Your walk through of finding the resonant freq by getting the circuit to ring is very good. I figured it out through lots of trial and error back when I was building coils. Re. the stray L and C of the probes: wouldn't you be able to mitigate some of this by NOT making contact with the top load? I.e. clip the probe's ground to the probe (so make a little circle), and bring it close to the coil.
@unrealcrafter26717 ай бұрын
That's what I do
@maciejc.6172 жыл бұрын
Short story of the dead mosfet made my day :D I like this kind of the sense of humor =]
@curiousviewer59913 жыл бұрын
Nice! Looking forward to part 2!
@RAVI1711753 жыл бұрын
Amazing video with very good explanation. Keep it up dear.
@CuriousChan3 жыл бұрын
Hello, your SSTC looks cool even if it's not at its best performance... Perhaps a TL494 plus a MOSFET gate driver chip can help? I'm not sure, I'm just trying to come up with ideas😅
@HyperspacePirate3 жыл бұрын
That's pretty close to the approach I'm looking at for part 2, where I'll use an IR2153 to drive the gate from a cleaned-up feedback signal from the secondary coil - either with an antenna or a signal transformer To really drive the mosfets efficiently at this frequency range, I need close to 10A (for very brief periods) to charge the FET gate quickly enough
@CuriousChan3 жыл бұрын
@@HyperspacePirate We're hoping for your success on this endeavor🙂 By the way, you might find it interesting to check Steve Ward's SSTC circuits, although they are more complicated than at first glance😅
@tonysfun3 жыл бұрын
Great job on explaining it all as you go from part 1 to 2 and the last number 3 videos! Thank you for sharing! Would you suggest a very simple small TC that uses IRFP460, that I can make in few days? We have a show for people and I like to have a small TC demonstrator that is fairly safe. The once I've tried from youtube channels didn't work at all. I have a coil of 800 turns on 2.5" plastic tube, using 0.27 mm (30 AWG) magnet wire. I also have an aluminium toroid that is 153mm across and 38mm thick. I'm not near as advanced in electronics as you are, but if I have a good circuit to follow, I can put it together. I have a real large TC that I've made, but SSTC is beyond my ability to troubleshoot. Thanks again.
@HyperspacePirate3 жыл бұрын
If you use the schematic from part 2 of my SSTC series that should work pretty well. Sounds like the coil you have will probably work, it's just a matter of getting the frequency dialed in
@pranavramesh48883 жыл бұрын
Great video
@teslab1517 Жыл бұрын
Hallo, Minute 5:14 the circuit, the 555 timer run with max. 18 volt. Is your circuit right ???
@owenpenning159710 күн бұрын
Yes, the 18 volts is the maximum. He is powering it at 12 volts
@Edmorbus3 жыл бұрын
Great video Thanks for sharing
@AdilAdil-qk9eeАй бұрын
Hello, bro, please reply which material GDT core are commonly used in sstc Tesla coil. Ferrari coar or other material
@AdilAdil-qk9eeАй бұрын
What change occurs in the resonance frequency as the secondary coil wire SWG increases? Please reply... Sir What is the relation of secondary coil resonance frequency in secondary coil using wire SWG Frequency increase or decrease Waiting for reply
@xntumrfo9ivrnwf2 жыл бұрын
Haha man you're crazy running it off your bench PS :p I've killed more than one bench PS from the noise thrown back by the driving circuitry.
@aliazadasl81292 жыл бұрын
Very good
@f.a32022 жыл бұрын
Hello there! I've made a small TC and it's resonant frequency it's about 1.7 MHz. Do you have any idea on what oscillator i can use to achieve such high frequency to drive the mosfets?
@HyperspacePirate2 жыл бұрын
in theory a zvs driver can do that but you'll need to select the right FETs and diodes to handle the speed
@kbee225 Жыл бұрын
But the mutual inductance between the primary and the secondary will also affect your resonance frequency.
@16BITMEME3 жыл бұрын
I don't have a oscilloscope How can I see the Webforms ..... Any other way ???
@HyperspacePirate3 жыл бұрын
Not that I'm aware of, tbh
@16BITMEME2 жыл бұрын
@@HyperspacePirate 😓
@JW-nq6do3 жыл бұрын
how can you control the output frequency say for example you wanted to get to a particular frequency aside from 50khz or 60khz without affecting the output voltages?
@HyperspacePirate3 жыл бұрын
I use a 555 timer for the second driver circuit with a frequency that's controlled by a potentiometer
@JW-nq6do3 жыл бұрын
@@HyperspacePirate worked for a while, blew transistors, couldn't achieve desired VHF of at least 1ghz.
@HyperspacePirate3 жыл бұрын
@@JW-nq6do Check out my second video on SSTC's, it explains a lot about how to avoid blowing up your transistors. Idk why you're trying to run 1 ghz though. A typical tesla coil is like 100 khz - 500 khz or around that neighborhood
@JW-nq6do3 жыл бұрын
@@HyperspacePirate i need the coil output to be at least that frequency to move on to the next stage of my project.
@kayakMike1000 Жыл бұрын
Its air, humidity perhaps?
@goldsphere2 жыл бұрын
You could have just used a waveform generator to the bottom of the coil through a 10k resistor and oscilloscope on the secondary side of resistor. Adjust until amplitude shows.
@goldsphere2 жыл бұрын
Forgot to mention that I really love your work. Your breakdown of the engineering in all your videos is really informative.
@diptimanbora251211 ай бұрын
I’m not getting this. How would connecting the scope on the other side of the resistor work?
@goldsphere11 ай бұрын
You adjust the frequency until you get maximum voltage rise on the scope. And that is your resonant.