Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2012.07a
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- Pages.29-30
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- 2012
Operating Characteristics Analysis Of Bi-Directional DC/DC Converter using PFM control with high efficiency at whole load range
전 부하 영역에서 고효율을 가지는 PFM 제어를 이용한 양방향 DC/DC 컨버터의 동작특성 분석
- Kim, Ji-Hwan (SUNGKYUNKWAN UNIVERSITY) ;
- Hwang, Sun-Hee (SUNGKYUNKWAN UNIVERSITY) ;
- Ryu, Dong-Gyun (SUNGKYUNKWAN UNIVERSITY) ;
- Jung, Doo-Yong (SUNGKYUNKWAN UNIVERSITY) ;
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Jung, Yong-Chae
(NAMSEOUL UNIVERSITY)
;
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Won, Chung-Yuen
(SUNGKYUNKWAN UNIVERSITY)
- Published : 2012.07.03
Abstract
In this paper, a performance of bi-directional DC/DC converter using PFM control at whole load range is analyzed. A bi-directional DC/DC converter using PFM control in this paper can be soft switching operation with LC series resonant circuit. It's difficult to expect a high efficiency at whole load range in general resonant converter because of limitation of soft switching area. Therefore converter used in this paper has a variable frequency PFM control to overcome a limitation of soft switching area and it makes a high efficiency at whole load range by implementing a soft switching at light load area of restricted soft switching. The high efficiency at whole load range is verified by simulation and experimental result.
Keywords