Besides the verly clear explaination, the synchronized drawing is extremly satisfying and aiding my understanding! I usually watch videos on 3x speed and this video turned out to fill every second with useful information.
i was just building a solid state tesla coil, and having some problems with my igbt since i have never used before, you uploaded this video just at the right time thank you.
I always enjoy and bookmark your electronic basics because whenever im building a project its always worth to rewatch the video to be sure what i'm doing. Thank you a lot.
Some words about the losses: The MOSFET has a channel resistance, so the power loss is the switch on resistance times current squared, so R_DSon * I². The IGBT power loss is calculated by voltage drop times current, so U_CE * I. So, the IGBT can handle bigger currents on same chip volume. What I want to say: calculating the loss is in the nature of the chip structure, where channel resistance and PN-junction behaves different in its nature. Only to complete ;-). Great video and really close to the practical side of engineering.
This particular subject is so over my head but I think I get the concept. This looks like a really cool project. I am beyond a noob with electronics but I want to start making time to learn in the 2nd half of the year. So I have been watching your videos and learning. I will probably go back and review your "Basics" videos and copy some of the things you did in them to get practical experience. Thank you for making these videos.
This guy made it so complicated. I made a Tesla coil with one mechanical relay and large capacitor. And if you want to speed or slow down the spark. I use a dial switch with different small capacitors at each turn
opto isolator is just two led to transmit logic signal,this component is only used to change the logic value of a part of circuit while not involve the logic state of the other parts.
Hi, I thought the following might help save some breadboard wear: At timestamp 1:55 if you twist the three pins of this and similar components by 90 degrees with a pair of needle-nosed pliers, it gives a much better breadboard fit.
Thank you for the short and down to earth video explaining the differences, I've had a circuit in my mind that MOSFETs can't handle and having never used an IGBT started on this quest to learn more. Seems that it is very easy to use as it can be used just like a MOSFET and handles more current and higher voltage.
1-> MOSFET faster than IGBT 2-> IGBT uses for HIGH voltage applications 3-> MOSFET Conductive losses => Pmosfet = Rds(on) * Id^2 IGBT Conductive losses ==> Pigbt = Vce*Ic 4-> Switching losses are similar. IF Pigbt > Pmosfet, choose MOSFET. Otherwise chose IGBT. (for same voltage and current value)
SIlicone Carbide (SiC) MOSFETS have similar characteristics as the IGBT about voltage and current capability but with the benefits of lower Rds ON and lower rise and fall times even compared with traditional mosfets but they are not cheap. For tesla coil application I think they are the best option :)
Hey greatscott. Great video, I was just wondering, at 6:00 you say that the igbt has a higher on resistance, but it can handle higher current compared to a mosfet. How is this if the laws of power dissipation are uniform? Can the igbt handle a much higher temperature? Or does it dissipate the heat better? Thank you. Graham
IGBT's do have a Vf present on their output due to the PNP output device integrated within IT. Therefore, they are less suited for low voltage high/very high current applications where the MOSFET, which acts more like a very-low value resistor in their ON state are more suited. However, when voltage rises, the IGBT truly finds its place. At Digikey, it is easy to find kilovolt rated TO-247 devices with Ic above 100 amperes. Why are they so rugged ? This is beyond my competence... But be aware: IGBT's are significantly slower than MOSFET's, so forget them in RF amplifiers or in switchmode high power sonorisation amplifiers, however, they are perfectly suited for high-power applications such as induction heating, arc / TIG / MIG welders, DC-DC converters, VFD / motor drives and traction applications.
Wow, am I wrong or I just saw slight mistake at the very end? BJT inside IGBT has it's emitter (BJT arrow = emitter) labeled C. It's not BJT collector. This emitter is considered collector when watching from IGBT point of view since whole structure acts like voltage driven NPN. It sometimes utilizes NPN symbol with insulated "base" labeled G of course. But it's actually slightly more complicated than simple mosfet + pnp. There're NPNP layers so it means there is embedded parasitic thyristor. That also means in equivalent circuit there's N-channel MOSFET, PNP and NPN.
oye, posiblemente te toque traducir este fragmento. vi que quizás era inútil, opinar esto en mi idioma, pero tu video, y la forma en que lo hiciste con eso del lápiz y etc, fue bastante bueno, a pesar de no entenderlo y tener que leerte, los gráficos hablaron por si solos, gran video...…..
no i think that a video about it can be useful for a lot of people. for example i know the theory but i'm not able to build a automatic pfc. Ps. i love your video, greeting from italy
Thanks for the great tutorials. I learned a lot through your electronics basics videos. Can you do one on high-power circuits and how to minimize losses/maximize efficiency in them?
