to use Google Translate (unless you speak Czech) and The Internet Archive.
I wonder what would happen if one touches the sparks. If you are grounded I assume it might kill you? Of you are floating maybe nothing? But please don’t try this out just explain if you know 😀
It wont kill you in the usual way since it is low current at the secondary and high frequency. However it will slowly kill your cells in the body which can be very dangerous if you do it for too long.
It used to be this: ruclips.net/video/LVzngxFMsGs/видео.html But I removed all internals and left just a wire loop. This way I can measure the current drawn from mains using my clamp meter.
Well they can have a use in wireless energy transfer, the sparks were never part of Teslas ultimate goal. Mr Carlsons lab did a video called "Tesla Coil Wireless Energy and Resonance Demonstration" demonstrating the true purpose behind these coils with a transmitter and receiver coil. Sparks are just for fun mostly.
@@uK8cvPAq It is useless for wireless energy transfer, because the transmitter transmits in all directions. The energy losses will add up in orders of magnitude compared to the distance. That makes it totally impractical for any serious energy transport use case. Compared to an ordinary extension cord. So it's just a toy. A lethal toy. Play the video again, pause it at the start and read ALL of the orange text.
put 4 igbt on each side and run it on fully rectified mains .. probably use the power factor control circuit from that dead computer psu .. it should have enough power.
The SSTC is powered with much lower voltage, in this case 320 Vp-p. A SGTC on the other hand is powered with kilovolts. Lower input voltage = lower output voltage = shorter sparks
Der Lichtbogen hat sicher 350.000 V. Da ist es schon gefährlich, sich im Bereich von 2 Metern um der Teslaspule aufzuhalten, denn dort hat die Luft eine sehr starke statische Aufladung. Wenn man sich jetzt in diesem Bereich befindet und berührt z.B. nur die Wasserleitung, dann kann ich mir ganz gut vorstellen, daß man dann einen elektrischen Schlag bekommt, denn die ganze Luft in diesem Raum ist elektrisch geladen.
Wenn die Luft mit + Plus elektrisch aufgeladen ist, dann ist es eine statische Elektrizität, und die ist nicht hochfrequent wie die aus der Teslaspule. Und wenn man in dieser Statischen Elektrizität nahe an einen -- Minus Pol kommt, dann springt ein kurzer Blitz eines Lichtbogens über. Je nach gespeicherter Strommenge kann das sehr gefährlich werden. Richtig. Bei hochfrequenten Strom bekommt man Verbrennungen, wenn ein Lichtbogen mit 350.000 Volt überspringt. Und je nach Stromstärke bei mehr Ampere, brennt es einem die Finger weg. Die Finger sind dann gegrillt.
@hardstyle905 Mir hats auch schon öfter eine g'wischt. Als kleines Kind -- ca. 6 Jahre jung -- sogar an einem Fahrraddynamo, den ich in der Hand hielt, (Massestrom linker Hand und Versorgerstrom an der Schraube, und blanker Draht, rechter Hand) und ich damit einen Kurzschluss machte. Dabei gab es Induktions-Spannungsspitzen, die sehr unangenehm durch meinen Körper zuckten. Ich hab anschließend sehr geweint. Das war mein erstes Erlebnis mit höherer Spannung. -- Als ich so 9 Jahre alt war, machte ich experimentell eine Bekanntschaft mit dem Weidezaun-Strom. Erste mal hin gelangt, tat es nichts, da in der Zeit der Berührung kein Stromimpuls floss. Bei der zweiten Berührung gab es durch meinen Körper einen dumpfen Schlag. Das hat mir gereicht. Seit her mied ich, den Weidezaundraht zu berühren. -- Mein Papa ist sehr leichtsinnig mit dem Strom 230 V umgegangen, und hatte nicht bedacht, daß ein Kabel, wo vorne und hinten ein Schukostecker angebracht ist, sehr gefährlich sein kann. Und so kam es eines Tages, daß das Kabel an der Steckdose angeschlossen war, und ich das Kabel in die Hand nahm und versehentlich mit dem Finder zwischen die zwei Pole geriet. Nun, nachdem ich unter Strom stand und hüpfend den Stecker vom Finger weg riss, hatte ich anschließend einige Brandblasen