Title :
LED Lighting System Switched-Mode Power Supply
Author :
Kim, Byungcheul ; Jeon, Eui-Seok ; Kim, Chan
Author_Institution :
Dept. of Electron. Eng., Gyeongnam Nat. Univ. of Sci. & Technol., Jinju, South Korea
Abstract :
Methods for achieving high efficiency are studied for 15 W SMPS using flyback converter. Transformer in sandwich form is used to reduce leakage current. MOSFETs with low on-resistance are used to reduce energy loss. Schottky diode is used for output. Condenser with low internal equivalent series resistance is used as an output electrolytic condenser. This SMPS shows efficiency of 83.1% at 220 Vac input and 1.2A output current.
Keywords :
MOSFET; Schottky diodes; leakage currents; light emitting diodes; lighting; power transformers; switched mode power supplies; LED lighting system; MOSFET; Schottky diode; electrolytic condenser; flyback converter; internal equivalent series resistance; leakage current; power 15 W; switched-mode power supply; transformer; Light emitting diodes; Lighting; Resistance; Resistors; Schottky diodes; Switched-mode power supply; Voltage control;
Conference_Titel :
Engineering and Technology (S-CET), 2012 Spring Congress on
Conference_Location :
Xian
Print_ISBN :
978-1-4577-1965-3
DOI :
10.1109/SCET.2012.6342026
