A conventional amplitude modulator (AM), where m(t) is the analogue message, VDC is an offset voltage and c(t) is the carrier signal. Let m(t) = 5cos(2a104t), Vpc = 10V and the carrier frequency is fc = 10°HZ; 1) Draw the AM modulator circuit used to generate this AM signal. 2) Determine the equation of amplitude modulator, VAM (t), at the output of this modulator. 3) Sketch VAM(t) at the output of the modulator in the time domain. 4) Draw the frequency spectrum of the signal VAM (t). 5) Find modulation depth, m, also comment on the type of modulation. 6) Compute power of side band and carrier signal. 7) Calculate the efficiency of this AM modulator

A conventional amplitude modulator (AM), where m(t) is the analogue message, VDC is an offset voltage and c(t) is the carrier signal. Let m(t) = 5cos(2a104t), Vpc = 10V and the carrier frequency is fc = 10°HZ; 1) Draw the AM modulator circuit used to generate this AM signal. 2) Determine the equation of amplitude modulator, VAM (t), at the output of this modulator. 3) Sketch VAM(t) at the output of the modulator in the time domain. 4) Draw the frequency spectrum of the signal VAM (t). 5) Find modulation depth, m, also comment on the type of modulation. 6) Compute power of side band and carrier signal. 7) Calculate the efficiency of this AM modulator

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

Does a PCM signal have a smaller bandwidth? Why or Why not?
A Phase Modulator has a phase deviation constant, Kp = 35°/V. The carrier signal is ec = 8 cos2n(800k)t, volts and the modulating signal is em = 5 sin2r(2000)t, volts. a. What is the equation of the PM signal? b. What is the maximum phase deviation? c. what is the amount of deviation in the carrier phase angle at t = 160µs?
A carrier signal given by 10cos27Tx108t volt is FM modulated by single tone message 4cos2Tx103t volt if the modulation constant is 1000 Hz/Volt a) Compute max. frequency deviation and deviation ratio. b) Write the equation of modulated wave. c) Sketch the spectrum. d) Calculate sidebands carrier and total power
100 MHz carrier wave has a peak voltage of 5 volts. The carrier is frequency modulated (FM) by a sinusoidal modulating signal or waveform of frequency 2 kHz such that the frequency deviation Af is 75 kHz. The modulated waveform passes through zero and is increasing at t= 0. Determine the expression for the modulated carrier waveform.
An AM signal is provided below. The carrier frequency is 500 Hz, and the modulating signal is a single-tone sinusoidal signal. The x-axis is in time while the y-axis is the amplitude of the AM signal. Answer the following questions with appropriate solutions if applicable. Determine the type of AM signal in the figure. Determine the frequency of the message signal in Hz. Determine the peak voltage level of the carrier in V. Determine the peak voltage level of the modulating signal in V. Determine the modulating index. Determine the power of the unmodulated carrier in W. Assume the load resistance to be 1-ohm. Determine the power of sidebands in W.
In an AM signal with peak amplitude of 400 volts and a peak modulating voltage of 100 volts, what is the modulation factor? a.0.33 b.0.6 c.0.5 d.0.55
2. Write an OCTAVE program to plot the signal given below. P- Pmax Sin(21Ift); where Pmax= 10 MW, -60 Hz. %3D Find out time period and verify it with graph. Assume necessary data.
I need the answer as soon as possible
If the amplitude of the modulation signal voltage was given to be -4v and +4v and carrier amplitude also given to be -22v and +22v, by suitable waveform diagram determine the Am modulated output. Remember to provide all necessary wave forms in practical terms.
Obtaining broadband FM signal from narrowband frequency modulated (FM) signal is shown below. The narrowband FM signal has a maximum frequency deviation of 100 Hz. The frequency of the local oscillator is f0=100 kHz. Obtaining broadband FM signal from narrowband frequency modulated (FM) signal is shown below. The narrowband FM signal has a maximum frequency deviation of 100 Hz. The frequency of the local oscillator is f0=100 kHz.Since the broadband FM signal has a carrier frequency of fc=80 MHz, find the N value.