Abstract
This paper proposes a light-emitting diode (LED) lighting system using a dc-level dimming technique. This new dimming method realizes LED lamp control by having the LED drivers in the same zone recognize the level of their input voltage as a dimming signal with a dc-level dimmer and minimum communication interfaces. The proposed dc LED system also achieves improved system efficiency by matching the variable input voltage to the LED load conditions. Practical design guidelines for the LED driver circuit are presented for system implementation. The prototype circuit for a 24-W LED lamp is designed following the guidelines for verification. The proposed dc-level dimming system and the conventional dimming LED lighting system, which dispatches communication modules to individual drivers to obtain dimming signal, are implemented for a two-story parking lot and their performance is compared and evaluated. The experimental results of the prototype system show 6.8% energy saving compared with conventional lighting, which results from the improved driver efficiency and reduced standby power consumption.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Journal of Emerging and Selected Topics in Power Electronics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
