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Article: Spectral characteristics of random carrier frequency switching in off-line switched mode power supply

TitleSpectral characteristics of random carrier frequency switching in off-line switched mode power supply
Authors
Tse, KKChung, Henry SHHui, SYRSo, HC
KeywordsElectric Network Analysis
Electromagnetic Wave Interference
Mathematical Models
Spectrum Analysis
Switching Circuits
Issue Date1999
Citation
Conference Proceedings - Ieee Applied Power Electronics Conference And Exposition - Apec, 1999, v. 1, p. 139-145 How to Cite?
AbstractIn this paper, a detailed analysis and the spectral characteristics of a random carrier-frequency (RCF) technique for suppressing conducted EMI in an off-line switched-mode power supply are presented. The analysis provides a theoretical platform for studying the characteristics of this random switching scheme. The level of randomness is defined for the RCF scheme and varied in the converter example so that its effects on the power spectra can be demonstrated. Theoretical predictions of the spectral characteristics of this scheme are confirmed with measurements. Comparisons of the spectral performance show that the RCF scheme has better conducted EMI suppression than the FM and standard PWM schemes.
Persistent Identifierhttp://hdl.handle.net/10722/136863

 

DC FieldValueLanguage
dc.contributor.authorTse, KKen_HK
dc.contributor.authorChung, Henry SHen_HK
dc.contributor.authorHui, SYRen_HK
dc.contributor.authorSo, HCen_HK
dc.date.accessioned2011-07-29T02:13:12Z-
dc.date.available2011-07-29T02:13:12Z-
dc.date.issued1999en_HK
dc.identifier.citationConference Proceedings - Ieee Applied Power Electronics Conference And Exposition - Apec, 1999, v. 1, p. 139-145en_HK
dc.identifier.urihttp://hdl.handle.net/10722/136863-
dc.description.abstractIn this paper, a detailed analysis and the spectral characteristics of a random carrier-frequency (RCF) technique for suppressing conducted EMI in an off-line switched-mode power supply are presented. The analysis provides a theoretical platform for studying the characteristics of this random switching scheme. The level of randomness is defined for the RCF scheme and varied in the converter example so that its effects on the power spectra can be demonstrated. Theoretical predictions of the spectral characteristics of this scheme are confirmed with measurements. Comparisons of the spectral performance show that the RCF scheme has better conducted EMI suppression than the FM and standard PWM schemes.en_HK
dc.languageengen_US
dc.relation.ispartofConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APECen_HK
dc.subjectElectric Network Analysisen_US
dc.subjectElectromagnetic Wave Interferenceen_US
dc.subjectMathematical Modelsen_US
dc.subjectSpectrum Analysisen_US
dc.subjectSwitching Circuitsen_US
dc.titleSpectral characteristics of random carrier frequency switching in off-line switched mode power supplyen_HK
dc.typeArticleen_HK
dc.identifier.emailHui, SYR:ronhui@eee.hku.hken_HK
dc.identifier.authorityHui, SYR=rp01510en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0032661726en_HK
dc.identifier.volume1en_HK
dc.identifier.spage139en_HK
dc.identifier.epage145en_HK
dc.identifier.scopusauthoridTse, KK=7102609811en_HK
dc.identifier.scopusauthoridChung, Henry SH=7404007467en_HK
dc.identifier.scopusauthoridHui, SYR=7202831744en_HK
dc.identifier.scopusauthoridSo, HC=7102300029en_HK

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