am Finger. Das Kabel mit den zwei Steckern wurde dann entsorgt. -- Eines Tages fand ich mal so ein rundes, zylindrisches Teil, das zu einem Auto gehört, wo ich dachte, es sei ein Elektromotor. Diesen vermeintlichen "Elektromotor" ich dann -- an seiner Stirnseite -- an 12 V Wechselstrom anschloss. Den einen Pol ich dann mit dem Mittelfinger berührte, und mit dem Daumen den anderen Pol berührte, und mit dem Zeigefinger das rohrähnliche Mittelteil auf der Stirnseite berührte. Dann hat's mir so eine *"gebrrritzlt",* den Schlag ich bis heute nicht vergessen hab, den ich da bekam, der war wirklich entsetzlich. Da wären 230 Volt nichts dagegen gewesen, so weh hat das getan. So erfuhr ich, daß es eine alte Zündspule war, und da fließen bei Anschluss an 12 Volt Dauerwechselstrom doch so an die 1000 Volt dauerhafter Strom. Seither war ich dann sehr vorsichtig mit Strom. -- Nun, elektrisieren kann man sich überall. Zum Beispiel bei statischer Aufladung wenn man aus dem Auto aussteigt, im Winter die Luft sehr trocken ist, und das Auto berührt. -- Im Winter, wenn die Luft sehr trocken ist, kann man sich sogar an einer Katze elektrisieren wenn man sie zuvor auf dem Arm hatte, streichelte, und anschließend am Boden absetzte. Diese elektrischen Schläge fühlen sich wie Nadelstiche an. -- Ein Leintuch, bei warmer trockener Luft gebügelt, kann sich sehr stark aufladen. Gefährlich wird es, wenn man das frisch gebügelt warme Leintuch vom Bügelbrett nimmt und es zusammen legt, dann dann addiert sich bei der hohen Stromspannung die Milliampere. Als ich nach dem Zusammenlegen des Leintuchs, dieses an der Seite hielt und mit der anderen Hand mit dem Finger in die Mitte des Leintuchs kam, bekam ich doch eine ordentliche gewischt. Seither bügle ich bei trockener warmen Luft kein Leintuch mehr. So kann ich mir hier auch sehr gut vorstellen, wenn mit der Teslaspule solche Spannungen bis zu 1.000.000 Volt erzeugt werden und die umgebene Luft durch diese meterlangen Lichtbögen aufgeladen wird, so steht man in mitten eines Spannungsfeldes bis zu 1 Million Volt statischer Aufladung. Und wenn man dann irgendwo in dem Spannungsfeld ein erdgebundenes Metallteil berührt, dann kann das sogar äußerst gefährlich werden, denn das entspricht dann annähernd einer Gewitterladung.
1:50 you measurements are wrong :/ Even a true RMS meter doesn't measure half cycle sine wave voltages and currents accurately,no matter if its an expensive multimeter or camp meter.
I see more problem in calculating real power input than in msms. Power factor of that capacitively loaded rectifier can't be 1. It's much less. W is not the same as VA
I'm afraid it would sound BANG :). DC is about 4x the power of 1 halfcycle. The transistors would probably overheat in a second. The thermal resistance junction to heatsink would be too high.
@@DiodeGoneWildWould it actually be 4x the power? Full wave rectification of ac should produce double the power versus halfwave and I would expect DC 230v to produce about the same heat as fullwave 230VAC. Please correct me if I am mistaken.
Add -even more- salt on the top of your coil. You can paint arcs with yellow color
1:40 'No smoke or desoldering...' Quality control with DiodeGoneWild 😀
"It compiles; ship it!"
@@tactileslut sometimes we software devs do include what we call a smoke test, albeit a bit less literally
Brilliant! Throwing some nice sparks now.
Your cat must be hiding under the bed.
5:20 the PC seems to hate it, too. Can hear the windows chimes going in the background from the wifi and stuff going in and out from all the EMI.
His cat is never allowed to come in during such experiments.
when you turn on the sstc, we can hear like a computer disconnecting from something
Keyboard or mouse usually glitches out when you turn on the Tesla coil
@@panjak323 i was aiming for internet connection idk
@@nunosousa2942 wifi is always fine, only keyboard starts typing on it's own, if I turn on my DRSSTC 😂
@@panjak323 hahaha nice
LOL...Windows is like ..oh hell no. I'm out...
