The transition to the sponsorship was so smooth, I didn't realize that I ordered some gate drive transformers from Würth Elektronik and now, they just arrived at my front door.
@HSelimSerdar
3 жыл бұрын
LMAO
@greatscottlab
3 жыл бұрын
Smooth is my middle name ;-) Oh boy. Secreat revealed.....
@liviuconstantin9960
3 жыл бұрын
@@greatscottlab How about you reveal another secret: Did you take the "Great Scott" name from the "Back to the Future" movie?"
@JjMn1000
3 жыл бұрын
Lol
@imbw267
3 жыл бұрын
The game was rigged from the start
@anuragdeshkar
3 жыл бұрын
Man your video production quality is best and also technical knowlegde!!
@greatscottlab
3 жыл бұрын
Thank you :-)
@Bhavesh_g20
3 жыл бұрын
It feels so good whenever I see that notification from great scott Really appreciate your work
@greatscottlab
3 жыл бұрын
Happy to hear that!
@Bhavesh_g20
3 жыл бұрын
@@greatscottlab I've been following you since years I'm very glad you replied It means a lot to me 😊
@supreethathreyas4577
3 жыл бұрын
1:24 greatScott : decent arcs electroboom : !@#$%
@naivedyasharma5821
3 жыл бұрын
Lol
@felixb.1756
3 жыл бұрын
Look at my tesla coil on my channel. These are decent arcs!
@jhoughjr1
3 жыл бұрын
i hate to say but my tiny coil is almost as big as those
@rolandasa.1112
3 жыл бұрын
Thanks for the video! Gate drive tranformers were always a grey area to me, but now with the knowledge you provided I can make projects I never imagined I could build.
@greatscottlab
3 жыл бұрын
Wonderful :-) I love to hear that.
@Av-ks8uc
3 жыл бұрын
Your videos are awesome! You inspired me, with your LED cubes videos 6 years ago to start learning about electronics, and now, I am 3 years into my EE degree and I love every bit of it! Keep up the great work man, and stay safe!
@greatscottlab
3 жыл бұрын
Great story mate😁 Keep going👍
@micaiaskauss
3 жыл бұрын
An audio tip for you: To reduce the breathing sound between your sentences, use a noise gate (or expander) before your compressor. Your videos are awesome, keep it up.
@gorillaau
2 жыл бұрын
What if he stops breathing? Is that a satisfactory solution for a home studio?
@micaiaskauss
2 жыл бұрын
@@gorillaau No, I actually like this guy, but you can stop if you want
@thebuttracoon8245
3 жыл бұрын
One more thing to put in my noggin. Thanks Scott! Wishes from Lithuania
@Buzzhumma
3 жыл бұрын
I always know i am going to progress a lot in electronics when the Great Scott notifications come up . You are like purity of knowledge and a great teacher . Thankyou !👍🏻🙏
@GnuReligion
3 жыл бұрын
A Dixon Multiplier can also be employed to drive/store a charge of Source + 12V, then drained to the gate through an optocoupler.
@darekmario446
3 жыл бұрын
That was a quite helpful video that simplifies this topic. I've always been "scared" of such GDT Circuits. You motivate me to try and practice such solutions! Bleib gesund!
@greatscottlab
3 жыл бұрын
Awesome👍
@andrewkay9226
Жыл бұрын
As always a totally engrossing & educational video. The schematic drawings & accompanying explanations are the best on KZitem
@JADES-GS-z13-0
3 жыл бұрын
Please make a HFSSTC.
@titasroy9820
3 жыл бұрын
I want it too
@prasunkarmakar3303
3 жыл бұрын
please please bro make video on this topic❤️
@avikroy9698
3 жыл бұрын
You should collab with electroboom. One check circuit 5 times before running it and other one blow circuit breaker 5 times.
@greatscottlab
3 жыл бұрын
I can put it on my to do list :-)
@StephanYazvinski
3 жыл бұрын
This is pretty cool keep it up.
