48.1.4. Output Resistance Calculation

Try these first

1. 1.

   What is the function of the operating point in a transistor?

   Hint

   Consider how transistors amplify signals.

2. 2.

   What does output resistance affect in an amplifier?

   Hint

   Think of connections to speakers or other devices.

3. 3.

   What is the primary purpose of output resistance in amplifiers?

   • Affects gain only
   • Influences load performance
   • Increases input power

   Hint

   Think about the relationship between amplifier and load specifications.

4. 4.

   True or False: The operating point is irrelevant for amplifier performance.

   • True
   • False

   Hint

   Remember the role of Q-point in amplification.

5. 5.

   Design a common collector amplifier with an output resistance of no more than 1kΩ. Choose suitable resistor values and justify your choices.

   Hint

   Use the parallel resistance formula to compute total resistance.

6. 6.

   If the supply voltage is increased, how will that affect the output characteristics of the common collector amplifier? Provide detailed reasoning.

   Hint

   Evaluate both upper and lower voltage limits.