Development of Power Supply and Voltage Regulation Card (Power Card) and Filtered Power Supply Card (Filpo Card)

This research presented, implemented and evaluated a POWER card and FILPO Card using tailor-made PCB for electronics simulation. It was project 409. It was part of a larger project "Quantum Mechanics in Solid-State Electronics: Diode and Transistor Characteristics, and Circuit Applications Card." The goal of the project was to solve a widespread issue that exists in teaching: students using commercially available bench power supplies that obscure the magic inside them, such as rectification, filtering and regulation. Researcher used the ADDIE model (Analysis, Design, Development, Implementation and Evaluation) throughout all of the steps — from determining what was needed to creating schematics, designing PCB layouts, building prototypes, lab testing and evaluating effectiveness. It satisfied every electrical spec. The regulated outputs were extremely stable through no-load and full-load testing. Under full load, the +5V output was off by only 0.99%, and the +12V output was off by 1.49%. The filtering worked out as it should too; using a 1000 µF capacitor, the ripple voltage at 500 mA was reduced from 680 mV to just 310 mV (4.82% down to just over 2.18% ripple), while no-load ripple got as low as a mere 65mV or so (just under half of a percent). We conducted a survey of 35 students to test the usefulness of Technology Acceptance Model (TAM) specifically for teaching. They enjoyed it; the mean scores were 4.71 for usefulness, 4.61 for ease of use, 4.73 for wanting to use it again and a massive 4.78 for satisfaction. While in person, working with this card definitely helped them a lot to learn about rectification, filtering and regulation. At the end of the day, this is best in POWER card and FILPO Card It’s solid tech and good for learning. We recommend it to be integrated into electronics lab classes to make students learn more, build better skills, and motivate them towards power electronics.