Thanks for all your videos. Can you make a review of the new MOSFETs based on silicon carbide (SiC) or gallium nitrade (GaN)?. They can reach more voltage and current than traditional MOSFETs, keeping high frequency (low switching loss) and have low gate charge.
So hilarious I broke a FQB50N06L in my inverter, just the video I needed. Ordering some soon. Was tempted to try a FQB30N06 to try out, that I had on hand. Since it does 32amps instead of 60amps, more then enough for lower then my 100watt usage till I get the proper one.
These are actually used in Variable Frequency Drives for industrial motor controls, in case you wanted to know. That would be a nice project, to create a diy VFD, no?
fine job with your presentation. its clear that you put in a lot of effort . and i am pleased to support you one thing i was watching for was a flyback app'n and if this device has a Coss parasitic output capacitance like a power n-FET. you know how that plus the 'transformer' leakage inductance forms a series resonant circuit. that , when the FET turns off causes a very high (500V and up ) overvoltage that can damage the FET .
Isn't the common reason why MOSFETs are prefered in SMPS' rather than IGBTs the rise/fall time? I could see an overall higher switching transition overlap on the IGBT than on the MOSFET. Meaning high switching losses, right? Therefore a rapid decrease in efficiency. So when are IGBTs used in professional applications?
Yeah, I didn't miss that part :) Though I haven't seen many switch mode power supplies that fit the "high voltage/high current with medium frequency" description, making use of an IGBT. Is that due to high switching losses and the bigger Miller plateau? You might know?
It seems to me that one BIG factor on driving MOSFETs is the high Gate-to-Source capacitance. e.g. When the Drain is grounded and you switch a high voltage (open collector style) load, it reflects back thru the Gate so your driver has to be able to handle this transient. I wonder if this issue does not exist in the IGBT.
From my experience...IGBT => It Goes Bang Too... IGBT's are powerful switches but even thought they are very sensitive to gate overvoltage, fast voltage rise (Miller effect - which could cause transistor to open) and driving them also takes much energy... Using them for tesla coil is only possible with good driver, delay timing control and low resonance frequency... For driving tesla coil I recommend using SiC MOSFETs which turn on/off times are about 20ns usually.
When talking about the times, at 4:55 and before, neither times for the MOSFET or IGBT fit within the datasheet specs. IGBT: 145ns, 240 ns // MOSFET: 32ns, 160ns. Why do you say that they fit within the specs of the datasheet and sum all the times at 5:01 ?
i love your videos. i wish i can be as good as you are in electronics. haha i don't know what half of the things you say are! but i still watch your videos because they are interesting
I used to hate his videos because I didn't understand the majority of them, but I have been studying and learning and now I've gotten to where I understand the majority of them.. just take steps and you will get there
Hola...!! Excelentes vídeo..!! muy bien explicados..!! Seria bueno que hagas un vídeo explicando las principales diferencias con los nuevos "CREE MOSFET" y los IGBT..!! SALUDOS From ARGENTINA..!!
at 4:40 of your video, i see theres a resistor between the tc4420 and the igbt, is that for current controll as to keep thigbt from createing excess frequencies from what you inputed?
Hi Scott. It's possible to use IGBT for DC switch, for example in solar powered circuits? Relays are impossible to use in solar DC circuits, because of electric arc.
Hi GreatScott!, When designing a H-bridge circuit, why are MOSFETS typically used compared to standard transistors? Could we not use the Darlington pair configuration compared to the MOSFET? Could we use MOSFETS in a Darlington pair configuration?
mosfets are great with the gate run from clean square wave signals but are not happy with a linear drive signal. IGBT is vastly superior in this mode acting like a BJT without the high drive currents. I think you said this.
Hey! Thank you for the video! One observation: on 2:13 I see in PDF 5v being mentioned as a trigger for the switch. But when you show the lamp only turning on at 12 volts on minute 2:15 then I decided to note it here. Can someone help me to understand what was going on?
It only shows the collector/emitter voltage and not the gate/ground voltage, because it's probably a 12V lamp. You can see the gate voltage on the right screen of the power supply.
