6.4.1. Amplifiers

Try these first

1. 1.

   What is the primary purpose of an amplifier?

   Hint

   Think about what happens when we amplify sound.

2. 2.

   Name one configuration of MOSFET amplifiers.

   Hint

   Recall the types we just discussed.

3. 3.

   What does a common-source amplifier primarily provide?

   • Low noise
   • High voltage gain
   • Impedance matching

   Hint

   Think about which function makes amplifiers useful.

4. 4.

   True or False: Common-drain amplifiers are used primarily for high voltage gain.

   • True
   • False

   Hint

   Consider the main function of the common-drain configuration.

5. 5.

   Design a circuit diagram for a common-source amplifier and label all components. Explain how you would ensure it operates effectively.

   Hint

   Draw the circuit first, and then consider how each component affects performance.

6. 6.

   If you have an audio system with a noisy signal, which amplifier configuration would you choose and why? Provide a detailed explanation.

   Hint

   Consider what makes noise problematic in audio systems.