Within a class-D amplifier driving a speaker, which consequence results when the MOSFET switching frequency nears the speaker's resonant frequency?

💡 Explanation

Increased harmonic distortion occurs because decreased impedance near the resonance frequency dramatically alters the gain via the MOSFET's parasitic capacitance; therefore, the harmonic components expand, introducing nonlinear behavior, rather than reducing EMI, improving transient response or stabilizing the power supply.

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