Single layer iron powder core inductor model and its effect on boost PFC EMI noise

In this paper, the single layer iron powder inductor's general math model is studied and the model equations are derived. The simulations and measurements are processed to verify the model. The relations of the boost inductor impedance and DM noise spectrum are addressed in detail. Some suggestions on boost inductors are given to reduce the DM noise.

[1]  F. Blache,et al.  Stray capacitances of two winding transformers: equivalent circuit, measurements, calculation and lowering , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[2]  Sol Rosenstark.  Transmission lines in computer engineering , 1994 .

[3]  M. Kazimierczuk,et al.  Modelling iron-powder inductors at high frequencies , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[4]  A. Massarini,et al.  Lumped parameter models for single- and multiple-layer inductors , 1996, PESC Record. 27th Annual IEEE Power Electronics Specialists Conference.

[5]  C. Joubert,et al.  High frequency model for power electronics capacitors , 2001 .

[6]  F.C. Lee,et al.  Improving the performance of boost PFC EMI filters , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..