36.1.3. Bode Plot and Corner Frequency

Try these first

1. 1.

   What does a Bode plot represent?

   Hint

   Think about what we plot on the two axes.

2. 2.

   Why do we use decibels to express gain?

   Hint

   Consider how we compress data.

3. 3.

   What happens to the gain beyond the corner frequency?

   • It increases
   • It remains constant
   • It decreases

   Hint

   Refer to the behavior of Bode plots.

4. 4.

   Is a corner frequency where the gain is 0 dB?

   • True
   • False

   Hint

   Recall the definition of corner frequency.

5. 5.

   Design a simple RC filter circuit for audio applications with a target corner frequency of 500 Hz. Calculate the component values required.

   Hint

   Remember the formula involves both R and C.

6. 6.

   Analyze how combining multiple RC circuits in series could affect the overall frequency response and stability beyond simple pole placement.

   Hint

   Consider how each new pole alters the gain curve.