Here is why Gate-Drive Transformers are sometimes essential! | MOSFET Driver Part 2 (Potential-free)

[@Asu01]

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]

LMAO

[@greatscottlab]

Smooth is my middle name ;-) Oh boy. Secreat revealed.....

[@liviuconstantin9960]

@@greatscottlab How about you reveal another secret: Did you take the "Great Scott" name from the "Back to the Future" movie?"

[@JjMn1000]

Lol

[@imbw267]

The game was rigged from the start

[@anuragdeshkar]

Man your video production quality is best and also technical knowlegde!!

[@greatscottlab]

Thank you :-)

[@supreethathreyas4577]

1:24 greatScott : decent arcs electroboom : !@#$%

[@naivedyasharma5821]

Lol

[@felixb.1756]

Look at my tesla coil on my channel. These are decent arcs!

[@jhoughjr1]

i hate to say but my tiny coil is almost as big as those

[@Bhavesh_g20]

It feels so good whenever I see that notification from great scott Really appreciate your work

[@greatscottlab]

Happy to hear that!

[@Bhavesh_g20]

@@greatscottlab I've been following you since years I'm very glad you replied It means a lot to me 😊

[@Av-ks8uc]

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]

Great story mate😁 Keep going👍

[@reeffisher9393]

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. :-)

[@rolandasa.1112]

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]

Wonderful :-) I love to hear that.

[@GnuReligion]

A Dixon Multiplier can also be employed to drive/store a charge of Source + 12V, then drained to the gate through an optocoupler.

[@andrewkay9226]

As always a totally engrossing & educational video. The schematic drawings & accompanying explanations are the best on KZbin

[@micaiaskauss]

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]

What if he stops breathing? Is that a satisfactory solution for a home studio?

[@micaiaskauss]

@@gorillaau No, I actually like this guy, but you can stop if you want

[@Debraj1978]

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.

[@Buzzhumma]

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 !👍🏻🙏

[@darekmario446]

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]

Awesome👍

[@750kv8]

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]

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]

@@d614gakadoug9 - I admit i was mixing up things a bit.

[@Headbutter-Lettuce90]

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

[@adarsharao]

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.

[@rougenaxela]

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. :-)

[@rohanpawar1603]

The way u draw circuits is amazing

[@greatscottlab]

Thanks :-)

[@attackaffection5444]

Congratulations on 1.5mil subscribers .Wished electronics was a bit more mainstream so you could have a lot more :D

[@greatscottlab]

Well, I am still happy that so many people watch my videos and are interested in the subject.

[@attackaffection5444]

@@greatscottlab 👍

[@StephanYazvinski]

This is pretty cool keep it up.

[@on8rth]

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]

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%

[@ELECTROGYAN]

Thank you for this video But hey Scott can you explain what is boost trapping.... in briefly..

[@greatscottlab]

Watch Part 1.

[@charlesdickens6706]

.....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 .

[@JADES-GS-z13-0]

Please make a HFSSTC.

[@titasroy9820]

I want it too

[@prasunkarmakar3303]

please please bro make video on this topic❤️

[@avikroy9698]

You should collab with electroboom. One check circuit 5 times before running it and other one blow circuit breaker 5 times.

[@greatscottlab]

I can put it on my to do list :-)

[@qarwill]

Hi greatscott, I really want to know how to get started with electronics, logic, Arduino n stuff... Are there any resources (books, courses)

[@greatscottlab]

Watch all my videos and you are good to go.

[@qarwill]

@@greatscottlab umm... Ok!

[@patmelsen]

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]

@@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]

​@@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.

[@pete3897]

What a seriously good serious this is :) EDIT 8:19 - now that sounded different! Great job :) Your explanations are fantastic BTW.

[@warrenking1815]

Very nice to see a left handed electronic engineer( like me ) who can draw such great schematics!

[@greatscottlab]

Thanks✌

[@matteoreiter]

0:55 omg what are those solder joints

[@electrohardik8497]

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

[@Dudong18]

I'm also your electrifying fan, keep it up

[@greatscottlab]

Thanks mate :-)

[@Dudong18]

@@greatscottlab No probs, it's also my hubby

[@michalkana9764]

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]

Old one is still right here :-)

[@michalkana9764]

@@greatscottlab Thanks god. I think you throw it away. How expensive was that new.

[@michalkana9764]

BTW: Diy or buy voltage tester for outlets.

