What are MOSFET gate drivers? Why do we need MOSFET gate driver? MOSFET driver explained.

День тому

#foolishengineer #MOSFETdriver #gatedriver
0:00 Skip Intro
00:37 Logic MOSFET driving
00:54 Drive Voltage conversion
02:45 Disadvantage Drive Voltage conversion
03:51 MOSFET driver advantage
05:09 Low Voltage compatibility
05:31 Transient protection
06:04 Switching speed
06:24 Isolation
06:36 High side drive
References:
Toshiba app note - MOSFET Gate Drive Circuit
www.ti.com/lit/ml/slua618a/sl...
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КОМЕНТАРІ: 119

@mrmilan2012 Рік тому

Excellent way to introduce any subject with graphical pattern.. 👍👍 This s the key of electronic. Thanks 🙏

@gkdresden 2 роки тому

Many makers use their MOSFET gate drivers not with their full performance. So they are often surpriced by considerably higher switching losses than expected. Most of the gate drivers devices can provide gate currents of 1 A, 4 A or even more. But they can't provide them if the circuit design has no buffer capacitors immediately at power supply pins of the gate driver IC and also if the MOSFET is considerably separated from the gate driver's output pin. The high current must be supplied within nanoseconds. This is impossible if there are considerable line inductances.

@shiv8144 10 місяців тому

Hi can u help me ? There is a defect in my system’s pcb and I doubt gate driver IC

@andrewparker2751 2 роки тому

Very well done. I appreciate the animations, esp. showing when the mosfet acts like a switch or an open.

@FoolishEngineer 2 роки тому

Thank you so much for watching!! Please don't forget to subscribe to our channel

@electronicslab_in 2 роки тому

Switching a high side mosfet is bit tricky. For example, using a simple transistor based gate driver for N type mosfet connected on positive rail of buck conveter would cause a shoot through fault. Gate drivers ic becomes really handy for such cases

@tonysofla 2 роки тому

You do not always need one if you don't do high speed switching, change gpio setting to high drive strength and get a low Vgs mosfet that is 100% on at 1Volt like the RU1J002YNTCL

@Bednar121 10 місяців тому

Awesome video, really good explainations, and no tomfoolery, straight to the point, yet no information is missing ^_^

@HeavyMetalPianoChnl 2 роки тому

That was the best video I’ve seen on the subject. Thank you very much!

@FoolishEngineer 2 роки тому

Thank you so much for watching!! Please don't forget to subscribe to our channel

@opera5714 2 роки тому

Many think they always need to use a high driver in a low speed application. They can get into a pack of trouble when these fast switching currents introduce noise. I sometimes purposely slow down switching speeds to prevent these problems. I prefer to use drivers with low supply voltage protection to avoid FET overheating due to low drive voltage.

@durgaprasadnaredla5832 2 роки тому

The best lecturer I ever had in UKposts.. The concept is clear cut.. Excellent explanation.. 🙏🙏

@FoolishEngineer 2 роки тому

Thank you so much for watching!! Please don't forget to subscribe to our channel

@shiv8144 10 місяців тому

@@FoolishEngineerplease help me sir I will share defect once u give me email id

@beeman1885 2 роки тому

The youtube algorithm put this in my feed. I thought it was very well done. I did subscribe as many other videos on the channel look just as interesting. If I had to make one suggestion, don’t contaminate a great instructional video with political figures (of any persuasion) even if used for comic relief. Some of us (I’m in the U.S.) watch videos like this to learn and to get away from the news of the day. Just my 2 cents for what it’s worth. Great work.

@FoolishEngineer 2 роки тому

thank you for your suggestion

@thpeti 2 роки тому

If no high frequency load switching requierd (eg. pwm motor speed control, inverter etc.) I use 74HCT595's for driving mosfets. Their outputs are also grounded by 10k resistors, to turn off outputs when the registers are in high impedance mode. I run these shift registers from 5V, and I use an optocoupler for level shifting and for protecting the micro (which runs from a separate 3.3V power rail) against transients. I've built dozens of these output cards, and all of them are running smoothly. I also use a trick, an extra optocoupler, which is fed through a capacitor, and connected to a GPIO which state is inverted innevery loop cycle. Every H-L transition is discharging a capacitor by the emitter of the optocoupler, so if the program freezes on the micro, all outputs will be turned off immediately.

@rickhunt3183 2 роки тому

pretty slick...Im going to start doing that as well.

@eacosnypher9648 3 місяці тому

Thank you very much, you are a great teacher!

@raratronics5002 10 місяців тому

Well crafted,appreciate ur efforts

@geoffreyguy8498 2 роки тому

Hi yes I was playing today so I am beginning to know what you are talking about. Well done.

