College - Author 1
College of Engineering
Department - Author 1
Electrical Engineering Department
Degree Name - Author 1
BS in Electrical Engineering
College - Author 2
College of Engineering
Department - Author 2
Electrical Engineering Department
Degree - Author 2
BS in Electrical Engineering
College - Author 3
College of Engineering
Department - Author 3
Electrical Engineering Department
Degree - Author 3
BS in Electrical Engineering
Date
6-2025
Primary Advisor
Taufik, College of Engineering, Electrical Engineering Department
Abstract/Summary
This senior project discusses and follows the development of the Advanced Light Dimming Power Converter meant to modernize the power electronics curriculum and improve student safety for a lab. The power converter attempts to replace the original experiment which includes a traditional TRIAC-based dimmer and focuses on demonstrating phase angle control for incandescent light bulbs. However, several drawbacks including high-voltage exposure and outdated technology warranted a revamp. The redesigned module includes a dual-experiment setup with an updated TRIAC-based dimmer circuit and a new AC-DC LED driver circuit with constant current control and PWM dimming capability. Both systems have been fabricated on the same printed circuit board and are housed in one intuitive and safe enclosure that supports hands-on learning without exposure to dangerous high-voltage circuitry. The redesign enables students to compare the outdated and modern dimming technologies while gaining practical skills in power efficiency evaluation and phase control. Thorough testing of the LED driver circuit reveals that it is able to deliver greater brightness at lower power consumption (8680 Lux at 12 W) than the TRIAC circuit (5446 Lux at 57.72 W), emphasizing the efficiency of modern technology. Overall, the module enhances safety and showcases relevant technology, exposing students to real-world power electronics applications.
URL: https://digitalcommons.calpoly.edu/eesp/695
PCB
ADVANCED_LIGHT_DIMMER_3D_PRINT.zip (132 kB)
3D Printing
Lab 3 Manual 2022.pdf (309 kB)
EE410 Lab Manual