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Comparison of Common-Mode EMI Noise in a Phase-Shifted and Hard-Switched Full-Bridge Forward Converters
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| Author(s) |
Ishtiyaq Ahmed MAKDA |
| Abstract |
This paper presents the comparison of the common-mode (CM) noise in widely-used phase-shifted (PSFC) and hard-switched (HSFC) full-bridge forward converters. The CM noise voltages across the interleaved transformers' coupling capacitances - one of the significant parasitic coupling capacitances in the isolated converters - are analyzed for both types of switching schemes. Experimental prototypes are built for both switching techniques to verify the CM noise models and their analyses. In contrast to the state-of-the-art belief, the comparison reveals that PSFC generates far more CM noise than its counterpart for the same operating parameters. |
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| Filename: | 0050-epe2021-full-14570612.pdf |
| Filesize: | 867 KB |
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| Type |
Members Only |
| Date |
Last modified 2022-03-15 by System |
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