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EXERCISE : Q26) Figure below shows a circuit to generate Amplitude Modulation (AM) signal at a transmitter. A modulating signal, Vm(t) in the form of cosine wave with maximum amplitude of 3V and signal period of 2ms is supplied at the input of balanced modulator. Given that the radian frequency of local oscillator that is used to generate the carrier signal is 15000x rad/s. If the required modulation index of the AM signal is 0.75; (i) Determine the amplitude of the carrier signal, E. (ii) Determine the complete mathematical expression of the signals at Point A and Point В. Balanced Adder B Modulator A V m(t) + E W. = 15 000t rad/s

EXERCISE : Q26) Figure below shows a circuit to generate Amplitude Modulation (AM) signal at a transmitter. A modulating signal, Vm(t) in the form of cosine wave with maximum amplitude of 3V and signal period of 2ms is supplied at the input of balanced modulator. Given that the radian frequency of local oscillator that is used to generate the carrier signal is 15000x rad/s. If the required modulation index of the AM signal is 0.75; (i) Determine the amplitude of the carrier signal, E. (ii) Determine the complete mathematical expression of the signals at Point A and Point В. Balanced Adder B Modulator A V m(t) + E W. = 15 000t rad/s

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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EXERCISE : Q26) Figure below shows a circuit to generate Amplitude Modulation (AM) signal at a transmitter. A modulating signal, Vm(t) in the form of cosine wave with maximum amplitude of 3V and signal period of 2ms is supplied at the input of balanced modulator. Given that the radian frequency of local oscillator that is used to generate the carrier signal is 15000r rad/s. If the required modulation index of the AM signal is 0.75; (i) Determine the amplitude of the carrier signal, E.. (ii) Determine the complete mathematical expression of the signals at Point A and Point B. Balanced Modulator Adder A V m(t) + E. W. = 15 000t rad/s B.
Transcribed Image Text:EXERCISE : Q26) Figure below shows a circuit to generate Amplitude Modulation (AM) signal at a transmitter. A modulating signal, Vm(t) in the form of cosine wave with maximum amplitude of 3V and signal period of 2ms is supplied at the input of balanced modulator. Given that the radian frequency of local oscillator that is used to generate the carrier signal is 15000r rad/s. If the required modulation index of the AM signal is 0.75; (i) Determine the amplitude of the carrier signal, E.. (ii) Determine the complete mathematical expression of the signals at Point A and Point B. Balanced Modulator Adder A V m(t) + E. W. = 15 000t rad/s B.
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Pulse Analog Modulation (Pulse Amplitude Modulation [PAM], Pulse Width Modulation [PWM], Pulse Position Modulation [PPM])
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