Design Concepts in Basic Electronics — Summer 2022

Write short note on intrinsic and extrinsic semiconductor materials.

Give detail comparison of analog and digital systems.

Explain digital system with block diagram and its functional elements. Also explain different functions of digital system.

Design and explain half adder combinational logic circuit.

Simplify the following function using K-Map method. Also implement the circuit for minimized function using logic gates. F (A, B, C, D) = Π{0,1,2,4,5,6,8,10,12,13,15}

Briefly explain min-terms and max-terms with suitable example.

Reduce the given Boolean Expression to its simplest possible form, compare the truth tables and implement them using minimum number of logic gates. A[B + A’B(B + A’C’)’]

Explain forward bias V-Icharacteristics of PN junction diode.

Prove (A + B)(A + C) = A + BC using Boolean Algebra.

Explain reverse bias V-Icharacteristics of PN junction diode.

Explain different types of gates with their symbols and truth tables used in digital system.

What is the effect of temperature on barrier potential? Explain in detail.

Explain significance of voltage Doubler, Tripler and Quadrupler circuits.

Explain Capacitor Filter for bridge rectifier with circuit diagram and waveforms.

What are the applications of Transistor-Transistor Logic (TTL) circuits?

Write a short note on D Flip-Flop.

Attempt the following questions: 1. Perform binary multiplication of (101) and (111) .22 2. Convert (11011) to Grey code.2 3. Express (-39) as 8-bit binary number using sign bit method.10 4. Convert (F37A) to binary number.16 5. Convert (2469) to BCD using 8421 code.10 6. Convert (1011) to decimal number.2 7. Convert (237) to decimal number.8

Design 1-Bit magnitude comparator.

Explain input and output characteristics of CB configuration of transistor.

Explain series clipper circuit with circuit diagrams and waveforms.

Explain parallel clipper circuit with circuit diagram and waveforms.

Explain positive, negative and biased clamper circuits with circuit diagrams and waveforms.

Explain SERIAL IN/PARALLEL OUT shift register.

Explain 3-bit decoder.

Explain 3-bit Asynchronous Counter in detail.