Title :
Passive and active hybrid integrated EMI filters
Author :
Biela, J. ; Wirthmueller, A. ; Waespe, R. ; Heldwein, M.L. ; Kolar, J.W. ; Waffenschmidt, E.
Author_Institution :
Power Electron. Syst. Lab., Swiss Fed. Inst. of Technol., Zurich, Switzerland
Abstract :
Two new planar integrated EMI filter structures which reduce the filter volume and which are based on standard PCB process technology are presented in this paper. First, a passive integrated EMI filter is presented, which results in a volume reduction of 25% compared to the discrete solution. However, this filter requires a planar ferrite core for the CM inductor. In order to eliminate the ferrite core and reduce the filter volume further (-40% vs. discrete filter) a passive integrated structure is combined with an active EMI filtering circuit. The transfer function, the volume and the losses of the discrete and the two integrated filters, which are designed for a 600W PFC converter, are compared.
Keywords :
active filters; electromagnetic interference; ferrites; inductors; passive filters; power convertors; power factor correction; power filters; printed circuits; 600 W; PCB process technology; active integrated EMI filter; common mode inductor; passive integrated EMI filter; planar ferrite core; power converter; power factor correction; Active filters; Capacitors; Circuits; Electromagnetic interference; Ferrites; Inductors; Laboratories; Passive filters; Switching frequency; Transfer functions;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2006. APEC '06. Twenty-First Annual IEEE
Print_ISBN :
0-7803-9547-6
DOI :
10.1109/APEC.2006.1620688