@greatscott I was wondering if you had any advice I want to replace my motorcycle starter Solenoid to solid state can you recommend any mosfet's that can handle 12.0v-14.4v with bursts of current around 250 amps. I look forward to hearing from you thank you for your time.
The thing I don't understand is that he connected the emitter directly to ground and the lightbulb in-between the collector and the positive. But if you switch the too let's say put the positive on the emitter and the lightbulb in-between ground and collector. It doesn't seem when I tried that.
Thank you for spreading awareness about the IGBT community
No problem ;-)
Lol
HumbleZebra Best comment ever xD
That has to win best comment.
HumbleZebra gates are not binary, they are a spectrum.
As someone who sexually identifies as a bipolar junction transistor, I greatly appreciate your support of the IGBT community.
That was excellent. I just about hit the floor laughing.
comment awards 2019 !!!
@@iwtommo - hello life alert - i had a laugh attack - i have fallen and i can't get up.
hello life alert - i have had a laugh attack - i have fallen and i can't get up.
as a person who identified as Capacitor Leaking Problem,i shall be proud to be part of IGBT community
I am ALWAYS VERY impressed by your Ink drawing skills in ALL of your Videos! Great craftpenship!
Besides the verly clear explaination, the synchronized drawing is extremly satisfying and aiding my understanding!
I usually watch videos on 3x speed and this video turned out to fill every second with useful information.
I had never even heard of an IGBT before. Thanks man. I learned something new today.
I must emit: All Transvestors in the gated community thanks you for commutating awareness! May the collector bless your electrons!
I mainly clicked the video to see LGBT puns in the comments even though I study electronics
Meir cum on guys ..these jokes are not funny
I did
yes, i did the same... punish me daddy
Visit me
even though i don't have a clue what you're on about i still find these electronic basics videos very interesting and informative. keep it up!
For fast(er) switching on IGBT's, use +15 / -5 V (with respect to the Emitter) to switch on and off respectively. This is how it's done in VSD's etc.
i was just building a solid state tesla coil, and having some problems with my igbt since i have never used before, you uploaded this video just at the right time thank you.
Same here.
I always enjoy and bookmark your electronic basics because whenever im building a project its always worth to rewatch the video to be sure what i'm doing.
Thank you a lot.
Best and most thorough explanation on a subject that I have ever seen on the internet, Nice job.
thank you sir, you are a wizard of electrons and a gentleman.
had to rewind some sections three times but you published part numbers thanks again.
You are welcome :-)
Some words about the losses:
The MOSFET has a channel resistance, so the power loss is the switch on resistance times current squared, so R_DSon * I². The IGBT power loss is calculated by voltage drop times current, so U_CE * I. So, the IGBT can handle bigger currents on same chip volume. What I want to say: calculating the loss is in the nature of the chip structure, where channel resistance and PN-junction behaves different in its nature.
Only to complete ;-). Great video and really close to the practical side of engineering.
I see you are never late, keep up the good work
Visit me
This particular subject is so over my head but I think I get the concept. This looks like a really cool project.
I am beyond a noob with electronics but I want to start making time to learn in the 2nd half of the year. So I have been watching your videos and learning. I will probably go back and review your "Basics" videos and copy some of the things you did in them to get practical experience. Thank you for making these videos.
Can I use an LGBT instead?
I don't think so
Pentahydrate best comment ever
Pentahydrate Yes, but you must install it backwards.
Instead of what? ;)
No, they will dehydrate very fast.
I really appreciate these basics videos. Also, your English is better than mine.. lol. Nice work, Scott.
I think a video about High-Side switching and bootstrapping MOSFETs would be really awesome.
That would be really good.
The neat schematics are very satisfying. I spent a lot of time as a kid drawing and re-drawing my schematics to make them look near perfect
This was a great video. I did some research for school about IGBT's and your video summed up about a months worth of time I spent. Great job
This guy made it so complicated. I made a Tesla coil with one mechanical relay and large capacitor. And if you want to speed or slow down the spark. I use a dial switch with different small capacitors at each turn
Your writing is very good, not bad for a left hander like my daughter. Your videos are very too! Thank You.
😍😍This channel is just awesome
Thanks ;-)
GreatScott! you're welcome 😃
You mean N-CHANNEL MOSFET?
@@ervivekchoubey No, no, man, definitely P Channel on this chip. Totally positive channel here. :-)
YES..
