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

AshaNagaraj Group Title

As VIN is increased, the output voltage VOUT decreases and the MOSFET goes out of saturation. For the value or RL found above, what is the maximum input voltage VIN in volts such that the MOSFET will remain in the saturation region?

  • 2 years ago
  • 2 years ago

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

    8k and -0.5

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

    What is the maximum input voltage in Vin?

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

    for these values .. VS+=1.0V, VS−=−1.0V, and the MOSFET parameters are K=1 mAV2 and VT=0.5V. the answer is 0.093

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

    thanks

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

    I got it!!! Actually in finding valid Operating ranges \[V0= [ (-1+\sqrt{1+2*K*RL*Vs}) ]\div KRL\] In the above formula Vs= applied voltage across RL and Drain to Source( i.e Vds).. \[Vs= ids*RL + Vds (or) Vs=ids*RL + V0\] But in given problem , by applying KVL to output loop we get \[Vds+idsRL = Vs+ - Vs-\] \[Vds+ids*RL = 1 - (-1) =2 \] So in finding V0 substitute Vs=2 (NOT 1)... And we know Valid maximum input range is Vgs = V0 + Vthershold Applying KVL to input loop \[Vin = Vgs + Vs-\] Substitue the value ...You will get it !!!!!! Cheers!!!!

    • 2 years ago
  6. MNM009 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    how will u find RL?

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

    \[Vin=Vgs+(Vs-)\]\[Vout=(Vs+) -ids*RL\]\[ids=(Vgs-Vt)^2 *K/2\]Now you have all the required Vin and Vout , So go and subtitute to find RL... Cheers!!

    • 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.