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노경호(Kyung Ho No),임병노(Byoung No Lim),박종연(Jong Yeun Park) 한국조명·전기설비학회 2005 한국조명·전기설비학회 학술대회논문집 Vol.2005 No.5월
In this paper, LED traffic signal lamp"s operating circuit using Flyback converter and PFC IC has been presented. Most power conversion circuits use PFC IC for Power Factor Correction. The design parameter"s value of Flyback converter has been proposed and the error amplifier which regulates the output voltage has been designed. Besides, the under voltage protection circuit and the over voltage protection circuit for protecting the operating circuit from unbalance of common electric power source and the temperature compensation circuit for fixed optical output power have been proposed.