Title page for E-project-042909-014324

Project Type	MQP
Submission date	2009-04-29
Authors	Eugene Choi, ECE Robert J Gagliardi, ECE Brendan J Turcotte, ECE
URN	E-project-042909-014324
Sponsor	NECAMSID
Title	Prototype LED Lighting Control System
Advisors	McNeill, John A, EE Bitar, Stephen John, EE
Availability	unrestricted
Abstract This project involved the analysis, design and implementation of an LED lighting control system capable of producing white light with consistent color and intensity. Four monochromatic strings of red, green, blue and amber LED's were arranged in a staggered pattern for uniform color mixing and driven by a pulse width modulated (PWM) control system. Optical feedback was incorporated using a dual p-n junction photo sensor, providing balanced color mixing regardless of changes in LED junction temperature or manufacturing variations. Both LED duty cycle and peak current were successfully controlled to produce white light with the desired intensity and color temperature.
Files	Appendix_A-Source_Code.zip Appendix_B-MSP430F1611_Datasheet.pdf Appendix_C-MSP430x1xx_User_Guide.pdf Appendix_D-AD5324_Datasheet.pdf Appendix_E-ADL5310_Datasheet.pdf Appendix_F-WS-7.56_Sensor_Datasheet.pdf Appendix_G-WS-7.56_PCBA_Sensor_and_Circuit.pdf Appendix_H-Red_LED_Datasheet.pdf Appendix_I-Green_LED_Datasheet.pdf Appendix_J-Blue_LED_Datasheet.pdf Appendix_K-Amber_LED_Datasheet.pdf Prototype_LED_Lighting_Control_System_Report.pdf

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