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

The Korean Institute of Power Electronics (전력전자학회)
권호 표지
DOI QR코드

DOI QR Code

An Asymmetric Half-Bridge Converter with Reduced Transformer Offset Current in Wide Input Voltage Range

넓은 입력 전압 범위에서 작은 트랜스포머 오프셋 전류를 가지는 비대칭 하프-브리지 컨버터

  • Received : 2017.06.22
  • Accepted : 2017.08.15
  • Published : 2017.10.20
Download PDF
⟨ Previous Next ⟩

Abstract

An asymmetric half-bridge is one of the most promising topology in low-power application because of its small number of components and inherent zero-voltage switching capability. However, when it is designed taking into a hold-up time, it has large transformer offset current and small transformer turns-ratio, which severely decreases the total efficiency of s converter. In this paper, a new boost-integrated asymmetric half-bridge converter is proposed to solve these problems. The integrated boost converter compensates the hold-up time, thus facilitating optimal design in nominal state. As a result, the proposed converter can achieve high efficiency in nominal state. To verify the effectiveness of the proposed converter, an experiment is conducted using a 250-400 V input and 45 V/3.3 A output prototype.

Keywords

References

  1. B. Yang, X. Peng, and, F. C. Lee, "Range winding for wide input range front end DC/DC converter," in proc. IEEE Appl. Power Electron. Conf., pp. 476-479, Mar. 2001.
  2. X. Yan, H. Lipei, C. Xuansan, and S. Stan, "A combined front end DC/DC converter," in proc. IEEE Appl. Power Electron. Conf., pp. 1095-1099, Feb. 2003.
  3. P. Imbertson and N. Mohan, "Asymmetrical duty cycle permits zero switching loss in PWM circuits with no conduction loss penalty," IEEE Trans. Ind. Appl., Vol. 29, no. 1, pp. 121-125, Jan./Feb. 1993. https://doi.org/10.1109/28.195897
  4. J. Sebastian, J. A. Cobos, O. Garcia, and J. Uceda, "An overall study of the half-bridge complementary-control DC-to-DC converter," in proc. Power Electronics Specialists Conf, PESC'95, pp. 1229-1235, Jun. 1995.
  5. S. Korotkov, R. Miffakhutdinov, A. Nemchinov, and S. Fraidlin, "Asymmetrical half-bridge in a single stage PFC AC/DC converter," in proc. IEEE Appl. Power Electron. Conf., pp. 484-488, Feb. 1997.
  6. C. O. Yeon, J. B. Lee, I. O. Lee, and G. W. Moon, "Wide ZVS range asymmetric half-bridge converter with clamp switch and diode for high conversion efficiency," IEEE Trans. Ind. Electron., Vol. 63, No. 5, pp. 2862-2870, Jan. 2016. https://doi.org/10.1109/TIE.2016.2515567
  7. I. O. Lee and G. W. Moon, "A new asymmetrical half-bridge converter with zero DC-offset current in transformer," IEEE Trans. Power Electron., Vol. 28, No. 5, pp. 2297-2306, May 2013. https://doi.org/10.1109/TPEL.2012.2218258
  8. Y. Chuan, R. Xinbo, W. Xuehua, and C. K. Tse, "Isolated buck-boost DC/DC converters suitable for wide input-voltage range," IEEE Trans. Power Electron., Vol. 26, No. 9, pp. 2599-2613, Sep. 2011. https://doi.org/10.1109/TPEL.2011.2112672
  9. M. Hong, J. Abu-Qahouq, L. Shiguo, and I. Batarseh, "Zero-voltage-switching half-bridge DC-DC converter with modified PWM control method," IEEE Trans. Power Electron., Vol. 19, No. 4, pp. 947-958, Jul. 2004.