66.6.5. Characteristics for Increasing Gain

Try these first

1. 1.

   What is the main advantage of using active loads in amplifiers?

   Hint

   Think about what happens when you replace a resistor with a transistor.

2. 2.

   Name one type of amplifier that commonly uses active loads.

   Hint

   Recall the two main types discussed.

3. 3.

   What is the main advantage of using an active load in an amplifier?

   • A: Decreased voltage gain
   • B: Increased voltage gain
   • C: Simplified design

   Hint

   Think about how the load affects gain.

4. 4.

   True or False: Active loads can lead to increased power dissipation in an amplifier circuit.

   • True
   • False

   Hint

   Recall why we use active loads.

5. 5.

   Given a common emitter amplifier setup with a supply voltage of 12V and a quiescent current of 1mA, calculate the maximum theoretical voltage gain with a passively loaded resistor of 1kΩ.

   Hint

   Recall the voltage drop across the load and use the thermal voltage value.

6. 6.

   Discuss the advantages and limitations of using active loads in a common source amplifier compared to passive loads.

   Hint

   Consider challenges in managing quiescent points and real-world applications.