Automatic tuning of coupled inductor filters

R. Balog1, P.T. Krein1
1Department of Electrical and Computer Engineering, University of Illinois, Urbana-Champaign, USA

Tóm tắt

A coupled inductor filter is presented with interesting notch mode filtering characteristics. Although this configuration has been long established, it has received little attention. The new contribution of this paper is to provide an automatic tuning process that can make use of the frequency domain characteristics of the coupled inductor building block. In a sense, this becomes an "active" filter technique that uses passive elements for implementation. The combination offers potential performance improvements in comparison with active filters.

Từ khóa

#Inductors #Active filters #Nonlinear filters #Coupling circuits #Magnetic separation #Passive filters #Frequency conversion #Magnetic devices #Circuit optimization #Smoothing methods

Tài liệu tham khảo

suranyi, 2001, System powering architectures part IV: The distribution bus, PCIM Magazine, 48 middlebrook, 1976, Input filter considerations in design and application of switching regulators, Proc IEEE Industry Applications Society Annual Meeting, 366 liu, 2001, Stability margin monitoring for DC distributed power systems via current/voltage perturbation, Proc IEEE Applied Power Electronics Conference, 2, 745 10.1109/PESC.2001.953991 10.1109/PESC.1996.548811 krein, 2001, Ripple correlation control, Nonlinear Phenomena in Power Electronics, 386 balog, 2000, Coupled Inductors - A Basic Filter Building Block, Proceedings Electrical Manufacturing & Coil Winding Association Conference, 271 10.1109/PESC.1999.785659