Thank you, I was confused on what to do when there was a self biasing resistor.

Is it not the capacitors treated as open circuit in small signal model?

Thanks 😊👍🙏💯

Great video, cheers!

Can you please edit this video. You made a mistake at 3:06.

Much appreciated Sir 😊 MOSFET drain feedback bias One minute A: Id=k(vd-vt)^2 15-vd/15=0.25(vd-1.5)^2 Too lazy to solve the value of ax2+bx+c=0 vd gm=2k(vgs-vt)^2=2k*(id/k)^1/2=2*(k*id)^1/2 (Id/k)^1/2=vgs-vt B: vo=-u*vi*(rl'/ro+rl') vo/vi=41.2*(3.75/(68.75+3.75))=154.5/71.5=-21.6v/v C: Rin=rg/(1-A)=10/22.6=3.164M ohm Ro=ro//rd//RL//(rg/(1-1/av))=~

What really is the Va? I dont see where that is or what it means 😢

Wow! Thanks for this 🙏

in the small signal model you are missing the Rs, you seem to directly connect the source to ground.

this is incredible video, hope you can make more video of solid state device.

Thank you, Finally clicked for me.

I have only one comment on the beautiful presentation (thanks!): In the first few minutes the instructor begins by saying: when photons arrive then we measure a current. Is flawless. But then he tells me that positive charges move together with negative ones. But this does NOT generate current !!! I also have some questions: it is said that they move together. Good. Then we arrive at the result that the mobility is that of minority charges. Great, but mobility is a positive number. Then: what is the direction, particularly in the case I create positive and negative charges in an intrinsic semiconductor? (Where the concept of minority charges makes no sense). That is: does ambipolar transport only concern doped semiconductors in the presence of an external electric field?

Good day sir, is there any chance you may have more videos on advanced electronics? This playlist really helped me during the first half of my semester.

The video is helpful

At the “3:06” mark into the video, should “j2” times “1/2” be “j” instead of “1”

what a fantastic Video, thanks for this math explain ,really extremely helpful 🥰

Loved the vid, super helpful

I like your channel please send me your watsapp number or group link.for help

Fantastic video, thank you for the information!

What will happen to the ambipolar mobility at high level injection? Since Δn=Δp, will it be zero? But how does this exaplin the carrier flow if the mobility is zero? PS: At 8:56 you didn't write the derivative on left side of the equation.