55.3.1. Common Emitter and Common Collector Configurations

Try these first

1. 1.

   What is a common emitter configuration used for?

   Hint

   Think about high voltage gain.

2. 2.

   What does the common collector configuration do?

   Hint

   Consider what happens to the input signal.

3. 3.

   What is the primary use of a common emitter amplifier?

   • Current Amplification
   • Voltage Amplification
   • Impedance Matching

   Hint

   Think about its key characteristic!

4. 4.

   True or False: The common collector has a voltage gain greater than 1.

   • True
   • False

   Hint

   Consider how it behaves as a buffer.

5. 5.

   Design a multi-stage amplifier circuit using a CE stage followed by a CC stage. Calculate the expected voltage gain and discuss the importance of impedance in your design.

   Hint

   Look into gain formulas and impedance transformation.

6. 6.

   Evaluate the use of a common base configuration between two amplifiers. How would it impact overall gain and bandwidth?

   Hint

   How do the properties of the common base affect signal flow?