Recent questions tagged feed-back-resistor - GO Electrical

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GATE2014-3-22
An operational-amplifier circuit is shown in the figure. $-(\frac{R_2}{R_1})v_i$ $-(1+\frac{R_2}{R_1})v_i$ $(1+\frac{R_2}{R_1})v_i$ +$V_{sat}$ or -$V_{sat}$

asked Feb 12, 2017 in Analog and Digital Electronics by makhdoom ghaya (9.3k points)

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GATE2014-2-49
An oscillator circuit using ideal op-amp and diodes is shown in the figure. The time duration for $+ve$ part of the cycle is $\Delta t_1$ and for $–ve$ part is $\Delta t_2$ . The value of $e^{\frac{\Delta t_1-\Delta t_2}{RC}}$ will be _____________.

asked Feb 12, 2017 in Analog and Digital Electronics by makhdoom ghaya (9.3k points)

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