thanks I got a lot from this video. if I can only retain it now. I guess I'll be watching it a few more times. great way of laying everything out. thanks
The capacitor recommended in the HCPL-3120 datasheet is the one I used. The resistor for the gate driver really depends on the IGBT in question. For the 555 timer, that also depends on the IGBT in question. Obviously smaller IGBTs can use a higher switching frequency, and larger ones will need a lower switching frequency. If you can be more specific about your project, I'd be glad to help
I believe the shout has brought me many more subscribers! Will you show an IGBT working on your channel soon? Thanks for watching and for giving me the shoutout
I am a retired Research and Developement Electronics Engineer my good friends. All being well I shall be uploading videos again from next month (September). Have a great day.
This is great! Explained quite nicely. So, for a DC to single phase AC converter, you’d need 4 or two of these? (Sorry if you already mentioned it, didn’t have time to watch the whole video)
i just seen and heard ant talk about you in his videos on ants channel high1voltage1rules and hes awesome!! you have some good videos too! subscribed thank you
Wow this video is great and has greatly increased my knowledge on igbt gate drivers and i am definitely going to try this stuff with my 555 :) i had no idea you could build a induction heater with the 555 :) SUBSCRIBED:)
Hey bud' hope ya well. Still playing with igbts lol and loving them. All thanks to you 👍😉 Don't know if you seen the massive amount of igbts from the scrapyard some time ago, and I think iv enough lol to last a life time. 😉 Well my friend I hope you are good and well. And still getting them subs! 😊 Be safe, Anthony High1voltage1rules
This video is so cool mate, iv watched a couple of times now, and its teaching me a lot about the igbt. Thank you again my friend. ;-) P.s hope the shout for you has increased you subscribers ;-) All the best and keep up the fantastic videos Anthony.
I cannot thank you enough my friend ;-) That was so kind of you to go out your way like that and make this video ;) I will give it a go soon" and go back to this video for support and see how I get on lol ;-) The next time I make a video, im going to thankyou and get more subscribers your way because your channel is awesome and you deserve more ;-) There's not many peaple like you that's willing to help...;) Many thanx for sharing your video ;-) Thanx again. BIG THUMBS UP*
Although I wouldn't recommend using an audio signal for driving IGBTs at high power, I can tell you that it does work. I've used IGBTs and the HCPL-3120 with an audio signal to modulate a small lamp with music. The induction heaters I show on my channel usually use the audio output from a PC as well, although the PC would be generating a sine or square wave and obviously not playing music. Thanks for watching
I admire your understanding of electronics and wish I had it myself! Mechanical things have always came natural to me, but electronics is still a hard work in progress! Did you go to school for this?
Hi, great video. I got the HCPL 3120 and an IGBT FS20R06VE3_B2. I am trying to drive an old pancake motor on a washing machine. Its a form of Brushless DC motor. I been searching and searching but ur video is the closest to what Im looking for as everyone else seems to just power up tiny low powered motors. Most IGBT circuits drive inverters that drive ac 3 phase motors. Any help is appreciated as to how your circuit can drive my motor.
Thank you for every thing, I work on photovoltaic flyback inverter consists of center tap transformer, two diodes and two IGBTs to feds a ac current tot the grid I hope to learn me about how can be connection the terminal IGBTs to the transformer and gate drive terminal
HCPL-3120 is suggested for use with IGBTs up to 1200v/100a or 600v/200a. You can use the output of HCPL-3120 as a signal input for a larger gate driver, such as IXDN630CI for driving larger IGBTs. In this way, the HCPL-3120 merely acts as an optoisolator. You can use HCPL-3120 with larger IGBTs, if you make a sacrifice in switching speed. By selecting a gate resistor with a higher value, you can use HCPL-3120 for the larger IGBTs, although switching will be slower. Thanks for watching
I don't know too much about SCRs, but it depends on what you will be using the SCR for. SCRs are current controlled, and they take very little current to trigger compared to an IGBT. You can use a pulse transformer to trigger a SCR into conduction. I'd say that might just be the best way if you are using them to rectify AC
Hi, I have learned MUCH from your great videos. Concerning the gate driver, I need one that I can operate at Vcc=12v, since my application is automotive. Do you know how I can drive a 1000v high voltage IGBT with a driver that does not need more than 12v? THANKS MUCH!!!
You can still use pulse transformers for an inverter, but the outputs of the transformers must be reversed for each SCR. So for example, one SCR is off while the other is on for each phase.
