반도체디스플레이기술학회지 (Journal of the Semiconductor & Display Technology)

한국반도체디스플레이기술학회 (The Korean Society Of Semiconductor & Display Technology)
권호 표지

20W급 보조전원용 다출력 QR 플라이백 컨버터의 출력전압 안정화에 관한 연구

A Study on Output Voltage Stabilization of 20W Class Multi-output QR Flyback Converter for Auxiliary Power

  • 유정상 (청주대학교 전자공학과) ;
  • 길용만 (청주대학교 전자공학과) ;
  • 김현배 (청주대학교 전자공학과) ;
  • 안태영 (청주대학교 전자공학과)
  • Yoo, Jeong Sang (Department of Electronic Engineering, Cheongju University) ;
  • Gil, Yong Man (Department of Electronic Engineering, Cheongju University) ;
  • Kim, Hyun Bae (Department of Electronic Engineering, Cheongju University) ;
  • Ahn, Tae Young (Department of Electronic Engineering, Cheongju University)
  • 투고 : 2021.09.07
  • 심사 : 2021.09.16
  • 발행 : 2021.09.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, a 20W class multi-output QR flyback converter for auxiliary power supply was designed to stabilize 4 output voltages, and the efficiency and load characteristics were compared and analyzed. It was checked if each output affects other output characteristics through experiment. As a result, the experimental circuit reached a high efficiency of 82.5% or more at a load power of over 20W, and the maximum power loss was 2.6W. Consequently, it was confirmed that all of 4 output voltages of the multi-output QR flyback converter constructed in this paper were stabilized within 0.5% in full-load range, and each output was independently controlled in an electrically isolated state.

키워드

과제정보

본 연구는 2021년도 산업통상자원부의 재원으로 한국에너지기술평가원(KETEP)의 지원을 받아 수행한 연구과제입니다(No. 20192010106690).

참고문헌

  1. J. S. Yoo, T. Ahn, G. Yu, J. Lee and J. Lee, "A study on novel active clamp snubber applied DC-DC quasi resonant flyback converter to effectively reduce switch voltage surge," ICEMS, 2017, pp. 1-5.
  2. T. Ahn. "A Study on Switching Characteristics of Active Clamp Type Flyback Converter with Synchronous Rectifier Driving Signals Controlling Auxiliary Switch," Journal of The Korean Society of Semiconductor & Display Technology, vol. 17, no. 3, pp.21-26, 2018.
  3. K. Lee, S. Lim, Y. Jung, E. Oh, J. Lee. "High Efficiency AC-DC Converter Using Average-Current Mode Fly-back Topology for PDP and Improvement of Hold-up Characteristic" Journal of The Korean Society of Semiconductor & Display Technology, vol. 7, no. 2, pp.23-27, 2008.
  4. T. Ahn. "A Study on Quasi Resonant Converter with Low Switching Surge Voltage Characteristics by Applying Auxiliary Winding Type Active Snubber," Journal of The Korean Society of Semiconductor & Display Technology, vol. 17, no. 4, pp.56-61, 2018.
  5. S. Cho, J. Bang, Y. Lee, J. Jung. "The Digital Matching Network for a Ferromagnetic Inductively Coupled Plasma Driven at 400kHz" The Korean Society of Semiconductor & Display Technology Conference, 2007.