An amplitude modulated wave is as shown in the figure.

Question:

An amplitude modulated wave is as shown in the figure. Calculate

(i) the percentage modulation

(ii) peak carrier voltage and

(iii) peak value of information voltage

Solution:

Maximum voltage, Vmax = 100/2 = 50 V

Minimum voltage, Vmin = 20/2 = 10 V

(i) Percentage modulation = 66.67%

(ii) Peak carrier voltage, Vc = 30 V

(iii) Peak value of information voltage = 20 V

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