I note, the 3120 data sheet says : "The voltage and current supplied by this optocoupler makes it ideally suited for directly driving IGBTs with ratings up to 800V/50A. For IGBTs with higher ratings, the VO3120 can be used to drive a discrete power stage which drives the IGBT gate." We are using a MG4001J rated 600V/400A. Will it be necessary to add an additional power stage??How?? Thank you very much. Your video is excellent
Yes you can absolutely use a full bridge IGBT inverter. Just use 4 gate drivers instead of two. You will still need some capacitance but not nearly as much. Thanks for watching
If you are making a gate driver with protection what might concern you is the speed in which it reacts to an overcurrent. Avoid turning off the IGBT too quickly in a short circuit, that could lead to a very high turn off voltage. Induced noise into the protection circuit can be a problem so make sure you have a good layout. Make sure that you will be able to supply the peak gate drive current and that your gate driver will turn off if the gate supply voltage falls too low.
i notice in this video that you are switching your HCPL-3120 optocoupler with only 2 volts. The datasheet shows that the Max Input Forward voltage current is 1.8 volts. What was your formula for choosing your LED resister? My TL494 KA7500 Driver Board seems to be putting out around 10 volts at the signal. (Now that I hooked it up right!) I am guessing that my resistor would be around 820 ohms at the input of each LED. Can you talk more on choosing your LED resistors and your gate resistors?
Hello friend fastly I did use this gate driver on my mosfet power inverter and the gate didn’t turn fully causing a small short circuit blowing the mosfet and I had to use a 700ohms resistor to turn the gate of because I was using 18 voltage at the gate
want to chop AC voltage using IGBT...basically using generic buck converter circuit. Can a bridge rectifier across IGBT be helpful so that IGBT always sees a voltage drop across its drain and source and AC voltage can be easily switched?
Good video sir, I have designed and assembled similar circuit to drive a full bridge igbt. The circuit works fine below a bus voltage of 70 volts but above 70 v my one side igbts blown out several time. Can u please share what's the problem.
Hey, i have a question, so after few of IGBT, i dont have a real answer of that I'm just asking if the SKM145GB123D can switch at 120~ Khz, and what's the maximum frequency ? thx! (i'm noo for the datasheet check)
Hi,In a MOSFET application in high side configuration, what are the pros and cons to using a charge pump to drive the gate? Is it better to use the HCPL3120?
nice explanation man , so basically need of a igbt or mosfet driver is to switch them on and off as fast as possible properly at high frequencies . so that igbt's output current will be function of signal at the gate . isn't it right ??
Hi I need some help An a IGbT I have a q41 quickroton motor it has an igbt in it need to use a driver to run the IGBT speed controller it's a sewing machine servo motor .thank you
hey thanks for ur video i am looking to make gate driver circuit with all protection, so before i made it what things do i need take in my consideration
could you kindly give the best driver ic and suitable IGBT for controlling the AC induction motor? seeking your valuable response as soon as posssible.
The BAP1793 just receives a light signal from a set of LEDs over a fiber optic cable. I'm no expert on fiber optics, but as far as I know, you would be using fiber optic LEDs connected to the output of the CPU. They would convert the CPU signal into a light signal, then send over fiber optic cable to BAP1739. You can built something like this yourself of course if you buy the fiber optic LEDs and phototransistors Then the phototransistors will pull an active low gate drive down
the 555 dont have a dead time, so you could explode the igbt if one is still turning off and other one turning on, leading to a short circuit, an explosion
First thank you but i have problem when connected same type of igbt you use how i controlling power circuit 400v by use 555timer low voltage control where you have G: CONNECTED TO CONTROL SIGNAL AND E: CONNECTED TO >>> You have tow E one for power control second one to control circuit i would like explain this point
Seven years on, and this video is still helping people (like Me). A practical example, alongside an explained schematic is amazingly helpful for folk new to transistor theory. Thanks dude. Edit; for a 120V, 500A load (a large DC forklift motor) using two IGBT bricks in parallel, is there anything to consider beyond the parameters explained in the video, in regards to using that driver IC?
@@subcooledheatpump thanks for your reply! your will to help others is really nice, and your tailored response videos are super generous. The IXDN630 d.sheet notes it has a peak source to sink drive current of 30 Amps. Is that referring to the intended current flowing through the IGBT brick? (in my case, 500 amps)
No, the gate drive current and collector current are separate. You can use HCPL-3120 to drive an IGBT(s) with 500 Amps flowing through it. It's just that you may not want to. an IGBT with a higher current rating will have more gate capacitance, which means in order to turn the IGBT on fast enough, you'll need more gate drive current. HCPL-3120 is really only designed to drive IGBTs with ratings of 1200 volts and 100 amps. So if you're looking to drive multiple high current IGBTs you may want something that can provide more gate drive current
@@subcooledheatpump That's brilliant advice, thanks ever so much. It makes a lot of sense, now someone has put it like that. Do you have any suggestions for a set-up like mine? The DC controller schematic i'm looking at has a DCDC converter capable of outputting -5V to +15V (MGJ2D051505SC) feeding an Opto (acnw3190-000e). Would you use a modular approach like that, in favour of an all-in-one package?
Personally I would, But that's just my preference. All in one approaches do work but to me I'd like to be able to replace the individual parts as they fail, and not need to replace things that aren't broken.