Make a vide about optocouplers
That vill be cool.
Yes, please make it.
Yes, that would be great as a lot of people don't usually cover them.
opto isolator is just two led to transmit logic signal,this component is only used to change the logic value of a part of circuit while not involve the logic state of the other parts.
KX36 There's nothing has been called digital component,it's just the components which used to make and maintain some kind of signal.
Waoo. So clear way better than my electric circuit professor.... MORE SIMILAR VIDEOS my friend thanks
Hi,
I thought the following might help save some breadboard wear: At timestamp 1:55 if you twist the three pins of this and similar components by 90 degrees with a pair of needle-nosed pliers, it gives a much better breadboard fit.
Thanks for the tip! I always had trouble with these kinds of mosfet pins of that size.
Seriously professional content, presentation and screenplay...Congratulations!!
you have high level of Electronic knowledge . and you use beautiful pen. thank you
Your handwriting is SO nice
Great video! Using today no longer existent GT20D101/201 Toshiba IGBT for my CFB audio amplifier, works like a charm but has its tricks!
Great Scott, great explanation, and great penmanship!
When people ask me about LGBT, i say oh "lithium gate bipolar transistors..." yeah
😂😂😭😭
Bipolar means 2 big white bears standing side by side
....lithium n bipolar ,,now I see it . The medication costs a lot more these days too .
hi GreatScott! I am Guransh Singh my age is 12 years I am a die heart fan of yours I see your videos and your creations are very nice
Guransh Singh no offense, but do you even get half the stuff he is explaining (you know, with you being 12 and all)
Thank you for letting me know about IR2113, it does useful for helping me to make an AC motor controller, by using H bridge with MOSFET .
Thank you for the short and down to earth video explaining the differences, I've had a circuit in my mind that MOSFETs can't handle and having never used an IGBT started on this quest to learn more. Seems that it is very easy to use as it can be used just like a MOSFET and handles more current and higher voltage.
Thanks for your great explanation. It is very clear and helped me a lot.
dude can you make a video on the opticcopler
i really learn a lot from your channel everytime, thank you!!
This is the best video about IBGT, thanks
1-> MOSFET faster than IGBT
2-> IGBT uses for HIGH voltage applications
3-> MOSFET Conductive losses => Pmosfet = Rds(on) * Id^2
IGBT Conductive losses ==> Pigbt = Vce*Ic
4-> Switching losses are similar.
IF Pigbt > Pmosfet, choose MOSFET. Otherwise chose IGBT. (for same voltage and current value)
SIlicone Carbide (SiC) MOSFETS have similar characteristics as the IGBT about voltage and current capability but with the benefits of lower Rds ON and lower rise and fall times even compared with traditional mosfets but they are not cheap. For tesla coil application I think they are the best option :)
GreatScott for electronics is like Chrisfix for cars .
This was really great, with a good summary. I'm headed to patreon now. Thanks!
Thanks for the support :-)
This nearly went over my head, very cool teaching!
Very good contribution friend, you will have a circuit developed for inverter trifasico with bosostrap, or a circuit boostrap to control igbts
Hey greatscott. Great video, I was just wondering, at 6:00 you say that the igbt has a higher on resistance, but it can handle higher current compared to a mosfet. How is this if the laws of power dissipation are uniform? Can the igbt handle a much higher temperature? Or does it dissipate the heat better?
Thank you.
Graham
IGBT's do have a Vf present on their output due to the PNP output device integrated within IT.
Therefore, they are less suited for low voltage high/very high current applications where the MOSFET, which acts more like a very-low value resistor in their ON state are more suited.
However, when voltage rises, the IGBT truly finds its place. At Digikey, it is easy to find kilovolt rated TO-247 devices with Ic above 100 amperes.
Why are they so rugged ? This is beyond my competence...
But be aware: IGBT's are significantly slower than MOSFET's, so forget them in RF amplifiers or in switchmode high power sonorisation amplifiers, however, they are perfectly suited for high-power applications such as induction heating, arc / TIG / MIG welders, DC-DC converters, VFD / motor drives and traction applications.
