Q
In bipolar modulation, the carrier is symmetric about zero with amplitude equal to Cm, the PWM output
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A
A. Zero
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B
B. Switches between – 1 / 2 and + 1 / 2
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C
C. Switches between – 1 and + 1
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D
D. Switches between 0 and + 1
Correct Answer:
B. B. Switches between – 1 / 2 and + 1 / 2