Hi, Instead using "Big" Capacitor tank, can we use Other 2 IGBT that form "Full Bridge" kind of Structure ? Bytheway I'm Working on Electronics Ballast Project for UV lamp ( Capacity up to 20,000 W )
this (HCPL-3120) can use in 3-phase inverter? (Adjust frequency 0 to 100 Hz) which one bestter in 3-phase inverter (HCPL-2120 TLP250 IR2133 or else) thank you.
HCPL-3120 can be used in a 3 phase inverter, however if the bus voltage exceeds about 400 volts, then you will likely want to use HCNW-3120 for the high side IGBT gates. This is because HCNW-3120 has a higher isolation voltage rating. Thanks for watching
Hello. Im an electrical engg 3rd year student. This semester Im designing a buck boost converter. Had no idea how to i was going to build this gate driver circuit. The buck boost converter Im designing only has one IGBT. Will it give output exactly the same as in the simulation? Or shud i use 2 IGBTs in the hardware model? Shall be looking forward to your reply.. thanks fr such a great video..
I have one question wants to ask. Can MOSFET also applying -5V to 15V switching techniques as you mentioned in (3.54 minutes). To improve the Full bridge switching performances? I'm looking to hearing from your reply. Thank you to contribute this tutorial.
Yes you can use Negative gate drive, or negative gate bias to hold a MOSFET in the off state. This doesn't necessarily improve switching but it does ensure that the MOSFET won't be accidentally triggered on by noise or interference. Thank you for watching
Nice,but the last part is a bit fuzzy, (and noisy,)an't quite see what goes where Why the pol.cap btw. pins 5 -8? Also,no resistor btw Gate and Emitter? thanks, you are a great teacher.
If your gate drivers are optically isolated then I don't see the need, but some aren't. You can use a phototransistor and LED for simple optical coupling There are fiber optic compatible phototransistors and LEDs available at digikey. Personally I think it would be a good idea, because then you can physically separate the CPU and the gate drivers. Good for reducing noise and interference
For some reason, it is stated in the poopsheet I have on the HCPL-3120 (figure 26/p.17) that the power supplies are connected minus-to-minus!? Link to the particular poopsheet in question: dl.dropboxusercontent.com/u/11778919/HCPL3120.pdf What am I missing out here???
noilex AHA! Found the flaw! In the poopsheet from Avago Technologies [AV02-0161EN] they have the same config os you do (fig. 26/p. 19), which to me seems the most plausible solution. No wonder n00bs like me get left behind:( not cool! Anyway, thanks for the explanation on the subject m8;)
I have a question about the isolated power supply for gate driver. Usually the gate drive doesn't need so much power, so which kind of isolated power supply should I choose in order to put them on PCB? (It seems that if I build a full bridge, I'll need about four power supply)
That really depends on so many variables. What Bus voltage will your inverter be running? How much space on the PCB are you willing to dedicate to the power supplies? This certainly isn't the only method, but I've seen numerous variable frequency drives use a transformer with a single primary driven by a single transistor and multiple secondaries to provide gate drive power. Alternatively, you could use individual DC-DC converters. You only need one for the lower (negative) side IGBTs. The high sides must be isolated from each other, so you could do with only three if you are using a full bridge circuit
@@subcooledheatpump Thanks for your reply! Actually, I'm working on the three phases full bridge inverter.(driving a pretty imbalance load)The required power isn't too much, about 80W(under 48V) per phase. I would like to put the driver circuit and power MOSFET on a 10*10 cm PCB. Since the DC/DC converter really cost me a lot of space, I wonder if there is a better way to implement the circuit?
Actually isolated driver is in my experience not that common unless i'ts actually needed for like high side switching. Clare 414 is a typical IGBT/FET driver. I've used a Fairchild FAN3122T because it has an internal pull down resistor so I can skip that part on the board. Has to be the T version, the 'C' cmos version is a useless mystery to me because it needs half the supply voltage to trigger (which for IGBT is typically 15V) which makes no sense. The TTL version works with 3 and 5V logic.
Is it possible to step up voltage using ( mosfet / igbt) and at the same time step up current for example step up 10 volt to 12 volt and output current 600 amp
You can use either MOSFET or IGBT to create a boost converter to boost up the voltage, or a buck converter to reduce the voltage. Power stays the same, minus some switching losses. So the output current will depend on the ability of the power source
Can you recommend an already made PWM that will fire the HCPL-3120 optocoupler at the right voltage? I am using the TL494 KA7500 Driver Board but it will not fire the led's in the optocoupler.. It seems to only put out .65 volts AC at the signal when connected and around .88 volts AC when it is not connected to the board.. I need the input of the PWM to be 12v. I am building a full bridge inverter.
A TL494 Should have no problems driving the LEDs. I'm not sure I completely understand...what is your input voltage to the TL494? It should be at least 5 volts.