@750kv8
3 жыл бұрын
What wasn't obvious why there wasn't as much of a saturation problem with the commercial GDT is that, it must use more turns with a thinner wire, and most importantly, theres a gap spacer in its core, which the toroid transformer clearly lacks. A submillimeter gap in the core prevents saturation, and in switch mode transformers (inverter PSU's, flybacks, electronic CFL / fluoro ballasts etc.) it helps the magnetic field to collapse as quickly as it can, releasing energy stored in the core. Very well made video, Thank You! Great channel! 👍
@d614gakadoug9
11 ай бұрын
The last thing you want in a gate drive transformer is energy storage. A ferrite with a permeability of 5000 is usually quite suitable for a gate drive transformer and requires only a few turns for typical modern switcher frequencies. You don't gap the core for a half-bridge converter. Why would you gap the core for the gate drive transformer for the half bridge? Flyback converters are another matter altogether. There the whole intent is to store energy because the inductive component is not used as a transformer at all, except with regard to multiple secondaries.
@750kv8
11 ай бұрын
@@d614gakadoug9 - I admit i was mixing up things a bit.
@adarsharao
3 жыл бұрын
Thanks for the tutorial... it was really useful.. although I studied these things in college, my teacher hardly had any hands-on experience, he made it so boring that I never apricated power electronics... now it looks a lot interesting.
@Debraj1978
3 жыл бұрын
For frequency > 100KHz and high side driver, transformer based gate driver is a better option. If you only have high side drive (with no complementary low side), then transformer based gate driver is the best option.
@attackaffection5444
3 жыл бұрын
Congratulations on 1.5mil subscribers .Wished electronics was a bit more mainstream so you could have a lot more :D
@greatscottlab
3 жыл бұрын
Well, I am still happy that so many people watch my videos and are interested in the subject.
@attackaffection5444
3 жыл бұрын
@@greatscottlab 👍
@DrunkenSwimmer
3 жыл бұрын
As a self taught electronics engineer (embedded systems) this answered questions that I've wondered about for literal years. Thank you very much.
@rohanpawar1603
3 жыл бұрын
The way u draw circuits is amazing
@greatscottlab
3 жыл бұрын
Thanks :-)
@charlesdickens6706
3 жыл бұрын
.....okay, and in 2¼ minutes of video I've heard you pronounce the word 'series' as 'serious' . I was also making this mistake when I was eight years of age. Actually your English is very good . Thanks for your work .
@Dudong18
3 жыл бұрын
I'm also your electrifying fan, keep it up
@greatscottlab
3 жыл бұрын
Thanks mate :-)
@Dudong18
3 жыл бұрын
@@greatscottlab No probs, it's also my hubby
@electrohardik8497
3 жыл бұрын
Wow , really great I think when I will grow up. I shouldn't go to any University/college for studying electronics as , I have learnt almost everything from you. , I think I am your youngest viewer though , support from India
@omsingharjit
3 жыл бұрын
This types of videos are so helpful
@reeffisher9393
2 жыл бұрын
Nice video, but note...Galvanic isolation does not = safe. Many gate drive transformers only provide functional isolation which is not suitable when "safety isolation" from AC mains is required. In most cases any user accessible downstream circuits which have a working voltage upstream greater than 60VDC or 42.5Vac should be considered "safety isolation" required. For reference these are the limits for UL Class 2 which is good to follow if no other information is available. In that case you would search for a commercial gate drive transformer which has at least basic isolation, but ideally reinforced (double) isolation. There is also the matter of creepage and clearance, but that's for a different video. :-)
@attackaffection5444
3 жыл бұрын
Woah didn't expect that coming!
@Stoneman06660
3 жыл бұрын
Looking forward to going whole hog on my own SSTC as I move up from Slayer Exciter variants to more complex systems. Your tutorials and how-to videos are golden for this. Many thanks from Australia! :D
@sFeral
3 жыл бұрын
Check out the Tefatronix mini SSTC circuit
@letstec9117
3 жыл бұрын
bro biggest fan
@greatscottlab
3 жыл бұрын
Thanks mate :-)
@jim40135
3 жыл бұрын
10:32 woah woah woah, wait a minute... you've got a *purple* marker pen as well? :o
@patrickjoseph9476
3 жыл бұрын
Scott, bootstrapping can be also done for a single MOSFET too. Refer, 0033mer's video on MOSFET bootstrapping.
