20.1.6. Small Signal Equivalent Circuit and Model

Try these first

1. 1.

   What is the primary purpose of linearization in circuit analysis?

   Hint

   Think about how linear approximations can help us.

2. 2.

   Identify what Q-point refers to in circuit analysis.

   Hint

   Consider it the center of operation for the circuit.

3. 3.

   What is the purpose of the small signal equivalent circuit?

   • To analyze large variations
   • To simplify analysis of small variations
   • To ignore DC components

   Hint

   Think about the context of small vs. large changes.

4. 4.

   The Q-point in a circuit is established at what condition?

   • True
   • False

   Hint

   Consider what Q-point stands for.

5. 5.

   Design a small signal equivalent circuit for a specific MOSFET configuration. Describe the steps taken in your design.

   Hint

   Start by determining the DC operating point parameters.

6. 6.

   Given a non-linear transfer characteristic curve, identify the Q-point and explain how you would linearize the curve.

   Hint

   Focus on sections of the curve that appear straight.