Effects of Increasing Switching Frequency in Frequency Modulated Power Converters
Proceedings of the 9th International Symposium on Electronics and Telecommunications (ISETC 2010)
2010
Jānis Jankovskis,
Deniss Stepins,
Dmitrijs Pikuļins
The paper considers the effect of increasing switching
frequency on a frequency modulated (FM) buck converter
parameters: efficiency, output voltage ripples and
electromagnetic interference (EMI) attenuations. The converter
operating in continuous and discontinuous conduction modes
(CCM and DCM respectively) is analyzed analytically, by
simulations in Simulink and experimentally. The results
obtained show that increasing switching frequency can
significantly reduce the ripples (especially in DCM) and improve
effectiveness of the use of FM to reduce EMI. Impact of
increasing the switching frequency on efficiency of FM
converter is also studied. It is found out that FM does not affect
efficiency within the broad range of switching frequencies. The
analysis provides useful data to improve the effectiveness of the
use of FM in switchmode converters.
Atslēgas vārdi
EMI, frequency modulation, buck converter
DOI
10.1109/ISETC.2010.5679316
Hipersaite
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5679316
Jankovskis, J., Stepins, D., Pikuļins, D. Effects of Increasing Switching Frequency in Frequency Modulated Power Converters. No: Proceedings of the 9th International Symposium on Electronics and Telecommunications (ISETC 2010), Rumānija, Timisoara, 11.-12. novembris, 2010. Timisoara: Faculty of Electronics and Telecommunications Association of Electrical Engineers from Timișoara, 2010, 115.-118.lpp. ISBN 978-1-4244-8457-7. Pieejams: doi:10.1109/ISETC.2010.5679316
Publikācijas valoda
English (en)