12 volts is the input voltage. The TL494 has a Feed + and a Feed -. It is my understanding that if I put a potentometer on those feet, that I can adjust the voltage output of the board. But, when I use a potentometer, it does not increase the voltage output of the signal. When I ground the Feed - it does not increase the voltage output of the signal. When I use a AC probe across the PWM 1 and PWM 2, it shows a .6 volts. When I use a DC probe across the PWM 1 and PWM 2, it shows as 2.5 volts.
UPDATE .....It will now fire the led, but, the isolated voltage supply (15v) will only put out 5 volts signal to the IGBT. This will not fire my 15v gate of the IGBT. Would that indicate that I need a higher voltage at the LED to trigger the opto? Or is the opto a only ON or only OFF.
You really need a good gate driver like HCPL-3120 to drive the IGBT gate properly. Also PWM should be done with a better setup than a 555. For example, a triangle wave generator and a comparator will give much better results. I just show the 555 here to demonstrate that the gate driver will work with a 0 to 5 volts input, which is basically what a 555 outputs.
Wow. This is very cool! I wonder if you could design a schematic for me since I'm deaf? I'm going building a higher voltage in future. You're good teach btw.
Hi All, i am confuse about pin No.5 (VEE) if any 1 understand please explain to me, IGBT Source PIN Connected to HV(High Voltage) Positive Terminal and IGBT Drain pin connected to Load Positive Terminal....as per video if i direct connect VEE pin to IGBT Drain Pin its NOT working Properly my IGBT Driver IC Heat Too much
The Gate driver VEE needs to connect to the gate drive power supply negative, and to the IGBT emitter. (Source). Both of those should be connected to the DC bus negative. The bottom IGBT is driven, not the top, it only functions as a diode. The IGBT Collector (Drain) should be connected to the load negative. The load positive connects to the DC bus positive, and the upper IGBT is connected in parallel with the load.
Hi, I 'm using a irf4bc40u IGBT used in the high side , which allows the passage of a current from the discharge of a capacitor on a inductor , which controls the gate of the IGBT receive pulses of 15V for 400 microseconds every 50 milliseconds , the problem is that the IGBT heated too fast , you think with this you can solve that problem explain , greetings and thanks in advance .
+Moises Perez IRF? Thats a mosfet. Did you mean IRG? How many amps was your load? The amp rating on the spec sheet assumes you are providing sufficient cooling.
Dear sir What is the value of IGBT using switching circuit , to ON for Vge=4v~5v and its output is Vce=250v &above and Ic=Ie=3A &Above and its switching time below 10ms. Thank you.
Glad you enjoyed it, and I'm happy to help. Thanks for watching
thanks I got a lot from this video. if I can only retain it now. I guess I'll be watching it a few more times. great way of laying everything out. thanks
Excellent explanation with a ton of detail! Awesome tutorial video man.
Great vid and nice easy to understand explanation. Thanks for posting. :)
Thank you! I asked something on another video there, but I just stumbled upon this one..! Very nice.! :)
The capacitor recommended in the HCPL-3120 datasheet is the one I used. The resistor for the gate driver really depends on the IGBT in question. For the 555 timer, that also depends on the IGBT in question. Obviously smaller IGBTs can use a higher switching frequency, and larger ones will need a lower switching frequency. If you can be more specific about your project, I'd be glad to help
I believe the shout has brought me many more subscribers! Will you show an IGBT working on your channel soon? Thanks for watching and for giving me the shoutout
very educational program,
A great tutorial. I knew nothing about IGBTs. Building electric car later this year and this video will help me a great deal. Many thanks.
Hello! We are Emin and Gamze. We are curious about what is your occupation right now?
I am a retired Research and Developement Electronics Engineer my good friends. All being well I shall be uploading videos again from next month (September). Have a great day.
@@MYNICEEVthank you so much sir. I will be an engineer next year. could i ask you some questions about this from mail or something.
This is great! Explained quite nicely. So, for a DC to single phase AC converter, you’d need 4 or two of these? (Sorry if you already mentioned it, didn’t have time to watch the whole video)
thanks for the video mate, it's a great explanation of what i've been trying to acheive with MOSFETS. i also found a lot about GATE voltage :-)
i just seen and heard ant talk about you in his videos on ants channel high1voltage1rules and hes awesome!!
you have some good videos too!
subscribed
thank you
Hello man, I'm from Brazil, nice job you do. Could you make some video teaching about Desaturation as a protection system from IGBT? Thanks a lot.
Wow this video is great and has greatly increased my knowledge on igbt gate drivers and i am definitely going to try this stuff with my 555 :) i had no idea you could build a induction heater with the 555 :) SUBSCRIBED:)
Hey bud' hope ya well. Still playing with igbts lol and loving them. All thanks to you 👍😉
Don't know if you seen the massive amount of igbts from the scrapyard some time ago, and I think iv enough lol to last a life time. 😉
Well my friend I hope you are good and well.
