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AKTU Electronics Engineering Lab (AEC151A / AEC251A) Syllabus PDF – B.Tech 1st Year
Electronics Engineering Lab AEC151A / AEC251A
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Official AKTU syllabus of Electronics Engineering Lab (AEC151A / AEC251A) for B.Tech 1st Year – 1 credits, L-T-P 0-0-2. Read the unit-wise course content, course outcomes, evaluation pattern and recommended books online, or download the PDF.
- Electrical Engineering › 1st Year
- Electrical & Electronics Engineering › 1st Year
- Electrical & Computer Engineering › 1st Year
- Electrical Engineering (WP) › 1st Year
- Electronics Engineering › 1st Year
- Electronics and Communication Engineering › 1st Year
- Electronics and Communication (Advanced Communication Technology) › 1st Year
- Electronics Engineering (VLSI Design and Technology) › 1st Year
- Electronics and Instrumentation Engineering › 1st Year
- Instrumentation and Control Engineering › 1st Year
- Electronic and Computer Engineering › 1st Year
- Computer Science and Engineering › 1st Year
- Computer Science › 1st Year
- Computer Engineering › 1st Year
- Information Technology › 1st Year
- Computer Science and Information Technology › 1st Year
- Computer Science & Technology › 1st Year
- Computer Science and Design › 1st Year
- Computer Science and Engineering (Hindi) › 1st Year
- Computer Science and Engineering (Artificial Intelligence) › 1st Year
- Computer Science and Engineering (Artificial Intelligence & Machine Learning) › 1st Year
- Artificial Intelligence and Machine Learning › 1st Year
- Artificial Intelligence (AI) and Data Science › 1st Year
- Computer Science and Engineering (Data Science) › 1st Year
- Computer Science & Engineering (Cyber Security) › 1st Year
- Computer Science and Engineering (Internet of Things) › 1st Year
- Cyber Security › 1st Year
- Data Science › 1st Year
- Computer Science and Engineering (WP) › 1st Year
Syllabus — Electronics Engineering Lab
Download PDFAEC151A / AEC251A · 1 credits · L-T-P 0-0-2
Course Objectives
- Plot V-I characteristics of diode and Zener; set up rectifier and regulated power supply circuits
- Study BJT and MOSFET as switches; drive a real load (LED, relay, motor)
- Set up and measure inverting, non-inverting, and comparator op-amp circuits
- Verify basic logic gate truth tables and implement a simple combinational circuit
- Explore an emerging application — IoT sensor node or solar cell characteristics
List of Experiments
| Exp. | Theory | Title | Objective / Description with Unit Application |
| 1 | Unit I | Diode V-I Characteristics | Plot forward and reverse V-I characteristics of a silicon diode; identify knee voltage and reverse breakdown. Application: understanding the diode in a phone charger rectifier. |
| 2 | Unit I | Half-Wave and Full-Wave Bridge Rectifier | Set up half-wave and bridge rectifier circuits on breadboard; observe output waveforms on CRO without and with filter capacitor; measure DC output voltage. Application: DC power supply for a microcontroller development board. |
| 3 | Unit I | Zener Diode Voltage Regulator | Set up a Zener regulator circuit; vary input voltage and load; measure regulated output voltage; observe line and load regulation. Application: 5V/3.3V supply regulation for Arduino / Raspberry Pi. |
| 4 | Unit II | BJT as a Switch – LED and Relay Driver | Use an NPN BJT to switch an LED and a relay ON/OFF using a small base current from a signal source; observe saturation and cut-off. Application: microcontroller GPIO driving a relay to control a 230V lamp (home automation). |
| 5 | Unit II | MOSFET as a Switch – PWM Motor Speed Control | Use an N-channel MOSFET to control a small DC motor; apply a PWM signal (from signal generator or function generator) to gate; observe motor speed change. Application: motor speed control in drones, robots, and EV wheel drives. |
| 6 | Unit III | Op-Amp – Inverting and Non-Inverting Amplifier | Set up IC 741 in inverting (gain = – 10) and non-inverting (gain = +11) configurations; apply a 100 mV sinusoidal input; measure output voltage and verify gain. Application: amplifying a small sensor signal (microphone, thermocouple). |