0:57😂😂 . Otherwise ElectroBOOM claims copyright.
Fascinating!
I want to see a PLL version of this tesla coil!
I'm a relatively new viewer.
Now I fully understand the channel name!
Excellent.
"properly grounded"
Yes,killing neighboor shower mystery.
Oscillation below resonant frequency is due to parasitics and inductance in the primary section. It can lead to diodes conducting which is very bad (and smoky :) if a transistor turns on while diode is not quenched yet. From my experiments way back I was expecting overheating or blown up transistor when I saw the waveform. My device often needed spare parts if run for too long with a waveform like that.
Kámo DiodeGoneWild je Čech............
To je celkem zajímavý a dost mě to překvapilo :D
4:22 Aaaaa that large shielding touching the live connector xD
Amazing awesome power desmonstraction tank you.
2:43 man, I wouldn't want to get so close to it, when it's running
Its fine since he isnt grounded
@@dwdadevil there still is some parasitic capacitance to the environment, so it can be dangerous if you are close enough, still it's AC, the insulation doesn't really help here
@@jastrobaron But it doesnt hurt you as mains, it will just move some muscles for milliseconds and then it discharges.
@@dwdadevil Yeah, but still, it's not really safe. If you have some heart problems, it can be really dangerous.
@@jastrobaron anyone that gets hit by a spark like that is going to have heart problems.
Would make a good burglary deterrent for your apartment.
Very nice... Now you have to insert a kind of feedback for let if tune by itself 😃👍
I also wonder it would be more efficient...🤔
Looking at the 'scope I was surprised at the narrow range through which it would spark.
5:32 The voltage reading actually seems right.
230VAC to DC is about 325DC, and when you send that to your coil you get about 650 VPP (notice the VPP icon in the lower right of your scope)
It is also counting the overshoots for the VPP calculation
No, it really is wrong. It's just an IGBT halfbridge, not a full bridge, so the peak to peak primary voltage is 325V not counting the overshoots. It sometimes shows over 700V, which would probably destroy the 650V IGBTs :).
1:17 "windows usb unplug sound" yea i hear that often when high voltage is near a windows pc. probably the usb controller resets.
Where do the sparks go to? It seems that they just vanish into thin air. Isn’t there a current that has to go somewhere?
I really like how you explain all the things that you consider during design and tests. Thanks 🙏
The secondary has a capacitance to ground. The output is high frequency AC. Since the capacitive reactance is proportional to the inverse of the frequency, at 140kHZ the reactance of even such a small capacitor is very low, which lets current flow.
RoboT
Thank you!
I assume that the ground is so abundantly present that we don’t see sparks at that end.
I've never seen an explicit explanation of this, but it would seem like the current density roughly follows the inverse square law (with lots of variation and channeling, etc.) At sufficient distance out, the energy density isn't enough to ionize the air, even though the current is still flowing.
Mystery solved. Thanks!
0:35 just tell me one thing. The IGBT used in the circuit is K60B65H2A. But here in this diagram why is it different ?
Which one should I use ?
Please clarify it.
Amazing. I can't wait to build it.☺
Impressive power for a halfbridge? - Q I have is your toroid tower, are you just experimenting with different capacitance loading - would a uniform toroid clean you waveform a bit?
Also the switching between two waveforms could be a kind of inductive feedback going to the drive circuit. Finally you primary coupling diameter is quite big - if you have a thicker form and closer coupling - you may get more amperage draw draw or better inductance? Keep up the good work 👌👌👌👌👌
This is only the first step to constructing a lightsaber, my young Jedi
I laugh at the new hardware detected sound in the background when there is sparks.
New wireless hardware detected at a distance.
Amazing content!! You are a genius, and produce the greatest content!!! I have a question. Maybe future video!,? Is it posable to add dead time to a gate drive transformer?
I'm new to EE, Anyway, thanks for all you do!!
thats a nice wnd powerful tesla coil nice circuit design 👌
Excellent
Your room is cleaner than mine...
Electronist life
DGW to a neighbor : Come for a drink (beer of course) and some sparks!
