Electronic Devices and Circuits — Summer 2021

Explain p and n semiconductor formation in detail.

With help of voltage doubler circuit, describe the action of voltage multipliers.

Explain Voltage Divider biasing in detail.

Draw a diode curve and label all significant points and areas.

Compare Zener Diode and PN junction Diode.

Draw and explain series and shunt positive clipper with output waveforms.

Draw and explain bridge rectifier circuit with capacitor filter.

Label the three regions of operation on a bipolar junction transistor collector curve.

Differentiate FET and BJT.

Determine the levels of Ic and Vce for the voltage-divider configuration Q Q of Figure.

Draw Ebers-Moll model and π-model of a transistor.

With the help of neat figure, explain the operation of a N-P-Ntransistor.

Explain how the swamped amplifier works and list three of its advantages.

Explain Principal of operation of Photodiode.

Classify the power amplifier based on classes of operation, type of coupling and frequency range.

Explain the working of a transformer coupled class Apower amplifier and show the efficiency of class Atransformer coupled amplifier is 50%. OR1

Explain the effect of coupling and bypass capacitors on the bandwidth.

Explain operation of class B-push pull amplifier with the help of circuit and wave form.

Explain Darlington pair in detail. Also derive its current gain.

Differentiate between current shunt feedback and voltage shunt feedback.

Differentiate Ohmic region and Saturation region of JFET.

Explain the construction and operation of n type JFET.

Compare E MOSFET with D MOSFET.

Explain the JFET application as analog switch.

Explain construction, operation and characteristic of P-channel Enhancement type MOSFET in detail.