Wow, am I wrong or I just saw slight mistake at the very end? BJT inside IGBT has it's emitter (BJT arrow = emitter) labeled C. It's not BJT collector. This emitter is considered collector when watching from IGBT point of view since whole structure acts like voltage driven NPN. It sometimes utilizes NPN symbol with insulated "base" labeled G of course. But it's actually slightly more complicated than simple mosfet + pnp. There're NPNP layers so it means there is embedded parasitic thyristor. That also means in equivalent circuit there's N-channel MOSFET, PNP and NPN.
oye, posiblemente te toque traducir este fragmento. vi que quizás era inútil, opinar esto en mi idioma, pero tu video, y la forma en que lo hiciste con eso del lápiz y etc, fue bastante bueno, a pesar de no entenderlo y tener que leerte, los gráficos hablaron por si solos, gran video...…..
¡El señor habla español! :D
Muchas gracias, Saludos desde Tachira, Venezuela!!!
can you make video about automatic power factor correction
That is a bit too much for a TH-cam video production.
no i think that a video about it can be useful for a lot of people. for example i know the theory but i'm not able to build a automatic pfc. Ps. i love your video, greeting from italy
GreatScott! You can make a separate channel for longer videos. P.S . I love your videos and they have inspired me very much.
EEVBLOG is the youtuber for Power factor correction info
Thanks for the great tutorials. I learned a lot through your electronics basics videos. Can you do one on high-power circuits and how to minimize losses/maximize efficiency in them?
Yes please do have circuit diagram for higher power like 1500w?
Thanks in advance
Thanks for all your videos. Can you make a review of the new MOSFETs based on silicon carbide (SiC) or gallium nitrade (GaN)?. They can reach more voltage and current than traditional MOSFETs, keeping high frequency (low switching loss) and have low gate charge.
nice explanation sir
Thanks
Hi, this is great, simple to understand and straight to the point! How can i access all the tutorials starting from number 1 please? Thanks
06:02 , isn't the upper terminal of the transistor where arrow is indicated should be an emitter(E) and not collector(C)? just asking...
So hilarious I broke a FQB50N06L in my inverter, just the video I needed. Ordering some soon. Was tempted to try a FQB30N06 to try out, that I had on hand. Since it does 32amps instead of 60amps, more then enough for lower then my 100watt usage till I get the proper one.
These are actually used in Variable Frequency Drives for industrial motor controls, in case you wanted to know. That would be a nice project, to create a diy VFD, no?
fine job with your presentation. its clear that you put in a lot of effort .
and i am pleased to support you
one thing i was watching for was a flyback app'n and if this device has a Coss
parasitic output capacitance like a power n-FET. you know how that plus the
'transformer' leakage inductance forms a series resonant circuit. that , when the FET turns off causes a very high (500V and up ) overvoltage that can damage the FET .
bob along thats what protection circuits are for
Isn't the common reason why MOSFETs are prefered in SMPS' rather than IGBTs the rise/fall time? I could see an overall higher switching transition overlap on the IGBT than on the MOSFET. Meaning high switching losses, right? Therefore a rapid decrease in efficiency. So when are IGBTs used in professional applications?
In high voltage/high current applications with a medium frequency (
Yeah, I didn't miss that part :) Though I haven't seen many switch mode power supplies that fit the "high voltage/high current with medium frequency" description, making use of an IGBT. Is that due to high switching losses and the bigger Miller plateau? You might know?
Ah yeah, seems logical, how about the efficiency?
I guess IGBTs are more rugged compared to MOSFETs, just like SCRs but no latching.
Yeah, eventhough they are more modern, also a crap tonne more expensive.
The transistor is my favourite component
Thanks for such an informative video.
What about the BJT Sign, I am confused with the arrow at COLLECTOR. I have learnt it at EMITTER.
It seems to me that one BIG factor on driving MOSFETs is the high Gate-to-Source capacitance. e.g. When the Drain is grounded and you switch a high voltage (open collector style) load, it reflects back thru the Gate so your driver has to be able to handle this transient. I wonder if this issue does not exist in the IGBT.
great explanation and nice handwriting.
From my experience...IGBT => It Goes Bang Too...
IGBT's are powerful switches but even thought they are very sensitive to gate overvoltage, fast voltage rise (Miller effect - which could cause transistor to open) and driving them also takes much energy... Using them for tesla coil is only possible with good driver, delay timing control and low resonance frequency... For driving tesla coil I recommend using SiC MOSFETs which turn on/off times are about 20ns usually.
i love your channel, it explains thing so clearly
1:37 - bipolar transistors are represented with the arrow pin as the emitter not the collector.