And still getting them subs! 😊
Be safe,
Anthony
High1voltage1rules
This video is so cool mate, iv watched a couple of times now, and its teaching me a lot about the igbt. Thank you again my friend. ;-)
P.s hope the shout for you has increased you subscribers ;-)
All the best and keep up the fantastic videos
Anthony.
Great video!.
What is the frequency of your inductive heater?
I cannot thank you enough my friend ;-)
That was so kind of you to go out your way like that and make this video ;)
I will give it a go soon" and go back to this video for support and see how I get on lol ;-)
The next time I make a video, im going to thankyou and get more subscribers your way because your channel is awesome and you deserve more ;-) There's not many peaple like you that's willing to help...;)
Many thanx for sharing your video ;-)
Thanx again.
BIG THUMBS UP*
Although I wouldn't recommend using an audio signal for driving IGBTs at high power, I can tell you that it does work. I've used IGBTs and the HCPL-3120 with an audio signal to modulate a small lamp with music. The induction heaters I show on my channel usually use the audio output from a PC as well, although the PC would be generating a sine or square wave and obviously not playing music. Thanks for watching
Excellent video man... Thanks.
iv added your channel to my channel, channel's play list!!
many thanx
anthony
Hi, Thanks a lot for the great video, but can you please tell me how can I use MSP430 g2553 to switch a half bridge inverter?
I admire your understanding of electronics and wish I had it myself! Mechanical things have always came natural to me, but electronics is still a hard work in progress! Did you go to school for this?
Hi, great video. I got the HCPL 3120 and an IGBT FS20R06VE3_B2. I am trying to drive an old pancake motor on a washing machine. Its a form of Brushless DC motor. I been searching and searching but ur video is the closest to what Im looking for as everyone else seems to just power up tiny low powered motors. Most IGBT circuits drive inverters that drive ac 3 phase motors. Any help is appreciated as to how your circuit can drive my motor.
Thank you for every thing, I work on photovoltaic flyback inverter consists of center tap transformer, two diodes and two IGBTs to feds a ac current tot the grid I hope to learn me about how can be connection the terminal IGBTs to the transformer and gate drive terminal
HCPL-3120 is suggested for use with IGBTs up to 1200v/100a or 600v/200a. You can use the output of HCPL-3120 as a signal input for a larger gate driver, such as IXDN630CI for driving larger IGBTs. In this way, the HCPL-3120 merely acts as an optoisolator. You can use HCPL-3120 with larger IGBTs, if you make a sacrifice in switching speed. By selecting a gate resistor with a higher value, you can use HCPL-3120 for the larger IGBTs, although switching will be slower. Thanks for watching
very very well explained.... thanks a lot...:)
I don't know too much about SCRs, but it depends on what you will be using the SCR for.
SCRs are current controlled, and they take very little current to trigger compared to an IGBT. You can use a pulse transformer to trigger a SCR into conduction. I'd say that might just be the best way if you are using them to rectify AC
Hi, I have learned MUCH from your great videos.
Concerning the gate driver, I need one that I can operate at Vcc=12v, since my application is automotive. Do you know how I can drive a 1000v high voltage IGBT with a driver that does not need more than 12v?
THANKS MUCH!!!
You can still use pulse transformers for an inverter, but the outputs of the transformers must be reversed for each SCR. So for example, one SCR is off while the other is on for each phase.
I note, the 3120 data sheet says : "The voltage and current supplied by this optocoupler makes it ideally suited for directly driving IGBTs with ratings up to 800V/50A. For IGBTs with higher ratings, the VO3120 can be used to drive a discrete power stage which drives the IGBT gate." We are using a MG4001J rated 600V/400A. Will it be necessary to add an additional power stage??How?? Thank you very much. Your video is excellent
Yes you can absolutely use a full bridge IGBT inverter. Just use 4 gate drivers instead of two. You will still need some capacitance but not nearly as much. Thanks for watching
what is the maximum IGBT gate capacitance for the HPCL3120? can i drive a 600A igbt module with it or i need greater current? Thank you
If you are making a gate driver with protection what might concern you is the speed in which it reacts to an overcurrent. Avoid turning off the IGBT too quickly in a short circuit, that could lead to a very high turn off voltage. Induced noise into the protection circuit can be a problem so make sure you have a good layout. Make sure that you will be able to supply the peak gate drive current and that your gate driver will turn off if the gate supply voltage falls too low.
i notice in this video that you are switching your HCPL-3120 optocoupler with only 2 volts. The datasheet shows that the Max Input Forward voltage current is 1.8 volts. What was your formula for choosing your LED resister? My TL494 KA7500 Driver Board seems to be putting out around 10 volts at the signal. (Now that I hooked it up right!) I am guessing that my resistor would be around 820 ohms at the input of each LED. Can you talk more on choosing your LED resistors and your gate resistors?
really good ! how is the igbt response if you would feed them an audio signal ?
