32.1.5. Amplifier Analysis

Try these first

1. 1.

   What does a common source amplifier primarily amplify?

   Hint

   Think about the input and output types.

2. 2.

   Why is biasing important in an amplifier?

   Hint

   Consider what happens without it.

3. 3.

   What is the main function of a common source amplifier?

   • It amplifies current.
   • It amplifies voltage.
   • It acts as a power switch.

   Hint

   Think about the type of signals at input and output.

4. 4.

   True or False: The biasing in a common source amplifier requires a current source.

   • True
   • False

   Hint

   Recall the role of the gate voltage in biasing.

5. 5.

   Design a common source amplifier circuit with specified parameters, ensuring it remains in the saturation region.

   Hint

   Use the square law relationship to find necessary voltages.

6. 6.

   Given a voltage signal input to the gate, calculate the output current and predict if the amplifier is functioning as intended.

   Hint

   Always consider AC and DC contributions to accurately predict output.