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Oscillator Circuits

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Engineering
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
Q1)
Ans
i. 
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 !
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
!#$%&
ii. '()*+,-#.-"/0
)10'2
Q2)3456''
Ans ('
4#71

'2856
"24
5971'4"
'2%59"*5
9:2
Q3)8#
a. ;95)1<14

b. ;9=3>5
/"49
Ans
"?)@5
)@5$&

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Oscillator Circuits Q1) List the general requirements for oscillation? Ans i. For any feedback circuit the transfer function is Vout/Vin =A/1+A? For oscillations, system should be unstable so, A?= -1 (Barkhausen Criterion) ii. All the oscillator circuits are composed of TLV247X OP-AMP, 5% resistors and 20% capacitors. Q2) How does an RC combination affect the phase plot of an oscillator? Ans The phase shift determines the oscillating frequency and the oscillator oscillates only on that frequency w ...
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