When you are turning the SSTC on, we can hear something is getting disconnected from computer and getting reconnected when you turn the SSTC off.
I think this is just Gone Wild. Not enough Diodes in sight. hahahaha
Actually there are diodes in the circuit
If you're game can you scope 1) the voltage on the primary, 2) the voltage on the 11uF capacitor banks. Interested to see if the opposite end of the primary is flailing above and below the rails. Thanks.
Very nice. I'd love to see a breakdown of exactly where that kilowatt is getting dissipated. How much energy is in the actual spark?
He assumed the power factor=1. That assumption can't be correct
Hey Dan. I tryed build this "thing" :D , really like this schematics. i build before few SSTC.. ex: "Skori" from 24V dc 15cm sparks..:D can u help with the driver.. ? "not perfect" from mains, the igbt's shorted, but max 100V input work fine... i wait the new igbt... i can't see any problem on oscilloscope...
I actually build the coil from schematic on your website, similar to this one and Ive seen those strange waveforms on my oscilloscope as well. They seem to appear only when the coil is Close to resonance. I hooked up the primary coil to oscilloscope and connected circuit to low input voltage. As I rotated the tuning potentiometer these "peaks" seemed to get lower and lower as the coil was further away from the resonant frequency.
Isn't this the whole cold electricity thing Tesla said he discovered?
@@georgeyreynolds what do u mean by cold electricity? Could you explain?
@@tomke4318 ruclips.net/video/rXX_g49tLeU/видео.html
Are you sure that the other waveform isn't just some sort of a glitch of the oscilloscope ? Those handheld ones tend to be a bit clunky and easily get confused by the voltage induced by secondary, then they jump all over the place
Given how crappily it measures its own battery voltage (often you see fluctuations of ±30% even when idle), I wouldn't trust it with more conplex measurements.
Jokingly thought, that the strange curve comes from the can of beans...
- Talks about output impedance.
If the primary coil was flipped over, would it still work? Thanks!
That's quite the bug zapper you got there. Maybe you can include a fan on your transistors?
Very nice, Dan! Although it sounded like the coil was interfering with a PC in the background :p
BLACK MAGIC! That's naice of korse.
I'd make a doorbell from this.
In a helpless attempt to capture the guy who is taking down electric grid WiFi etc police 1:40 turns on siren but there is some black magic going on that allows DGW to remain stealth
I can hear your USB devices in the background weren't very happy about the tesla coil in the room.
Your computer keep disconnecting and connecting some stuff. Maybe it's because the noise from the tesla coil
Keep on the good work
one kilowatt of sparks, nice!
2:03 at .25 playback speed ⚡😮⚡
I like it normal speed. Seems more frantic then.
Lol awesome
Yeah ha I had one of those scopes, I tried it once and realized I had one too many of those beers when I ordered it from AliExpress , pulled it apart and trashed it.
I believe there is a decent quality one out there, I’d be surprised if all of that reading isn’t from the huge hV emitter /antennae nearby?
Hay Dany ... I pulled a 6ft arc from xray transformer few days ago ... half-bridge with 400A igbts
. I got some vid of 4ft vertical continuous arc.. the 6ft arc was horizontal quick drag... also did biggest plasma speaker on yt with a ferrite xray transformer... been doing some interesting experiments I think you may like
Take care and happy 2021
Steve
Your builds are epic
Hey,can you show us how to make ISSTC and VTTC?
Several of them are already on my website:
danyk.cz/index_en.html
I've just noticed that you were originally using the AOK transistors in parts 5 - 9 but for the mains test you switched them to the DGTD transistors, and you never mentioned why?
Very nice sparcs - love it! Is there a way to roughly measure the high voltage? From the length of the sparcs i would guess it must be in the 250 - 350 kV region?
Didnt you have a large Variac somewhere? If you used that and ran it on smooth DC, measuring stuff would be much easier.
Also, I think you should talk about the topload, maybe show some calculations on how the shape and size of it affects its (self-)capacitance.
I have a 10A 250V variac. But if I ran it at full voltage smooth DC, it would overheat. Smooth DC is about 4x the power of 1 halfcycle. There are some online calculators for the capacitance of the topload (toroid, sphere, disk, cylinder), but they don't have an option for my shape :D.