@poweriserboy
3 жыл бұрын
Nice video! I am only a bit concerned how you use the term "saturation" in some places... The secondar voltage drops due to lack of change (di/dt) in the current through the transformer winding... I don't see any problems with saturation in some cases, if I am not completely wront :D but yeah it's sunday, so might be the case. Still well done and very nice to watch. Some positive words so the algorithm won't think I am anything other than happy with the content :)
@rougenaxela
3 жыл бұрын
For those who like Digikey or Mouser for purchasing parts online, note that the "Pulse Transformer" section is where you'll find these sorts of gate drive transformers in the catalogs, including some from the sponsor Würth Elektronik. :-)
@YDKMPablo
3 жыл бұрын
We've got the same variac! Amazing video. About soldering, you'll get cleaner solders if you heat the pad among the leg at the same time in PCB's.
@pete3897
3 жыл бұрын
What a seriously good serious this is :) EDIT 8:19 - now that sounded different! Great job :) Your explanations are fantastic BTW.
@on8rth
3 жыл бұрын
Maybe one important addition that maybe requires an Part 3. Gate drive transformers work only when you have a 50% Duty cycle. This works for the tesla coil because of the quasi resonant topology that it uses, where the frequency determinants more or less the power transferred to the secondary side.
@f.a3202
2 жыл бұрын
what if i use 45% duty cycle will it work? i have used some tl 494 ic' s and they have a dead time and don't output 50% but about 45%
@warrenking1815
3 жыл бұрын
Very nice to see a left handed electronic engineer( like me ) who can draw such great schematics!
@greatscottlab
3 жыл бұрын
Thanks✌
@vivekchauhan7468
3 жыл бұрын
As always nice and informative video. One video request... Make it if possible (according to your convenience) How to measure current using shunt with OP-AMP with microcontroller.
@charletonzimmerman4205
3 жыл бұрын
D.C. Welders use same principal, a small voltage winding controls variable, welding current, called a "Saturable reactor", also High voltage, Arc Furnace, for steel Foundry's.
@zvotaisvfi8678
5 ай бұрын
Wow I Love this Idea ! Thanks for sharing I never thought about this before ! Thanks !
@ELECTROGYAN
3 жыл бұрын
Thank you for this video But hey Scott can you explain what is boost trapping.... in briefly..
@greatscottlab
3 жыл бұрын
Watch Part 1.
@saxon215
3 жыл бұрын
As always a well researched and informative video. I wish I could hand draw circuits as neatly as you
@firstlastname99
3 жыл бұрын
I'm getting a great education from your work on this channel.
@neagoecatalin879
3 жыл бұрын
Thank you! Great presentation, as always. I've played in the past with the gate transformers, when I was building the solar charge controllers and the multiple, galvanically isolated outputs bench power supplies. ....and I would say that the bootstrap drivers are, to me more reliable and more versatile. Also maybe because, when comes to calculate those transformers I quickly become lazy/confused/stuffed (?) :)) But I still try to understand what/where could be the advantages of using a gate transformer. Maybe on higher frequencies? Again, thanks! All the best!
@bashaaksema94
3 жыл бұрын
Very cool video! One thing though, for a DIY project it is not easy to find a gate drive transformer. Mostly because they are not that widely availeble and also because you more often then not require some specifics that a supplier cant offer you
@hassankhalid2964
2 жыл бұрын
If I havent started my PhD I wouldn't have understood the gate driver importance from your videos 😅
@craigs5212
3 жыл бұрын
Use caution when running a Tesla coil or Van de Graaff generator in your lab. They have enough voltage and energy to blow out all sorts of expensive test equipment even without being connect to them. Had a guy bring a VdG into our lab one day and managed to wipe out two HP scopes and a CRT terminal. The VdG was not even on the same bench. When he fired it up corona sparks were jumping all over the place from one metal bench to the next killing the equipment. Those things make a wicked E field.
@MCsCreations
3 жыл бұрын
Pretty interesting, dude! Thanks a lot for the lesson! 😃 Those transformers with a magnetic ring and wire I would call analog option... That would show easily all the difficulties! 😂 Anyway, stay safe and creative there! 🖖😊
@freewarekr
3 жыл бұрын
I saw it well. The content structure, courses, and graphics are all nice. Learn a lot.
@masondaub9201
3 жыл бұрын
Funny timing, I just made my first Tesla coil a couple weeks ago with a gate transformer.
