Effect of Frequency Modulation on Input Current of Switch-Mode Power Converter

被引:0
作者
Stepins, Deniss [1 ]
机构
[1] Riga Tech Univ, Riga, Latvia
来源
39TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY (IECON 2013) | 2013年
关键词
DC-DC power converter; frequency modulation; electromagnetic interference; pulse width modulation; EMI REDUCTION;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Comprehensive theoretical analysis of the effect of switching frequency modulation (SFM) on input current of DC/DC switch-mode power converters (SMPC) operating in discontinuous conduction mode (DCM) is presented. Theoretical and SIMULINK simulation results are verified experimentally. Peak input and power components currents increase and low-frequency harmonics appear in the input current due to the use of SFM. Some considerations on the right choice of modulation parameters to reduce the negative effects considering also output voltage ripples and electromagnetic interference attenuation are proposed. The analysis performed can be very useful for a design of DC/DC SMPC with SFM in DCM.
引用
收藏
页码:683 / 688
页数:6
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