47.1.2. Common Collector And Common Drain Amplifiers (Contd.): Numerical Examples

Try these first

1. 1.

   What is the primary purpose of a common collector amplifier?

   Hint

   Think about what happens to the signal in a buffer.

2. 2.

   What is the expected voltage gain in a common collector configuration?

   Hint

   Consider the definition of voltage gain.

3. 3.

   What is the expected voltage gain of a common collector amplifier?

   • Less than 1
   • Equal to 1
   • Greater than 1

   Hint

   Remember the definition of a voltage follower.

4. 4.

   True or False: The operating point of a transistor only affects its ability to amplify.

   • True
   • False

   Hint

   Think about how transistors operate in different regions.

5. 5.

   Design a common collector amplifier with specified parameters and calculate its performance, including voltage gain and bandwidth.

   Hint

   Ensure you keep track of all parameters you've learned.

6. 6.

   Compare the performance between an ideal common collector amplifier and one with realistic parasitics included. How would the results differ?

   Hint

   Consider specific problems encountered with real circuits.