47.2. Outline of Today’s Presentation

Try these first

1. 1.

   What is the purpose of a common collector amplifier?

   Hint

   Think about amplification types.

2. 2.

   Define voltage gain.

   Hint

   Consider the relationship of input and output.

3. 3.

   What defines a common collector amplifier?

   • It increases voltage
   • It increases current
   • It does not amplify

   Hint

   Think about its function in circuits.

4. 4.

   True or False: High input impedance is desirable in amplifiers.

   • True
   • False

   Hint

   Consider how amplifiers interact with input signals.

5. 5.

   Design a common collector amplifier with the following specifications: DC Supply = 12V, Load capacitance = 150 pF, and bias current = 1 mA. Calculate the voltage gain.

   Hint

   Remember to keep the transistor in the active region.

6. 6.

   Analyze how changing the source resistance affects the upper cutoff frequency in a common collector amplifier.

   Hint

   Utilize the frequency cutoff formula to demonstrate the impacts.