@danicarbonell4314
3 жыл бұрын
I would say you are better at teaching than soldering ...
@jakobhalskov
3 жыл бұрын
Very useful for my DIY induction heater project :) Thanks for sharing!
@firefox1136
3 жыл бұрын
Very nice, I hope, that at some point we will see it at full power. (230v)
@TheRevWillNotBeTelevised
3 жыл бұрын
Did you record this after running up a few flights of stairs? The breaths are real.
@greatscottlab
3 жыл бұрын
No
@TheRevWillNotBeTelevised
3 жыл бұрын
@@greatscottlab Probably due to the mic being too close to your mouth then. I don't mean to be overly critical but once you notice such a thing it's all you notice. Like telling someone not to think of a pink elephant.
@factstrophe
3 жыл бұрын
Yes its annoying...🙁🙁
@robson6285
3 жыл бұрын
@@TheRevWillNotBeTelevised no i didn't notice. For sure nót annoying
@TheRevWillNotBeTelevised
3 жыл бұрын
@@robson6285 I'm not sure how it would be annoying if you didn't notice? lol My point was that once you do, it is.
@nachoeschetini1718
3 жыл бұрын
With a zvs a FB a spark gap in paralel and a condenser in serie whit a primary coil u got a bigger effect in the secondary coil
@amansaxena5898
3 жыл бұрын
Love the MOSFET series ♥️
@dipubiswas8520
3 жыл бұрын
Hi great scott, your videos are always very informative & practical
@danstark462
2 жыл бұрын
Thank you sir. You thought this through very well.
@kennethlazo940
3 жыл бұрын
Very useful video as always thks
@ElIsraelJijijiji
2 жыл бұрын
1:19 that's why you don't get big arcs, that's a pretty simple way to not get advantage of your mains voltage
@LalanDesai
3 жыл бұрын
ElectroBoom should watch this video!
@greatscottlab
3 жыл бұрын
Maybe he already did?! :-)
@naivedyasharma5821
3 жыл бұрын
@@greatscottlab yes
@Aim54Delta
3 жыл бұрын
Thank you. I am looking to design a cuk converter rather soon, and the subject of integrated magnetics is kind of voodoo. There's electrical engineering, then there is magnetic engineering, and then there is the continual play against math and market available components or subcomponents to work with.
@korishan
3 жыл бұрын
I have watched many of your videos, which btw, I enjoy how you break down the electronics into something easy to understand (even though you aren't a native english speaker, I can understand you very well). A few questions have come to mind: 1) How long does it take you to draw all those schematics? You are very meticulous in the drawing. Is the one for the video much neater than the original? 2) With your drawings, how come you go over the lines multiple times when the first mark is quite visible? You use very good lighting, nice white paper with a very dark marker. 3) I've forgotten what my other question was. Will have to post it later when I remember it 😜
@vishnup.s.8987
3 жыл бұрын
This is moment the moment I have been waiting for
@squadus1986
3 жыл бұрын
Bro .. malayali alle
@BogdanSerban
3 жыл бұрын
From my experience, green toroids make the best GDT cores. And they're really cheap if you get them from China.
@pi-tech1817
3 жыл бұрын
Brother you deserve more views and subs,salute for u ,u doing a great job by sharing knowledge of electronics. I am also electronics and electrical engineer, still studying though,but I am very fasinated in the field of electronics. Learned Soo much basic things from u and electrboom ,plasma channel.👏👏👏great job keep going
@easyelectronics4364
3 жыл бұрын
Beautifully explained! ❤️
@greatscottlab
3 жыл бұрын
Thank you! 🙂
@Gamezone-sd3er
3 жыл бұрын
Thanks now I know why cfl driver circuit have this type of feedback ❤️
@michalkana9764
3 жыл бұрын
Oh, new auto transformer. Intresting. What you did with the old one?(red, similar or even same as Electroboom's) AND even a function generator.
@greatscottlab
3 жыл бұрын
Old one is still right here :-)
@michalkana9764
3 жыл бұрын
@@greatscottlab Thanks god. I think you throw it away. How expensive was that new.
@michalkana9764
3 жыл бұрын
BTW: Diy or buy voltage tester for outlets.
