New Video: Back to Basics - Introduction to JFETs and MOSFETs...

[w2aew]

About 20 minutes of the basics of JFETs and MOSFETs, including basic operation, characteristics, and definitions of things like depletion mode, enhancement mode, linear region, saturation region, etc.

[naragon1]

Great tutorial, I especially liked the visual demo of the current on the scope. I think I finally understood how FETs work and how to use them. You've got one new subscriber on your Youtube channel.

[w2aew]

Great tutorial, I especially liked the visual demo of the current on the scope. I think I finally understood how FETs work and how to use them. You've got one new subscriber on your Youtube channel.

Thanks!  I hope that you find some of my other 200+ videos just as useful.

[alexanderbrevig]

Excellent, as always  

[rx8pilot]

I love your videos. The explanation coupled with the illustrations really make things clear.  Fingers crossed that you will consider more advanced discussions of FETs.  Possibly the factors to consider in choosing devices for specific uses. 

Sent from mobile device.... Keeping it short and mis-spelled

[Howardlong]

I sure wish my lecturers at university 30 odd years ago could have elucidated as well as Alan does. Pretty much without fail, I always learn something new and I've been doing this stuff for over 40 years.

[fivefish]

I sure wish my lecturers at university 30 odd years ago could have elucidated as well as Alan does. Pretty much without fail, I always learn something new and I've been doing this stuff for over 40 years.

+1

Another clear, concise and very easy to follow lecture, Alan!
PS: Love the garden hose and vise drawing. hahaha

[w2aew]

Another clear, concise and very easy to follow lecture, Alan!
PS: Love the garden hose and vise drawing. hahaha

I first wanted to draw a human hand "pinching" the hose to simulate the pinching of the channel, but my artistic skills aren't that good.  I figured I could draw a C-clamp though ;-)

[Howardlong]

I sure wish my lecturers at university 30 odd years ago could have elucidated as well as Alan does. Pretty much without fail, I always learn something new and I've been doing this stuff for over 40 years.

+1

Another clear, concise and very easy to follow lecture, Alan!
PS: Love the garden hose and vise drawing. hahaha

In my experience, in university undergraduate EE courses, far, far too much time is spent going into the physics and deriving various models with excessive amounts of maths, which 95%+ of EEs will never ever use, but it makes it easy to set an exam paper. Far better would be to spend the time on practical building block example circuits that a real EE would use. Keep the excessive physics and model derivation to more specialised post grad courses.

An example of the sort of excessive academic puff I had to deal with is here http://cc.ee.ntu.edu.tw/~lhlu/eecourses/Electronics1/Electronics_Ch5.pdf

So what did I learn from Alan's video? I learned where the terms depletion mode and enhancement mode come from. I knew what they meant, although I frequently had to think about which way around they are, but now I won't ever have that problem again. You'll see in that PDF I cited, those terms are never explained, but used frequently.

[BravoV]

In my experience, in university undergraduate EE courses, far, far too much time is spent going into the physics and deriving various models with excessive amounts of maths, which 95%+ of EEs will never ever use, but it makes it easy to set an exam paper. Far better would be to spend the time on practical building block example circuits that a real EE would use. Keep the excessive physics and model derivation to more specialised post grad courses.

+1  , as a hobbyist, the excessive theory on quantum physics is way-way too overkill and most of the times scared noob like hell, yeah, I've been there , its not easy especially reading and trying to digest it alone. 

[JohnnyBerg]

Great video, as all videos are!

[albert22]

 
I always learn something from your videos.
Thanks

[Zad]

This video is way ahead of MIT's video course. With university level lectures, somehow lots of "stuff" just gets in the way of a nice clear explanation, like they are trying to throw all sorts of things in together.