Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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Study on the Power Factor Correction Circuit Applying Multiple Coupling Inductor with Expandable Integrated Magnetic Structure

확장형 자기 구조의 다중 결합 인덕터를 적용한 역률개선회로에 관한 연구

  • Yoo, Jeong Sang (Department of Electronic Engineering, Cheongju University) ;
  • Gil, Yong Man (Department of Electronic Engineering, Cheongju University) ;
  • Ahn, Tae Young (Department of Electronic Engineering, Cheongju University)
  • 유정상 (청주대학교 전자공학과) ;
  • 길용만 (청주대학교 전자공학과) ;
  • 안태영 (청주대학교 전자공학과)
  • Received : 2018.02.13
  • Accepted : 2018.03.23
  • Published : 2018.03.31
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Abstract

In this paper, a multiple coupling inductor with expandable-integrated magnetic structure was proposed to enable miniaturization of external switched mode power supply (SMPS) for a large display. Inductance formula of the proposed inductor structure was derived through magnetic circuit analysis for a simple inductance designing process. The proposed inductor was applied into a 1kW class interleaved bridgeless power factor correction circuit which requires four inductors, and experimental steady state result of the circuit was compared. According to the experimental result, it was found that the proposed multiple coupling inductor shows the electrical characteristics that can replace the conventional separated inductors and is suitable for miniaturization of the SMPS since the circuit configuration is possible with one shared inductor.

Keywords

References

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