SRL Archive - News and General

So, I figured I had to share my hard work with SOMEONE. So here it is. For one of my classes I had to give a 2 hour lecture on transistors… It was pretty intense.

So here's the technical report and slide show for it. If you wanted to know how to make a transistor circuit, this is the stuff for you.

(Umm, Ok, so this isn't the final draft of the technical report, I forgot that I didn't save it before printing. Whatever, I'm not going to type the rest of it just for you guys :P. The info that is in there is good enough. It stops just short of showing implementations. The slide show has them though.)

Enjoy

P.S. The extension name has been changed to .scar to allow me to upload the file (just over the limit) It really is a .7z file, just change the extension.

Interesting.

What profession are you studying for?

.. plus, how would you manage to give a lecture lasting two entire hours about transistors?
There really isn't that much to say about them.
(Unless you list every single thing they're commonly used in, but ..)

I'm studying to be a computer engineer.

As for the lecture, the first half was essentially the nitty-gritty of how a transistor work (p-type substrates, MOS Capacitors, ect) The second half was talking about implementing CMOS logic, giving examples of it, and then having the class group up and work out some of their own examples.

And I barely skimmed the surface :) I didn't even talk about the process of making the substrates, TTL logic, or really NMOS logic stuff, nor did I get into the math behind everything. (Believe me, there is a LOT of math behind a transistor).

From: boberman
I'm studying to be a computer engineer.

As for the lecture, the first half was essentially the nitty-gritty of how a transistor work (p-type substrates, MOS Capacitors, ect) The second half was talking about implementing CMOS logic, giving examples of it, and then having the class group up and work out some of their own examples.

And I barely skimmed the surface :) I didn't even talk about the process of making the substrates, TTL logic, or really NMOS logic stuff, nor did I get into the math behind everything. (Believe me, there is a LOT of math behind a transistor).

… o_O we only had to know that it has B C and E points (if that's correct) :P

From: Laur€ns
… o_O we only had to know that it has B C and E points (if that's correct) :P

Depends on the transistor your talking about. For digital logic, MOSFETs are primarily used. You're referring to a bi-polar junction transistor. They are useful for simple circuit, however, they are not good for digital circuits, their biggest problem is that the base voltage has an effect on the output voltage. (it is amplified, for a analog circuit this might not be bad, potentially even desired, for a digital circuit it can be disastrous).

MOSFETS have a G S D (Gate, source, drain) The drain's voltage is almost equal to the sources voltage, and the voltage at the gate has almost no effect on the output voltage (IE an overly high gate voltage doesn't produce an overly high drain voltage.)

I'm not too familiar on Bi-Polar junction logic circuits as my presentation was on MOSFETs. I just know that the main benefits to a bi-polar junction is that it is generally faster then a MOSFET and easier to manufacture.

From: boberman
<tl;dr>

Okay, I completely get it now :p

Finally, at least I didn't have to go to wiki to figure out how something worked this time :)