Design consideration of the voltage stress clamping rectifier configuration used for the front-end Dc/Dc converter with the capacitive output filter

With the rapid development in portability of the consumer electronics, high conversion efficiency and high power density are going to be more and more important challenges of the power supply adapter design. Conventional centre tapped rectifier configuration with the capacitive output filter is widely used in the front-end Dc/Dc converters because of its inherent advantages in high efficiency and small occupied area. However, the intrinsic resonance between the leakage inductance of the power transformer and the output junction capacitance of the rectifier still exists in practical and the consideration voltage spike increase the voltage stress across the rectifier. This paper presents the detail design considerations for using the voltage stress clamping rectifier configuration in the front-end converter in order to obtain relative high conversion efficiency and high power density. A 300Watts prototype is built up to verify all the theoretical analysis.

[1]  D.M. Divan,et al.  A three-phase soft-switched high power density DC/DC converter for high power applications , 1988, Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.

[2]  Ching-Shan Leu,et al.  Improved Forward Topologies for DC-DC applications with Built-in Input Filter , 2006 .

[3]  Fan Zhang,et al.  A novel ZVS DC/DC converter for high power applications , 2002, APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335).

[4]  Chen Zhao,et al.  Optimum design considerations for Soft-switched Phase-shift Full-bridge converter with primary-side energy storage inductor , 2008, 2008 IEEE Power Electronics Specialists Conference.

[5]  F. Lee,et al.  LLC resonant converter for front end DC/DC conversion , 2002, APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335).

[6]  I. D. Jitaru,et al.  A 3 kW soft switching DC-DC converter , 2000, APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058).

[7]  Yan Liang,et al.  Optimal design methodology for LLC resonant converter , 2006, Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06..

[8]  Robert L. Steigerwald.  A comparison of half-bridge resonant converter topologies , 1987 .

[9]  Chen Zhao,et al.  The analysis and evaluation for the leakage inductance effects of two front-end Dc/Dc converters with capacitive output filter , 2008, INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference.

[10]  R. Martinelli,et al.  Steady-state analysis of the LLC series resonant converter , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).

[11]  Zhaoming Qian,et al.  Optimum Design Consideration and Implementation of a Novel Synchronous Rectified Soft-Switched Phase-Shift Full-Bridge Converter for Low-Output-Voltage High-Output-Current Applications , 2009, IEEE Transactions on Power Electronics.

[12]  Chen Zhao,et al.  Synchronous rectified Soft-Switched Phase-Shift Full-Bridge converter with primary energy storage inductor , 2008, 2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition.

[13]  Chen Zhao,et al.  Optimum Design Consideration and Implementation of a Novel Synchronous Rectified Soft-Switched Phase-Shift Full-Bridge Converter for Low-Output-Voltage High-Output-Current Applications , 2009 .