Hello friend fastly I did use this gate driver on my mosfet power inverter and the gate didn’t turn fully causing a small short circuit blowing the mosfet and I had to use a 700ohms resistor to turn the gate of because I was using 18 voltage at the gate
Tnx for the video can I measure voltage of that output pin of opto coupler with multimeter
want to chop AC voltage using IGBT...basically using generic buck converter circuit.
Can a bridge rectifier across IGBT be helpful so that IGBT always sees a voltage drop across its drain and source and AC voltage can be easily switched?
I think I blew up my cheapo IGBT trying to use it for a supercapacitor spotwelder .-. ....... so time to stock up on information :3
Good video sir, I have designed and assembled similar circuit to drive a full bridge igbt. The circuit works fine below a bus voltage of 70 volts but above 70 v my one side igbts blown out several time. Can u please share what's the problem.
Hey, i have a question, so after few of IGBT, i dont have a real answer of that
I'm just asking if the SKM145GB123D can switch at 120~ Khz, and what's the maximum frequency ? thx! (i'm noo for the datasheet check)
I gotta score a handheld digital scope one of these days.
I just have a 20Mhz desktop scope.
Hi,In a MOSFET application in high side configuration, what are the pros and cons to using a charge pump to drive the gate? Is it better to use the HCPL3120?
can i use it to drive 30n604ad igbt for my LC resonant smps ? about anti pararel diode is it really need?
Can I use this circuit to drive two SCR back to back for single phase AC voltage regulator?
Great
Thank you very very much =)
Интересное видео, спасибо. А полную схему с двухполярным питанием можно у вас попросить?
woww..It is too good brother.:).thank you so much.:)
nice explanation man , so basically need of a igbt or mosfet driver is to switch them on and off as fast as possible properly at high frequencies . so that igbt's output current will be function of signal at the gate . isn't it right ??
Hi
I need some help An a IGbT I have a q41 quickroton motor it has an igbt in it need to use a driver to run the IGBT speed controller it's a sewing machine servo motor .thank you
hey thanks for ur video i am looking to make gate driver circuit with all protection, so before i made it what things do i need take in my consideration
could you kindly give the best driver ic and suitable IGBT for controlling the AC induction motor?
seeking your valuable response as soon as posssible.
wow im gonna have to find some of those isolating gate drivers :-) im just using TC4424 at the moment:-)
Good video.
The BAP1793 just receives a light signal from a set of LEDs over a fiber optic cable.
I'm no expert on fiber optics, but as far as I know, you would be using fiber optic LEDs connected to the output of the CPU. They would convert the CPU signal into a light signal, then send over fiber optic cable to BAP1739. You can built something like this yourself of course if you buy the fiber optic LEDs and phototransistors Then the phototransistors will pull an active low gate drive down
How can ı connect IR2110 and IXSH25N120A IGBT in terms of pin connection for buck converter switch?
the 555 dont have a dead time, so you could explode the igbt if one is still turning off and other one turning on, leading to a short circuit, an explosion
am suppling 15 v in vcc ,but output am getting in 13.2V for 3120 optodriver.any reason?
Is there any CI for a nonisolated gate driver? or if I want to use a discrete component, what component should I use?
Thank You
please tell me about "Resonant power inverter controller"
Does 50 amper igbt gate drive can be used for 100 amper
hi friend , how many Volts? and Amps? you put in the pin 3 in HCPL3120 ? i ask if you was measure this values . thanks . good job!
hello far away friend. been some time since we spoke. hope your well and your doing well in life.
regards,
Anthony.😉👍
Why ate wires to the IGBTS on every gate I have seen are twisted?
hello there, what resistance did you use for the 3120 led? thanks.
I want to make induction machine to temper the iron. Could you help me with all schematic. Thank u
First thank you but i have problem when connected same type of igbt you use how i controlling power circuit 400v by use 555timer low voltage control where you have G: CONNECTED TO CONTROL SIGNAL AND E: CONNECTED TO >>> You have tow E one for power control second one to control circuit i would like explain this point
Awesome ;) Thumbs up :D
Alex
Thanks
Seven years on, and this video is still helping people (like Me). A practical example, alongside an explained schematic is amazingly helpful for folk new to transistor theory. Thanks dude.
Edit; for a 120V, 500A load (a large DC forklift motor) using two IGBT bricks in parallel, is there anything to consider beyond the parameters explained in the video, in regards to using that driver IC?
both IGBTs should be on the same heatsink, and as close as possible. You might consider using a larger gate driver, such as IXDN630
@@subcooledheatpump thanks for your reply! your will to help others is really nice, and your tailored response videos are super generous.
