47.1. Analog Electronic Circuits

Try these first

1. 1.

   What is a common collector amplifier?

   Hint

   Think about where the output is located in this configuration.

2. 2.

   Why is biasing important in a common collector amplifier?

   Hint

   Consider how a transistor operates in its different regions.

3. 3.

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

   • 0
   • Close to 1
   • Above 10

   Hint

   Consider the implications of its amplification characteristics.

4. 4.

   True or False: Parasitic capacitances can increase the bandwidth of an amplifier.

   • True
   • False

   Hint

   Think about how these components behave in AC circuits.

5. 5.

   Design a common collector amplifier with specific parameters: V_BB = 10V, target output gain close to 1. Specify values for resistances and load capacitors necessary to maintain this performance under load variations.

   Hint

   Use preferred formulas to derive component values based on followed design guidelines.

6. 6.

   Calculate the new upper cutoff frequency of a common collector amplifier if the source resistance is added to the output side, specifically if R_S = 50 kΩ and C_load = 200 pF.

   Hint

   Use the same upper cutoff frequency formula and adjust for the new values.