GTU BE/B.Tech 2019 Winter Question Papers || Gujarat Technological University
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Subject Code: 3132003
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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- III (New) EXAMINATION — WINTER 2019
Subject Name: Design Concepts in Basic Electronics
Time: 02:30 PM TO 05:00 PM
Date: 30/11/2019
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Total Marks: 70Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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| Q.1 | (a) State and explain De-Morgan’s theorems. | 03 |
| (b) Explain the Combination Clipper Circuits with example. | 04 | |
| (c) Explain with neat diagram Voltage Divider Bias. | 07 | |
| OR | ||
| (a) Show that NAND and NOR are universal gate. | 03 | |
| (b) Explain the load line for diode. | 04 | |
| (c) Explain the Positive Biased Clipper Circuit with output waveform. | 07 | |
| Q.2 | (a) Implement Full Adder using 3 to 8 Decoder. | 03 |
| (b) Make a Half and full wave Voltage Doubler Circuits and explain. | 04 | |
| (c) Design 3- bit up synchronous counter. | 07 | |
| OR | ||
| (a) Define: (1) DC Resistance of diode, (2) Bulk Resistance and (3) PIV. | 03 | |
| (b) Explain the Capacitor input filter with half-wave rectifier. | 04 | |
| (c) Compare in detail RTL, DTL, TTL, ECL and CMOS. | 07 | |
| Q.3 | (a) Draw and Explain the working of clocked RS flip-flop. | 03 |
| (b) Explain the ripple counter. | 04 | |
| (c) Draw the logic diagram and state truth table of 4x1 multiplexer. | 07 | |
| OR | ||
| (a) Explain Master Slave J-K Flip Flop. List the advantages of edge triggered flip flops. | 03 | |
| (b) Comparison between 1’s and 2’s compliments. | 04 | |
| (c) Explain in detail bidirectional shift register with parallel load. | 07 | |
| Q.4 | (a) Explain the operation of different types of shift registers. | 03 |
| (b) Explain the Negative Clamper circuit. | 04 | |
| (c) Write the difference between Half wave and Full wave Rectifier. Drive the equation of Ipc, Vpc, Irms, Vrus, Ripple Factor (y) and PIV for Half-Wave rectifier. | 07 | |
| OR | ||
| (a) What are the factors affecting the stability of Q Points. | 03 | |
| (b) Comparison of Piecewise liner equivalent circuit, Constant Voltage Drop circuit and Ideal equivalent circuit for diode. | 04 | |
| (c) Explain the output Characteristics of CE Configuration for transistor with neat sketch. Also indicate different regions and explain. | 07 |
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