Title :
Common-mode EMI reduction for PFC converter
Author :
Vimala, R. ; Baskaran, K. ; Britto, K. R Aravind
Author_Institution :
PSNACET, EEE, Dindigul, India
Abstract :
Interleaved multichannel power factor correction (PFC) converter is very popular today because of its ability to reduce input and output current ripples. In this paper, the common-mode (CM) electromagnetic interference noise emission model of the multichannel PFC converter is studied. A balance technique is introduced to reduce CM noise emission. To improve the high-frequency balance, a novel topology with coupled-inductor structure is proposed. Its CM noise model is derived and balance condition for minimizing CM noise is calculated. A two-channel PFC converter is built to verify the proposed balance technique. Simulation results show that CM noise can be reduced up to 20 dB between 150 kHz and 1 MHz.
Keywords :
electromagnetic interference; power convertors; power factor; power factor correction; PFC converter; common-mode EMI reduction; common-mode electromagnetic interference noise emission model; coupled-inductor structure; frequency 150 kHz to 1 MHz; high-frequency balance; multichannel power factor correction; Bridge circuits; Capacitors; Electromagnetic interference; Filters; Noise cancellation; Noise generators; Noise reduction; Parasitic capacitance; Power factor correction; Voltage; Electromagnetic interference (EMI); power factor correction (PFC);
Conference_Titel :
Control, Automation, Communication and Energy Conservation, 2009. INCACEC 2009. 2009 International Conference on
Conference_Location :
Perundurai, Tamilnadu
Print_ISBN :
978-1-4244-4789-3
