Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

axi Group Title

VS=100V, R=1kΩ, and the transistor parameter f=1mAV3. The amplifier is biased with VIN=4V. 1.)What is the dc operating point (bias) output voltage VOUT (in Volts) of this amplifier? 2.)What is the small signal gain (vOUTvIN) of this amplifier when it is biased as above?

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. Coolamigo Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Please ome one reply with formulae

    • 2 years ago
  2. nickfrei Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    1.) VS-(R*iD) where iD=f*(VIN)^3 and f is in A/V^3 so that, VS-(R*(f*(VIN)^3)) Just make you convert f to A/V^3 ; if you plug in .001 you will get a good answer if you plug in 1 you will get the wrong answer. In your case i believe the answer is 36 which i got from 100-(1000*(.001*(4)^3))

    • 2 years ago
  3. nickfrei Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    2.) -3*f*(Vin^2)*R where f is in A/V^3 and R is in ohms (both like number one) In your case i believe it's -48: -3*.001*(4^2)*1000

    • 2 years ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.