A fixed frequency signal in which the percentage of ON time can be varied is known as:
A) sine wave
B) pulse width modulation
C) frequency modulation
D) 3-Phase AC

Question

Quizplus · Accepted Answer

Pulse Width Modulation (PWM) is a technique where the width of a pulse is varied while keeping the frequency constant, effectively changing the percentage of time the signal is ON versus OFF. This allows for control over the amount of power delivered to a device without changing the signal's frequency.

A Fixed Frequency Signal in Which the Percentage of ON Time