Your explanations are intuitive. It helps to remember the concepts. Now the enhancement mode symbol makes sense to me. The dotted line gets enhanced into a solid.
I have to say this...You have literally gone from theory to advantages, to use and reading datasheets, so closely. I wish these gate drivers were available on mouser or Digikey. Anyways, more power to you man! Respect! M subscribing!
ugetridofit I have some more videos lined up with GaN FETs, but unfortunately the first one that took me awhile to get set up - the eval board was DOA. This was a loaner card that someone else blew up before they sent it to me:( I have different cards tho, but need a new setup so I’ll get a new video soon. Thanks for asking about it!!
awesome tut thank you!. i am thinking to make a tone filter from 1 ch input to 3 output like a cross over. if this is so fast, i believe some quality tunning in voice coils as it removes some distorstion .
Thanks for asking. Yes to a point. These GaN FETs will help lower the losses as you go, and even if you don’t go faster, the sharper turn on and off edges will be more efficient.
They are cool devices - where did you obtain it, I can't find it on Farnell, RS, Mouser or Digikey? Even Renesas page has 0 stock at distributors. Can't wait for you to design and build something with it given that Renesas are targeting it at the space market - KISS, where the SS stands for space ship!! :) Having just 'finished' my SMPS, I was thinking that I need to get a better understanding of Mosfets so I was going to try and build a simple circuit with one of the few I have and measure against the data sheet to see if I can get a better grip on what is happening. It would be great to see you do more of this one's specs; also see if you can control the ringing - I guess there's less scope given the IC is on the board already. I also need to find a cheap signal/waveform generator for stuff like this.
Hi Andrew! Check with the EPS apps engineer who provide the GaN and non-Space parts; Mark Gurries (408) 580-7827. I have the connection to The a Space parts too if you need that;)
Nice video, as always :) You know, i just don't understand something. A bit off topic, but ... why can't 2 copper layers (top and bottom) be enough ? Why do some manufacturers choose to use more, which i believe are placed inside the PCB itself ? It makes circuits impossible to fully reverse engineer, troubleshoot, etc. Or am i wrong ? Thanks
You are right - it makes it very difficult! With all the pins on chips now with so many traces going everywhere it has forced many boards to go more layers. It costs more but that’s what is needed on many boards today. Great question!
13:25 - So from my understanding, the driver chip is used specifically to supply and drive the GaN FET under 6 volts? If that is the case can I use a microcontroller which it's output pin can supply 5 volts to drive the GaN FET using PWM? This way I do not need a dedicated driver chip when a microcontroller can do the task just fine?
Great question. It depends on the vendor and the FET. GaN will be damaged above 6V and doesn't need as much drive current as MOSFET, but you would want to be able to drive it off too, so that might be where you will wan to look at the specs.
Do you have any idea if the prop delay is dependent on the demo brd layout and/or some sort of "demo" drive package? If a revolution in FET fab comes at the price of mandatory driver packages and a really poor prop delay, I am missing the revolution. We live in 100's of GHz land now. SMPSUs are sort of at developmental apex (except for BoM, size, etc.). Something with this kind of delay must have some other benefit. Is it the rad tolerance? Forget space. Tiny market. Rad would be about a new standard in EMP resistance. Is that the deal? Basically, where's the beef?
I checked over at Ben-Yaakov's (and an unmentionable) channel and got some answers. In/out capacitance, RDS On, etc., all are about the same as normal MOSFET tech (well, the good stuff anyway, not the 1990's junk). Here's the killer: That driver package is required, complete with its signal distortions. Because, absolutely insane as it may be, these things are in the on state at power up. Yup, dead short at start up. That's why the driver is there. Maybe if these things ever take off either the insanity or the driver distortions will get fixed. This is not yet even close to a revolution. It's at best a shot on goal. If they gave you this board, you should have said so.
You are wise - but keep watching and providing feedback - I will be really happy to hear about your experiences...I hope I can help you grow faster than you might think... I personally think that you are ahead in the fact that you are interested enough to be here...
They run much cooler but heat sink is done nearly the same - also esd from what I understand. The GaN will improve the noise issues but we will have to se how it turns out. Good to hear from you! Did you get your copy of Microcap from my last video?
well, looky here!! u'r red hot future tech!! yup! the only drawback is the ''potential''!! sounds like a good weekend party 4 a month!! please! no1 say, let's let our computer tell us the answer!! just tell it 2 do all the work(W)........🐕🦔🌮🎠....''figure of merit'' super model + a beer W/ taco!! sounds like surface friction's!! asfe's.. oh boy..campfire songs!!! love U'r vid's Eddy...U'r Da BOSS! that's a descent design? fast! 2 bad U cant test the purities of the alloy's..
