전압 전류 혼합구동방식을 적용한 동기정류기형 플라이백 DC-DC 컨버터

A Flyback DC-DC Converter Employing a Synchronous Rectifier Driven by a New Voltage/Current Mixed Method

  • 이달우 (청주대학교 전자공학과) ;
  • 안태영 (청주대학교 전자공학과)
  • 발행 : 2006.09.01

초록

This paper presents a new voltage/current mixed method for driving synchronous rectifiers (SR) adapted to the flyback topology. The synchronous rectifier driven by the proposed voltage/current mixed method can operate at a wide load range with high efficiency. The gate voltage of MOSFET in the synchronous rectifier can be easily controlled by changing the ratio of resistors, irrespective of a line and load fluctuation. A 200W (12V/17A) prototype converter was built and an efficiency of 93% was measured at 10A load current.

키워드

참고문헌

  1. N. G. Hingorani, 'Power Electronics in Electric Utilities : Role of Power Electronics in Future Power System,' Proceedings of the IEEE, Vol. 76, No. 4, April, 1988, pp. 481-482 https://doi.org/10.1109/5.4432
  2. Xuefei Xie, Joe Chui Pong Liu, Franki Ngai Kit Poon, Man Hay Pong 'A Novel High Frequency Current-Driven Synchronous Rectifier Applicable to Most Switching Topology' IEEE Transactions on Power Electronics, Vol. 16, pp .635-648, Vol. 16, no. 5, September 2001 https://doi.org/10.1109/63.949496
  3. Ron, Brown, Marco Ssoldano 'One Cycle Control IC Simplifies PFC Designs', As presented at APEC 2005 https://doi.org/10.1109/APEC.2005.1453075
  4. J. M. Zhang, X.G. Xie, D.Z. Jiao, Zhaoming Qian, 'A High Efficiency Adapter with Novel Current Driven Synchronous Rectifier' IEICE/IEEE INTELEC'03, pp. 205-210, Oct. 19-23, 2003
  5. Jonel Dan Jitaru, 'High Efficiency Flyback Converter using Synchronous Rectification' IEEE APEC 2002, pp. 867 - 871 https://doi.org/10.1109/APEC.2002.989345