1
GATE EE 2008
+2
-0.6
A general filter circuit is shown in figure The output of the filter in above is given to the circuit shown in figure The gain $${V_S}$$ frequency characteristic of the $$0/p$$ $$\left( {{V_0}} \right)$$ will be A B C D 2
GATE EE 2008
+2
-0.6
A waveform generator circuit using $$OPAMPs$$ is shown in the figure. It produces a triangular wave at point $$'P'$$ with a peak to peak voltage of $$5V$$ for $${v_1} = 0\,V.$$ If the voltage $${v_1}$$ is made $$+2.5$$ $$V,$$ the voltage waveform at $$'P'$$ will become.

A B C D 3
GATE EE 2007
+2
-0.6
The switch $$'S'$$ is the circuit of the figure is initially closed. It is opened at time $$t=0.$$ You may neglect the zener diode forward voltage drops. What is the behavior of $${V_{OUT}}$$ for $$t > 0$$ A
It makes a transition from $$- 5V$$ to $$+ 5V$$ at $$t=12.98$$$$\mu \sec .$$
B
It makes a transition from $$- 5V$$ to $$+ 5V$$ at $$t=2.57$$$$\mu \sec .$$
C
It makes a transition from $$+ 5V$$ to $$- 5V$$ at $$t=12.98$$$$\mu \sec .$$
D
It makes a transition from $$+ 5V$$ to $$- 5V$$ at $$t=2.57$$$$\mu \sec .$$
4
GATE EE 2007
+2
-0.6
The input signal $${V_{in}}$$ shown in the figure is a $$1$$ $$kHz$$ square wave voltage that alternates between $$+7V$$ and $$-7V$$ with a $$50\%$$ duty cycle. Both transistors have the same current gain, which is large. The circuit delivers power to the load resistor $${R_L}.$$ What is the efficiency of this circuit for the given input? Choose the closest answer. A
$$46\%$$
B
$$55\%$$
C
$$63\%$$
D
$$92\%$$
GATE EE Subjects
Electric Circuits
Electromagnetic Fields
Signals and Systems
Electrical Machines
Engineering Mathematics
General Aptitude
Power System Analysis
Electrical and Electronics Measurement
Analog Electronics
Control Systems
Power Electronics
Digital Electronics
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