![Quando Rondo - Life Goes On [Official Music Video]](http://i.ytimg.com/vi/eIf3fhMXAow/mqdefault.jpg)
Glad I found your channel, you have such a good video content
Thank you - I really appreciate you!
Ed is very modest about his knowledge, Just love his content, Keep up the good work Ed!
Thank you Raw Jam, that’s very nice of you to say!!
I heard about GaN but never had the time to go deeper into it.
Thanks for the introduction!
You bet - and thanks for the feedback!
the gun fighter said the same thing, just before he screamed. I found it?
Learning more than college!
Thank you! I hope to offer more as time goes on;)
Your explanations are intuitive. It helps to remember the concepts. Now the enhancement mode symbol makes sense to me. The dotted line gets enhanced into a solid.
Thank you for the really great feedback! I appreciate you!
great video! demonstrated and explained very well for people who are less experienced (like me), thank you!
Thank you and I appreciate you. Let me know if I need to keep it simple:)
Great video. You got the soul of a teacher! Keep up the good work.
jaime barr Thank you! That’s a great compliment;)
@@KissAnalog My pleasure. You're like a jazz player who does Engineering.
jaime barr I love that! Thank you!
I have to say this...You have literally gone from theory to advantages, to use and reading datasheets, so closely. I wish these gate drivers were available on mouser or Digikey. Anyways, more power to you man! Respect! M subscribing!
Hi Eddie,Heads up on the future of a power electronics, cool. Your presentation on it was great. Thank you
Thank you! I appreciate your feedback!
Awesome video Ed! Much appreciated! Fantastic tutorial!
Jay Erickson Thanks Jay! I appreciate the nice feedback!!
Great! Thanks Eddie.
You bet! Thames for the feedback!
I don't know how you don't have thousands of subscribers? This is awesome content
PS you remind me of James Hetfield
BHU1 LORD Thanks so much! I appreciate you!! LOL - I do get the Hetfield thing from time to time;)
I hope to see more about this GaN fet as far as current capability and heat.
ugetridofit I have some more videos lined up with GaN FETs, but unfortunately the first one that took me awhile to get set up - the eval board was DOA. This was a loaner card that someone else blew up before they sent it to me:( I have different cards tho, but need a new setup so I’ll get a new video soon. Thanks for asking about it!!
awesome tut thank you!. i am thinking to make a tone filter from 1 ch input to 3 output like a cross over. if this is so fast, i believe some quality tunning in voice coils as it removes some distorstion .
That sounds very interesting! I'd be happy to hear how it turns out. Thanks for the feedback;)
@@KissAnalog Not cool man. He's talking about removing distortion and you are talking about feedback. Just kidding, great tutorial
It is interesting to see these supplies on the market now. Framework uses it for their repairable laptops.
Thank you! I think the price tradeoff is making these look much better.
In simple the faster the switching the better, Is what I've taken from this, Better efficiency, Apologies if i got that wrong
Thanks for asking. Yes to a point. These GaN FETs will help lower the losses as you go, and even if you don’t go faster, the sharper turn on and off edges will be more efficient.
Could you please tell where I can buy this product.
Are you looking for the eval board or the driver?
@@KissAnalog both
Such a nice video very good explanation. This video is a year and a half old. Have you tried the Navitas GaN IC's?
Thank you so much! No, I actually just learned of them. I will get back into some GaN projects very soon. I am very interested in Navitas;)
They are cool devices - where did you obtain it, I can't find it on Farnell, RS, Mouser or Digikey? Even Renesas page has 0 stock at distributors. Can't wait for you to design and build something with it given that Renesas are targeting it at the space market - KISS, where the SS stands for space ship!! :)
Having just 'finished' my SMPS, I was thinking that I need to get a better understanding of Mosfets so I was going to try and build a simple circuit with one of the few I have and measure against the data sheet to see if I can get a better grip on what is happening. It would be great to see you do more of this one's specs; also see if you can control the ringing - I guess there's less scope given the IC is on the board already. I also need to find a cheap signal/waveform generator for stuff like this.
Hi Andrew! Check with the EPS apps engineer who provide the GaN and non-Space parts; Mark Gurries (408) 580-7827. I have the connection to The a Space parts too if you need that;)
I can’t wait to design with GaN. I have some ideas that I’ll take to board design. I’ll go over specs and how I choose FETs;)
Good Stuff!! Well Done
Thanks - I appreciate you!