@theogaillard5355
3 жыл бұрын
@@michalkana9764 Buy, it will be cheaper, and safer. You can get one for less than 8$ here in France, don’t know about your place, but still pretty cheap :)
@michalkana9764
3 жыл бұрын
@@theogaillard5355 Im from Czech Republic, and here i can buy one for 30 dollars.
@jimhibbard1546
3 жыл бұрын
Twisting wire reduces cross talking but for coupling windings it might make the signal unstable and limited by frequency.
@ancientflean7594
3 жыл бұрын
The arc is smaller compare to the Electroboom, but is such a good video
@Graham_Wideman
3 жыл бұрын
Hey there Great, I think your home-brew tesla coil may be suffering from having that corrugated hat. The peaks of the ridges become regions of high charge concentration, hence high voltage, and thus leak charge to the atmosphere disproportionately compared to the average voltage, this limiting the overall voltage the apparatus can achieve. That's the motivation to have a smooth dome/hat.
@treasuretotrash2067
2 жыл бұрын
You should make a plasma flame circuit
@qarwill
3 жыл бұрын
Hi greatscott, I really want to know how to get started with electronics, logic, Arduino n stuff... Are there any resources (books, courses)
@greatscottlab
3 жыл бұрын
Watch all my videos and you are good to go.
@qarwill
3 жыл бұрын
@@greatscottlab umm... Ok!
@patmelsen
3 жыл бұрын
There is a lot ogf resources-the best thing is to just buy an arduino (there is kits on amazon) and try things yourself. You can also buy a book, they are a really great resources to get started fast.
@qarwill
3 жыл бұрын
@@patmelsen I already have an Arduino, and have done a bunch of projects (7 segment displays from scratch, TFT LED stuff) but they were really not that complex... I really want to know how to create logic gates... But can't find anything that teaches logic (with transistors) :(
@javi10ify
3 жыл бұрын
@@qarwill Its not an easy topic to necessary narrow it done to resources. If you want to get into learning things with logic then I would recommend a game called MHRD. It guides you how to make the basic logic components like an AND gate and NAND gates and so on. Then it will guide you to make more complex components like a MUX and DEMUX. Afterwards you will continue building more complex components until you program a fully functional CPU. And it is very similar to how they are build in real life just scaled way down to more understandable level. But the game is hard and doesn't walk you through how to do it beside the instructions of what it wants. I found it very help to guide me to look things up and understand how the components work. From there you should have better grasp of how logic components work. But in all honesty logic components aren't necessarily going to be all you need to do more complex projects. I would recommend getting into using different boards other than Arduino like an FPGA board (usually programed in VHDL or verilog) and do the same projects that Arduinos has and you find them to be much harder to program and to handle and that will give you better grasp of microprocessors. My classes have been using the TI MSP430 (which isn't a FPGA board its a microcontroller that use C or assembly) development board and we have to learn how to use a 7-seg display for it and how to program the logic of sensor back to make decision. One of the projects was making a traffic light controller that took information from sensors and made decision using that to determine the lights. That was using most logic commands in VHDL.
@matthewmaxwell-burton4549
3 жыл бұрын
Nice vid ! I was wondering, what is the coupling factor between the primary and secondary Tesla coil ? And what is the ressonance frequency of the secondary coil (taking into account the parasitic capacitance). If my memory is right you'll need to drive the coils at this frequency and have low coupling. That's how we got it to work at uni a while ago.
@matteoreiter
3 жыл бұрын
0:55 omg what are those solder joints
@TCPUDPATM
3 жыл бұрын
Your videos are fantastic! It’s so informative to an newbie like me. I do have a completely irrelevant question out of utter curiosity. Your accent is so interesting! I sense many Germanic sounds, but overall you don’t sound German. May I ask where you’re from? My guess is that you’ve lived in a couple of different countries!
@greatscottlab
3 жыл бұрын
I lived my whole life in Germany😉
@TCPUDPATM
3 жыл бұрын
@@greatscottlab Thanks for responding! I guess my understanding of accents needs some work 😳 And thank you for your videos!
