Practice Improvisation Using Cascode Transistor (87.2.2) - Numerical examples on current mirror and its applications (Part-B)

Practice: Improvisation using Cascode Transistor

Lesson 87.2.2Numerical examples on current mirror and its applications (Part-B)

Practise this section

9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is a current mirror?
Show hintHide hint
Think of it as a current copying device.
Question 2.
What does a cascode transistor do?
Show hintHide hint
Consider how towers stack to increase height.
3Question 3.
What is the purpose of a cascode transistor in a current mirror?
- To increase current
- To improve output resistance
- To lower voltage drops
Show hintHide hint
Think about stability for current flow.
4Question 4.
A BJT current mirror must keep transistors in what operating region for optimal performance?
- True
- False
Show hintHide hint
Remember the properties of transistors under load.
Question 5.
Design a cascode current mirror to produce a stable output current of 2 mA with a load change of up to 5V. Provide calculations for all necessary components.
Show hintHide hint
Keep in mind the effects of output voltage variation.
Question 6.
Compare the output performance of a traditional vs. a cascode current mirror under varying load conditions, providing analytical expressions.
Show hintHide hint
Investigate how cascode improves stability.

5 more questions in this section. Enroll free to practise them all.