What is the role of the low- pass filter in a class D amplifier?
A)Remove hum
B)Prevent oscillation
C)Remove the modulating frequency and harmonics
D)Limit amplifier frequency response

Question

Quizplus · Accepted Answer

The low-pass filter in a class D amplifier is used to remove the modulating frequency and its harmonics, effectively smoothing the pulse-width modulated (PWM) signal back into an analog audio signal.

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