The IXDN630 d.sheet notes it has a peak source to sink drive current of 30 Amps. Is that referring to the intended current flowing through the IGBT brick? (in my case, 500 amps)
No, the gate drive current and collector current are separate. You can use HCPL-3120 to drive an IGBT(s) with 500 Amps flowing through it. It's just that you may not want to. an IGBT with a higher current rating will have more gate capacitance, which means in order to turn the IGBT on fast enough, you'll need more gate drive current. HCPL-3120 is really only designed to drive IGBTs with ratings of 1200 volts and 100 amps. So if you're looking to drive multiple high current IGBTs you may want something that can provide more gate drive current
@@subcooledheatpump That's brilliant advice, thanks ever so much. It makes a lot of sense, now someone has put it like that. Do you have any suggestions for a set-up like mine? The DC controller schematic i'm looking at has a DCDC converter capable of outputting -5V to +15V (MGJ2D051505SC) feeding an Opto (acnw3190-000e). Would you use a modular approach like that, in favour of an all-in-one package?
Personally I would, But that's just my preference. All in one approaches do work but to me I'd like to be able to replace the individual parts as they fail, and not need to replace things that aren't broken.
Hi, Instead using "Big" Capacitor tank, can we use Other 2 IGBT that form "Full Bridge" kind of Structure ?
Bytheway I'm Working on Electronics Ballast Project for UV lamp ( Capacity up to 20,000 W )
this (HCPL-3120) can use in 3-phase inverter? (Adjust frequency 0 to 100 Hz)
which one bestter in 3-phase inverter (HCPL-2120 TLP250 IR2133 or else)
thank you.
HCPL-3120 can be used in a 3 phase inverter, however if the bus voltage exceeds about 400 volts, then you will likely want to use HCNW-3120 for the high side IGBT gates. This is because HCNW-3120 has a higher isolation voltage rating. Thanks for watching
Hello. Im an electrical engg 3rd year student. This semester Im designing a buck boost converter. Had no idea how to i was going to build this gate driver circuit. The buck boost converter Im designing only has one IGBT. Will it give output exactly the same as in the simulation? Or shud i use 2 IGBTs in the hardware model? Shall be looking forward to your reply.. thanks fr such a great video..
u need only 1 switch man..for simplicity u can use hcpl316j gate driver for that.2 igbt is the case for synchronous converter.
I have one question wants to ask. Can MOSFET also applying -5V to 15V switching techniques as you mentioned in (3.54 minutes). To improve the Full bridge switching performances? I'm looking to hearing from your reply. Thank you to contribute this tutorial.
Yes you can use Negative gate drive, or negative gate bias to hold a
MOSFET in the off state. This doesn't necessarily improve switching but
it does ensure that the MOSFET won't be accidentally triggered on by
noise or interference. Thank you for watching
Thanks for your explanation
John nji
Nice,but the last part is a bit fuzzy, (and noisy,)an't quite see what goes where
Why the pol.cap btw. pins 5 -8?
Also,no resistor btw Gate and Emitter? thanks, you are a great teacher.
Can igbt varrry voltage according to gate voltage
Please advise the gate resistors parameters
Give us the parts list so we can buy the components and build the circuit
If your gate drivers are optically isolated then I don't see the need, but some aren't. You can use a phototransistor and LED for simple optical coupling
There are fiber optic compatible phototransistors and LEDs available at digikey. Personally I think it would be a good idea, because then you can physically separate the CPU and the gate drivers. Good for reducing noise and interference
For some reason, it is stated in the poopsheet I have on the HCPL-3120 (figure 26/p.17) that the power supplies are connected minus-to-minus!?
Link to the particular poopsheet in question:
dl.dropboxusercontent.com/u/11778919/HCPL3120.pdf
What am I missing out here???
b.t.w. this holds true for the datasheets 5965-4779E and 5965-7875E both.
noilex
AHA! Found the flaw! In the poopsheet from Avago Technologies [AV02-0161EN] they have the same config os you do (fig. 26/p. 19), which to me seems the most plausible solution.
No wonder n00bs like me get left behind:( not cool!
Anyway, thanks for the explanation on the subject m8;)
nice
I have a question about the isolated power supply for gate driver. Usually the gate drive doesn't need so much power, so which kind of isolated power supply should I choose in order to put them on PCB? (It seems that if I build a full bridge, I'll need about four power supply)
That really depends on so many variables. What Bus voltage will your inverter be running? How much space on the PCB are you willing to dedicate to the power supplies? This certainly isn't the only method, but I've seen numerous variable frequency drives use a transformer with a single primary driven by a single transistor and multiple secondaries to provide gate drive power. Alternatively, you could use individual DC-DC converters. You only need one for the lower (negative) side IGBTs. The high sides must be isolated from each other, so you could do with only three if you are using a full bridge circuit
@@subcooledheatpump Thanks for your reply! Actually, I'm working on the three phases full bridge inverter.(driving a pretty imbalance load)The required power isn't too much, about 80W(under 48V) per phase. I would like to put the driver circuit and power MOSFET on a 10*10 cm PCB. Since the DC/DC converter really cost me a lot of space, I wonder if there is a better way to implement the circuit?
hello sir
I saw this video. it's very important for me. but I can't understand.
can you make an easy diagram
You must repeat this video with better sound quality and better video quality, good job
What about making a IGBT audio amp 😅
Actually isolated driver is in my experience not that common unless i'ts actually needed for like high side switching.
