Novel high step-up gain converters without forward and reverse recovery current issue of rectifying diodes

Isolated dc/dc converters' reliability suffers from forward/reverse recovery current issue of secondary rectifying diodes. In this paper, resonant double voltage rectifying technique is employed to eliminate this problem without any additional components added like that in variable frequency LLC circuits. And it still maintains fixed frequency features. Novel high step-up gain active clamp forward/flyback converter with voltage-doubler-rectifier (ACFF-VDR), interleaved ACFF-VDR, and push-pull-forward converter with voltage-doubler-rectifier (PPF-VDR) are proposed and evaluated. Design principles are also presented. Simulation and experimental results are provided for verification.

[1]  Fred C. Lee,et al.  A novel high-input-voltage, high efficiency and past transient voltage regulator module-push-pull forward converter , 1999, APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285).

[2]  Lee Jongjae,et al.  Dual Series-Resonant Active-Clamp Converter , 2008 .

[3]  Miro Milanovic,et al.  RC-RCD clamp circuit for ringing losses reduction in a flyback converter , 2006, IEEE Transactions on Circuits and Systems II: Express Briefs.

[4]  Woo-Jin Lee,et al.  A New Phase-Shifted Full-Bridge Converter With Voltage-Doubler-Type Rectifier for High-Efficiency PDP Sustaining Power Module , 2008, IEEE Transactions on Industrial Electronics.

[5]  Yi Zhao,et al.  Interleaved Converter With Voltage Multiplier Cell for High Step-Up and High-Efficiency Conversion , 2010, IEEE Transactions on Power Electronics.

[6]  Po-Yuan Chen,et al.  An Efficient Active LC Snubber for Forward Converters , 2009, IEEE Transactions on Power Electronics.

[7]  Bong-Hwan Kwon,et al.  A Step-Up DC–DC Converter With a Resonant Voltage Doubler , 2007, IEEE Transactions on Industrial Electronics.

[8]  Jung-Min Kwon,et al.  High Step-Up Active-Clamp Converter With Input-Current Doubler and Output-Voltage Doubler for Fuel Cell Power Systems , 2009 .

[9]  Wuhua Li,et al.  General Derivation Law of Nonisolated High-Step-Up Interleaved Converters With Built-In Transformer , 2012, IEEE Transactions on Industrial Electronics.

[10]  T. J. Liang,et al.  An isolated high step-up forward/flyback active-clamp converter with output voltage lift , 2010, 2010 IEEE Energy Conversion Congress and Exposition.

[11]  C. Adragna,et al.  Design-oriented steady-state analysis of LLC resonant converters based on FHA , 2006, International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006..

[12]  F.C. Lee,et al.  Design considerations for high-voltage high-power full-bridge zero-voltage-switched PWM converter , 1990, Fifth Annual Proceedings on Applied Power Electronics Conference and Exposition.

[13]  Wuhua Li,et al.  Review of Nonisolated High-Step-Up DC/DC Converters in Photovoltaic Grid-Connected Applications , 2011, IEEE Transactions on Industrial Electronics.