Diode Circuits and Applications · Analog Electronics · GATE EE

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Marks 1

GATE EE 2022
For the circuit shown below with ideal diodes, the output will be ...
GATE EE 2017 Set 1
For the circuit shown in the figure below, assume that diodes $${D_1},\,{D_2}$$ and $${D_3}$$ are ideal. The $$DC$$ components of voltages $${v_1}$$...
GATE EE 2015 Set 2
In the following circuit, the input voltage $${V_{in}}$$ is $$100\sin \left( {100\pi t} \right).$$ For $$100\pi RC = 50,$$ the average voltage across ...
GATE EE 2014 Set 2
The sinusoidal ac source in the figure has an rms value of $${{20} \over {\sqrt 2 }}\,V.$$ Considering all possible values of $${R_L},\,\,$$ the minim...
GATE EE 2014 Set 1
The figure shows the circuit of a rectifier fed from a 230 V (rms), 50Hz sinusoidal voltage source. If we want to replace the current source with a re...
GATE EE 2012
The $$i$$-v characteristics of the diode in the circuit given below are $$$i = \left\{ {\matrix{ {{{v - 0.7} \over {500}}A,} & {v \ge 0.7\,V} ...
GATE EE 2010
Assuming that the diodes an ideal in the given circuit, the voltage $${V_0}$$ is ...
GATE EE 2009
The following circuit has a voltage source $${V_s}$$ as shown in the graph. The current through the circuit is also shown The element connected...
GATE EE 2008
The equivalent circuits of a diode, during forward and reverse biased conditions are shown in figure. (a) (b) If such diodes are used in the clipp...
GATE EE 2006
What are the states of the three ideal diodes of the circuit shown in figure? ...
GATE EE 2005
Assume that $${D_1}$$ and $${D_2}$$ in figure are ideal diodes the value of current $${I_s}$$ is ...
GATE EE 2004
The current through the zener diode in the given circuit is ...
GATE EE 2002
The cut in voltage of both Zener diode $${D_z}$$ and diode $$D$$ shown in Figure is $$0.7$$ $$V,$$ while break down voltage of the zener is $$3.3$$ $$...
GATE EE 2002
The forward resistance of the diode shown in figure is $$5\Omega $$ and the remaining parameters are same as those of ideal diode. The $$DC$$ componen...
GATE EE 1999
As temperature is increased, the voltage across a diode carrying a constant current.
GATE EE 1999
The colour code of a $$1k\Omega $$ resistance is
GATE EE 1999
The mobility of an electron in a conductor expressed in terms of
GATE EE 1992
In the following circuit the $$5$$ $$V$$ zener diode requires a minimum current of $$10$$ $$mA.$$ For obtaining a regulated output of $$5V,$$ the maxi...

Marks 2

GATE EE 2014 Set 2
Assuming the diodes to be ideal in the figure, for the output to be clipped, the input voltage $${V_i}$$ must be outside the range ...
GATE EE 2013
In the circuit shown below, the knee current of the ideal Zener diode is $$10$$ $$mA.$$ To maintain $$5 V$$ across $${R_L}$$, the minimum value of $${...
GATE EE 2013
A voltage $$1000\sin \omega t$$ Volts is applied across $$YZ.$$ Assuming ideal diodes, the voltage measured across $$WX$$ in Volts is ...
GATE EE 2011
A clipper Circuit is shown below Assuming forward voltage drops of the diodes to be $$0.7V,$$ the input-output transfer characteristics of the circ...
GATE EE 2008
In the voltage doubler circuit shown in figure, the switch $$' S '$$ is closed at $$t=0$$. Assuming diodes $${D_1}$$ & $${D_2}$$ to be ideal, load...
GATE EE 2006
Assuming the diodes $${D_1}$$ and $${D_2}$$ of the circuit shown in the figure to be ideal ones, the transfer characteristics of the circuit will be ...
GATE EE 2004
Assuming that the diodes are ideal in figure the current in the diode $${D_1}$$ is ...
GATE EE 2003
A voltage signal $$\,10\,\,\sin \,\omega t\,\,$$ is applied to the circuit with ideal diodes, as shown in figure. The maximum and minimum values of th...
GATE EE 2002
A diode whose terminal characteristics are related as $${i_D} = {{\rm I}_S}\,{e^{{V \over {{V_T}}}}},\,$$ where $${{\rm I}_S}$$ is the reverse saturat...
GATE EE 2002
In the single phase diode bridge rectifier shown in the figure, the load resistor is $$R = 50\,\Omega .$$ The source voltage is $$V=200$$ $$sin$$ $$\o...
GATE EE 1991
Figure shows as electronic voltage regulator the zener diode may be assumed to require a minimum current of $$25$$ $$mA$$ for satisfactory operations....

Marks 5

GATE EE 1992
In the circuit shown in figure calculate and sketch the wave form of current $$'i'$$ over one period of the i/p voltages. Assume the diodes to be idea...
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