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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.5
- 수록면
- 894 - 904 (11page)
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This study examines the zero-voltage switching (ZVS) operation of an active-clamped forward converter (ACFC) with a current-doubler rectifier (CDR). The ZVS condition can be obtained with a much smaller leakage inductance compared to that of a conventional ACFC. Due to the significantly reduced leakage inductance, the design is optimized and the circulating loss is reduced. The operation of the ACFC with a CDR is analyzed, and a detailed ZVS analysis is conducted on the basis of a steady-state analysis. From the results, a design consideration for ZVS improvement is presented. Loss analyses of the converters shows that enhanced soft-switching contributes to an efficiency improvement under light-load condition. Experimental results from a 100-W (5-V/20-A) prototype verify that the ACFC with a CDR can attain ZVS across an extended load range of loads and achieve a higher efficiency than conventional ACFCs.
목차
Abstract
I. INTRODUCTION
II. CIRCUIT CONFIGURATION
III. ZVSANALYSIS
IV. LOSS ANALYSIS
V. EXPERIMENTAL RESULTS
VI. CONCLUSIONS
REFERENCES
참고문헌 (35)
참고문헌 신청
J. A. Cobos, O. Garcia, J. Uceda, J. Sebastian, and E. de la
Cruz, “Comparison of high efficiency low output voltage
forward tolopogies,” in 25th Annual IEEE Power
Electronics Specialists Conference (PESC), Vol. 2, pp.
887-894, Jun. 1994.
R. Watson, F. C. Lee, and G. C. Hua, “Utilization of an
active-clamp circuit to achieve soft switching in flyback
converters,” IEEE Trans. Power Electron., Vol. 11, No. 1,
pp. 162-169, Jan. 1996.
Q. Li, F. C. Lee, and M. M. Jovanovic, “Design
considerations of transformer DC bias of forward converter
with active-clamp reset,” in 14th Annual Applied Power
Electronics Conference and Exposition (APEC), Vol. 1, pp.
553-559, Mar. 1999.
Y. Xi and P. K. Jain, “A forward converter topology
employing a resonant auxiliary circuit to achieve soft
switching and power transformer resetting,” IEEE Trans.
Ind. Electron., Vol. 50, No. 1, pp. 132-140, Feb. 2003.
V. Tuomainen and J. Kyyra, “Effect of resonant transition
on efficiency of forward converter with active clamp and
self-driven SRs,” IEEE Trans. Power Electron., Vol. 20, No.
2, pp. 315-323, Mar. 2005.
R. Watson, F. C. Lee, and G. C. Hua, “Utilization of an
active-clamp circuit to achieve soft switching in flyback
converters,” IEEE Trans. Power Electron., Vol. 11, No. 1,
pp. 162-169, Jan. 1996.
Q. Li, F. C. Lee, and M. M. Jovanovic, “Design
considerations of transformer DC bias of forward converter
with active-clamp reset,” in 14th Annual Applied Power
Electronics Conference and Exposition (APEC), Vol. 1, pp.
553-559, Mar. 1999.
Y. Xi and P. K. Jain, “A forward converter topology
employing a resonant auxiliary circuit to achieve soft
switching and power transformer resetting,” IEEE Trans.
Ind. Electron., Vol. 50, No. 1, pp. 132-140, Feb. 2003.
V. Tuomainen and J. Kyyra, “Effect of resonant transition
on efficiency of forward converter with active clamp and
self-driven SRs,” IEEE Trans. Power Electron., Vol. 20, No.
2, pp. 315-323, Mar. 2005.
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