Effectiveness of periodical frequency shift for radio frequency emission suppression in DC/DC converter

机译：周期性频移对DC / DC转换器中的射频发射抑制的有效性

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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.

机译：DC / DC转换器是射频噪声的源极。提出了通过开关频移的减排。高达30％的频率偏移可以在理论上给出20多秒的降噪。由于较高的谐波组合物，频移40-70％不太有效。实验表明了20％频率偏移的10 dB降噪。

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《Electromagnetic Compatibility and Electromagnetic Ecology, 2005. IEEE 6th International Symposium on》|2005年|P.19-21|共3页
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Worshevsky A.; Worshevsky P.;
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中图分类工业技术;
关键词
DC-DC power convertors; interference suppression; radiofrequency interference; DC-DC converter; emission suppression; harmonics composition; radio frequency noise reduction; switching frequency shift;

机译：DC-DC功率转换器;干扰抑制;射频干扰; DC-DC转换器;发射抑制;谐波成分;射频降噪;开关移频;

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2. EMI suppression with switching frequency modulated DC-DC converters [J] . Vilathgamuwa M., Deng J. IEEE Industry Applications Magazine . 1999,第6期

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4. Effectiveness of periodical frequency shift for radio frequency emission suppression in DC/DC converter [C] . Worshevsky A., Worshevsky P. IEEE International Symposium on Electromagnetic Compatibility and Electromagnetic Ecology . 2005

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Effectiveness of periodical frequency shift for radio frequency emission suppression in DC/DC converter

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