Clare 414 is a typical IGBT/FET driver. I've used a Fairchild FAN3122T because it has an internal pull down resistor so I can skip that part on the board. Has to be the T version, the 'C' cmos version is a useless mystery to me because it needs half the supply voltage to trigger (which for IGBT is typically 15V) which makes no sense. The TTL version works with 3 and 5V logic.
Is it possible to step up voltage using ( mosfet / igbt) and at the same time step up current for example step up 10 volt to 12 volt and output current 600 amp
You can use either MOSFET or IGBT to create a boost converter to boost up the voltage, or a buck converter to reduce the voltage. Power stays the same, minus some switching losses. So the output current will depend on the ability of the power source
Can you recommend an already made PWM that will fire the HCPL-3120 optocoupler at the right voltage? I am using the TL494 KA7500 Driver Board but it will not fire the led's in the optocoupler.. It seems to only put out .65 volts AC at the signal when connected and around .88 volts AC when it is not connected to the board.. I need the input of the PWM to be 12v. I am building a full bridge inverter.
A TL494 Should have no problems driving the LEDs. I'm not sure I completely understand...what is your input voltage to the TL494? It should be at least 5 volts.
12 volts is the input voltage. The TL494 has a Feed + and a Feed -. It is my understanding that if I put a potentometer on those feet, that I can adjust the voltage output of the board. But, when I use a potentometer, it does not increase the voltage output of the signal. When I ground the Feed - it does not increase the voltage output of the signal. When I use a AC probe across the PWM 1 and PWM 2, it shows a .6 volts. When I use a DC probe across the PWM 1 and PWM 2, it shows as 2.5 volts.
UPDATE .....It will now fire the led, but, the isolated voltage supply (15v) will only put out 5 volts signal to the IGBT. This will not fire my 15v gate of the IGBT. Would that indicate that I need a higher voltage at the LED to trigger the opto? Or is the opto a only ON or only OFF.
Hi guy, I am building buck/boost converter with NGTB50N60 IGBT. The last circuit driver with two 555, is it the best to drive the gate of IGBT ?
You really need a good gate driver like HCPL-3120 to drive the IGBT gate properly. Also PWM should be done with a better setup than a 555. For example, a triangle wave generator and a comparator will give much better results. I just show the 555 here to demonstrate that the gate driver will work with a 0 to 5 volts input, which is basically what a 555 outputs.
Pode me enviar o circuito deste vídeo?
Can I use this gate driver IC when I'm using Full bridge IGBT as controlled rectifier
+Basil aljamal As long as the power supply for the gate drivers is properly isolated, it shouldn't be a problem
Wow. This is very cool! I wonder if you could design a schematic for me since I'm deaf? I'm going building a higher voltage in future. You're good teach btw.
Hi All, i am confuse about pin No.5 (VEE) if any 1 understand please explain to me, IGBT Source PIN Connected to HV(High Voltage) Positive Terminal and IGBT Drain pin connected to Load Positive Terminal....as per video if i direct connect VEE pin to IGBT Drain Pin its NOT working Properly my IGBT Driver IC Heat Too much
The Gate driver VEE needs to connect to the gate drive power supply negative, and to the IGBT emitter. (Source). Both of those should be connected to the DC bus negative. The bottom IGBT is driven, not the top, it only functions as a diode. The IGBT Collector (Drain) should be connected to the load negative. The load positive connects to the DC bus positive, and the upper IGBT is connected in parallel with the load.
How important is that 0.1 microFarad capacitor, the smallest I have on me is 1.0
You could probably get by with the 1.0 just fine for most applications
Hey mate. Just found your channel, awesome. Theres some crazy X-ray transformer chaos on my channel, IGBT half bridge etc.
Steve
Hi, I 'm using a irf4bc40u IGBT used in the high side , which allows the passage of a current from the discharge of a capacitor on a inductor , which controls the gate of the IGBT receive pulses of 15V for 400 microseconds every 50 milliseconds , the problem is that the IGBT heated too fast , you think with this you can solve that problem explain , greetings and thanks in advance .
+Moises Perez IRF? Thats a mosfet. Did you mean IRG? How many amps was your load? The amp rating on the spec sheet assumes you are providing sufficient cooling.
Dear sir
What is the value of IGBT using switching circuit , to ON for Vge=4v~5v and its output is Vce=250v &above and Ic=Ie=3A &Above and its switching time below 10ms.
Thank you.