[@theogaillard5355]

@@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]

@@theogaillard5355 Im from Czech Republic, and here i can buy one for 30 dollars.

[@attackaffection5444]

Woah didn't expect that coming!

[@Stoneman06660]

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]

Check out the Tefatronix mini SSTC circuit

[@Try58]

Hello, in minute 10:46 does it means that it requires 25kHz of frequency to make the secondary transform to work?

[@charletonzimmerman4205]

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.

[@davidwang_music]

Are base drive transformers for BJTs different to gate drive transformers or are they the same?

[@nibba7614]

1:05 how this clamps called? Im looking for order the same

[@BogdanSerban]

From my experience, green toroids make the best GDT cores. And they're really cheap if you get them from China.

[@craigs5212]

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.

[@patrickjoseph9476]

Scott, bootstrapping can be also done for a single MOSFET too. Refer, 0033mer's video on MOSFET bootstrapping.

[@omsingharjit]

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 ?

[@amansaxena5898]

Love the MOSFET series ♥️

[@bashaaksema94]

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

[@TheRevWillNotBeTelevised]

Did you record this after running up a few flights of stairs? The breaths are real.

[@greatscottlab]

No

[@TheRevWillNotBeTelevised]

@@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]

Yes its annoying...🙁🙁

[@robson6285]

@@TheRevWillNotBeTelevised no i didn't notice. For sure nót annoying

[@TheRevWillNotBeTelevised]

@@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.

[@firstlastname99]

I'm getting a great education from your work on this channel.

[@Graham_Wideman]

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.

[@omsingharjit]

This types of videos are so helpful

[@literallyahmadrn]

Great Scott I watched a video where you made your own IR remote and you ran the arduino mini off a 3v button cell. I was a bit confused because I thought you could only power the arduino mini with 5v or 6 to 12v with the vin pin. I did some research and found out that you can't power an arduino through the 3.3v pin. So, can you tell me how you powered it? (So, I can power my projects off a 3v button cell but using an arduino nano and can you power an arduino with 3v?) Did you use a boost converter or is it just feature on the arduino mini through a different pin?

[@greatscottlab]

Connected it to the Vcc pin.

[@literallyahmadrn]

@@greatscottlab Thank you.

[@matthewmaxwell-burton4549]

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.

[@xani666]

Wait, why you need freewheeling diode parallel to a mosfet ? They already have diode in the same direction

[@d614gakadoug9]

Exactly. Long ago I saw circuits using a diode in series with each FET and an external diode used across that series arrangement, the intent being to keep the intrinsic body diode from conducting because the body diodes used to be quite slow. If you kept it from turning on, you didn't have the slow reverse recovery problem. It just isn't necessary with modern FETs except in very unusual circumstances. The intrinsic diodes aren't super fast, but they are good and they are now well specified instead of something that was "just there."

[@xani666]

@@d614gakadoug9 Efficient designs still use second mosfet to open "in the other direction", just to avoid diode drop.

[@bhu1334]

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]

Nope. Sorry. I think my lab is too cramped to ever try out mains voltage directly.

[@DEtchells]

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?

[@poweriserboy]

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 :)

[@freewarekr]

I saw it well. The content structure, courses, and graphics are all nice. Learn a lot.

[@jimhibbard1546]

Twisting wire reduces cross talking but for coupling windings it might make the signal unstable and limited by frequency.

[@Caio_Meira]

Thank you! I would to ask a question. If I wish to operate my MOSFET with lower frequency, should I choose a gate drive transformer with higher Voltage-uSecond ?

[@vivekchauhan7468]

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.

[@jim40135]

10:32 woah woah woah, wait a minute... you've got a *purple* marker pen as well? :o

[@letstec9117]

bro biggest fan

[@greatscottlab]

Thanks mate :-)

[@itamarcohen6868]

Can you make a video about how to select those component values? Interested to make my own Tesla Coil

[@dzee9481]

Just Curious if the same would be true for IGBT? I would assume IGBT are built for driving inductive loads more efficiently?

[@JoelLandivar]

I have one question that might be dumb. For the toroidal gate drive transformer, does it matter the amount of turns ? why 13 and not 20 on all of them?

[@susceptibility_]

Maybe the isolated screwdriver reduces the arc sizes. Have you tried something grounded?

[@Gurux13]

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.