Nice video, as always :) You know, i just don't understand something. A bit off topic, but ... why can't 2 copper layers (top and bottom) be enough ? Why do some manufacturers choose to use more, which i believe are placed inside the PCB itself ? It makes circuits impossible to fully reverse engineer, troubleshoot, etc. Or am i wrong ? Thanks
You are right - it makes it very difficult! With all the pins on chips now with so many traces going everywhere it has forced many boards to go more layers. It costs more but that’s what is needed on many boards today. Great question!
13:25 - So from my understanding, the driver chip is used specifically to supply and drive the GaN FET under 6 volts? If that is the case can I use a microcontroller which it's output pin can supply 5 volts to drive the GaN FET using PWM? This way I do not need a dedicated driver chip when a microcontroller can do the task just fine?
Great question. It depends on the vendor and the FET. GaN will be damaged above 6V and doesn't need as much drive current as MOSFET, but you would want to be able to drive it off too, so that might be where you will wan to look at the specs.
Not quite. You need specific driver to supply high dv/dt with high current output, deadtime control and perhaps protection related functionalities.
Do you have any idea if the prop delay is dependent on the demo brd layout and/or some sort of "demo" drive package? If a revolution in FET fab comes at the price of mandatory driver packages and a really poor prop delay, I am missing the revolution.
We live in 100's of GHz land now. SMPSUs are sort of at developmental apex (except for BoM, size, etc.). Something with this kind of delay must have some other benefit. Is it the rad tolerance? Forget space. Tiny market. Rad would be about a new standard in EMP resistance. Is that the deal? Basically, where's the beef?
I checked over at Ben-Yaakov's (and an unmentionable) channel and got some answers. In/out capacitance, RDS On, etc., all are about the same as normal MOSFET tech (well, the good stuff anyway, not the 1990's junk).
Here's the killer: That driver package is required, complete with its signal distortions. Because, absolutely insane as it may be, these things are in the on state at power up. Yup, dead short at start up. That's why the driver is there. Maybe if these things ever take off either the insanity or the driver distortions will get fixed.
This is not yet even close to a revolution. It's at best a shot on goal. If they gave you this board, you should have said so.
I hope my last video helped with some of this...thanks for the questions!
I’ve been wanting to build a GaNFET audio amp
But first I have to start with the old school stuff for foundation
I do too - I’ll have to work on this.
You are wise - but keep watching and providing feedback - I will be really happy to hear about your experiences...I hope I can help you grow faster than you might think... I personally think that you are ahead in the fact that you are interested enough to be here...
Kiss Analog will do
Between your channel and a few others and reading books from G.randy slone I think I’ll be well equipped enough to get it done
IIRC, all GaN chips are radiation tolerant. That is another advantage and may help in the next solar flare.
Great comments - I like it;)
Hi kiss Analog, Where can I purchase this board or similiar. Need for a Project. Many Thanks.
you should collaborate with other youtube on reviewing smartphone charger and cables
Thanks! I actually do have a video like that planned:) I am lookin into a collaboration with JohnAudioTech:)
Do they make Depletion Mode GANFETs also?
redrok
Thanks for the great question! Yes they do;)
WHAT ABOUT ESD AND,HEAT SINKING FOR THIS DEVICE?MOST AUDIOPHILES DO NOT LIKE CLASS D AMPLIFIERS BECAUSE THEY HAVE NOISE PROBLEMS.
They run much cooler but heat sink is done nearly the same - also esd from what I understand. The GaN will improve the noise issues but we will have to se how it turns out. Good to hear from you! Did you get your copy of Microcap from my last video?
Coronavirus is so bad, even James Hetfield had to get a new job.
LOL - we all do what we have to;) My middle name is James-no really;)
well, looky here!! u'r red hot future tech!! yup! the only drawback is the ''potential''!! sounds like a good weekend party 4 a month!! please! no1 say, let's let our computer tell us the answer!! just tell it 2 do all the work(W)........🐕🦔🌮🎠....''figure of merit'' super model + a beer W/ taco!! sounds like surface friction's!! asfe's.. oh boy..campfire songs!!! love U'r vid's Eddy...U'r Da BOSS! that's a descent design? fast! 2 bad U cant test the purities of the alloy's..
LMAO!! ;) It was my birthday weekend and I loved this comment;)