@FoolishEngineer 2 роки тому

Thank you so much for watching!! Please don't forget to subscribe to our channel

@luisalbertoparada5757 Рік тому

Excelente clase... Un new suscriptor. Venezuela

@FoolishEngineer Рік тому

Thank You!

@Packer1290 10 місяців тому

Any suggestions for a single, cheap gate driver IC like the one shown in the video?

@j.d.3269 2 роки тому

Interesting! Subscribed.

@danielimanah8681 2 роки тому

Nice description for mosfet drivers which very tricky and logical

@FoolishEngineer 2 роки тому

Thank you so much for watching!! Please don't forget to subscribe to our channel

@danielimanah8681 2 роки тому

But why do mosfet blowup if any error happens to the drivers or trigger ic mostly to H-Bridge inverters?

@Bianchi77 11 місяців тому

Nice info, thanks for sharing it :)

@paulmillard1130 2 роки тому

Brilliant! I use so many mosfets and my drivers are rather basic.

@FoolishEngineer 2 роки тому

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@kkgt6591 2 роки тому

What an amazing explanation

@FoolishEngineer 2 роки тому

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@bernym4047 Рік тому

Well explained. Thank you.

@FoolishEngineer Рік тому

Thank you so much! Please show support to my video with Super thanks.

@renaissanceman5847 2 роки тому

Just use a MAX232... it accepts a logic input and can drive a MOSFET or IGBT with ease. the MAX232 was designed to drive RS232 signals though inductive and capacitive loads and provides both a positive and negative output which s ideal for driving gates and it generates its own step up voltage

@solosailorsv8065 Рік тому

and it is FAR cheaper too

@tranluan9391 2 роки тому

It's very helpful video. Thank you

@FoolishEngineer 2 роки тому

Thank you so much for watching!! Please don't forget to subscribe to our channel

@electrical_engineer1 Рік тому

Sir, how to worke three phase circuit mosfet in smps, please make in video. How yo test safety for live supply pcb in there phase ,mosfet gate and source voltage

@rameshwarshelke4633 2 роки тому

Really thanks sir 🙏

@FoolishEngineer 2 роки тому

Thank you so much for watching!! Please don't forget to subscribe to our channel

@DOuGTrainer 7 місяців тому

I have a helpful pronunciation suggestion for “provide” at 0:10 and “voltage” at 0:12 which I'd like to share with you offline. Regards. -DP, Henderson, NV, USA

@AlexanderBukh 2 роки тому

well explained, ty

@FoolishEngineer 2 роки тому

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@edwardhughes352 2 роки тому

nice explanation

@FoolishEngineer 2 роки тому

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@jeebannayak8449 8 місяців тому

For n-channel MOSFET gate driver, you have considered 12V as supply voltage. So Vgs is 16V. If supply voltage will be 30V then Vgs should be 34V??

@TB-jl9fr 3 місяці тому

as a highside switch yes.

@palliyil 2 роки тому

Which good gate driver ICS are available in local shops in India? Need it for 100khz ish switching. I practically took a list of different ICS to the shop, and the only thing that was available out of that was mcp34151, which i did buy. But was rather expensive. Was wondering if there are cheaper ones available

@FoolishEngineer 2 роки тому

IRS2110 is the basic driver IC you can find

@xurshidsodiqov9323 2 роки тому

Goog job. Great thanks 😊

@FoolishEngineer 2 роки тому

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@xurshidsodiqov9323 2 роки тому

@@FoolishEngineer Of course 😎👍

@creativeideaseee 2 роки тому

Wow super

@FoolishEngineer 2 роки тому

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@minakshisingh882 Рік тому

IF i am using TC4420 gate driver ic we didnot gate output voltage of 14 volt

@gazzacroy 2 роки тому

nice video fella :)

@FoolishEngineer 2 роки тому

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@firdavsmutalipov7479 2 роки тому

Thanks

@FoolishEngineer 2 роки тому

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@unalakdogan9416 2 роки тому

perfect

@FoolishEngineer 2 роки тому

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@rameshwarshelke4633 2 роки тому

Make a such kind of logic ckt 🙏

@FoolishEngineer 2 роки тому

Yes. next video

@shiv8144 10 місяців тому

Can anyone help me ??? MOSFETs are getting defective again and again in my system’s pcb. IR2113 IC is there to drive the MOSFETs. I will share pcb photo and all details if anyone have good knowledge and ready to help me Someone reply please because system is very critical and it’s a must for us to sort out that MOSFETs problem

@metallitech 2 роки тому

Great, thx,

@FoolishEngineer 2 роки тому

Thank you so much for watching!! Please don't forget to subscribe to our channel

@jameskuria1664 Рік тому

This is a smart Engineer

@FoolishEngineer Рік тому

Foolish is the new smart!!

