I would like to add one more resource which is helps for electrical and electronics engineering students.
For anyone else who comes across this problem of feeling like they need to have a complete or foundational understanding for wrapping their heads around transistors and the PN junction (I did).
Try this link: http://www.allaboutcircuits.com/textbook/semiconductors/#chpt-2
Goto chapter two. They build you up from the very bottom, starting with quantum physics (although just what you need to know to understand the rest) and electrons and holes. As well as explaining the workings of different types of semiconductor components.
Very cool, thank you!More Useful Articles on Electrical Overhead power transmission Lines:
and it is free (legal)
Quantum Mechanics for Engineers by Dommelen
This is a pretty comprehensive free textbook with an introduction to the physics assuming little background, as it is intended for electrical engineering students who usually have taken at most one quantum mechanics course (and that is still uncommon):
It's actually a pretty good book, aside from a few poorly written passages here and there, along with some typesetting problems.
Yes indeed; very useful. I just checked and found that I bookmarked this on 6-20-2011.And a nice link by @Crass_Oscillator to a reference for learning about Semiconductor Devices (from a thread about that subject):
http://www.lisa-fet.com/A great example in the medium productivity software level space is LISA. It is a really nice basic FEA package that imports a variety of common 3D file formats for well above trivial level designs and costs $300. I am guessing that this venture is a one man show, but both the software and support are top shelf. It does 80% of what I find necessary for good/economic design and saves a great deal of wheel-reinvention on my part. From the verbose responses to support questions, you can tell the gent behind the package lives, breathes and loves practical, usable FEA. He appears to be having a ball.
I'm was trying to figure out what "free/affordable" meant from their website.
Nice find, thanks for sharing, Tom. I especially like how they are careful about copyrights and author permissions on the documents.A treasure trove of old magazines. Dating back to at least 1905.
I notice AN31 is still around but it's now a TI document (TI bought National some years back).
The questions must have persisted because they now show power supply connections in their sample circuits.
Here's a link - have fun !
Agreed. Very useful circuit diagramsNice link by @Windadct about "Magnetics in Switched-Mode Power Supplies" from OnSemi: