STUPIDSID
1(a)
Explain behaviour of op-amp in linear and saturation region with neat graphs.
4 M
1(b)
Explain non-inverting comparator with suitable exmaple.
4 M
1(c)
State various methods to achiece analog to digital conversion.
4 M
1(d)
Explain 78XX series voltage regulator.
4 M
1(e)
Implement y = 3 va ' 5 vb + 7 vc using op-amp, where y is output and va, vb & vc are inputs.
4 M
2(a)
Derive expression for voltage gain of inverting amplifier and hence design the same for voltege gain = 20.
10 M
2(b)
Design a 2nd order KRC low pass filter with a cutoff frequency fo = 1KHz and Q = 5.
10 M
3(a)
Draw the circuit diagram of an inverting type schmitt trigger circuit.
Design such a circuit to meet UTP = +2.5V & LTP = -1V
Assume ± vsat = ± 12V, for an input of 8sinwt, plot the graph of vo and vin.
Design such a circuit to meet UTP = +2.5V & LTP = -1V
Assume ± vsat = ± 12V, for an input of 8sinwt, plot the graph of vo and vin.
10 M
3(b)
Explain working of Wien bridge oscillator and hence design for fo = 5KHz.
10 M
4(a)
Explain R/2R ladder type DAC
10 M
4(b)
Design Mono stable multivibrator using IC 555 to generate output delay of 10 msec.
10 M
5(a)
Design voltage regulator using IC 723 for Vo = 10V and IL = 200mA.
10 M
5(b)
Explain internal diagram of power amplifier LM 380
10 M
Write short notes on
6(a)
Sample and Hold circuit
5 M
6(b)
V-I converter
5 M
6(c)
Applications of IC 555
5 M
6(d)
Switching mode voltage regulator
5 M
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