Journal of the Institute of Electronics Engineers of Korea SC (전자공학회논문지SC)

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지

Soft recovery PWM Quasi-Resonance Converter With a Folding Snubber Network

접히는 특성을 가진 스너버 망으로 소프트하게 복귀하는 의사 펄스 폭 변조 컨버터

  • Jeong, Jin-Guk (Dept. of Electronic, Information & Communication, Daelim University Collage)
  • 정진국 (대림대학 전자정보통신계열)
  • Received : 2009.08.25
  • Accepted : 2010.03.03
  • Published : 2010.03.25
Download PDF
⟨ Previous Next ⟩

Abstract

Soft recovery (SR) quasi-resonant converter (QRC) including a Folding snubber network (FSN) is introduced. It is obtained by combining normal quasi-resonant converter with folding snubber network of which the surrounding components are composed of passive devices only (diodes and capacitors). The reverse recovery loss of the main rectifier diode is eliminated by this method utilizing quasi resonance with Folding snubber network. By realizing soft switching condition, the proposed converter has PWM capability with high efficiency and is suitable for high output current and high power DC to DC converter application.

반감(半減)되는 특성을 가진 폴딩 스너버 망을 내포하므로 소프트하게 역 복귀 되는 새로운 형태의 의사 공진 펄스 폭 변조 컨버터를 소개한다. 이 컨버터는 이미 소개된 기존의 QRC에 단지 수동소자만으로 구성된 폴딩 스너버를 결합하여 구현시켰다. 이용된 수동소자는 단지 다이오드와 케페시터로 구성되었다. 이렇게 제안된 펄스 폭 변조 컨버터의 효율은 매우 높아 대 전류를 출력시키는 DC-DC 컨버터의 응용에 매우 적합하다.

Keywords

References

  1. K. H. Liu and Fred C. Y. Lee, "Quasi-Resonant converters –Topologies and Characteristics" IEEE. Trans. on Power Electronics. Vol. PE-2, no.1, Jan. 1987.
  2. M. M. Jovanovic, C. Zhou and P. Liao, "Evaluation of Active and passive Snubber Techniques for Applications in Power-Factor-Correction Boost Converters," the 6th International Conference on Power Semiconductors and their Applications, Munich, 1992.
  3. G. Hua, C. S. Leu and F. C. Lee, "Zero-Voltage-Transition PWM Converters" Power Electronic Specialist Conference (PESC) 92, vol.1 pp.55-pp.61, 1992.
  4. J. K. Chung, G.H. Cho, "A new soft recovery PWM quasi-resonant converter with a folging snubber network" IEEE Trans. Industrial Electronics. Vol. 49. no 2, April, 2002.