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The Transactions P of the Korean Institute of Electrical Engineers

Korean Journal of Air-Conditioning and Refrigeration Engineering

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Title	Study of DCM Interleaved Boost PFC Converter without the Detection of the Inductor Current
Authors	나재두(La, Jae-Du)
DOI	https://doi.org/10.5370/KIEEP.2016.65.4.303
Page	pp.303-308
ISSN	1229-800X
Keywords	PFC ; Interleaved boost converter ; DCM ; LED power supply
Abstract	A light-emitting diode (LED) has been increasingly applied to various industrial fields and general lightings because of its high efficiency, low power consumption, environment-friendly characteristic and long lifetime. To drive this LED lighting, various types of power converters have been applied. Also, power factor correction (PFC) techniques play an important role in the power supply technology. In this paper, design and control of a DCM interleaved boost PFC converter is discussed. The proposed converter can reduce current ripples at input and output side by cancelling an each phase of inductor currents. Since the IC does not require the auxiliary winding of inductor for current detection, simple PFC circuit is achieved. Therefore, it contributes to increase efficiency and downsize the whole system volume, cost. Also, the performance of the proposed system is demonstrated through experiments.

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