@@DiodeGoneWild Yeah, I meant use the Variac to get about the same average Voltage as with the halfwave rectifier. In case you want to do audio modulation you need smooth DC anyway. It would still give shorter arcs because the peaks are lower, right?
I just think this tesla coil series is the best on youtube because you went into so much detail and explained everything very clearly. The only things you havent talked much about are cooling, and the top load.
I dont know if you know enough about it yourself though. I was just never happy with the typical explanation of "it's a capacitor to ground". From what I understand, that's very inaccurate. It doesnt have anything to do with "the ground", and instead is due to *_self-capacitance_* instead of *_mutual Capacitance_* which is what we normally talk about. This is also the reason why arcs can shoot out anywhere into the air, as opposed to down to the ground.
Check the gate driver. Maybe it’s glitching
Are you planning to convert it to a bridge or make it a Dual Resonant SSTC (or both)? I can't imagine how long those arcs would be!
I'm too lazy to build a full bridge. Maybe I could do it with IRS2453D or IRS24531D, but if I needed more power, it would be way way easier to just put parallel pairs of IGBTs into the existing halfbridge.
@@DiodeGoneWild But wouldn't a full H bridge double the output voltage and so the arc length would also double? With a half bridge you get 320V p-p, but with a full bridge you get 320V peak, right?
@@drobotk I believe that is correct, but he could also just add a voltage doubler to the input for the same effect with less work (but I believe he may then need higher voltage transistors and maybe also new capacitors).
Is ozone generated during these discharges?
Ozone and also nitrogen oxides...
Nice,good job
CAN i use that sircuit with dc instead of half wave ac?
yes of course, but transistors You use will get hot, so make a water cooling system or something.
@Acid Trip what if i use half sycle of square wave signal and its powered by max 30 volts will it then work?
@@uxmuu204 poorly
What did you study ?
For me one year left for university but i already made a sstc
Grammar school in Mělník, Economics (VŠE) in Prague and a short _English for Foreigners_ course in Sydney. All of his knowledge on the subject comes from 25+ years of experience.
@@soumyapatra9545 No, true. Search the deep web, you can begin at danyk.cz/ja_en.html (the English _About..._ page of his *awesome* website). To find more details about him, you need to use Google Translate (unless you speak Czech) and The Internet Archive.
Maybe he's Italian? Pizza! Mozzarella!
No, he is Czech
I wonder what would happen if one touches the sparks. If you are grounded I assume it might kill you? Of you are floating maybe nothing? But please don’t try this out just explain if you know 😀
It wont kill you in the usual way since it is low current at the secondary and high frequency. However it will slowly kill your cells in the body which can be very dangerous if you do it for too long.
Does the whole neighborhood have no TV when it runs?
What is the large white round adapter you use to plug it into your mains plug board?
It was some kind of a smart socket, but now it's just a socket with one wire out of it for measuring current with a clamp meter :)
It used to be this:
ruclips.net/video/LVzngxFMsGs/видео.html
But I removed all internals and left just a wire loop. This way I can measure the current drawn from mains using my clamp meter.
Please show the final schematic.. you're said to publish that soon. Please
Nice top load, lol. And a nice project video series. I'm just curious what practical use this Tesla coil would have. Or is it just a toy?
Tesla coils never have much practical use. They _are_ just toys, but they can also teach you a lot.
Well they can have a use in wireless energy transfer, the sparks were never part of Teslas ultimate goal. Mr Carlsons lab did a video called "Tesla Coil Wireless Energy and Resonance Demonstration" demonstrating the true purpose behind these coils with a transmitter and receiver coil. Sparks are just for fun mostly.
@@uK8cvPAq It is useless for wireless energy transfer, because the transmitter transmits in all directions. The energy losses will add up in orders of magnitude compared to the distance. That makes it totally impractical for any serious energy transport use case. Compared to an ordinary extension cord.
So it's just a toy. A lethal toy. Play the video again, pause it at the start and read ALL of the orange text.
put 4 igbt on each side and run it on fully rectified mains .. probably use the power factor control circuit from that dead computer psu .. it should have enough power.
Great work but the sparks ain't as long as the spark gap version, is this expected please ?
