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March 2023 StudentZone Quiz Solution

Product Number: ADALM2000

Question 1:

Enumerate the main elements that are found in the Loudspeaker Impedance Model

Answer 1:

The main elements of the loudspeaker electrical model are:

  • Rdc - dc resistance of the loudspeaker
  • L - voice coil inductance
  • R - mechanical resistance
  • FS - resonant frequency

Question 2:

For the frequency sweep of the loudspeaker circuit in Figure 6, determine the Fs and BW values.

Answer 2:

Consider the plot of the loudspeaker frequency sweep.

 

We can extract from the plot the following:

  • BW ~ 40 Hz
  • Fs ~ 265 Hz