전력전자학회논문지 (The Transactions of the Korean Institute of Power Electronics)

  • 제20권5호
  • /
  • Pages.437-447
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  • 2015
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  • 1229-2214(pISSN)
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  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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통합변압기 적용 넓은 출력전압제어 LED 전원공급장치

An Integrated Transformer-based LED Power Supply with Wide-Output-Voltage Control

  • 투고 : 2014.12.29
  • 심사 : 2015.09.13
  • 발행 : 2015.10.20
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초록

In this paper, implementation of an integrated transformer applicable to power supply units (PSUs) for a 150-W LED with a wide range of output voltage is presented. The transformer is comprised of a PFC inductor and an LLC resonant transformer, each of which is placed and integrated on an E-I-E-type magnetic core. Integrated transformers with two different air gap topologies (i.e., the side and center gap topologies) are considered in the design phase to investigate their applicability. The design consideration on the LLC resonant converter used for the wide-output-voltage control ranges is described, and the overall performance of the proposed system is verified through realization of it onto a 150-W LED PSU board.

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참고문헌

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