The SSTC is powered with much lower voltage, in this case 320 Vp-p. A SGTC on the other hand is powered with kilovolts. Lower input voltage = lower output voltage = shorter sparks
Ha Ha. Realy Wild Diode.
Doesn't sound like your PC is too happy about that.
Here's a suggestion...
Can you turn this into musical tesla coil ??
With a smooth DC and a different control circuitry, probably yes, but I'm too lazy to do it :).
Der Lichtbogen hat sicher 350.000 V. Da ist es schon gefährlich, sich im Bereich von 2 Metern um der Teslaspule aufzuhalten, denn dort hat die Luft eine sehr starke statische Aufladung. Wenn man sich jetzt in diesem Bereich befindet und berührt z.B. nur die Wasserleitung, dann kann ich mir ganz gut vorstellen, daß man dann einen elektrischen Schlag bekommt, denn die ganze Luft in diesem Raum ist elektrisch geladen.
Wenn die Luft mit + Plus elektrisch aufgeladen ist, dann ist es eine statische Elektrizität, und die ist nicht hochfrequent wie die aus der Teslaspule. Und wenn man in dieser Statischen Elektrizität nahe an einen -- Minus Pol kommt, dann springt ein kurzer Blitz eines Lichtbogens über. Je nach gespeicherter Strommenge kann das sehr gefährlich werden.
Richtig. Bei hochfrequenten Strom bekommt man Verbrennungen, wenn ein Lichtbogen mit 350.000 Volt überspringt. Und je nach Stromstärke bei mehr Ampere, brennt es einem die Finger weg. Die Finger sind dann gegrillt.
@hardstyle905 Mir hats auch schon öfter eine g'wischt. Als kleines Kind -- ca. 6 Jahre jung -- sogar an einem Fahrraddynamo, den ich in der Hand hielt, (Massestrom linker Hand und Versorgerstrom an der Schraube, und blanker Draht, rechter Hand) und ich damit einen Kurzschluss machte. Dabei gab es Induktions-Spannungsspitzen, die sehr unangenehm durch meinen Körper zuckten. Ich hab anschließend sehr geweint. Das war mein erstes Erlebnis mit höherer Spannung. --
Als ich so 9 Jahre alt war, machte ich experimentell eine Bekanntschaft mit dem Weidezaun-Strom. Erste mal hin gelangt, tat es nichts, da in der Zeit der Berührung kein Stromimpuls floss. Bei der zweiten Berührung gab es durch meinen Körper einen dumpfen Schlag. Das hat mir gereicht. Seit her mied ich, den Weidezaundraht zu berühren. --
Mein Papa ist sehr leichtsinnig mit dem Strom 230 V umgegangen, und hatte nicht bedacht, daß ein Kabel, wo vorne und hinten ein Schukostecker angebracht ist, sehr gefährlich sein kann. Und so kam es eines Tages, daß das Kabel an der Steckdose angeschlossen war, und ich das Kabel in die Hand nahm und versehentlich mit dem Finder zwischen die zwei Pole geriet. Nun, nachdem ich unter Strom stand und hüpfend den Stecker vom Finger weg riss, hatte ich anschließend einige Brandblasen am Finger. Das Kabel mit den zwei Steckern wurde dann entsorgt. --
Eines Tages fand ich mal so ein rundes, zylindrisches Teil, das zu einem Auto gehört, wo ich dachte, es sei ein Elektromotor. Diesen vermeintlichen "Elektromotor" ich dann -- an seiner Stirnseite -- an 12 V Wechselstrom anschloss. Den einen Pol ich dann mit dem Mittelfinger berührte, und mit dem Daumen den anderen Pol berührte, und mit dem Zeigefinger das rohrähnliche Mittelteil auf der Stirnseite berührte. Dann hat's mir so eine *"gebrrritzlt",* den Schlag ich bis heute nicht vergessen hab, den ich da bekam, der war wirklich entsetzlich. Da wären 230 Volt nichts dagegen gewesen, so weh hat das getan. So erfuhr ich, daß es eine alte Zündspule war, und da fließen bei Anschluss an 12 Volt Dauerwechselstrom doch so an die 1000 Volt dauerhafter Strom. Seither war ich dann sehr vorsichtig mit Strom. --
Nun, elektrisieren kann man sich überall. Zum Beispiel bei statischer Aufladung wenn man aus dem Auto aussteigt, im Winter die Luft sehr trocken ist, und das Auto berührt. --
Im Winter, wenn die Luft sehr trocken ist, kann man sich sogar an einer Katze elektrisieren wenn man sie zuvor auf dem Arm hatte, streichelte, und anschließend am Boden absetzte. Diese elektrischen Schläge fühlen sich wie Nadelstiche an. --
Ein Leintuch, bei warmer trockener Luft gebügelt, kann sich sehr stark aufladen. Gefährlich wird es, wenn man das frisch gebügelt warme Leintuch vom Bügelbrett nimmt und es zusammen legt, dann dann addiert sich bei der hohen Stromspannung die Milliampere. Als ich nach dem Zusammenlegen des Leintuchs, dieses an der Seite hielt und mit der anderen Hand mit dem Finger in die Mitte des Leintuchs kam, bekam ich doch eine ordentliche gewischt. Seither bügle ich bei trockener warmen Luft kein Leintuch mehr.
