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SE - EC-Question Bank - END SEM

The document is a question bank for the End Sem Examination on Electronics Circuits scheduled for December 9, 2024. It includes various questions covering topics such as adjustable voltage regulators, operational amplifiers, current mirrors, and digital-to-analog converters. Each question requires detailed explanations, diagrams, and calculations related to electronic circuit design and analysis.

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urmilapanchal302
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64 views1 page

SE - EC-Question Bank - END SEM

The document is a question bank for the End Sem Examination on Electronics Circuits scheduled for December 9, 2024. It includes various questions covering topics such as adjustable voltage regulators, operational amplifiers, current mirrors, and digital-to-analog converters. Each question requires detailed explanations, diagrams, and calculations related to electronic circuit design and analysis.

Uploaded by

urmilapanchal302
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Question bank for End Sem Examination on 9th Dec 2024

Subject: Electronics Circuits

Q.1 Design and adjustable voltage regulator using LM 317 for output voltage from 10 to 20 V and draw the
typical connection diagram. Assume: R1 = 240 Ω and Iadj.= 100 μA
2 Explain the working of current boosting with necessary diagram.
3 Draw the detailed block diagram of SMPS and explain its Operation
4 Draw and explain block diagram of adjustable positive three terminal voltage regulator.
5 Determine the range over which the output voltage can be
varied in LM317 voltage regulator if values of R1 = 240 Ω
and R2 is taken as 5 kΩ potentiometer. Assume Iadj = 100 μA. Draw the typical connection diagram.
6 Explain low dropout voltage regulator.
7 Define Opamp. Draw and explain basic building blocks of an OPAMP
8 Explain current mirror circuit
9 Find the Q point, Ad, Ri and Ro for a Dual input Balanced output differential amplifier with RC=2,2KΩ RE=
65KΩ. Supply voltage used is ±15V.
10 For the inverting amplifier R1=470ohms, Rf=4.7Kohms assume that opamp is 741 having the specifications
A=200,000 Ri= 2MΩ, Ro= 75Ω fo= 5Hz. Calculate Avf, Rif, Rof and bandwidth with feedback
11 Explain level shifting stage of OPAMP in detail
12 Define following Opamp parameters and give their significance 1.Input offset volage 2.Input Bias current 3.
Input offset current 4. slew rate 5. CMRR
13 Draw and inverting summing amplifier with three inputs and derive expression for its output voltage
Vo= -(Va+Vb+Vc)
14 Design a practical Integrator to integrate an input signal at 5KHz
15 Draw circuit diagram of three Opamp Instrumentation amplifier and write its output equation.
16 Draw the circuit diagram of Practical Differentiator with input, output waveforms and frequency response
and explain its operation.
17 Design an inverting Schmitt Trigger circuit whose VUT and VLT are ±5V. Draw input and output
waveforms. Assume op-amp saturates at ±13.5V.
18 Explain square wave generator using OPAMP.
19 Explain grounded load V-I converter using OPAMP
20 An 8 bit DAC has a resolution of 10 mV / bit. find the analog output voltage for the following digital inputs
i. I) 10001010 II) 000100001
21 Explain applications of PLL.
22 Compare the three ADC techniques. Explain the operation of flash type ADC with neat block diagram

23 For a PLL 565 the free running frequency is 2.5 KHz. +VCC=+10V, VEE= - 10V.if capacitor C2 is 10uF
find the lock range and capture range also draw detailed circuit diagram with all designed values.
24 Draw the circuit diagram of voltage mode R- 2R ladder digital to analog converter (DAC) and explain its
working and state its advantages.

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