Design Concepts in Basic Electronics — Winter 2023

What is transistor approximation? Explain ideal, second and third approximation for transistor.

Attempt the following: 1. Perform binary multiplication of (1001) and (110). 2. Convert octal number (65) to binary number. 3. Represent decimal number (-23) as signed number using sign bit method.

Briefly explain sum of minterms and product of maxterms.

Explain AND, OR and NOT Gates with their truth tables and one application of each.

Briefly explain forward biasing of PN junction diode.

Attempt the following: 1. What is bulk resistance in diode? 2. Convert decimal number (649) to BCD. 3. What is the value of forward biased voltage of silicon diode with second approximation? 4. What is DC resistance in diode?

Explain emitter bias configuration with application.

Explain working of bridge rectifier in detail.

Simplify the following using Boolean Laws: [(A+BC’)’+D(E+F’)’]’

What are the De Morgan's theorems?

Explain NAND Gate as universal Gate.

What are the pros and cons of capacitor input filter?

What are the applications of clipper circuits? Briefly explain positive and negative clipper circuits.

Design and explain working of three-bit magnitude comparator with logic diagram.

Compare intrinsic semiconductors with extrinsic semiconductors.

What is the use of voltage doubler? Explain half wave voltage doubler with diagram.

Design and explain working of full subtractor with logic diagram.

What are the characteristics of RTL logic family?

Explain working of serial in/parallel out shift register.1

Write a short note on Q-point for transistor.

Derive the equations of IDC, VDC, IRMS, VRMS for full wave rectifier.

Explain working of Asynchronous up-down counter in detail.

Differentiate between combinational circuit and sequential circuit?

Explain V-Icharacteristics PN junction diode with forward bias condition.

What is the use of flip-flop? Give detail explanation of Dflip-flop with logic diagram and wave forms.