7.13. Summary of Key Concepts

Try these first

1. 1.

   What does BJT stand for?

   Hint

   Think about the type of transistor it is.

2. 2.

   Name the three terminals of a BJT.

   Hint

   They all begin with distinct letters.

3. 3.

   What is the primary function of a BJT?

   • Voltage regulation
   • Current amplification
   • Switching

   Hint

   What do you think happens when you feed a BJT a signal?

4. 4.

   In which region does a BJT operate when it is fully ON?

   • True
   • False

   Hint

   Think of the regions we discussed.

5. 5.

   Assume you are designing an audio amplifier circuit using a BJT. Discuss how you would select the configuration for maximum performance.

   Hint

   Consider the application of your design and what you want from the amplifier.

6. 6.

   Explain how thermal runaway can affect a BJT and propose methods to prevent it in a circuit design.

   Hint

   Think about factors that would lead to increased current flow and how to manage them.