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C3807 Pages: 2

B power amplifier and derive its maximum power conversion efficiency.
Explain the working of a two stage RC coupled amplifier with circuit diagram.
Derive the expression for the voltage gain of an opamp based non-inverting
amplifier.

Derive the frequency of oscillation of a RC phase shift oscillator using transistor.
Write short notes on the following:

i) CMRR ii) Slew rate

Explain the operation of Hartley oscillator with a circuit diagram.

PART D
Answer any two full questions, each carries 10 marks

Draw and explain the operation of logarithmic amplifier.

What is the significance of UTP and LTP in Schmitt trigger circuits? Why is it
called as regenerative comparator?

What are the features of instrumentation amplifier? Derive the expression for
output voltage of an instrumentation amplifier.

Draw and explain the operation of a Triangular waveform generator using
opamp

With the help of internal circuit diagram of IC555 explain the operation of a
monostable multivibator.

Design an astable multivibrator using 555 timer to generate an output signal with
frequency 5kHz and 50% duty cycle.

یا ید عاد یھ

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