Power Electronics & Control Engineering — Winter 2018

Compare:Transistor vs SCR

Explain the principle and operation of SCR with two transistor analogy.

Explain working principle and operation of dielectric heating.

Explain the basic principle of operation of induction heating and list the advantages of induction heating.

Explain in detail functioning of leading and trailing tube circuits.

Explain construction and V-Icharacteristics of UJT.

Explain energy storage welding system.

Write a short note on thermocouples and strain guage.

Explain the concept of speed control of DC motor using SCRs.

Draw and explain functional block diagram of microprocessor 8085.

Draw and explain flag register of microprocessor 8085 in detail.

Explain successive-approximation type A/Dconverter and Dual slope A/D converter.

Explain programmable Logic controller with necessary diagrams.

Draw and explain the pin diagram of microprocessor 8085.

Explain ladder diagram and ignitron contactors.

Draw block diagram of PLC and also explain any one application of it.

Explain program counter in detail.What is the function of stack pointer in 8085 microprocessor?