[@nachoeschetini1718]

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

[@Barracuda48082]

How about amplification using mosfets? A small 5 to 8 watt portable audio driver.

[@saxon215]

As always a well researched and informative video. I wish I could hand draw circuits as neatly as you

[@leaderautomation7586]

Great job i tried to to find a circuit generate a alternatif current and change between 0 and 1 A du you have an idea to do thise circuit

[@filenotfound__3871]

A short question, whats the simplest way for arduino to controll IRFz44n mosfet with minimal voltage drop with PWM? I was thinking of an lm358n OPamp. And for 2-4A worst case on an 49A mosfet, do I need a heatsink?

[@hosseiny1973]

At higher freq u need to use higher current to switch on and off the mosfet to be cold ... So u can use totem pull for low side mosfet And for n mosfets at high side u need gate driver transformer or some ICs like IR2111 or IR2183

[@filenotfound__3871]

@@hosseiny1973 So OpAmp @14v is not good?

[@hosseiny1973]

@@filenotfound__38711. op amps can't supply much current to switch fast 2.10V is eanugh more than 10v need more current to charge and dis charge when its dont needed(at 10v its complitly turned on) 3.I perfer u to use logic mosfets they turn on complitly by 5volts!(like IRFZ44L) 4.totem pull is easiest way U can supply it by a L7810 Or 7812 if your voltage is higher(add capasitor for that if u'll use)

[@filenotfound__3871]

@@hosseiny1973 I could use the totem poll method, is the C945 signa sransistor enough, with its PNP equivalent, So if in the future I use the irfz44l, i can use it straight from the arduino without any losses?

[@hosseiny1973]

@@filenotfound__3871 i think at under 1khz its possible 2amps not much...u can calculate gate current by thise mosfet total gate charge Moximum current Voltage T=1/ferq

[@SolaLupus]

Nice video, didn't know about gate transformers before. Do they also apply to low side switching?

[@greatscottlab]

Yep. You can use them for switching your MOSFET wherever it is positioned ;-)

[@hassankhalid2964]

If I havent started my PhD I wouldn't have understood the gate driver importance from your videos 😅

[@joaolucastorres6845]

Great video as always!!! Cheers from Brazil!!!!

[@masondaub9201]

Funny timing, I just made my first Tesla coil a couple weeks ago with a gate transformer.

[@tvdylan]

so what are the vital things might need to do to protect my mosfet when using a gate driver ? i have a little gate driver circuit already. can i just attach it to the mosfet and off we go ?!! or do i need to put protections and extra things to pull down the voltage. i attached my gate driver and the mosfet started smoking ! but it was an already damaged mosfet. please give me some advice ! : ) .. its for powering a pulse motor, so im pulsing a coil with 24 volts. two batterries in series of 7amp hours each. mosfet is IRFS 840BT

[@Lion_McLionhead]

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.

[@eventhatsme]

Sorry I didn't catch why the gate-drive transformer is used - Is it for any high frequency switching purposes? At what kind of frequencies would you start considering using this component?

[@d614gakadoug9]

Generally you use a gate drive transformer when you need to drive high-side N-channel FETs or IGBTs. If used them in several 100 kHz half-bridge designs.

[@maks886]

Wait a minute. But how do we drive the primary side of the gate transformer? Is a mosfet driver IC a viable solution? Or maybe some kind of transistor output stage is needed? What is the input current into such a transformer?

[@stargazer7644]

The primary drive depends on the secondary load of course. A mosfet gate is a pretty small load. Just drive it from your logic pin if you can.

[@maks886]

@@stargazer7644 Wow, I didn't expect this to be enough. Thank you!

[@sigmawarrior.fokeryou]

Hi, could you please make a video talking about the reactance (reactive power) needed to run a induction motor as generator (induction generator)? I would love to see your analysis of it's waveform, and how they can't produce their reactive power.

[@sigmawarrior.fokeryou]

I mean, what if we just provide enough capacitors to keep it running and rectify it's output?

[@selimdumlu4519]

I need for low frequency isolator transformer so like for 50 Hz is there any transformers for that frequency?

[@atharvap8]

Hello sir, i have a question that , i have an inverter battery which does not last for long, can you please suggest any solution to repair it? Thanks😊😊😊😊

[@greatscottlab]

Replace it

[@atharvap8]

Ok thanks for your advice😊😊

[@eugenepohjola258]

Howdy. How about using a P-Channel Mosfet as the upper one ? Regards.

