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Q. Draw and explain an RC integrator, with equations
RC Integrator is a low pass RC circuit in which the output is taken across capacitor. The low pass RC circuit gives considerable gain when low frequency signal is applied. It is because of the high reactance offered by the capacitor at low frequencies. The integrator circuit gives the output proportional to the integral of the input signal.
Voltage across the capacitor Vo = 1/C∫idt
Ie, 1/RC∫Vidt
Vo∝ ∫Vidt
The gain shown by this circuit decreases considerably with increase in frequency. This gives triangular wave to square wave input, cosine wave to sine wave input and a parabolic wave to a triangular wave input.
Q. Explain the action of a pn-junction with bias. Consider both the forward bias and the reverse bias, and use sketches wherever possible.
Q. Input offset voltage of operational amplifier? When both inputs are tied to ground, i.e., both differential-mode and common-mode inputs are zero, the output should be zero.
(a) A universal shift register can shift in both the left-to-right and right-to-left directions, and it has parallel-load capability. Draw a circuit for such a shift register.
Using the LM741operational amplifier build a current amplifier with the voltage gain of |A V | = 300 v/v ± = 20% . Measure all necessary parameters of the amplifier (as per delive
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make the following conversion 1000 Mx to Wb
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2+7
1. Pattern recognition A synchronous sequential machine is to generate 1 on output z after the next clock pulse whenever the bit sequence on input x has exactly two 0’s in the last
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