66.2.3. Circuit Analysis Including Small Signal Model and Gain

Try these first

1. 1.

   Define an Active Load in amplifiers.

   Hint

   Consider what type of components can provide dynamic responses.

2. 2.

   What is the main limitation of a common emitter amplifier?

   Hint

   Think about how resistors affect the voltage output.

3. 3.

   What is the primary function of active load in amplifiers?

   • To reduce noise
   • To improve voltage gain
   • To stabilize temperature
   • To increase power

   Hint

   Consider the advantages of using transistors versus fixed resistors.

4. 4.

   True or False: Common source amplifiers typically have a higher voltage gain than common emitter amplifiers.

   • True
   • False

   Hint

   Think about how each configuration behaves based on their components.

5. 5.

   Design a common emitter amplifier circuit using an active load and calculate its voltage gain. What parameters are critical for providing optimal performance?

   Hint

   Focus on the importance of transistor specifications and how they relate to circuit behavior.

6. 6.

   Given a common source amplifier's characteristics, analyze how using an active load would modify its gain compared to a passive load. What would be the expected outcome?

   Hint

   Think about the interaction of load types and how they respond to input signals.