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
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;
Conference_Titel :
Electromagnetic Compatibility and Electromagnetic Ecology, 2005. IEEE 6th International Symposium on
Print_ISBN :
0-7803-9374-0
DOI :
10.1109/EMCECO.2005.1513050
