Virtual Laboratories of Electronics and Communication Engineering

Analog Communication

Subject Code: 491
Expt. No.Mapping with V-labList of Experiments
1Amplitude modulationMeasurement of modulation index of an AM signal.
3AM transmission - envelope detectorMeasurement of distortion of the demodulated output with varying modulation index of an AM signal (for both DSB-SC & SSB).
4Spectra of FM signalsMeasurement of power of different frequency components of a frequency modulated signal & the measurement of the bandwidth.
7Signal-to-noise ratio demonstratorMeasurement of SNR of a RF amplifier.

Analog Electronic Circuits

Subject Code: 492
Expt. No.Mapping with V-labList of Experiments
2i) Half Wave Rectification
ii) Full Wave Rectification
Design and set up the following rectifiers with and without filters and to determine ripple factor and rectifier efficiency: (a) Full Wave Rectifier (b) Bridge Rectifier.
3Studies on BJT CE AmplifierDesign and set up the BJT common emitter amplifier using voltage divider bias with and without feedback and determine the gain- bandwidth product from its frequency response.
6Zener Diode-Voltage RegulatorConduct an experiment on Series Voltage Regulator using Zener diode and power transistor to determine line and load regulation characteristics.
17Inverting and non-inverting amplifiersStudy of basic properties of operational amplifier: inverting and non-inverting amplifiers.
18Differentiator and integrator using op-ampStudy of differentiator and integrator using operational amplifier.

Microprocessor and Microcontroller

Subject Code: 493
Expt. No.Mapping with V-labList of Experiments
7i) Microcontroller interfaced with display devices
ii) Microcontroller interfaced with ADC and DAC
Study of 8051 Microcontroller kit and writing programs as mentioned in S/L3. Write programs to interface of Keyboard, DAC and ADC using the kit.

Control System and Instrumentation Lab

You need to download Scilab to do the following experiments.
Subject Code: 692 (New)
Expt. No.Mapping with V-labList of Experiments
2Transfer Function of a Feedback SystemDetermination of transfer function of a given system from its state model and its vice-versa.
4Root LocusDetermination of root Locus from transfer function and evaluation of system parameters like marginal value of gain, frequency etc. of a given control system.
5i) Nyquist Plot
ii) Bode Plot
Drawing of Nyquist plot and Bode plot from transfer function of a control system and estimation of relative system parameters like gain margin, phase margin etc.
6PID ControllerDesign PI, PD and PID controller for specified system requirements.

Computer Network

Subject Code: 691 (New)
Expt. No.Mapping with V-labList of Experiments
2Fabrication of CablesFamiliarization with Networking cables (CAT5, UTP), Connectors (RJ45, Tconnector), Hubs, Switches.

Digital Signal Processing

Subject Code: 692 (Old)
Expt. No.Mapping with V-labList of Experiments
1Study of sampling theorem, effect of under-sampling.Sampled sinusoidal signal, various sequences and different arithmetic operations.
2Study of convolution: series and parallel system.Convolution of two sequences using graphical methods and using commands verification of the properties of convolution.
5Study of Discrete Fourier Transform (DFT) and its inverseDFTs / IDFTs using matrix multiplication and also using commands.
9i) Study of FIR filter design using window method: Low-pass and high-pass filter.
ii) Study of FIR filter design using window method: Bandpass and Bandstop filter.
FIR filter design using rectangular, Hamming and Blackman windows.