So kann ich mir hier auch sehr gut vorstellen, wenn mit der Teslaspule solche Spannungen bis zu 1.000.000 Volt erzeugt werden und die umgebene Luft durch diese
meterlangen Lichtbögen aufgeladen wird, so steht man in mitten eines Spannungsfeldes bis zu 1 Million Volt statischer Aufladung. Und wenn man dann irgendwo in dem Spannungsfeld ein erdgebundenes Metallteil berührt, dann kann das sogar äußerst gefährlich werden, denn das entspricht dann annähernd einer Gewitterladung.
@hardstyle905 meinen letzten Kommentar gelesen?😃 Ich mein das mit der Zündspule und so?
1:50 you measurements are wrong :/ Even a true RMS meter doesn't measure half cycle sine wave voltages and currents accurately,no matter if its an expensive multimeter or camp meter.
I see more problem in calculating real power input than in msms. Power factor of that capacitively loaded rectifier can't be 1. It's much less. W is not the same as VA
I wonder how it would sound if powered with DC.
I'm afraid it would sound BANG :). DC is about 4x the power of 1 halfcycle. The transistors would probably overheat in a second. The thermal resistance junction to heatsink would be too high.
@@DiodeGoneWildWould it actually be 4x the power? Full wave rectification of ac should produce double the power versus halfwave and I would expect DC 230v to produce about the same heat as fullwave 230VAC. Please correct me if I am mistaken.
It sounds like this:
ruclips.net/video/Bz6lGi032nU/видео.html
ruclips.net/video/UEVd7Un3wMM/видео.html
@@drobotk Interesting. Sometimes it sounds like thunderstorm and sometimes completely silent.
Would u like an xray tube? For free of course
Steve
Wow crazy love for you😂
btw, what is causing the sound of that sparks?
Plasma suddenly occupying the space that air was using I’ll guess?
He's running it from unsmoothed halfwave rectified mains
Great
can you load midi song in this sstc?
You'll have to run it from smoothed DC and build some kind of interrupter with MCU that can handle incoming MIDI.
@@martinrobomaze7184 but the chip can handle the signal from the midi interruptor?
The driver chip has shutdown capability, so yes. You have to connect a mosfet on the ct pin I suppose. Check the datasheet of that chip. It is IR2153.
@@martinrobomaze7184 i Will wait ansiosly a new vídeo of dankyv ;)
No WiFi and gsm in the whole city...
HAM radio operators within a few km are going crazy.
The Duga radar station lives again!
ElectroBoom may be interesting to good check that device.
can you tuch it with wire or metal?
High frequency current isn't that dangerous, you can touch it with a metal or even with fingers...
It can burn your finger?
@@DiodeGoneWild ok thx for reply
0:16 AAARRCCCC
Scary! ☠️😱🤯
Very Nice :-)
That’s so dangerous
Nice even more saalt
Please remind me of the video number, I nearly wet myself last time I watched it !
👍
počítač v pozadí asi neni moc nadšenej :D
Naaaaaaaaisssssssssss
Make it misical
Wow
EXTRA
lol
69 likes on the video now.
Do 5G