Optimization of Modulation Waveforms for Improved EMI Attenuation in Switching Frequency Modulated Power Converters
Electromagnetic interference (EMI) is one of the major problems of switching power converters. This paper is devoted to switching frequency modulation used for conducted EMI suppression in switching power converters. Comprehensive theoretical analysis of switching power converter conducted EMI spect...
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| Format: | Article |
| Language: | English |
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VSB-Technical University of Ostrava
2015-01-01
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| Series: | Advances in Electrical and Electronic Engineering |
| Subjects: | |
| Online Access: | http://advances.utc.sk/index.php/AEEE/article/view/1142 |
| _version_ | 1827947566081245184 |
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| author | Deniss Stepins Jin Huang |
| author_facet | Deniss Stepins Jin Huang |
| author_sort | Deniss Stepins |
| collection | DOAJ |
| description | Electromagnetic interference (EMI) is one of the major problems of switching power converters. This paper is devoted to switching frequency modulation used for conducted EMI suppression in switching power converters. Comprehensive theoretical analysis of switching power converter conducted EMI spectrum and EMI attenuation due the use of traditional ramp and multislope ramp modulation waveforms is presented. Expressions to calculate EMI spectrum and attenuation are derived. Optimization procedure of the multislope ramp modulation waveform is proposed to get maximum benefits from switching frequency modulation for EMI reduction. Experimental verification is also performed to prove that the optimized multislope ramp modulation waveform is very useful solution for effective EMI reduction in switching power converters. |
| first_indexed | 2024-04-09T12:41:52Z |
| format | Article |
| id | doaj.art-6e596786ce7b404da0c4178007f5b0ed |
| institution | Directory Open Access Journal |
| issn | 1336-1376 1804-3119 |
| language | English |
| last_indexed | 2024-04-09T12:41:52Z |
| publishDate | 2015-01-01 |
| publisher | VSB-Technical University of Ostrava |
| record_format | Article |
| series | Advances in Electrical and Electronic Engineering |
| spelling | doaj.art-6e596786ce7b404da0c4178007f5b0ed2023-05-14T20:50:09ZengVSB-Technical University of OstravaAdvances in Electrical and Electronic Engineering1336-13761804-31192015-01-01131102110.15598/aeee.v13i1.1142714Optimization of Modulation Waveforms for Improved EMI Attenuation in Switching Frequency Modulated Power ConvertersDeniss Stepins0Jin Huang1Riga Technical UniversitySchool of Electrical and Electronic Engineering, Huazhong University of Science and TechnologyElectromagnetic interference (EMI) is one of the major problems of switching power converters. This paper is devoted to switching frequency modulation used for conducted EMI suppression in switching power converters. Comprehensive theoretical analysis of switching power converter conducted EMI spectrum and EMI attenuation due the use of traditional ramp and multislope ramp modulation waveforms is presented. Expressions to calculate EMI spectrum and attenuation are derived. Optimization procedure of the multislope ramp modulation waveform is proposed to get maximum benefits from switching frequency modulation for EMI reduction. Experimental verification is also performed to prove that the optimized multislope ramp modulation waveform is very useful solution for effective EMI reduction in switching power converters.http://advances.utc.sk/index.php/AEEE/article/view/1142electromagnetic interferencefrequency modulationoptimizationswitching power converter. |
| spellingShingle | Deniss Stepins Jin Huang Optimization of Modulation Waveforms for Improved EMI Attenuation in Switching Frequency Modulated Power Converters Advances in Electrical and Electronic Engineering electromagnetic interference frequency modulation optimization switching power converter. |
| title | Optimization of Modulation Waveforms for Improved EMI Attenuation in Switching Frequency Modulated Power Converters |
| title_full | Optimization of Modulation Waveforms for Improved EMI Attenuation in Switching Frequency Modulated Power Converters |
| title_fullStr | Optimization of Modulation Waveforms for Improved EMI Attenuation in Switching Frequency Modulated Power Converters |
| title_full_unstemmed | Optimization of Modulation Waveforms for Improved EMI Attenuation in Switching Frequency Modulated Power Converters |
| title_short | Optimization of Modulation Waveforms for Improved EMI Attenuation in Switching Frequency Modulated Power Converters |
| title_sort | optimization of modulation waveforms for improved emi attenuation in switching frequency modulated power converters |
| topic | electromagnetic interference frequency modulation optimization switching power converter. |
| url | http://advances.utc.sk/index.php/AEEE/article/view/1142 |
| work_keys_str_mv | AT denissstepins optimizationofmodulationwaveformsforimprovedemiattenuationinswitchingfrequencymodulatedpowerconverters AT jinhuang optimizationofmodulationwaveformsforimprovedemiattenuationinswitchingfrequencymodulatedpowerconverters |