Electrical System Design

This project selects a MOSFET as the electronic load for measurement. The basic principle of the measurement involves utilizing Raspberry Pi 4B as the central processing unit (CPU) to transmit signals for regulating the gate-source voltage (VGS) of the MOSFET while simultaneously obtaining current and voltage readings from sensors. The process of converting analogue signals to digital signals between the Raspberry Pi and the measurement circuit has been facilitated by an Industrial Automation I/O Card for Raspberry Pi. In order to facilitate the display of the measurement progress and results, a Graphical User Interface (GUI) has been developed using PyQt5. The model’s portability and flexibility make it suitable for educational purposes, serving as a research and educational tool to demonstrate the development of I-V curves.