@viniciusfriasaleite8016
3 жыл бұрын
Great, now I'm waiting for a video with more power on this tesla coil
@power-max
3 жыл бұрын
I used bootstrap drivers on my tesla coil, see my latest video to see how it performs on 120VAC. (video suggests I used 2 power supplies but for the showcase I just hooked it up straight to halfwave and fullwave rectified mains)
@osa1121-
3 жыл бұрын
Liked even before watched
@bhu1334
3 жыл бұрын
Right timing for my sstc build. I was planning on using half bridge drivers with totem poles. Maybe if it isn't satisfactory I'll use a gdt, with different gate drivers. Btw Great Scott have you tried running your circuit interuppted with rectified mains?
@greatscottlab
3 жыл бұрын
Nope. Sorry. I think my lab is too cramped to ever try out mains voltage directly.
@nozma6615
3 жыл бұрын
Hi great scoot, can you make video about how to repair electronics. For example what should we check at first, what is the common fault and something like this. I think it will be very interesting video. Thank you.
@tejassingh3591
3 жыл бұрын
Very good job
@ronvaiz123
3 жыл бұрын
Great video as always
@Neshx1
3 жыл бұрын
As usual u have a nice hand writing
@JaviersDIY
3 жыл бұрын
Your very amazing sir
@joaolucastorres6845
3 жыл бұрын
Great video as always!!! Cheers from Brazil!!!!
@Lion_McLionhead
3 жыл бұрын
That works for a constant frequency AC load like a transformer driver but not for a low latency, DC load like a stepper motor driver.
@chanakasampath9138
3 жыл бұрын
Thanks,great vedio.
@greatscottlab
3 жыл бұрын
Glad you liked it!
@gencsaracaydin2530
3 жыл бұрын
Man, you got to have a lot of highlighters laying around, when I use them for even a short time they become unsaturated real fast.
@BenLMitchell
3 жыл бұрын
Another video to watch tomorrown
@bhaveshmishra9795
3 жыл бұрын
it's a pulse transformer use to turn on MOSFET and this toroidal is used in old cfl lights
@itamarcohen6868
3 жыл бұрын
Can you make a video about how to select those component values? Interested to make my own Tesla Coil
@Gurux13
3 жыл бұрын
Are you sure it's saturation? The curve seems pretty linear, so it looks like the rate of change of the field drops because the current through the transformer stabilizes. Transformers do not pass DC, and the closer you get to DC, the worse they perform. You will need insanely high inductance values for low frequency transformers (look at the old wall adapters designed for 50/60Hz, and they're sinusoidal). Also wondering what current is running through the transformer. When the gate is charging it can be huge, but for a very short time. If the transformer can't supply this current, the gate charges slowly.
@omsingharjit
3 жыл бұрын
Hy is it bad idea to replace Half bridge Gate driver ic with Gate driver transformer in diy class D Amplifier ? Because you have mentioned overshoot , oscillation in waveform ?
@susceptibility_
3 жыл бұрын
Maybe the isolated screwdriver reduces the arc sizes. Have you tried something grounded?
@muhammedaslams6065
3 жыл бұрын
HEY DUDE.. THIS IS URGENT.. PLEASE REPLY.. Can we make a transistor out of two diodes, just for very small current application?? If doping is the problem... Can we make a diode with highly doped P junction and weakly doped n junction, so that we can use it to make a transistor.... Is it possible?? You are the right person to answer this..
@d614gakadoug9
11 ай бұрын
No. Transistors are sometimes shown as being three "sugar cubes" of doped silicon stacked together. In reality the base region is very thin and must be very thin for the transistor to function.
@hookerno
3 жыл бұрын
I am a big fan of yours, love the videos. In this one though, the inhales were too much and I couldn't watch the video because the sounds were too disturbing.
@Spark-Hole
3 жыл бұрын
I think the reason is torroidal coil give higher voltage signal to drive the gates than the IC driver chip and the signal from Torroidal is closer a sine wave than the chip which is square wave. In the case of tesla coil sine wave is more useful than square wave.
@stargazer7644
3 жыл бұрын
It's a 1:1 transformer - there's no voltage change.
@DEtchells
3 жыл бұрын
I wonder: Could you avoid the core saturation by just reducing the drive voltage, then adding more secondary turns to boost the gate drive voltage back up again? I guess that would add more circuit complexity, to make a driver that’d run the transformer primary at a lower-than-system voltage, but I’m curious if that would fix the issue of core saturation, all else being equal?
@cornevanzyl5880
3 жыл бұрын
Wow man, thank you. You really taught me something.
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