87.5.1 - Transistor Sizing for BJT
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is the purpose of a current mirror?
💡 Hint: Think about why we might want to duplicate current in electronics.
What is a BJT?
💡 Hint: Consider the types of transistors used in analog circuits.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary function of a current mirror?
💡 Hint: What is its main role in circuits?
True or False: A cascode transistor decreases the output resistance.
💡 Hint: Think about the configuration and its purpose.
3 more questions available
Challenge Problems
Push your limits with advanced challenges
Design a current mirror that can handle a reference current of 2 mA using BJTs, ensuring that each transistor's size is appropriately calculated for heavy load conditions.
💡 Hint: Refer back to how different sizes affect current output in mirrors.
Evaluate how decreasing the supply voltage to 5V from 12V affects the output current and overall circuit performance of your designed current mirror.
💡 Hint: Consider how resistive losses may affect the current when supply voltage changes.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.