120,000-Volt Multiplier
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- Опубликовано: 23 июл 2024
- This video shows how to build a cockroft-walton type voltage multiplier using a flyback transformer as a first stage driven by a ZVS driver with a 12V input. This circuit outputs 120,000 volts DC and arcs from ~4" away. Within about 2 feet of the device, you can feel the ion wind, and your hair being pulled toward it by electrostatic induction.
I didn't use any current limiting resistors, so the discharges are very dramatic but also extremely hard on the capacitors in the multiplier. After about 4-5 seconds of continuous discharge, there's little to no output, and the device needs a minute or two to recover before it can be used again. My guess being that the caps are swelling under such a high load.
The flyback and ZVS driver are both homemade. The circuit for the ZVS driver is explained in more detail in my video on induction heating :
• Mini Induction Heater
Parts List:
-1nF / 20kV Capacitors:
www.amazon.com/gp/product/B07...
-20 kV / 100 mA Diodes:
www.amazon.com/gp/product/B07...
-Ferrite U-cores for flybacks:
www.amazon.com/gp/product/B01...
-32 AWG magnet wire for secondary windings
-IRLZ44 MOSFETs with heatsinks for ZVS driver
-1N4148 Diodes for gate pull-downs
Music:
Serge Pavkin - Fractal
Serge Pavkin - Network
Serge Pavkin - Unknown
Dude this is some of the best footage of a voltage multiplier I’ve ever seen! Amazing work!
I made a flyback transformer myself so I know how hard it is to get it just right and then you have to prevent arcing to itself, I potted my transformer in candle wax, the layers between the coils that I wound on top of each other instead of what you did having the coils next to each other I used paper for that so it helps getting the candle wax in between the coils since it will wick the candle wax up which worked out very well for me, I had to use hot candle wax to get it in between the layers and then let it cool down to find a hole exactly where the coil was located.
I filled it up with more candle wax and I also put in the capacitor bank and the inductor in the same plastic container filled with the candle wax to have all of the high voltage parts nicely isolated in a plastic can or box.
Since I've made that flyback coil myself I haven't blown up any more mosfets, and I can leave it on for a very long time without anything heating up so I'm pretty proud of my hand made construction.
Hats off to your great work man. That was indeed a very detailed & very well done video. Thanks for sharing with us all. Just keep it up going with the great works.
This is one of the best video on YT. Everything was well explained and demonstrated without hanky pankys. Thank you for sharing your experiment. It gave tremendous amoutn of knowledge. I liked it.
This is very good presentation on how to make a high voltage transformer and voltage multiplier👍 I'm going to add this project to my to-do list... Thanks for this video, buddy😄
Very good information. Everyone be careful to not hurt yourself
Great work man. I subscribed instantly when I saw corona discharge even without making background more darker, amazing work.
For such a relatively small channel, you have some amazing content! I just subscribed after watching all your videos, and I'm sure you're going to grow quickly. Keep up the great work!
thx man
@@HyperspacePirate What Is Islam?
Islam is not just another religion.
It is the same message preached by Moses, Jesus and Abraham.
Islam literally means ‘submission to God’ and it teaches us to have a direct relationship with God.
It reminds us that since God created us, no one should be worshipped except God alone.
It also teaches that God is nothing like a human being or like anything that we can imagine.
The concept of God is summarized in the Quran as:
{ “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4)
Becoming a Muslim is not turning your back to Jesus.
Rather it’s going back to the original teachings of Jesus and obeying him
Hi mate, love your videos... I'm trying to find a 220v to 30kv + step up transformer. Do you know where to source? It's just for a project
@@ahmdabdallah5811 wtf
You should build a duplicate multiplier but opposite polarity. Putting them side by side, you should get double the output voltage between them.
Why is this better than building one multiplier double the length?
Awesome stuff you're putting out.
Nice and clean design.
That was pretty interesting. Great video
Hands down the best channel on electrical engineering! It would be great if we could get access to the .stl 3d print files. Thanks for always bringing amazing content!
Fusion 360 can be had free for personal use and it's great...intuitive and has satisfied all of my part geometry needs. Wonderful tutorials here on UT, you'll be making simple .stl extrusions in a day and can go from there to sweeps and lofted shapes. Fun stuff!
Just earned my sub for sure. Keep it up dude. Soumds like my x ray transformers
I think yer channel is great bruv, content and a voice you dont mind, cant beat that for me so more please. 😎💕🖖
I love your channel!
best how to yet!
That vertical multiplier is genius.
