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    Ugwu Bonaventure

    • I am a dedicated researcher with a profound interest in the field of cybersecurity. my academic journey began with an undergraduate degree in electrical/electronic engineering, which laid the foundation for my passion for technology and security. My research interests include such networking, underwater communications and cybersecurity. My notable academic contributions include a research project that led to the development of a versatile Bipolar Junction Transistor to Field Effect Transistor (BJT/FET) characteristic trainer. This ... moreedit
    This paper focuses on the development of a BJT/FET characteristic trainer, designed to facilitate practical understanding and application of Bipolar Junction Transistors (BJTs) and Field Effect Transistors (FETs) in amplifying electrical... more
    This paper focuses on the development of a BJT/FET characteristic trainer, designed to facilitate practical understanding and application of Bipolar Junction Transistors (BJTs) and Field Effect Transistors (FETs) in amplifying electrical signals. Unlike vacuum tubes, BJTs operate as current amplifying devices, while FETs rely on voltage changes. The paper explores the semiconductor materials crucial for transistor operations, particularly in generating, controlling, and amplifying analog or digital signals. It provides a detailed study of how NPN transistors, in particular, use a small current to control a larger current. Additionally, it outlines the fundamental concepts of FETs, with a specific focus on Junction Field Effect Transistors (JFETs). To establish the project's foundation, relevant literature was reviewed to understand prior work in this field. Design models and calculations were employed to analyze the transistor characteristic unit. The paper employs MATLAB/SIMULINK for theoretical modeling and simulation to assess the circuit's functionality, including key parameters such as voltages, resistance, current, transistor characteristics (hFEor β), and continuity. The results obtained from this study align with the design models, confirming the trainer's effectiveness in facilitating the practical understanding of BJTs and FETs.