Q5. [CO1] In fig, given below the input s (t) = m (t), and the amplitude A>> | s (t) | . The two diodes are identical with resistance r ohms in the conducting mode and infinite resistance in the cut-off mode. Show that output e (t) is given by 2R w(t)m(t) r+R e(t) = where w (t) is switching period sign with period 2r/Wc seconds. a. Hence, show that this circuit can be used as DSB-SC modulator. b. How this circuit can be used as a synchronous demodulator for DSB-SC signal.
Q5. [CO1] In fig, given below the input s (t) = m (t), and the amplitude A>> | s (t) | . The two diodes are identical with resistance r ohms in the conducting mode and infinite resistance in the cut-off mode. Show that output e (t) is given by 2R w(t)m(t) r+R e(t) = where w (t) is switching period sign with period 2r/Wc seconds. a. Hence, show that this circuit can be used as DSB-SC modulator. b. How this circuit can be used as a synchronous demodulator for DSB-SC signal.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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![Q5. [CO1] In fig, given below the input s (t) = m (t), and the amplitude A>> | s (t) |. The two
diodes are identical with resistance r ohms in the conducting mode and infinite resistance in the
cut-off mode. Show that output e (t) is given by
e(t) =
2R
w(t)m(t)
r+R
where w (t) is switching period sign with period 2n/Wc seconds.
a. Hence, show that this circuit can be used as DSB-SC modulator.
b. How this circuit can be used as a synchronous demodulator for DSB-SC signal.
slope = 1/r
s (t)
R
A coswt
id
s(t)
e (t)
vd
s (t)
R
w (t)
t.
t
2π-π/2 π2
-2n](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F08774e25-c4d9-4c3c-84fa-86faee5fb336%2F64db48fb-354a-481f-873e-5aed67a5d1cf%2Fyqccvk5_processed.png&w=3840&q=75)
Transcribed Image Text:Q5. [CO1] In fig, given below the input s (t) = m (t), and the amplitude A>> | s (t) |. The two
diodes are identical with resistance r ohms in the conducting mode and infinite resistance in the
cut-off mode. Show that output e (t) is given by
e(t) =
2R
w(t)m(t)
r+R
where w (t) is switching period sign with period 2n/Wc seconds.
a. Hence, show that this circuit can be used as DSB-SC modulator.
b. How this circuit can be used as a synchronous demodulator for DSB-SC signal.
slope = 1/r
s (t)
R
A coswt
id
s(t)
e (t)
vd
s (t)
R
w (t)
t.
t
2π-π/2 π2
-2n
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