STUPIDSID
Answer any five.
1 (a)
Draw characteristics of SCR, Triac, MOSFET and IGBT.
4 M
1 (b)
Draw connection of an LED and a switch to MSP430.
4 M
1 (c)
Explain basic principle of single phase inverter.
4 M
1 (d)
Enlist characteristics of ideal op-amp.
4 M
1 (e)
Give an example of analog circuit, digital circuit, combinational circuit and sequential logic circuit.
4 M
1 (f)
Draw torque-speed characteristics of DC shunt motor and 3-phase induction motor.
4 M
1 (g)
What do you understand by R-L and R-L-E load?
4 M
2 (a)
Explain in brief functional block diagram of MSP430.
7 M
2 (b)
Draw and explain block diagram of closed loop speed control of DC motor. Also state need of inner current loop.
7 M
2 (c)
Draw and explain any one application circuit of Triac-Diac.
6 M
3 (a)
Explain 555 monostable multivibrator.
7 M
3 (b)
Explain frequency control scheme of 3-phase induction motor with the help of block diagram.
7 M
3 (c)
Write a short note on: Forced turn-off of SCR.
6 M
4 (a)
Draw the circuit diagram of differentiator and integrator; write the output equation of each.
7 M
4 (b)
Enlist triggering methods of SCR and explain any one gate triggering method of SCR.
7 M
4 (c)
What do you understand by a Digital circuit? Elaborate following terms regarding digital circuits:-
i) logic level
ii) noise immunity
iii) propagation delay
iv) power dissipation
v) fan out.
i) logic level
ii) noise immunity
iii) propagation delay
iv) power dissipation
v) fan out.
6 M
5 (a)
Elaborate:- accuracy, resolution and least significant bit regarding 10-bit ADC.
7 M
5 (b)
Write a short note on 'selection of motor and power rating for a pump'.
7 M
5 (c)
Explain asymmetrical semi controlled converter with R load and derive equation of output voltage.
6 M
6 (a)
Compare: BLDC motor, DC and induction motor.
7 M
6 (b)
Compare: Microprocessor and Microcontroller.
7 M
6 (c)
Compare: TTL and CMOS technology.
6 M
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