:)
Nice video. Mosfets can be connected in parallel bjt like diodes can't. Do Igbt can be in parallel ?
Gracias por los subtitulos en español, muy buenos tus vídeos.
can i use an IGBTQ instead?
mr. great Scott , what and where did u study ??? ... u are very well versed in electronics.
I think I learn more from this video than having lecture in my university
6:50 wrong assigned Collector & Emitter on the BJT (sorry for pointing it out)
pls watch this guy he is very creative and comes always with nice prokect
When talking about the times, at 4:55 and before, neither times for the MOSFET or IGBT fit within the datasheet specs.
IGBT: 145ns, 240 ns // MOSFET: 32ns, 160ns. Why do you say that they fit within the specs of the datasheet and sum all the times at 5:01 ?
1:41 For the pnp BJT, the pin with the arrow is the Emitter right?
i love your videos. i wish i can be as good as you are in electronics. haha i don't know what half of the things you say are! but i still watch your videos because they are interesting
HeyImBrandon a little education never hurts
I used to hate his videos because I didn't understand the majority of them, but I have been studying and learning and now I've gotten to where I understand the majority of them.. just take steps and you will get there
Hola...!! Excelentes vídeo..!! muy bien explicados..!! Seria bueno que hagas un vídeo explicando las principales diferencias con los nuevos "CREE MOSFET" y los IGBT..!! SALUDOS From ARGENTINA..!!
thanks GreatScott! you are awesome
please i'm waiting for the quadcopter project and thank you so much
at 4:40 of your video, i see theres a resistor between the tc4420 and the igbt, is that for current controll as to keep thigbt from createing excess frequencies from what you inputed?
Hi Scott. It's possible to use IGBT for DC switch, for example in solar powered circuits? Relays are impossible to use in solar DC circuits, because of electric arc.
yay i actually understood something again by the way
LOVE YOUR VIDS
:-)
Awesome :-)
Wold love to see a video comparing JFets and Mosfet
Hi GreatScott!, When designing a H-bridge circuit, why are MOSFETS typically used compared to standard transistors? Could we not use the Darlington pair configuration compared to the MOSFET? Could we use MOSFETS in a Darlington pair configuration?
Sir can I use IGBT for distribution of current equally for different loads with constant current
can you makes video about comparison between bootstrap gate driver and isolated power supply gate driver. thank you.
mosfets are great with the gate run from clean square wave signals but are not happy with a linear drive signal. IGBT is vastly superior in this mode acting like a BJT without the high drive currents. I think you said this.
can we use IGBT to operate power capacitors(KVAr) to be used for power factor correction
can you substitute 8N60 (MOSFET) for STGP7NC60HD (IGBI) in a 3 phase washing machine motor?
What type of resistor did you use between the tc4420 and the igbt
I want an example of switching an AC device with an IGBT. Do we connect the ground to neutral, or earth?
Don't use an IGBT for switching AC they are only meant for DC. Use a triac for switching AC and the triac is connected to Neutral
Hey! Thank you for the video! One observation: on 2:13 I see in PDF 5v being mentioned as a trigger for the switch. But when you show the lamp only turning on at 12 volts on minute 2:15 then I decided to note it here. Can someone help me to understand what was going on?
It only shows the collector/emitter voltage and not the gate/ground voltage, because it's probably a 12V lamp. You can see the gate voltage on the right screen of the power supply.
I personally identify as a 10k Ohm Resistor, but I appreciate the awareness about the IGBT community.
is IGBT capable of switching AC?the datasheet doesn't mentioned that
@greatscott I was wondering if you had any advice I want to replace my motorcycle starter Solenoid to solid state can you recommend any mosfet's that can handle 12.0v-14.4v with bursts of current around 250 amps. I look forward to hearing from you thank you for your time.
Thank you for your excellent content!
As a request, could you make a video on high voltage buck converter?
Something like 400V DC input!
Not so hard bro.... Just do it.... I'm dealing with it daily 😂
....there's something to squeal about .
Maybe some more info could be added but still it's a good intro. Thanks.
The thing I don't understand is that he connected the emitter directly to ground and the lightbulb in-between the collector and the positive. But if you switch the too let's say put the positive on the emitter and the lightbulb in-between ground and collector. It doesn't seem when I tried that.
Is there another type of IGBT that Vce and Vge is negative? is it just like MOSFET and BJT have n-type and p-type ?
Nice. Much clear concept explained!