UNIVERSITY OF WEST ATTICA
SCHOOL OF ENGINEERING
DEPARTMENT OF COMPUTER ENGINEERING AND INFORMATICS
Electronics
Vasileios Evangelos Athanasiou
Student ID: 19390005
Supervisor: Eleni Tsalera, Laboratory Teaching Staff
Co-supervisor: Michalis Diamantopoulos, Lecturer in Applications
Athens, December 2022
The project investigates multiple rectification techniques through:
- Theoretical analysis
- Computer simulation using Multisim
- Experimental laboratory validation
These approaches ensure a complete understanding of rectifier operation and real-world behavior.
| Section | Folder / File | Description |
|---|---|---|
| 1 | assign/ |
Assignment material |
| 1.1 | assign/Exercise-5th-Rectification.pdf |
Assignment description (English) |
| 1.2 | assign/Άσκηση-5η-Ανόρθωση.pdf |
Assignment description (Greek) |
| 2 | componentss/ |
Lab components and equipment images |
| 3 | docs/ |
Theoretical documentation |
| 3.1 | docs/Rectification.pdf |
Theory (English) |
| 3.2 | docs/Ανόρθωση.pdf |
Theory (Greek) |
| 4 | lab1b/ |
Lab 1b: Diode conducts experiment images and Multisim file |
| 5 | lab2a/ |
Lab 2a: Diode conducts analysis images, graphs, and Multisim file |
| 6 | lab2b/ |
Lab 2b: Diode not conducts experiment images, graphs, and Multisim file |
| 7 | lab3b/ |
Lab 3b: Bridge and double rectification experiments, images, graphs, Multisim files |
| 8 | photos-in-lab/ |
Lab photos and equipment in action |
| 9 | questions/ |
Questions related to the lab |
| 10 | README.md |
Repository overview and instructions |
- Mathematical analysis of half-wave rectification
- Multisim simulation of the circuit
- Breadboard implementation using:
- 4.7 kΩ resistor
- Silicon diode
- Detailed examination of diode-switch behavior
- Analysis of conduction and cutoff states during input signal cycles
- Design and implementation of full-wave rectification
- Use of a diode bridge to utilize both half-cycles of the input waveform
- Comparison with single rectification in terms of output stability and efficiency
-
Power Supply:
- DC Power Supply
- Analog & Digital Training System (M21-7000A)
-
Measurement Tools:
- Oscilloscope: HAMEG HM203-5 / HM303-6
- Digital Multimeter Bench: MCP MT8045
-
Components:
- Breadboard
- Silicon diodes
- 4.7 kΩ resistors
For a simple resistive rectification circuit with an 8 Vp-p input signal:
- Maximum output voltage (Vmax) ≈ 3.4 V
- Average output voltage (Vμ) ≈ 1.3 V
These results closely match theoretical expectations when diode voltage drops are considered.
- During the positive half-cycle, the diode is forward-biased, allowing current flow and producing a sinusoidal output.
- During the negative half-cycle, the diode is reverse-biased, resulting in zero output voltage.
This confirms correct half-wave rectification behavior.
Rectification Circuits — Electronics (UNIWA)
This guide describes how to install, set up, and use the Rectification laboratory project.
The repository contains assignment instructions, theoretical analysis, Multisim simulations, graphs, and experimental lab results related to half-wave and full-wave (bridge) rectification.
Before using this project, ensure the following requirements are met.
- NI Multisim 14 or newer
- Required for:
- Opening and running rectifier circuit simulations
- Observing rectified waveforms
- Measuring peak, average, and ripple voltages
Used in folders:
lab1b/lab2a/lab2b/lab3b/
- Any modern PDF reader (Adobe Reader, browser-based viewer, etc.)
- Required to open:
- Assignment instructions
- Theoretical documentation (English & Greek)
- Any standard image viewer
- Required for viewing:
- Lab photos
- Waveform graphs
- Multisim screenshots (
.pngfiles)
Required only if you intend to reproduce the experiments physically in a laboratory.
- Analog & Digital Training System: M21-7000A
- DC Power Supply
- Oscilloscope: HAMEG HM203-5 or HM303-6
- Digital Multimeter: MCP MT8045
- Electronic Components
- Silicon diodes
- Resistors: 4.7 kΩ
- Breadboard
Hardware is not required for theoretical study or Multisim simulations.
git clone https://github.com/Electronics-aka-Uniwa/Rectification.git
cd RectificationOpen the files in the docs/ directory:
- English:
Rectification.pdf - Greek:
Ανόρθωση.pdf
These documents cover:
- Half-wave rectification
- Full-wave (bridge) rectification
- Diode conduction and cutoff
- Voltage drop and efficiency considerations
Navigate to the assign/ folder and open:
- English:
Exercise-5th-Rectification.pdf - Greek: Άσκηση-5η-Ανόρθωση.pdf
These files define:
- Required circuits
- Measurement procedures
- Analysis questions and expected results
- Open NI Multisim.
- Navigate to:
lab1b/- Open the provided Multisim file.
- Run the simulation.
- Observe:
- Half-wave rectified output
- Diode conduction during positive half-cycles
- Open Multisim.
- Navigate to:
lab2a/ (diode conducts)
lab2b/ (diode does not conduct)- Open and run the circuit files.
- Observe:
- Conduction and cutoff regions
- Output waveform differences
- Open Multisim.
- Navigate to:
lab3b/- Open the bridge rectifier project files.
- Run the simulation.
- Observe:
- Full-wave rectified output
- Improved output stability compared to half-wave rectification
- Graphs & Measurements
- Found in
lab2a/,lab2b/, andlab3b/
- Found in
- Multisim Screenshots
- Included in the corresponding lab folders
- Laboratory Photos
photos-in-lab/
These materials document the comparison between:
- Theoretical calculations
- Simulation results
- Experimental measurements