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http://dx.doi.org/10.13067/JKIECS.2012.7.3.485

Design and Implementation of Transformerless 40W LED Light Driver Circuit for Ships  

Song, Jong-Kwan (경성대학교 전자공학과)
Park, Jang-Sik (경성대학교 전자공학과)
Yoon, Byung-Woo (경성대학교 전자공학과)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.7, no.3, 2012 , pp. 485-490 More about this Journal
Abstract
In this paper, driver circuit of LED lights for ships is designed and implemented to replace conventional lights with filament which have short life time due to vibration of ships. The driver of LED module is switching circuit without transformer to reduce volume and cost. As switch circuit controls input 220 VAC with PWM, LED module is reliably driven. Power factor is improved by using valley-fill PFC compensation circuit which is handled to pulse current of switching circuit. Serial-parallel LED circuit is applied to reduce change period of lights of long-term navigation ships. Array of serial-parallel can operate even if some of LEDs is damaged. It is suitable for ships that power consumption and power factor of lights including developed drive circuit have 39Watt and 0.925 respectively.
Keywords
LED lights; driver circuit; transformer; switching regulator; power factor;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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