DocumentCode
2082319
Title
Effectiveness of periodical frequency shift for radio frequency emission suppression in DC/DC converter
Author
Worshevsky, Alexander ; Worshevsky, Petr
Author_Institution
St. Petersburg Marine Tech. Univ., Russia
fYear
2005
fDate
21-24 June 2005
Firstpage
19
Lastpage
21
Abstract
A DC/DC converter is the source of radio frequency noise. Emission reduction by switching frequency shifts is proposed. Frequency shifts up to 30% can give more than 20 dB noise reduction in theory. Frequency shifts 40-70% are less effective due to higher harmonics composition. Experiments show 10 dB noise reduction for 20% frequency shifts.
Keywords
DC-DC power convertors; interference suppression; radiofrequency interference; DC-DC converter; emission suppression; harmonics composition; radio frequency noise reduction; switching frequency shift; DC-DC power converters; Electromagnetic compatibility; Frequency conversion; Noise reduction; Pulse generation; Radio frequency; Semiconductor device noise; Switches; Switching converters; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Electromagnetic Compatibility and Electromagnetic Ecology, 2005. IEEE 6th International Symposium on
Print_ISBN
0-7803-9374-0
Type
conf
DOI
10.1109/EMCECO.2005.1513050
Filename
1513050
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