To put it simply, a most excellent video. Thank you kind Sir. /sub'd
Creative video, thanks :)
Discharging through vacuum will generate some Xrays. Please be aware of that.
excellent
Nice! You might even be able to add a wire brush drill (or something similar) at the end for increasing the amount of points to generate more ionic wind. Some of those brushes might even be able to be screwed on (with an adapter) the tip. If you put a PVC pipe over that (with air holes below the brush) the ionic wind flow going straight up should be even more impressive, I think?
Yeah i think you're right about that. However, my real goal with the super high voltage is to experiment with powerful electrostatic effects, so i think I'll eventually mount a big metal sphere on the top to spread the charge over a big area, similar to a van de graaf generator
The arc hitting the lightbulb would make for an interesting album cover I think
espectacular tu video esta genial . te escribo desde argentina . mi pregunta es respecto de la peligrosidad pues vi que llega a consumir 30 ampere . mi idea es hacer un sistema similar al tuyo para fabricar un sistema de pintura electrostática que por lo que investigue lo que hiciste lo correcto solo que llegan a 100kv. gracias y felicitaciones cualquier o sugerencia me sirve .
I'd love to make one of these so as to create my own DIY electric fence
yes, i definitely need a fridge motor, that's something easy to find that i'm overlooking for too long... i had a pair in my life but now that i have a use for em i don't have any LOL
8:36 I'm curious how you hooked up the light bulb? If the arc had a proper path to travel from + to - from the center conductor pin on the base to the outer conductor on the threads? My "X-ray vision" doesn't work so well on videos to see how the lamp base was wired, or if you just wound it to the post with foil and caused a short? Also, I've never seen anyone try that with an incandescent lamp either, only seen people use fluorescent tubes, so maybe that had something to do with it?
Fun fact: the reason you were getting 38V from your ZVS is because the equation for output voltage of ZVS is V_out = V_in * PI (12V * 3.14159 = 37.7V)
Hi! That is exceptional. May I ask ? Is the black lead that you hold in your hand, and arc's across to the white 'tower', is the black lead an earth / ground lead?
Is it possible to raise the value of the capacitor to increase the electrocution?
if you sold your multiplier, I would buy it.
I think you should build a few of them and put them on groupgets.
Thanks for describing the design.
what are the ZVS components? I mean the inductors and the cap, because I'm building it at home
What would happen if you had more powerful capacitors? Would that give more than 4 to 5 seconds of use before requiring a rest period? Thanks
Is it work with 15kv capacitor and 16kv diode ?
In the lightbulb test, did it blow a hole through the glass on the first arc? It looks like the corona is coming out through one spot on the side of the bulb only. If so, yikes!
nice
Great and informative vid! Curious if a 9kv. neon sign transformer would work. They can be had for about 40.00 online with a 20-30 ma. output if my memory is right. Would the core have to be removed or replaced for hf?? Nice and elegant design, just discovered your channel today.
Would have to wind the primary myself...sorry forgot to add this.
Can you please share the 3d desughns as I want to remake it better with 3d printed parts as I have the same cores aswell, that would be great thanks
You could also put a candle, a flame to show the blow it makes
seems like a nice ozone generator seriously
do you have any formulas？
Hi. Where did you get the rack to mount the diodes and capacitors?.
Looks to be 3D printed?
I can smell the ozone from here
I know this video is a year old now, I’m just starting to get into electronics as a hobby now that I’m retired. You mentioned lower that a coil would produce a lower frequency, what frequency does this run at and how do you determine frequency?
if i recall this runs at about 25 kHz. The frequency is based on the inductance of the primary coil on the transformer and size of the capacitor. Smaller capacitor or smaller number of turns on the coil = high frequency and vice versa
Could the windings be coated with epoxy?
Cool.
How many amps out?
absolutely sick. I should look into how these zvs circuits work. one question though- couldn't you just make that transformer with a toroidal core? what's so special about these cores?
Yes, but 1.) It would have to be a very large toroid to have the same saturation current as the core used in the video, and 2.) it would be more difficult to wind because you can't take it apart in two pieces like a flyback core
@@HyperspacePirate thank you
Have you done anything with spark gap speakers?
I haven't, but that sounds like a good idea for a future video
K materiales utiliza y que lukido es
I am so lazy to wind my own transformer that I have discovered a way to remove the diodes from flyback transformers. 😆
How do you avoid being dead from such circuitry? Current limited, or just making damned sure to never let it arc through your flesh?
nice experiment，do you know how to get the times that you will boost the voltage？
Assuming no leakage, the multiplication ratio is the number of capacitor-diode stages in the ladder. That's for an open circuit condition.
