Introduction to MOSFETs (25-Transistors)

All about n-channel MOSFETs! Let's learn about CMOS transistors. Ohmic region, saturation, and cut-off regions explained. How to do simple biasing and how to draw a loadline with a MOSFET.
Aaron Danner is a professor in the Department of Electrical and Computer Engineering at the National University of Singapore.
danner.group
Video filmed and edited with help of CIT, NUS.

[@dwagner6]

Graduated with my MSEE but still find your videos on the basics like this so clear and useful!

[@grislytooth1]

Same here! These videos are a real gem

[@vicallday3325]

This channel is the truth

[@TheRevenant-pn2xi]

Thank you sir, I’ve never understood transistors as good as from your videos

[@sam42j]

thank you, your videos are really helpful.♥ I always come back to these just to brush up my EE

[@randywalekr3874]

Just like to say thank you once in a while.

[@heinzkreutziger2218]

Really good explanation.

[@vishalkalariya8754]

Thank you sir for well expalined and also team NUS associate. 🙏🙏

[@prakashgupta8146]

Thank you sir, your teachings means a lot.

[@zDoubleE23]

Yes!!! I’ve been waiting for this!

[@lohikarhu734]

Looks interesting, I'll have to get back to this! Nice subject, Aaron... often very important issue for power loss, safe area, EMC.

[@htinlinaung433]

Thank you,sir.

[@gregwmanning]

Great video, thanks

[@linkstateaubruce5201]

well explained, thanks

[@andymouse]

Cheers !

[@stefano.a]

25:33 I'm always been opposed to the concept of dynamic load line, this because the "AC" slope is relative to *small* signal around the operating DC point while the drawn dynamic load line go far away from the DC point. Please, try to calculate the equation of the load line: how can we find the intercept to Vds and Id axes?

[@gym5959]

Awesome

[@steverobalino3395]

About BJTs, when do you use Rin=re*beta +Re instead of Rin=re+Re only?

[@antra3505]

Biasing with the resistor network seems to be complicated. But with a drain feedback resistor, it is much easier. What's the difference between these two?

[@paulpaulzadeh6172]

Is transistor voltage control or current control or both?

[@egg99]

which transistor

[@kasaniSatyanarayana]

By changing the voltage at the gate pin, we can control the flow of electricity between the drain and source pins. If we supply 3.3 or 5 Volts to the gate pin we allow current to flow between the other 2 pins

[@kasaniSatyanarayana]

Nd BJT is current control device

[@paulpaulzadeh6172]

​Wrong , BJT control is both current and voltage, degenerate resistor in emitter is example of that. ​@@kasaniSatyanarayana

[@hjvanderlinden]

current controlled for a bipolar-junction resistor. Voltage controlled for a field-effect transistor or IGBT.

[@uni-byte]

I love that high tech, uber fancy DMM you have in front of you!

[@NicleT]

Why is the nomenclature so unintuitive? Thinking of water, the flow will go from the source to the drain. But with mosfet it seems the other way. Even the symbol defies logic. This is so confusing.

[@JonBrase]

N channel MOSFETs depend on the flow of excess electrons in the semiconductor, whereas P channel MOSFETs depend on the flow of "bubbles" without enough electrons, but current is always defined as the direction in which positive charge flows. So the "source" in an N channel MOSFET is the source of electrons, and conventional current flow goes into the source, whereas in a P channel device it's the source of "bubbles", and conventional current flow comes out from the source. I don't know what the logic is for the arrows on the body terminal, though. As for why we define current flow as the flow or positive charge when, outside of semiconductor contexts, electrons are always the charge carriers of interest, that just comes from the fact that we knew what charge and current were before we knew the underlying physics. One type of charge was arbitrarily defined as "positive" and the other as "negative", and current was defined to be the flow of positive charge (and thus opposite to the flow of negative charge), and everything was great until we discovered that it's negatively charged electrons that actually flow.

[@Ayyanz49]

Which mike u r using?

[@hawibalgwang]

mike ehrmantraut

[@SINHRO-FAZA]

Зачем это масло-масленное, никто ен использует мосфеты как линейные транзисторы, т..к даже в одной партии напряжение открытия транзистора сильно варьируется, что сами и сказали, НО продолжают пол часа рассуждать о информации, которая бесполезна. Нужна линейность, используйте биполярные транзисторы, нужны ключевые свойства, берём мосфеты, остальное всё только засорение.