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

  • 제23권6호
  • /
  • Pages.397-402
  • /
  • 2018
  • /
  • 1229-2214(pISSN)
  • /
  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
권호 표지
DOI QR코드

DOI QR Code

보조 회로를 활용한 ZCZVT 소프트 스위칭 플라이백 컨버터

A Zero-Current-Zero-Voltage-Transition Flyback Converter using Auxiliary Circuit

  • Ju, Hyeon-Seung (Dept. of Electronic & Telecommunication Engineering Eng., Inje University) ;
  • Choi, Hyun-Chil (Dept. of Electronic Engineering Eng., Inje University)
  • 투고 : 2018.07.04
  • 심사 : 2018.07.27
  • 발행 : 2018.12.20
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, a high-efficiency flyback converter that uses a soft-switching auxiliary circuit is proposed. The structure of the proposed converter adds an inductor, switch, diode, and capacitor to the conventional flyback converter. The switch in the auxiliary circuit and the main switch are turned on and off under soft-switching conditions. Therefore, the switching losses of the proposed flyback converter are considerably smaller than those of conventional flyback converters. The performance of the proposed flyback converter is validated by experiments on a 100 W single-output flyback converter prototype, and design guidelines are presented.

키워드

JRJJC3_2018_v23n6_397_f0001.png 이미지

Fig. 1. Circuit of proposed ZCZVT flyback converter.

JRJJC3_2018_v23n6_397_f0002.png 이미지

Fig. 2. Operation modes of the proposed flyback converter.

JRJJC3_2018_v23n6_397_f0003.png 이미지

Fig. 3. Theoretical waveforms of proposed flyback converter.

JRJJC3_2018_v23n6_397_f0004.png 이미지

Fig. 4. Experimental result.

JRJJC3_2018_v23n6_397_f0005.png 이미지

Fig. 5. Experimental results of main switch Sm.

JRJJC3_2018_v23n6_397_f0006.png 이미지

Fig. 6. Effect of leakage inductance.

JRJJC3_2018_v23n6_397_f0007.png 이미지

Fig. 7. Experimental results of main switch Sm when main switch turn-off.

JRJJC3_2018_v23n6_397_f0008.png 이미지

Fig. 8. The competition of proposed converter and conventional converter.

참고문헌

  1. K. H. Chen and T. J. Liang, "Design of quasi-resonant flyback converter control IC with DCM and CCM operation," in IEEE Power Electronics Conference, pp. 2750-2753, 2014.
  2. 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," IEEE Electrical Machines and Systems (ICEMS), pp. 1-5, 2017.
  3. W. A. Tabisz, P. M. Gradzki, and F. C. Y. Lee, "Zero-voltage-switched quasi-resonant buck and flyback converters-experimental results at 10 MHz," IEEE Transactions on Power Electronics, pp. 194-204, 1989.
  4. N. Kasa, T. Iida, and A. K. S. Bhat, "Zero-voltage transition flyback inverter for small scale photovoltaic power system," in Power Electronics Specialists Conference, pp. 2098-2103, 2005.
  5. Z. Li, X. Zhang, W. Qian, and H. Bai, "A novel zero-current-transition PWM DC-DC converter with coupled inductor," in IEEE Power Electronics Conference, pp. 1-4, 2016.
  6. D. M. Bellur and M. K. Kazimierczuk, "Zero-currenttransition two-switch flyback pulse-width modulated DC-DC converter," IET Power Electronics, pp. 288-295, 2011.
  7. Y. C. Hsieh, M. R. Chen, and H. L. Cheng, "An interleaved flyback converter featured with zero-voltage transition," IEEE Transactions on Power Electronics, pp. 79-84, 2010.
  8. K. Soltanzadeh, H. Khalilian, and M. Dehghani, "Analysis, design and implementation of a zero voltage switching two-switch CCM flyback converter," IET Circuits, Devices & Systems, pp. 20-28, 2016.
  9. E. C. Lee and H. C. Choi, "A zero-current-transition syn chronous buck converter using auxiliary circuit with soft-switching," The Transactions of The Korean Institute of Power Electronics, Vol. 18, No. 4, pp. 359-366, Aug. 2013. https://doi.org/10.6113/TKPE.2013.18.4.359
  10. H. C. Choi, "A new soft-switched PWM boost converter with a lossless auxiliary circuit," The Transactions of The Korean Institute of Power Electronics, Vol. 11, No. 2, pp. 149-158, Apr. 2006.