DOI QR코드

DOI QR Code

고효율 공진형 비대칭 하프브리지 플라이백컨버터

High Efficiency Resonant Asymmetrical Half-Bridge Flyback Converter

  • 정강률 (순천향대학교 전자정보공학과) ;
  • 유두희 (순천향대학교 전자정보공학과)
  • 투고 : 2009.12.04
  • 심사 : 2010.01.11
  • 발행 : 2010.04.30

초록

본 논문에서는 고효율 공진형 비대칭 하프브리지 플라이백컨버터가 제안된다. 컨버터의 1차측 하프브리지 회로는 공진커패시턴스와 변압기 누설인덕턴스를 이용하여 비대칭 펄스폭변조(PWM; Pulse-Width Modulation) 방식에 의한 소프트스위칭 형태로 동작한다. 그리고 컨버터 2차측의 플라이백 회로는 간단한 구동회로에 의해 새로운 전압구동방식으로 동작하는 동기정류기를 이용한다. 제안된 컨버터는 이렇게 하여 컨버터의 전체효율을 향상시킨다. 또한 본 논문에서는 제안된 컨버터의 동작원리를 모드별로 설명하고 컨버터 설계 시의 고려사항과 프로토타입 컨버터의 설계 예를 각각 제시한다. 그리고 본 논문에서 제안하는 전압구동방식으로 동작하는 동기정류기의 간단한 구동기법에 관하여 간략하게 설명한다. 설계된 프로토타입 컨버터는 광범위 입력전압(교류 $V_{in,rms}$=75~265[V])이 가능하며 5[V]의 직류 출력전압과 100[W]의 출력전력을 가진다. 제안된 컨버터의 우수한 성능을 입증하기 위하여 설계된 파라미터로써 프로토타입 컨버터를 제작하여 실험하였으며, 이를 통하여 제안된 컨버터의 우수한 성능을 보인다.

This paper presents a high efficiency resonant asymmetrical half-bridge flyback converter. The primary half-bridge circuit of the converter operates by a soft-switching type using the asymmetrical pulse-width modulation (PWM) method with the resonant capacitance and transformer leakage inductance. The secondary flyback circuit of the proposed converter utilizes a synchronous rectifier, which operates by a new voltage-driven method with a simple drive circuit. Thus the proposed converter improves the total efficiency. This paper explains the operational principle of the proposed converter by each mode and shows the converter design consideration and a design example for the prototype converter, respectively. After that, the proposed simple driving technique of the synchronous rectifier by a voltage-driven method is explained, briefly. The designed prototype converter has wide input voltage (AC $V_{in,rms}$=75~265[V]), 5[V] DC output voltage, and 100[W] output power. To verify the excellent performance of the proposed converter, the designed prototype is implemented and experimented. The good performance of the proposed converter is shown through the experimental results.

키워드

참고문헌

  1. P. C. Heng and R. Oruganti, “Family of two-switch soft-switched asymmetrical PWM dc/dc converters,” IEEE PESC, vol. 1, pp. 85-94, 1994.
  2. R, Oruganti, C. H. Phus, and A. C. Liew, “Soft-switched dc/dc converter with PWM control,” IEEE Trans. on Power Electronics, vol. 13, no. 1, pp. 102-113, 1998. https://doi.org/10.1109/63.654964
  3. X. Xu, A. M. Khambadkone, and R. Oruganti, “Analysis and design of an optimized asymmetrical half bridge dc-dc converter,” IEEE PEDS, pp. 120-125, 2003.
  4. T. M. Chen and C. L. Chem, “Analysis and design of asymmetrical half bridge flyback converter,” IEE Electric Power Applications, vol. 149, no. 6, pp. 433-440, 2002. https://doi.org/10.1049/ip-epa:20020525
  5. K. Yoshida, T. Ishii, and N. Nagagata, “zero voltage switching approach for flyback converter,” IEEE INTELEC, pp. 324-329, 1992.
  6. D. H, Seo, O. J. Lee, S. H. Lim, and J. S. Park, “Asymmetrical PWM flyback converter,” IEEE PESC, pp. 848-852, 2000.
  7. Fabrizio Librizzi, “AC/DC Flyback Converter with Synchronous Rectification”, Power Semiconductor Devices and ICs, Proceedings. ISPSD. Vol. 16, pp. 63-66. 2004, May.
  8. Zhang, J.M, Xie, X.G. Jiao, D.Z. and Zhaoming Qian “A high efficiency adapter with novel current driven synchronous rectifier” Telecommunications Energy Conference, INTELEC , Vol. 25 pp. 205- 210, 2003, Oct.
  9. STSR30 Datasheet, STMicroelectronics.
  10. F. Librizzi, F. Lentini, “STSR30 implements synchronous rectification in flyback adaptors”, STMicroelectronics application note AN1804.
  11. Zhang, M. T., Jovanovic, M. M., and Lee, F. C. “Design consideration and performance evaluations of synchronous rectification in flyback converter” IEEE Transactions on Power Electronics, Vol. 13, No. 3, pp. 538-846, 1998, May. https://doi.org/10.1109/63.668117
  12. R. Watson, G. C. Hua, and F. C. Lee “Characterization of an Active Clamp Flyback Topology for Power Factor Correction Applications” IEEE Transactions on power electronics, Vol. 11, No. 1, pp. 191-198, 1996, Jan. https://doi.org/10.1109/63.484432

피인용 문헌

  1. The Ballast for HID Lamps of Preventing the Overvoltage with a Long Distance Resonant Ignition vol.29, pp.1, 2015, https://doi.org/10.5207/JIEIE.2015.29.1.094
  2. High Frequency Dual Mode Control LLC Resonant Converter with Wide Input Voltage Range vol.21, pp.2, 2016, https://doi.org/10.6113/TKPE.2016.21.2.102