100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
CH9 FET Amplifiers And Switching Circuits Solved Examination 2024/2025 $15.99   Add to cart

Exam (elaborations)

CH9 FET Amplifiers And Switching Circuits Solved Examination 2024/2025

 6 views  0 purchase

CH9 FET Amplifiers And Switching Circuits Solved Examination 2024/2025

Preview 2 out of 6  pages

  • August 28, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
All documents for this subject (2)
avatar-seller
Schoolflix
CH9 FET Amplifiers And Switching
Circuits Solved Examination 2024/2025

The formula for the voltage gain of a common-source amplifier is RD/gm. Answer: F



Load resistance added to the output of an amplifier increases the voltage gain. Answer: F



The addition of a source bypass capacitor will increase the voltage gain. Answer: T



FETs are superior to BJTs in almost all switching applications. Answer: T



FET amplifiers generally have lower distortion than BJT amplifiers. Answer: F



Cascode amplifiers are used primarily in radio frequency applications. Answer: T



Most of the gain in a JFET-based cascode amplifier is provided by the CS amplifier. Answer: F



Class D amplifiers usually employ JFETs. Answer: F



The 3 stages in a class D amplifier are the pulse-width-modulator, the switching amplifier, and the low-
pass filter. Answer: T



A pulse-width-modulator employs a square-wave generator and a comparator. Answer: F



A MOSFET switch is turned on and off by changing the source voltage. Answer: F

, An analog MOSFET switch is turned on when the gate receives a positive voltage pulse. Answer: T



CMOS combines n-channel and p-channel D-MOSFETS. Answer: F



Power MOSFETs have a negative temperature coefficient and therefore are less prone to thermal
runaway. Answer: F



In an amplifier using a JFET, the gate current is approximately 0. Answer: T



A common-source amplifier has a ________ phase shift between the input and the output. Answer:
180°



Refer to the figure above. Assuming midpoint biasing, if VGS = -4 V, the value of RS that will provide this
value is Answer: 800 ohms



Refer to the figure above. If Vin = 50 mVp-p, the output voltage is Answer: 440 mVp-p.



Refer to the figure above. If the measured value of Vout were below normal, the problem

might be that Answer: C2 is open.



Refer to the figure above. If Vin = 1 Vp-p, the output voltage Vout would be Answer: undistorted.



Refer to the figure above. If ID = 6 mA, the value of VGS is Answer: -9 V.



Refer to the figure above. If gm = 6500 S and an input signal of 125 mVp-p is applied to the gate, the
output voltage Vout is Answer: 2.68 Vp-p.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Schoolflix. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $15.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

78462 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$15.99
  • (0)
  Add to cart