Passive Lossless Snubbers Using the Coupled Inductor Method for the Soft Switching Capability of Boost PFC Rectifiers

In order to minimize switching losses for high power applications, a boost PFC rectifier with a novel passive lossless snubber circuit is proposed. The proposed lossless snubber is composed of coupled inductors merged into a boost inductor. This method compared with conventional methods does not need additional inductor cores and it reduces extra costs to implement a soft switching circuit. Especially, the proposed circuit can reduce the reverse recovery current of output diode rectifiers due to the coupling effect of the inductor. During turn-on and turn-off operating modes, the proposed PFC converter operates under soft switching conditions with high power conversion efficiency. In addition, the performance improvement and analysis of the operating effects of the coupled inductors were also presented and verified with a 3.3 kW prototype rectifier.

[1]  G. Joung,et al.  Battery discharger applications of high frequency boost converter with lossless snubber , 2002, 2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289).

[2]  L. Huber,et al.  Effect of Valley Switching and Switching-Frequency Limitation on Line-Current Distortions of DCM/CCM Boundary Boost PFC Converters , 2009, IEEE Transactions on Power Electronics.

[3]  Jong-Hyun Kim,et al.  A boost PFC rectifier with a passive lossless snubber circuit using coupled inductors methods , 2012 .

[4]  K.I. Hwu,et al.  A simple passive ZCS circuit for PFC converter , 2008, 2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition.

[5]  Chern-Lin Chen,et al.  Passive lossless snubbers for DC/DC converters , 1998 .

[6]  Wei Wang,et al.  Research on bridgeless Boost PFC with soft-switching , 2009, 2009 IEEE Vehicle Power and Propulsion Conference.

[7]  Jee-Hoon Jung,et al.  High-Efficiency Isolated Bidirectional AC–DC Converter for a DC Distribution System , 2013, IEEE Transactions on Power Electronics.

[8]  M. Corradin,et al.  Performance evaluation of a Schottky SiC power diode in a boost PFC application , 2002 .

[9]  Dylan Dah-Chuan Lu,et al.  Single-Stage AC/DC Boost–Forward Converter With High Power Factor and Regulated Bus and Output Voltages , 2009, IEEE Transactions on Industrial Electronics.

[10]  G. Deboy,et al.  Matched pair of CoolMOST/sup TM/ transistor with SiC-Schottky diode-advantages in application , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[11]  Wei Guo,et al.  Design of an 11 kW power factor correction and 10 kW ZVS DC/DC converter for a high-efficiency battery charger in electric vehicles , 2012 .

[12]  D.D.-C. Lu,et al.  A Single-Stage AC/DC Converter With High Power Factor, Regulated Bus Voltage, and Output Voltage , 2008, IEEE Transactions on Power Electronics.

[13]  Milan M. Jovanovic,et al.  A novel active snubber for high-power boost converters , 2000 .

[14]  Dehong Xu,et al.  A High-Efficiency Single-Phase AC/DC Converter With Enabling Window Control and Active Input Bridge , 2012, IEEE Transactions on Power Electronics.

[15]  Milan M. Jovanovic,et al.  State-of-the-art, single-phase, active power-factor-correction techniques for high-power applications - an overview , 2005, IEEE Transactions on Industrial Electronics.

[16]  Xiangning He,et al.  Single phase three-level power factor correction circuit with passive lossless snubber , 2002 .

[17]  Ching-Jung Tseng,et al.  Passive lossless snubbers for DC/DC converters , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

[18]  Milan M. Jovanovic,et al.  Performance Evaluation of Bridgeless PFC Boost Rectifiers , 2008 .

[19]  H.S.-H. Chung,et al.  Passive Lossless Snubber for Boost PFC With Minimum Voltage and Current Stress , 2010, IEEE Transactions on Power Electronics.

[20]  Xinbo Ruan,et al.  Interleaved Critical Current Mode Boost PFC Converter With Coupled Inductor , 2011, IEEE Transactions on Power Electronics.

[21]  Milan M. Jovanovic,et al.  Analysis, design, and performance evaluation of flying-capacitor passive lossless snubber applied to PFC boost converter , 2002, APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335).

[22]  A K Panda,et al.  A high performance single-phase AC-DC PFC boost converter with passive snubber circuit , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[23]  Wei Chen,et al.  PWM-Based Sliding Mode Controller for Three-Level Full-Bridge DC-DC Converter that Eliminates Static Output Voltage Error , 2015 .

[24]  Bor-Ren Lin,et al.  Medium Voltage Resonant Converter with Balanced Input Capacitor Voltages and Output Diode Currents , 2015 .