| 7 | Unit III | Op-Amp as Comparator – Automatic Night Lamp | Set up op-amp comparator with an LDR (light sensor) as one input and a reference voltage divider as the other; observe output switching HIGH/LOW with changing light levels; drive an LED via transistor. Application: automatic street light / night lamp controller. |
| 8 | Unit IV | Logic Gate Truth Table Verification | Verify truth tables of AND, OR, NOT, NAND, NOR, and XOR gates using a digital logic trainer (IC 7408, 7432, 7404, 7400, 7402, 7486); verify De Morgan's theorem using NAND and NOR gates. Application: basic building blocks of any digital system — CPU, microcontroller, FPGA. |
| 9 | Unit IV | Half Adder and Full Adder Circuit | Implement half adder using XOR + AND gates; implement full adder using two half adders + OR gate; verify truth table. Application: binary addition in CPU ALU; understanding how a computer adds two numbers. |
| 10 | Unit V | Solar Cell – I-V Characteristics and Maximum Power Point | Measure Voc and Isc of a solar cell; vary load resistor and plot I-V and P- V curves; identify Maximum Power Point (MPP). Application: sizing solar panels for IoT gateway nodes and off-grid sensor stations. |
| 11 | Unit V | IoT Sensor Node – Temperature and Humidity Monitoring (Demo) | Set up an Arduino/NodeMCU with a DHT11/DHT22 temperature and humidity sensor; display readings on serial monitor; (if Wi-Fi available) send data to a free IoT dashboard. Application: smart home weather station, server room environment monitoring, campus IoT node. |
| 12 | Unit I–V | Mini Project / Simulation – Circuit Design on Falstad / Tinkercad | Students design and simulate a chosen circuit (rectifier + Zener supply, transistor relay driver, op-amp amplifier, or logic circuit) on Falstad or Tinkercad; present findings. Application: industry uses EDA tools for every circuit — this is the first step. |
Equipment / Instruments Required
- DC regulated power supply and digital multimeters
- CRO / Digital Storage Oscilloscope
- Signal / Function generator
- Breadboard and component kit (diodes, Zener, BJT NPN, N- MOSFET, IC 741, TTL ICs)
- Digital logic trainer board (ICs 7408, 7432, 7404, 7400, 7402, 7486)
- LDR, relay (5V), LED, small DC motor (hobby grade)
- Solar cell module (small, 0.5–2W)
- Arduino / NodeMCU board + DHT11/DHT22 sensor + USB cable
- Laptop with Falstad Circuit Simulator and Tinkercad access (browser-based, free)
Teaching-Learning Methodology
Each 2-hour session begins with a 10-minute pre-lab discussion linking the experiment to its theory concept and a real product or industry application. Students build circuits on a breadboard, take measurements, and record observations, calculations, result, and inference. Post-lab discussion highlights how the experiment relates to a real device (phone charger, PLC output, biosensor, IoT node).
Simulation (Falstad/Tinkercad) is used alongside hardware wherever possible.
Course Outcomes
| COs | Course Outcome Statement | KL |
|---|---|---|
| CO1 | Plot diode and Zener characteristics and set up a regulated DC power supply circuit | K3 |
| CO2 | Use BJT and MOSFET as switches to drive real loads including relay and motor | K3 |
| CO3 | Set up op-amp inverting, non-inverting, and comparator circuits and verify gain and switching | K3 |
| CO4 | Verify logic gate truth tables and implement half adder and full adder circuits | K3 |
| CO5 | Demonstrate solar cell characteristics and set up a basic IoT sensor monitoring node | K3 |
Evaluation Pattern
| Sr. | Component | Marks | Weightage |
| 1. | Day-to-day performance (Circuit building, Observation, Conduct) | 20 | 20% |
| 2. | Laboratory Record / File | 30 | 30% |
| 3. | End Semester Practical Examination (Experiment + Viva Voce) | 50 | 50% |
Safety Instructions
- Always build the circuit with power OFF; energise only after instructor check
- Do not apply voltage exceeding IC or component ratings — check datasheet
- Handle CRO probes and signal generator outputs carefully
- Do not connect 230V AC load directly — use relay output with instructor supervision only
- Switch off all instruments and tidy the breadboard and bench after every session
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