1
GATE ECE 1997
Subjective
+5
-0
Consider the circuit given in fig. using an ideal operational Amplifier. GATE ECE 1997 Analog Circuits - Operational Amplifier Question 5 English

The characteristics of the diode are given by the relation I = Is $$\left[ {{e^{{{qV} \over {KT}}}} - 1} \right],$$

Where V is the forward voltage across the diode
(a)Express V0 as a function of Vi assuming Vi> 0.
(b)If R = 100K$$\Omega $$ , Is = 1$$\mu $$A and $${{KT} \over q}\,\, = \,\,25mV$$

2
GATE ECE 1995
Subjective
+5
-0
Shown that the system in Fig. is a double integrator. In other words, prove that the transfer gain is given by $${{{V_0}\left( s \right)} \over {{V_i}\left( s \right)}} = {1 \over {{{\left( {CRs} \right)}^2}}},$$ assume ideal OP -AMP GATE ECE 1995 Analog Circuits - Operational Amplifier Question 6 English
3
GATE ECE 1994
Subjective
+5
-0
Find the output voltage of the following circuit assuming ideal op-amp behavior. GATE ECE 1994 Analog Circuits - Operational Amplifier Question 7 English
4
GATE ECE 1993
Subjective
+5
-0
Find the output voltage, V0 in the following circuit assuming that the Op-Amps are ideal. GATE ECE 1993 Analog Circuits - Operational Amplifier Question 8 English
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