JIEIE - Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.

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Title	The Method of Reducing the Output Electrolytic Capacitance in Single Stage PFC flyback Converter
Authors	Jin-Gu Kim ; Chong-Yeon Park
DOI	http://dx.doi.org/10.5207/JIEIE.2015.29.9.081
Page	pp.81-88
ISSN	1225-1135
Keywords	Light Emitting Diode ; Single Stage PFC Flyback Converter ; Third Harmonic Current Injection Method
Abstract	LED has been great attentions in lighting industry because of its long life-time, high efficiency, excellent light output characteristics. However, the life-time of the LED driving system is decreased because of the electrolytic capacitor which is used in the power conversion system for driving LED lighting. Therefore the capacitance reduction methods have been studied to replace an electrolytic capacitor with film or tantalum capacitor. This paper presents the Single stage PFC flyback converter with the simplified third harmonic current injection circuit to reduce output capacitance and the proposed system is theoretically analyzed and verified through the experiment.

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