7. For a clamper circuit input and output is related by the figure given below. Design the clamper circuit which takes the input Vin and produces the output Vout. (5) 2V+V, V Vout 2V Vin -V

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7. For a clamper circuit input and output is related by the figure given below. Design the clamper circuit
which takes the input Vin and produces the output Vout.
(5)
2V+V,
V
Vout
2V
Vin
-V
8. For the circuit shown in figure below draw the voltage wave shape at the point A, B, C, D. Assume
transformer having turns ratio of 4:1 and input voltage V1 = 100 Sin(377t)
(5)
TR1
B
V1
100mH
VSINE
VA=10
FREQ-50
C1
C2
R1
10uf
10u
10K
Transcribed Image Text:7. For a clamper circuit input and output is related by the figure given below. Design the clamper circuit which takes the input Vin and produces the output Vout. (5) 2V+V, V Vout 2V Vin -V 8. For the circuit shown in figure below draw the voltage wave shape at the point A, B, C, D. Assume transformer having turns ratio of 4:1 and input voltage V1 = 100 Sin(377t) (5) TR1 B V1 100mH VSINE VA=10 FREQ-50 C1 C2 R1 10uf 10u 10K
1. Fill in the gaps with appropriate words:
(5x1=5)
A. If the peak input voltage of a half wave rectifier is 28V then the diode used should have PIV
rating of at least....
B. To prevent a DC return between source and load, it is necessary to use... .
.between
source and load.
C. Common emitter transistor configuration has best
D. In the breakdown region, a Zener diode behaves like a
E. Introducing a resistor in the emitter of a common emitter amplifier stabilizes the de operating
point against changes in..
..gain.
....... Source.
2. Answer the following question in short:
(5x2=10)
A. Why 180 degree phase shift occur in CE configuration?
B. Draw the input characteristics of CE configuration and explain the effect of VcE on it.
C. A power supply A delivers 10 V de with a ripple of 0.5 V r.m.s. while the power supply B
delivers 25 V de with a ripple of 1 mV r.m.s. Which is better power supply?
D. The applied input A.C. power to a half-wave rectifier is 100 watts. The D.C. output power
obtained is 40 watts. What is the value of rectification and power efficiency?
E. How is CRO superior to ordinary measuring instruments?
4. Draw the frequency response curve of CE amplifier. Why the gain of CE amplifier reduces at very high
and low frequencies? If the input voltage of CE amplifier is 40mV and the output voltage is 5V
determine the voltage gain in db.
(5)
5. Plot the voltage waveform across the system for the applied signal vị. Assume the system has very
high input resistance so that the Zener diode is on. Also assume Si diode to be ideal.
(5)
60 V
V,
20 V
System
Si
-60 V
6. Using simplified diode model draw the output VoUT for the figure given below, take VIN as a sinusoidal
input of peak voltage of Vp.
R:
(5)
Transcribed Image Text:1. Fill in the gaps with appropriate words: (5x1=5) A. If the peak input voltage of a half wave rectifier is 28V then the diode used should have PIV rating of at least.... B. To prevent a DC return between source and load, it is necessary to use... . .between source and load. C. Common emitter transistor configuration has best D. In the breakdown region, a Zener diode behaves like a E. Introducing a resistor in the emitter of a common emitter amplifier stabilizes the de operating point against changes in.. ..gain. ....... Source. 2. Answer the following question in short: (5x2=10) A. Why 180 degree phase shift occur in CE configuration? B. Draw the input characteristics of CE configuration and explain the effect of VcE on it. C. A power supply A delivers 10 V de with a ripple of 0.5 V r.m.s. while the power supply B delivers 25 V de with a ripple of 1 mV r.m.s. Which is better power supply? D. The applied input A.C. power to a half-wave rectifier is 100 watts. The D.C. output power obtained is 40 watts. What is the value of rectification and power efficiency? E. How is CRO superior to ordinary measuring instruments? 4. Draw the frequency response curve of CE amplifier. Why the gain of CE amplifier reduces at very high and low frequencies? If the input voltage of CE amplifier is 40mV and the output voltage is 5V determine the voltage gain in db. (5) 5. Plot the voltage waveform across the system for the applied signal vị. Assume the system has very high input resistance so that the Zener diode is on. Also assume Si diode to be ideal. (5) 60 V V, 20 V System Si -60 V 6. Using simplified diode model draw the output VoUT for the figure given below, take VIN as a sinusoidal input of peak voltage of Vp. R: (5)
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