53.2.5. Output Impedance Analysis

Try these first

1. 1.

   What is the purpose of a coupling capacitor in amplifier circuits?

   Hint

   Think about what kinds of signals you want to pass through.

2. 2.

   How does removing a capacitor affect voltage gain?

   Hint

   Consider what happens to voltage division.

3. 3.

   What impact does the absence of a coupling capacitor have on input resistance?

   • Increases
   • Decreases
   • No Change

   Hint

   Consider how resistances in parallel function.

4. 4.

   True or False: Removing a coupling capacitor can increase voltage gain.

   • True
   • False

   Hint

   Remember how voltage is divided in circuits.

5. 5.

   In a circuit without coupling capacitors, calculate the expected output voltage if the input voltage is 1V, given the impedance ratios discussed.

   Hint

   Remember to use voltage division principles.

6. 6.

   Provide a design modification suggestion for a Common Base amplifier if a coupling capacitor cannot be used due to space constraints.

   Hint

   Think outside the box about redesigning traditional components.