@user-lv9ju9ed3g 2 роки тому

will there be a video about llc resonator?

@FoolishEngineer 2 роки тому

Will work on it

@user-lv9ju9ed3g 2 роки тому

@@FoolishEngineer Thanks

@uzairahmed6765 Рік тому

Hello .. sir i made SG3525 or ir2110 smps circuit but ir2110 but HO side shows 12v ..but mosfet gate handle maximum 10volts .. can you guide me why HO side show 12v rather than 5volt

@shiv8144 10 місяців тому

Bhai yyr mere system m 2 MOSFETs h aur wo replace karne pe khrab ho rhe h IR2113 IC is used as a gate driver Thoda help kar doge kya ki kya root cause ho sakta h problem ka Because mere ko Itna knowledge nhi h M pcb photo wgera share kar dunga contact number deke aap yes bolo to

@creativeideaseee 2 роки тому

May i know which software using for this circuits

@DayTradingRezaNiki 2 роки тому

please answer him :D

@creativeideaseee 2 роки тому

Software name please

@anuragmahajan5919 2 роки тому

If you're asking about simulations, then it is LTSpice

@creativeideaseee 2 роки тому

I am asking hou the animation is happening in the video

@FoolishEngineer 2 роки тому

After effects

@suncrafterspielt9479 2 роки тому

If the key goal of the driver is to quickly turn on and of the mosfet. Why is there a gate resistor limiting the current? Can anyone please explain?

@Ormaaj 2 роки тому

It's usually a bodge to mitigate the ringing problem alluded to in the video. Ideally a gate resistor isn't required. There are other ways to deal with it.

@suncrafterspielt9479 2 роки тому

Thanks, could you maybe expand on what other ways are possible?

@Ormaaj 2 роки тому

@@suncrafterspielt9479 You can clamp the gate signal with a zener, possibly combined with a tank circuit to eat excess current from the top of the wave you've chopped off. If you can keep the inductance low enough you might not need to do anything at all. Really depends on the application and layout and you'll need to run tests and simulations to determine what compensation is needed if any. This video mainly pertains to digital switching of power mosfets which can have quite large CGS > 1 nf.

@soneralpay7565 2 роки тому

Thanks..

@FoolishEngineer 2 роки тому

Thank you so much for watching!! Please don't forget to subscribe to our channel

@kumarand2486 2 роки тому

👍🙏

@ruwanpremashantha428 2 роки тому

Supper

@FoolishEngineer 2 роки тому

Thank you so much for watching!! Please don't forget to subscribe to our channel

@adarshbairwa8035 2 роки тому

Bro aap kis field me work kr rahe ho..I need your help

@FoolishEngineer 2 роки тому

Please email me your doubt. you can find my email id on my channel

@adarshbairwa8035 2 роки тому

Sir please check your mail.

@irshicosmos3233 Рік тому

koelie??

@craigivas4037 Рік тому

Hello sir. Any chance you can respond to me because I need help with my mosfets in parallel.

@FoolishEngineer Рік тому

please email me

@shiv8144 10 місяців тому

@@FoolishEngineersir email id please I need small help

@carlosmf6954 4 місяці тому

🙂

@rajkumarsaini3840 2 роки тому

Mosfet driver can drive diffrent mosfet

@kyawwin7020 Рік тому

@slaweksuchy2702 2 роки тому

wat are you're saing i dont understood a word.

@FoolishEngineer 2 роки тому

same here

@glenrebello5450 2 роки тому

@@FoolishEngineer 😄

@AspartameBoy Рік тому

Please do synchronous rectification of frequencies > 100,000 Hertz

@FoolishEngineer Рік тому

Do you have any reference circuit?

@kyawwin7020 Рік тому

မင်္ဂလာပါ

@kamalswain7728 Рік тому

Driver ic number pls send

@Creavids 2 роки тому

Also watch Isolated Gate Driver 3D Video ukposts.info/have/v-deo/e2ZjiHtuZ2Z12Hk.html

@user-qo1xs2ro5w Місяць тому

gggggg

@andresmedina1279 2 місяці тому

Lol, why did kamala harris make an appearance?

@williamcampbell9859 11 місяців тому

Sick of these accented vids

@JohnSmith-xn3fr 2 роки тому

horrible English, or whatever it was

@FoolishEngineer 2 роки тому

This is not a an English class

@MrArlenBrazill Рік тому

@@FoolishEngineer Hilarious reply. Your English is excellent BTW. I guarantee you John Smith speaks one language - at best.

@user-ki7gj1hi9l 10 місяців тому

ОТЛИЧНО

@HeavyMetalPianoChnl 2 роки тому

That was the best video I’ve seen on the subject. Thank you very much!

@FoolishEngineer 2 роки тому

Thank you so much for watching!! Please don't forget to subscribe to our channel