@@HyperspacePirate the capacity of the capacitors you have to worry about？
@@vicentecarrasco3653 Larger capacitors will present a lower impedance to the alternating current, but I think the power supply feeding the voltage multiplier will become a limiting factor long before the capacitor impedance does. Having said that, I use 1 nF / 20kV caps, but values as small as 50-100 pF would probably work the same on this circuit
@@HyperspacePirate aaaaah，largest capacitors in the output the voltage will reduce.
hello my friend can you share with us the 3d printed transformer specs plz
Isn't a flyback transformer supposed to have an air gap? I think the thin glue layer doesn't count.
How dangerous are the arcs? Microwave oven transformer dangerous?
Make a great rechargable table lighter.
An idea is that if you can find an old flyback transformer from an old tube or earlier solid state TV, it will not have a built in rectifier or doubler, and the output will be AC.
How did you measure the output voltage? Or did you? And another thing coming to my mind: PVC is not supposed to be a good insulator (and I have some personal experience!). I guess you indeed depend on the oil even for that reason.
I can measure the input voltage with a resistor divider, and then multiply that by the number of stages in the multiplier circuit. Of course, there are conduction losses, diode losses, etc., but when you're making big arcs, the difference between 120,000 volts and 117,500 volts, for example, is imperceptible
@@HyperspacePirate Good. But the diode drop is negligible, even for high voltage diodes. The capacitors in my experience are more likely to cause some meaningful drop, about 2 kilo-ohms impedance per capacitor at 80 kHz. If I counted right, you have 12 capacitors (as well as 12 diodes) in seres. That means some 23 kilo-ohms total impedance. The voltage drop of course depends on current as well as the impedance, so I don't try to estimate that. Nor do I know the AWG36 winding length, but you have there about 1.3 ohms per meter, just for pure resistance.
On 50 or 60 Hz AC between 0.5 meter spheres and 1 cm gap, you are supposed to get sparking to start at 30 kV RMS. In the old days that was actually used as a measuring device. Anyway, the spark initiation voltage depends on the electrode size and between a point and plane or two points, you get considerably lower initiation voltages. You notice, how close you bring the ground side wire end before the arc starts. After the start, maintaining even very long arcs is easy due to existing ionization. All this is why I am curious about your actual voltage. Once, when Heathkit was still around, I built their 40 kV probe and quite recently I built two DMM voltage extenders, 10 : 1 dividers with 1% high voltage (15 kV rated) resistors. I also contemplated buying some vintage electrostatic HV meters offered at eBay, but ended up not going that way. Well, good luck in the future with your experiments!
Now connect this to a cold cathode lamp and make some x-rays.
If you used an ignition coil to power this would It work?
Yeah, but the impedance of the multiplier would be higher due to the lower operating frequency of the ignition coil compared to the flyback transformer in this video.
@@HyperspacePirateWhat type of capacitors and diodes did you use?
@@60hz120vac 1 nF / 20kV caps and 100 mA / 20 kV diodes. Links are in the description.
If I used a a 29.5kv flyback would it work stock?
@@60hz120vac if it was built after the 60's, it probably has an internal voltage multiplier which also rectifies the AC to DC. If you want to use it with your own multiplier you'll have to remove the potting compound and remove that element first
if this runs through a coil is it safe to zap the human body with?
No. Because it's DC it'll go straight through your body. The reason you see people touching tesla coils without getting hurt is because they're usually really high frequency AC (hundreds of khz) so the current only travels on the very outer layer of your skin
Hypothetically how difficult would it be to produce 1 million volts with a multiplier circuit using 20nf 50kv capacitors??
No major difference from the one i built in the video. The big thing would just be making sure you have the right ratings on your HV components and space them far enough apart to avoid arcing. If your caps are 50 kV, for example, you dont want more than 25 KVAC of input because the caps in the ladder end up being 2*VCC
1MV is quite difficult. Things start to get tricky when you get into hundreds of kilovolts. Starting with a low voltage and using many multiplier stages makes no sense. You would be better off starting with something like a 150kV transformer. Those things can get big and expensive quickly. 1MV is probably more doable with Tesla transformers or static generators.
What is happening in 6:04? o_O
Ion compressor jet drive - unlimited speed without turbine.
Looks like a marx generator
this is literally a death ray machine
This is shocking.
Smal light bulbs typically have vacuum, not any argon or other gas. So you might've also generated xrays with that
+++
Daygrmm send
That suporsed to be 1m volts
WARNING LOUD I REPEAT DIS SHIT VERY LOUD
Congratulations, excellent design, a question, what oil is used?
I think mineral oil, it is a great insulator.
There are many types of oils. As a hobbyist just use some mineral oil you got on hand. It's usually not worth it to buy special insulation oil like Shell Diala. You can use silicone fluids and even ricinus oil (not recommended for hobbyist). There are also insulation oils derived from seed oils. High Performance oils can be made from natural gas (gas to liquid). Beware of old transformer oil. It can be highly toxic.