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ANALOG ELECTRONIC LABORATORY Code: ECL203

 

This lab exposes students about transistor as an amplifier and how to measure DC, AC characteristics and frequency response of different type of amplifiers using discrete components. Students use discrete components to assemble circuits temporarily on bread board to analyze circuit using DMM, CRO, function generator and DC supply.

The laboratory is well equipped with CRO-Cathode Ray Oscilloscope (for measuring AC and DC waveforms, amplitude, time period etc), DMM-Digital Multi-meter (for measuring AC and DC current and voltages), FG-Function Generator ( for generating different type of waveforms of different amplitude and frequencies), DC voltage supply of different amplitude and Bread-Board (for making electronic circuits temporarily for performing experiments).

The students are provided with a comprehensive Lab Manual, which is almost self explanatory. All the experiments are well documented with clear circuit diagrams, theory and procedures involved, so that the students are able to perform the experiments with ease and proper understanding.

 

LIST OF EXPERIMENTS

 

1. To study BJT as an amplifier

Scope: This experiment briefs about the application of BJT as an amplifier.

2. To find the Q point , collector current and collector to emitter voltage with and without emitter resistor in a fixed bias circuit.

Scope: This experiment is performed by to study the concepts of fixed basing. The students will locate the Q point on load line and verify it with theoretical value of Q point.

3. To find the Q point, collector current and collector to emitter voltage in a collector to base feedback bias circuit.

Scope: This experiment is performed by to study the concepts of collector to base feedback basing. The students will locate the Q point on lo it load line and verify it with theoretical value of Q point.

4. To find Frequency Response curve of two stage RC coupled transistor amplifier.

Scope: This experiment is performed to obtain the frequency response of RC coupled amplifier and thus to study the effect of cascading on gain of an amplifier.

5. To study Darlington Amplifier.

Scope: This experiment is performed to study Darlington amplifier and find different parameters like input and output impedance when amplifier is connected in such a configuration.

6. To plot the frequency response curve of the series current feedback circuit.

Scope: This experiment is performed to study the feedback circuit in current series topology and obtain the frequency response.

7. To measure the frequency of oscillations in a Wein-Bridge oscillator.

Scope: This experiment is performed to determine the frequency of oscillation in a wein bridge oscillator.

8. To determine resonant frequency of the Hartley oscillator.
Scope: This experiment is performed to determine the frequency of oscillation in a Hartley oscillator.

9. To find the resonant frequency of the Colpitts oscillator.

Scope: This experiment is performed to determine the frequency of oscillation in a colpitts oscillator.

10. To determine the efficiency and distortion in CLASS-B push pull amplifier at audio frequency.

Scope: This experiment is performed To determine the efficiency and distortion in CLASS-B push pull amplifier at audio frequency.

11. To study the Zener Diode as a Voltage Regulator. Scope: This experiment is performed to study the Zener Diode as Voltage Regulator.

12. To measure the quiescent operating point, maximum input signal for undistorted output,value of optimum load and distortion for the maximum output power in single ended power amplifier.

Scope: This experiment is performed to measure the quiescent operating point, maximum input signal for undistorted output, value of optimum load and distortion for the maximum output power in single ended power amplifier.

 

Value Added Experiments

 

13. To measure the operating point collector current and collector to emitter voltage for both stages in two stage RC coupled amplifier, and (ii)measure the voltage gain of the first and second stage with and without connecting second stage.(iii)measure the overall gain of two-stage RC coupled amplifier.

Scope: This experiment is performed to study the RC coupled amplifier and measure its voltage gain.

14. To measure the voltage gain and plot the frequency response of the emitter follower circuit.

Scope: This experiment is to measure the voltage gain and plot the frequency response curve of emitter follower circuit.