[@glasslinger]

They are not available in as low of "on resistance" as the N channel. Also, this does not eliminate the need for the transformer in an H bridge circuit.

[@korishan]

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 😜

[@dipubiswas8520]

Hi great scott, your videos are always very informative & practical

[@neagoecatalin879]

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!

[@naivedyasharma5821]

Hey I want a multimeter for beginners can you suggest me some low cost multimeter

[@benbaselet2026]

That really depends what you want to measure with it (mains or low voltage, what kind of measurements you want like capacitor or temperature etc.). I have an aneng AN8008 for low voltage hobby work and it's a nice compact little companion, very cheap. For a bit more size and accuracy I like my Uni-T 61E, around 50 bucks or so. There may be newer models out now but most cheapo meters will do regular hobby grade voltage and current measurements just fine so any cheap meter should do to get started with. I also have a few of those cheap 20 dollar component/transistor testers (search ebay for GM328 transistor tester to get an idea) to measure cap ESR, diodes, inductors and random parts, they seem to work pretty well too for hobby level stuff.

[@EasyElectronics2412]

Beautifully explained! ❤️

[@greatscottlab]

Thank you! 🙂

[@bhaveshmishra9795]

it's a pulse transformer use to turn on MOSFET and this toroidal is used in old cfl lights

[@taranagnew436]

so i understand that the gatedrive transformer reaches/outputs magnetic waves at 102V, Is that correct?

[@benbaselet2026]

No...

[@egbertgroot2737]

Could you use a gate driving transformer in a PWM audio mosfet stage?

[@greatscottlab]

I think so

[@red1246]

Interesting, but can you wire both diagonal mosfets gate of a h-bridge in parallel in order to well.... Drive an h-bridge

[@eDoc2020]

You can't wire them in parallel because one needs (supply voltage + gate voltage) relative to ground while the other only needs gate voltage from ground. What you can do is use four secondaries on a gate-drive transformer.

[@firefox1136]

Very nice, I hope, that at some point we will see it at full power. (230v)

[@aThanatos8k]

Hello! How does a driver transformer handle dead-times needed in an H-bridge circuit with MOSFETs?

[@MuhammadHanif-bx4pb]

The slow rising time of the voltage will ensure the mosfet stays off until it reaches the threshold. So the transformer provide a natural dead time

[@d614gakadoug9]

Drive the transformer primary with a bridge. If the control IC can handle sufficient current at its outputs, you can connect the primary directly to the those outputs, possibly through a capacitor "just in case" you might get an unwanted DC component. If the control IC can't deliver enough current, use a gate driver IC at each output. The output of a gate drive is itself a push-pull circuit, so to of them make a full bridge to drive the transformer. A good gate drive transformer produces very fast rise and fall, contrary to what other people claim. I've used gate drive transformers very successfully in half-bridge converters up to 1 kW at 100 kHz. If you are making a low-frequency H-bridge, as you might for an inverter, then floating gate drive power supplies and high-side gate driver ICs would be a better choice.

[@d614gakadoug9]

@@MuhammadHanif-bx4pb No, it does not. A good gate drive transformer provide very fast rise and fall times.

[@muhammedaslams6065]

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]

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.

[@vishnup.s.8987]

This is moment the moment I have been waiting for

[@squadus1986]

Bro .. malayali alle

[@rameshboina8832]

Sir can u make time telling clock every hour useing pic ic or please reply me

[@moiquiregardevideo]

I am starting to understand inductors and transformers thanks to your videos on the subjects. It would be interesting to know why the tesla coil produce higher voltage with the transformer. Is it because of a hard start and hard stop, because of the spikes on each edge? Or is it because or slightly overlapped on/off for both transistors from faster turn on? Does the improved circuit consume more current when given the same power supply voltage?

[@LalanDesai]

ElectroBoom should watch this video!

[@greatscottlab]

Maybe he already did?! :-)

[@naivedyasharma5821]

@@greatscottlab yes

[@unknowunknown9096]

could you do an improved version of tesla coil?

[@Spark-Hole]

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]

It's a 1:1 transformer - there's no voltage change.

[@balinthorvath9569]

Hi what kind of capacitance ar you using in the practical example?

[@greatscottlab]

Not sure. A couple of pf maybe? I talked about that in my last tesla coil video series. So watch that.

[@balinthorvath9569]

Thanks