Common Mode EMI Noise Suppression for Bridgeless PFC Converters

The goal of this paper is to study the possibility of minimizing common mode (CM) noise emission in bridgeless power factor correction (PFC) converters. Two approaches are proposed. In the first approach, the bridgeless PFC is modified to achieve symmetry. A CM noise model for symmetric topology is derived and the conditions for symmetry are summarized. Parasitics critical to the symmetrical condition are studied and carefully controlled. As a result, CM noise can be minimized with good cancellation. The second approach is to introduce a balance technique to bridgeless PFC converters. The topology is modified so that the balance technique can be applied so as to minimize CM noise. Experimental results validate that both approaches can greatly reduce CM noise up to 30 dBmuV. The two approaches are compared in terms of both its effects on CM noise and their implementations.

[1]  Mangesh Borage,et al.  Common-mode noise source and its passive cancellation in full-bridge resonant converter , 2003, 8th International Conference on Electromagnetic Interference and Compatibility.

[2]  D. Boroyevich,et al.  Modular-Terminal-Behavioral (MTB) Model for Characterizing Switching Module Conducted EMI Generation in Converter Systems , 2006, IEEE Transactions on Power Electronics.

[3]  B. Lu,et al.  Bridgeless PFC implementation using one cycle control technique , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[4]  Jianping Ying,et al.  Common mode noise modeling and analysis of dual boost PFC circuit , 2004, INTELEC 2004. 26th Annual International Telecommunications Energy Conference.

[5]  Milan M. Jovanovic,et al.  Performance Evaluation of Bridgeless PFC Boost Rectifiers , 2007, IEEE Transactions on Power Electronics.

[6]  N. K. Poon,et al.  A study of common mode noise in switching power supply from a current balancing viewpoint , 1999, Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475).

[7]  F.C. Lee,et al.  Characterization, evaluation, and design of noise Separator for conducted EMI noise diagnosis , 2005, IEEE Transactions on Power Electronics.

[8]  Tamotsu Ninomiya,et al.  Balanced switching converter to reduce common-mode conducted noise , 2003, IEEE Trans. Ind. Electron..

[9]  Dushan Boroyevich,et al.  Passive cancellation of common-mode noise in power electronic circuits , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[10]  J.D. van Wyk,et al.  Design of Inductor Winding Capacitance Cancellation for EMI Suppression , 2006, IEEE Transactions on Power Electronics.

[11]  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.

[12]  A. Pietkiewicz,et al.  Comparative analysis of 1-phase active power factor correction topologies , 1992, [Proceedings] Fourteenth International Telecommunications Energy Conference - INTELEC '92.

[13]  I.W. Hofsajer,et al.  Minimising conducted common mode EMI by charge balancing in a nonisolated DC-DC converter , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[14]  I. Barbi,et al.  High power factor rectifier with reduced conduction and commutation losses , 1999, 21st International Telecommunications Energy Conference. INTELEC '99 (Cat. No.99CH37007).

[15]  F.C. Lee,et al.  Common Mode Noise Reduction for Boost Converters Using General Balance Technique , 2006, IEEE Transactions on Power Electronics.