UNIVERSITY OF WEST ATTICA
SCHOOL OF ENGINEERING
DEPARTMENT OF COMPUTER ENGINEERING AND INFORMATICS
University of West Attica · Department of Computer Engineering and Informatics
Electronics
Vasileios Evangelos Athanasiou
Student ID: 19390005
Supervision
Supervisor: Panagiotis Giannakopoulos, Professor
Supervisor: Ioannis Amorginos, Applications Lecturer
Co-supervisor: Eleni Tsalera, Academic Scholar
Co-supervisor: Michalis Diamantopoulos, Applications Lecturer
Athens, November 2022
This project was completed for the Department of Information and Computer Engineering at the University of West Attica (UNIWA). It examines the electrical characteristics and operating behavior of silicon crystal diodes and Zener diodes under different biasing conditions.
The analysis is conducted through:
- Theoretical calculations
- Software simulations
- Experimental laboratory measurements
| Section | Folder / File | Description |
|---|---|---|
| 1 | assign/ |
Assignment material |
| 1.1 | assign/Exercise-3rd-Diode.pdf |
Assignment description (English) |
| 1.2 | assign/Άσκηση-3η-Δίοδος.pdf |
Assignment description (Greek) |
| 2 | components/ |
Lab components and equipment images |
| 3 | diode/ForwardDiode/ForwardDiodeGe/ |
Forward-biased Germanium diode experiments |
| 3.1 | diode/ForwardDiode/ForwardDiodeSi/ |
Forward-biased Silicon diode experiments |
| 3.2 | diode/Graphs/ |
Graphical results of diode experiments |
| 3.3 | diode/Lab5/ |
Lab 5 experimental data and drawings |
| 3.4 | diode/NonForwardDiode/NonForwardDiodeGe/ |
Reverse-biased Germanium diode experiments |
| 3.5 | diode/NonForwardDiode/NonForwardDiodeSi/ |
Reverse-biased Silicon diode experiments |
| 3.6 | diode/Q5/ |
Question 5 experiments and results |
| 3.7 | diode/Q6/ |
Question 6 experiments and results |
| 4 | docs/ |
Theoretical documentation |
| 4.1 | docs/Diode.pdf |
Diode theory (English) |
| 4.2 | docs/Δίοδος.pdf |
Diode theory (Greek) |
| 5 | zener/ForwardZener/ |
Forward-biased Zener diode experiments |
| 5.1 | zener/Graphs/ |
Graphical results for Zener diode |
| 5.2 | zener/NonForwardZener/ |
Reverse-biased Zener diode experiments |
| 5.3 | zener/Q4.vsdx |
Question 4 drawings and diagrams |
| 6 | README.md |
Project documentation |
| 7 | INSTALL.md |
Usage instructions |
The project is divided into two main sections:
A detailed study of a silicon crystal diode, including:
-
Forward Bias
- Theoretical analysis
- Simulation using Multisim
- Experimental laboratory measurements
-
Inverse Bias
- Examination of reverse-biased diode behavior
-
Key Findings
- Observation of the barrier potential stabilizing at approximately 0.6 V
- Experimental verification of Ohm’s Law and Kirchhoff’s Laws
An investigation into the behavior of Zener diodes, focusing on:
-
Forward Bias
- Analysis of forward conduction characteristics
-
Inverse Bias
- Study of reverse breakdown behavior
- Voltage stabilization properties of the Zener diode
The following equipment and components were used during laboratory experimentation:
- DC Power Supply – Provides variable input voltage
- MCP MT8045 Multimeter – Digital and analog measurements
- M21-7000A Training System – Includes breadboard for circuit assembly
- Components
- Resistors: 4.7 kΩ, 150 Ω
- Silicon diodes
- Zener diodes
- Multisim – Simulation and verification of circuit behavior
- MS Visio – Creation of schematic diagrams for diode polarizations